refactor: make use of strings.Cut

chore: Use pip3 explicitly to install yamllint
Distribution stends to skip unversionned pip for compatibility issues. Also, yamllint requires Python 3.8+. Signed-off-by: Étienne BERSAC <etienne.bersac@dalibo.com>
2024-04-21 12:31:38 +00:00 · 2023-10-06 14:22:22 +02:00 · 2023-10-06 14:12:00 +02:00 · 2023-10-06 14:12:00 +02:00 · 2023-10-06 14:09:32 +02:00 · 2023-10-05 22:52:58 +02:00
67 changed files with 1468 additions and 1632 deletions
@@ -13,3 +13,6 @@ indent_style = tab

 [{Makefile,*.mk}]
 indent_style = tab
+
+[*.nix]
+indent_size = 2
@@ -0,0 +1,4 @@
+if ! has nix_direnv_version || ! nix_direnv_version 2.3.0; then
+  source_url "https://raw.githubusercontent.com/nix-community/nix-direnv/2.3.0/direnvrc" "sha256-Dmd+j63L84wuzgyjITIfSxSD57Tx7v51DMxVZOsiUD8="
+fi
+use flake . --impure
@@ -11,8 +11,20 @@ jobs:

    steps:
      - name: Check minimum labels
-        uses: mheap/github-action-required-labels@v2
+        uses: mheap/github-action-required-labels@4e9ef4ce8c697cf55716ecbf7f13a3d9e0b6ac6a # v5.1.0
        with:
          mode: minimum
          count: 1
-          labels: "release-note/ignore, kind/feature, release-note/new-feature, kind/enhancement, release-note/enhancement, kind/bug, release-note/bug-fix, release-note/breaking-change, release-note/deprecation, area/dependencies, release-note/dependency-update"
+          labels: |
+            release-note/ignore
+            kind/feature
+            release-note/new-feature
+            kind/enhancement
+            release-note/enhancement
+            kind/bug
+            release-note/bug-fix
+            release-note/breaking-change
+            release-note/deprecation
+            area/dependencies
+            release-note/dependency-update
+            release-note/misc
@@ -2,58 +2,114 @@ name: CI

 on:
  push:
-    branches:
-      - master
+    branches: [master]
  pull_request:

 jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - goos: js
+            goarch: wasm
+          - goos: aix
+            goarch: ppc64
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4.1.0
+
+      - name: Set up Go
+        uses: actions/setup-go@93397bea11091df50f3d7e59dc26a7711a8bcfbe # v4.1.0
+        with:
+          go-version: '1.21'
+
+      - name: Build
+        run: go build .
+        env:
+          GOOS: ${{ matrix.goos }}
+          GOARCH: ${{ matrix.goarch }}
+
  test:
    name: Test
    runs-on: ${{ matrix.os }}
+
    strategy:
      # Fail fast is disabled because there are Go version specific features and tests
      # that should be able to fail independently.
      fail-fast: false
      matrix:
        os: [ubuntu-latest, macos-latest, windows-latest]
-        go: ['1.15', '1.16', '1.17', '1.18', '1.19']
-        tags: ['', 'viper_yaml2', 'viper_toml1']
-    env:
-      GOFLAGS: -mod=readonly
+        go: ['1.19', '1.20', '1.21']
+        tags: ['', 'finder']

    steps:
+      - name: Checkout repository
+        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4.1.0
+
      - name: Set up Go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@93397bea11091df50f3d7e59dc26a7711a8bcfbe # v4.1.0
        with:
          go-version: ${{ matrix.go }}

-      - name: Checkout code
-        uses: actions/checkout@v3
-
      - name: Test
-        run: go test -race -tags '${{ matrix.tags }}' -v ./...
+        run: go test -race -v -tags '${{ matrix.tags }}' ./...
        if: runner.os != 'Windows'

      - name: Test (without race detector)
-        run: go test -tags '${{ matrix.tags }}' -v ./...
+        run: go test -v -tags '${{ matrix.tags }}' ./...
        if: runner.os == 'Windows'

  lint:
    name: Lint
    runs-on: ubuntu-latest
-    env:
-      GOFLAGS: -mod=readonly

    steps:
-      - name: Set up Go
-        uses: actions/setup-go@v3
-        with:
-          go-version: 1.19
+      - name: Checkout repository
+        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4.1.0

-      - name: Checkout code
-        uses: actions/checkout@v3
+      - name: Set up Go
+        uses: actions/setup-go@93397bea11091df50f3d7e59dc26a7711a8bcfbe # v4.1.0
+        with:
+          go-version: '1.21'

      - name: Lint
-        uses: golangci/golangci-lint-action@v3
+        uses: golangci/golangci-lint-action@3a919529898de77ec3da873e3063ca4b10e7f5cc # v3.7.0
        with:
-          version: v1.49
+          version: v1.54.2
+
+  dev:
+    name: Developer environment
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4.1.0
+
+      - name: Set up Nix
+        uses: cachix/install-nix-action@6a9a9e84a173d90b3ffb42c5ddaf9ea033fad011 # v23
+        with:
+          extra_nix_config: |
+            access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
+
+      - name: Check
+        run: nix flake check --impure
+
+      - name: Dev shell
+        run: nix develop --impure
+
+  dependency-review:
+    name: Dependency review
+    runs-on: ubuntu-latest
+    if: github.event_name == 'pull_request'
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4.1.0
+
+      - name: Dependency Review
+        uses: actions/dependency-review-action@6c5ccdad469c9f8a2996bfecaec55a631a347034 # v3.1.0
@@ -39,11 +39,11 @@ jobs:

    steps:
    - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4.1.0

    # Initializes the CodeQL tools for scanning.
    - name: Initialize CodeQL
-      uses: github/codeql-action/init@v2
+      uses: github/codeql-action/init@ddccb873888234080b77e9bc2d4764d5ccaaccf9 # v2.21.9
      with:
        languages: ${{ matrix.language }}
        # If you wish to specify custom queries, you can do so here or in a config file.
@@ -54,7 +54,7 @@ jobs:
    # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
    # If this step fails, then you should remove it and run the build manually (see below)
    - name: Autobuild
-      uses: github/codeql-action/autobuild@v2
+      uses: github/codeql-action/autobuild@ddccb873888234080b77e9bc2d4764d5ccaaccf9 # v2.21.9

    # ℹ️ Command-line programs to run using the OS shell.
    # 📚 https://git.io/JvXDl
@@ -68,5 +68,5 @@ jobs:
    #   make release

    - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v2
+      uses: github/codeql-action/analyze@ddccb873888234080b77e9bc2d4764d5ccaaccf9 # v2.21.9

@@ -6,7 +6,7 @@ jobs:
  comment:
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/github-script@v6
+      - uses: actions/github-script@d7906e4ad0b1822421a7e6a35d5ca353c962f410 # v6.4.1
        with:
          github-token: ${{secrets.GITHUB_TOKEN}}
          script: |
@@ -6,7 +6,7 @@ jobs:
  comment:
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/github-script@v6
+      - uses: actions/github-script@d7906e4ad0b1822421a7e6a35d5ca353c962f410 # v6.4.1
        with:
          github-token: ${{secrets.GITHUB_TOKEN}}
          script: |
@@ -1,26 +0,0 @@
-name: WASM
-
-on:
-  push:
-    branches:
-      - master
-  pull_request:
-
-jobs:
-  build:
-    name: Build
-    runs-on: ubuntu-latest
-    env:
-      GOFLAGS: -mod=readonly
-
-    steps:
-      - name: Set up Go
-        uses: actions/setup-go@v3
-        with:
-          go-version: '1.17'
-
-      - name: Checkout code
-        uses: actions/checkout@v3
-
-      - name: Ensure Viper compiles for WASM
-        run: GOOS=js GOARCH=wasm go build .
@@ -1,4 +1,7 @@
+/.devenv/
+/.direnv/
 /.idea/
+/.pre-commit-config.yaml
 /bin/
 /build/
 /var/
@@ -16,7 +16,6 @@ linters:
    disable-all: true
    enable:
        - bodyclose
-        - deadcode
        - dogsled
        - dupl
        - durationcheck
@@ -43,14 +42,12 @@ linters:
        - rowserrcheck
        - sqlclosecheck
        - staticcheck
-        - structcheck
        - stylecheck
        - tparallel
        - typecheck
        - unconvert
        - unparam
        - unused
-        - varcheck
        - wastedassign
        - whitespace

@@ -83,6 +80,11 @@ linters:
        # - goheader
        # - gomodguard

+        # deprecated
+        # - deadcode
+        # - structcheck
+        # - varcheck
+
        # don't enable:
        # - asciicheck
        # - funlen
@@ -0,0 +1,2 @@
+# TODO: FIXME
+/.github/
@@ -0,0 +1,6 @@
+ignore-from-file: [.gitignore, .yamlignore]
+
+extends: default
+
+rules:
+  line-length: disable
@@ -15,8 +15,8 @@ TEST_FORMAT = short-verbose
 endif

 # Dependency versions
-GOTESTSUM_VERSION = 1.8.0
-GOLANGCI_VERSION = 1.49.0
+GOTESTSUM_VERSION = 1.9.0
+GOLANGCI_VERSION = 1.53.3

 # Add the ability to override some variables
 # Use with care
@@ -29,11 +29,6 @@ clear: ## Clear the working area and the project
 .PHONY: check
 check: test lint ## Run tests and linters

-bin/gotestsum: bin/gotestsum-${GOTESTSUM_VERSION}
-	@ln -sf gotestsum-${GOTESTSUM_VERSION} bin/gotestsum
-bin/gotestsum-${GOTESTSUM_VERSION}:
-	@mkdir -p bin
-	curl -L https://github.com/gotestyourself/gotestsum/releases/download/v${GOTESTSUM_VERSION}/gotestsum_${GOTESTSUM_VERSION}_${OS}_amd64.tar.gz | tar -zOxf - gotestsum > ./bin/gotestsum-${GOTESTSUM_VERSION} && chmod +x ./bin/gotestsum-${GOTESTSUM_VERSION}

 TEST_PKGS ?= ./...
 .PHONY: test
@@ -44,20 +39,36 @@ test: bin/gotestsum ## Run tests
 	@mkdir -p ${BUILD_DIR}
 	bin/gotestsum --no-summary=skipped --junitfile ${BUILD_DIR}/coverage.xml --format ${TEST_FORMAT} -- -race -coverprofile=${BUILD_DIR}/coverage.txt -covermode=atomic $(filter-out -v,${GOARGS}) $(if ${TEST_PKGS},${TEST_PKGS},./...)

-bin/golangci-lint: bin/golangci-lint-${GOLANGCI_VERSION}
-	@ln -sf golangci-lint-${GOLANGCI_VERSION} bin/golangci-lint
-bin/golangci-lint-${GOLANGCI_VERSION}:
-	@mkdir -p bin
-	curl -sfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | bash -s -- -b ./bin/ v${GOLANGCI_VERSION}
-	@mv bin/golangci-lint "$@"
-
 .PHONY: lint
-lint: bin/golangci-lint ## Run linter
-	bin/golangci-lint run
+lint: lint-go lint-yaml
+lint: ## Run linters

-.PHONY: fix
-fix: bin/golangci-lint ## Fix lint violations
-	bin/golangci-lint run --fix
+.PHONY: lint-go
+lint-go:
+	golangci-lint run $(if ${CI},--out-format github-actions,)
+
+.PHONY: lint-yaml
+lint-yaml:
+	yamllint $(if ${CI},-f github,) --no-warnings .
+
+.PHONY: fmt
+fmt: ## Format code
+	golangci-lint run --fix
+
+deps: bin/golangci-lint bin/gotestsum yamllint
+deps: ## Install dependencies
+
+bin/gotestsum:
+	@mkdir -p bin
+	curl -L https://github.com/gotestyourself/gotestsum/releases/download/v${GOTESTSUM_VERSION}/gotestsum_${GOTESTSUM_VERSION}_${OS}_amd64.tar.gz | tar -zOxf - gotestsum > ./bin/gotestsum && chmod +x ./bin/gotestsum
+
+bin/golangci-lint:
+	@mkdir -p bin
+	curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | bash -s -- v${GOLANGCI_VERSION}
+
+.PHONY: yamllint
+yamllint:
+	pip3 install --user yamllint

 # Add custom targets here
 -include custom.mk
@@ -8,10 +8,10 @@
 [![Mentioned in Awesome Go](https://awesome.re/mentioned-badge-flat.svg)](https://github.com/avelino/awesome-go#configuration)
 [![run on repl.it](https://repl.it/badge/github/sagikazarmark/Viper-example)](https://repl.it/@sagikazarmark/Viper-example#main.go)

-[![GitHub Workflow Status](https://img.shields.io/github/workflow/status/spf13/viper/CI?style=flat-square)](https://github.com/spf13/viper/actions?query=workflow%3ACI)
+[![GitHub Workflow Status](https://img.shields.io/github/actions/workflow/status/spf13/viper/ci.yaml?branch=master&style=flat-square)](https://github.com/spf13/viper/actions?query=workflow%3ACI)
 [![Join the chat at https://gitter.im/spf13/viper](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/spf13/viper?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 [![Go Report Card](https://goreportcard.com/badge/github.com/spf13/viper?style=flat-square)](https://goreportcard.com/report/github.com/spf13/viper)
-![Go Version](https://img.shields.io/badge/go%20version-%3E=1.15-61CFDD.svg?style=flat-square)
+![Go Version](https://img.shields.io/badge/go%20version-%3E=1.19-61CFDD.svg?style=flat-square)
 [![PkgGoDev](https://pkg.go.dev/badge/mod/github.com/spf13/viper)](https://pkg.go.dev/mod/github.com/spf13/viper)

 **Go configuration with fangs!**
@@ -27,6 +27,10 @@ Many Go projects are built using Viper including:
 * [doctl](https://github.com/digitalocean/doctl)
 * [Clairctl](https://github.com/jgsqware/clairctl)
 * [Mercure](https://mercure.rocks)
+* [Meshery](https://github.com/meshery/meshery)
+* [Bearer](https://github.com/bearer/bearer)
+* [Coder](https://github.com/coder/coder)
+* [Vitess](https://vitess.io/)


 ## Install
@@ -40,8 +44,8 @@ go get github.com/spf13/viper

 ## What is Viper?

-Viper is a complete configuration solution for Go applications including 12-Factor apps. It is designed
-to work within an application, and can handle all types of configuration needs
+Viper is a complete configuration solution for Go applications including [12-Factor apps](https://12factor.net/#the_twelve_factors).
+It is designed to work within an application, and can handle all types of configuration needs
 and formats. It supports:

 * setting defaults
@@ -137,7 +141,7 @@ if err := viper.ReadInConfig(); err != nil {
 // Config file found and successfully parsed
 ```

-*NOTE [since 1.6]:* You can also have a file without an extension and specify the format programmaticaly. For those configuration files that lie in the home of the user without any extension like `.bashrc`
+*NOTE [since 1.6]:* You can also have a file without an extension and specify the format programmatically. For those configuration files that lie in the home of the user without any extension like `.bashrc`

 ### Writing Config Files

@@ -218,6 +222,7 @@ These could be from a command line flag, or from your own application logic.
 ```go
 viper.Set("Verbose", true)
 viper.Set("LogFile", LogFile)
+viper.Set("host.port", 5899)   // set subset
 ```

 ### Registering and Using Aliases
@@ -484,6 +489,15 @@ err := viper.ReadRemoteConfig()

 Of course, you're allowed to use `SecureRemoteProvider` also

+
+#### NATS
+
+```go
+viper.AddRemoteProvider("nats", "nats://127.0.0.1:4222", "myapp.config")
+viper.SetConfigType("json")
+err := viper.ReadRemoteConfig()
+```
+
 ### Remote Key/Value Store Example - Encrypted

 ```go
@@ -531,19 +545,19 @@ go func(){
 In Viper, there are a few ways to get a value depending on the value’s type.
 The following functions and methods exist:

- * `Get(key string) : interface{}`
+ * `Get(key string) : any`
 * `GetBool(key string) : bool`
 * `GetFloat64(key string) : float64`
 * `GetInt(key string) : int`
 * `GetIntSlice(key string) : []int`
 * `GetString(key string) : string`
- * `GetStringMap(key string) : map[string]interface{}`
+ * `GetStringMap(key string) : map[string]any`
 * `GetStringMapString(key string) : map[string]string`
 * `GetStringSlice(key string) : []string`
 * `GetTime(key string) : time.Time`
 * `GetDuration(key string) : time.Duration`
 * `IsSet(key string) : bool`
- * `AllSettings() : map[string]interface{}`
+ * `AllSettings() : map[string]any`

 One important thing to recognize is that each Get function will return a zero
 value if it’s not found. To check if a given key exists, the `IsSet()` method
@@ -706,8 +720,8 @@ etc.

 There are two methods to do this:

- * `Unmarshal(rawVal interface{}) : error`
- * `UnmarshalKey(key string, rawVal interface{}) : error`
+ * `Unmarshal(rawVal any) : error`
+ * `UnmarshalKey(key string, rawVal any) : error`

 Example:

@@ -732,9 +746,9 @@ you have to change the delimiter:
 ```go
 v := viper.NewWithOptions(viper.KeyDelimiter("::"))

-v.SetDefault("chart::values", map[string]interface{}{
-	"ingress": map[string]interface{}{
-		"annotations": map[string]interface{}{
+v.SetDefault("chart::values", map[string]any{
+	"ingress": map[string]any{
+		"annotations": map[string]any{
 			"traefik.frontend.rule.type":                 "PathPrefix",
 			"traefik.ingress.kubernetes.io/ssl-redirect": "true",
 		},
@@ -743,7 +757,7 @@ v.SetDefault("chart::values", map[string]interface{}{

 type config struct {
 	Chart struct{
-		Values map[string]interface{}
+		Values map[string]any
 	}
 }

@@ -879,3 +893,31 @@ No, you will need to synchronize access to the viper yourself (for example by us
 ## Troubleshooting

 See [TROUBLESHOOTING.md](TROUBLESHOOTING.md).
+
+## Development
+
+**For an optimal developer experience, it is recommended to install [Nix](https://nixos.org/download.html) and [direnv](https://direnv.net/docs/installation.html).**
+
+_Alternatively, install [Go](https://go.dev/dl/) on your computer then run `make deps` to install the rest of the dependencies._
+
+Run the test suite:
+
+```shell
+make test
+```
+
+Run linters:
+
+```shell
+make lint # pass -j option to run them in parallel
+```
+
+Some linter violations can automatically be fixed:
+
+```shell
+make fmt
+```
+
+## License
+
+The project is licensed under the [MIT License](LICENSE).
@@ -1,11 +0,0 @@
-//go:build viper_logger
-// +build viper_logger
-
-package viper
-
-// WithLogger sets a custom logger.
-func WithLogger(l Logger) Option {
-	return optionFunc(func(v *Viper) {
-		v.logger = l
-	})
-}
@@ -30,7 +30,7 @@ func (p pflagValueSet) VisitAll(fn func(flag FlagValue)) {
 	})
 }

-// pflagValue is a wrapper aroung *pflag.flag
+// pflagValue is a wrapper around *pflag.flag
 // that implements FlagValue
 type pflagValue struct {
 	flag *pflag.Flag
@@ -39,7 +39,7 @@ func TestBindFlagValueSet(t *testing.T) {
 	})

 	for name, expected := range mutatedTestValues {
-		assert.Equal(t, Get(name), expected)
+		assert.Equal(t, expected, Get(name))
 	}
 }

@@ -0,0 +1,255 @@
+{
+  "nodes": {
+    "devenv": {
+      "inputs": {
+        "flake-compat": "flake-compat",
+        "nix": "nix",
+        "nixpkgs": "nixpkgs",
+        "pre-commit-hooks": "pre-commit-hooks"
+      },
+      "locked": {
+        "lastModified": 1687972261,
+        "narHash": "sha256-+mxvZfwMVoaZYETmuQWqTi/7T9UKoAE+WpdSQkOVJ2g=",
+        "owner": "cachix",
+        "repo": "devenv",
+        "rev": "e85df562088573305e55906eaa964341f8cb0d9f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "repo": "devenv",
+        "type": "github"
+      }
+    },
+    "flake-compat": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1673956053,
+        "narHash": "sha256-4gtG9iQuiKITOjNQQeQIpoIB6b16fm+504Ch3sNKLd8=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "35bb57c0c8d8b62bbfd284272c928ceb64ddbde9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
+    "flake-parts": {
+      "inputs": {
+        "nixpkgs-lib": "nixpkgs-lib"
+      },
+      "locked": {
+        "lastModified": 1687762428,
+        "narHash": "sha256-DIf7mi45PKo+s8dOYF+UlXHzE0Wl/+k3tXUyAoAnoGE=",
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "rev": "37dd7bb15791c86d55c5121740a1887ab55ee836",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "type": "github"
+      }
+    },
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1667395993,
+        "narHash": "sha256-nuEHfE/LcWyuSWnS8t12N1wc105Qtau+/OdUAjtQ0rA=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "5aed5285a952e0b949eb3ba02c12fa4fcfef535f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "gitignore": {
+      "inputs": {
+        "nixpkgs": [
+          "devenv",
+          "pre-commit-hooks",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1660459072,
+        "narHash": "sha256-8DFJjXG8zqoONA1vXtgeKXy68KdJL5UaXR8NtVMUbx8=",
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "rev": "a20de23b925fd8264fd7fad6454652e142fd7f73",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "type": "github"
+      }
+    },
+    "lowdown-src": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1633514407,
+        "narHash": "sha256-Dw32tiMjdK9t3ETl5fzGrutQTzh2rufgZV4A/BbxuD4=",
+        "owner": "kristapsdz",
+        "repo": "lowdown",
+        "rev": "d2c2b44ff6c27b936ec27358a2653caaef8f73b8",
+        "type": "github"
+      },
+      "original": {
+        "owner": "kristapsdz",
+        "repo": "lowdown",
+        "type": "github"
+      }
+    },
+    "nix": {
+      "inputs": {
+        "lowdown-src": "lowdown-src",
+        "nixpkgs": [
+          "devenv",
+          "nixpkgs"
+        ],
+        "nixpkgs-regression": "nixpkgs-regression"
+      },
+      "locked": {
+        "lastModified": 1676545802,
+        "narHash": "sha256-EK4rZ+Hd5hsvXnzSzk2ikhStJnD63odF7SzsQ8CuSPU=",
+        "owner": "domenkozar",
+        "repo": "nix",
+        "rev": "7c91803598ffbcfe4a55c44ac6d49b2cf07a527f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "domenkozar",
+        "ref": "relaxed-flakes",
+        "repo": "nix",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1678875422,
+        "narHash": "sha256-T3o6NcQPwXjxJMn2shz86Chch4ljXgZn746c2caGxd8=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "126f49a01de5b7e35a43fd43f891ecf6d3a51459",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-lib": {
+      "locked": {
+        "dir": "lib",
+        "lastModified": 1685564631,
+        "narHash": "sha256-8ywr3AkblY4++3lIVxmrWZFzac7+f32ZEhH/A8pNscI=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "4f53efe34b3a8877ac923b9350c874e3dcd5dc0a",
+        "type": "github"
+      },
+      "original": {
+        "dir": "lib",
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-regression": {
+      "locked": {
+        "lastModified": 1643052045,
+        "narHash": "sha256-uGJ0VXIhWKGXxkeNnq4TvV3CIOkUJ3PAoLZ3HMzNVMw=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "215d4d0fd80ca5163643b03a33fde804a29cc1e2",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "215d4d0fd80ca5163643b03a33fde804a29cc1e2",
+        "type": "github"
+      }
+    },
+    "nixpkgs-stable": {
+      "locked": {
+        "lastModified": 1678872516,
+        "narHash": "sha256-/E1YwtMtFAu2KUQKV/1+KFuReYPANM2Rzehk84VxVoc=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "9b8e5abb18324c7fe9f07cb100c3cd4a29cda8b8",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-22.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1687886075,
+        "narHash": "sha256-PeayJDDDy+uw1Ats4moZnRdL1OFuZm1Tj+KiHlD67+o=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "a565059a348422af5af9026b5174dc5c0dcefdae",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "pre-commit-hooks": {
+      "inputs": {
+        "flake-compat": [
+          "devenv",
+          "flake-compat"
+        ],
+        "flake-utils": "flake-utils",
+        "gitignore": "gitignore",
+        "nixpkgs": [
+          "devenv",
+          "nixpkgs"
+        ],
+        "nixpkgs-stable": "nixpkgs-stable"
+      },
+      "locked": {
+        "lastModified": 1686050334,
+        "narHash": "sha256-R0mczWjDzBpIvM3XXhO908X5e2CQqjyh/gFbwZk/7/Q=",
+        "owner": "cachix",
+        "repo": "pre-commit-hooks.nix",
+        "rev": "6881eb2ae5d8a3516e34714e7a90d9d95914c4dc",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "repo": "pre-commit-hooks.nix",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "devenv": "devenv",
+        "flake-parts": "flake-parts",
+        "nixpkgs": "nixpkgs_2"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
@@ -0,0 +1,56 @@
+{
+  description = "Viper";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    flake-parts.url = "github:hercules-ci/flake-parts";
+    devenv.url = "github:cachix/devenv";
+  };
+
+  outputs = inputs@{ flake-parts, ... }:
+    flake-parts.lib.mkFlake { inherit inputs; } {
+      imports = [
+        inputs.devenv.flakeModule
+      ];
+
+      systems = [ "x86_64-linux" "x86_64-darwin" "aarch64-darwin" ];
+
+      perSystem = { config, self', inputs', pkgs, system, ... }: rec {
+        devenv.shells = {
+          default = {
+            languages = {
+              go.enable = true;
+            };
+
+            pre-commit.hooks = {
+              nixpkgs-fmt.enable = true;
+              yamllint.enable = true;
+            };
+
+            packages = with pkgs; [
+              gnumake
+
+              golangci-lint
+              yamllint
+            ];
+
+            scripts = {
+              versions.exec = ''
+                go version
+                golangci-lint version
+              '';
+            };
+
+            enterShell = ''
+              versions
+            '';
+
+            # https://github.com/cachix/devenv/issues/528#issuecomment-1556108767
+            containers = pkgs.lib.mkForce { };
+          };
+
+          ci = devenv.shells.default;
+        };
+      };
+    };
+}
@@ -1,65 +0,0 @@
-//go:build go1.16 && finder
-// +build go1.16,finder
-
-package viper
-
-import (
-	"errors"
-	"io/fs"
-	"path"
-)
-
-type finder struct {
-	paths      []string
-	fileNames  []string
-	extensions []string
-
-	withoutExtension bool
-}
-
-func (f finder) Find(fsys fs.FS) (string, error) {
-	for _, searchPath := range f.paths {
-		for _, fileName := range f.fileNames {
-			for _, extension := range f.extensions {
-				filePath := path.Join(searchPath, fileName+"."+extension)
-
-				ok, err := fileExists(fsys, filePath)
-				if err != nil {
-					return "", err
-				}
-
-				if ok {
-					return filePath, nil
-				}
-			}
-
-			if f.withoutExtension {
-				filePath := path.Join(searchPath, fileName)
-
-				ok, err := fileExists(fsys, filePath)
-				if err != nil {
-					return "", err
-				}
-
-				if ok {
-					return filePath, nil
-				}
-			}
-		}
-	}
-
-	return "", nil
-}
-
-func fileExists(fsys fs.FS, filePath string) (bool, error) {
-	fileInfo, err := fs.Stat(fsys, filePath)
-	if err == nil {
-		return !fileInfo.IsDir(), nil
-	}
-
-	if errors.Is(err, fs.ErrNotExist) {
-		return false, nil
-	}
-
-	return false, err
-}
@@ -1,100 +0,0 @@
-//go:build go1.16 && finder
-// +build go1.16,finder
-
-package viper
-
-import (
-	"io/fs"
-	"testing"
-	"testing/fstest"
-
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-)
-
-func TestFinder(t *testing.T) {
-	t.Parallel()
-
-	fsys := fstest.MapFS{
-		"home/user/.config":            &fstest.MapFile{},
-		"home/user/config.json":        &fstest.MapFile{},
-		"home/user/config.yaml":        &fstest.MapFile{},
-		"home/user/data.json":          &fstest.MapFile{},
-		"etc/config/.config":           &fstest.MapFile{},
-		"etc/config/a_random_file.txt": &fstest.MapFile{},
-		"etc/config/config.json":       &fstest.MapFile{},
-		"etc/config/config.yaml":       &fstest.MapFile{},
-		"etc/config/config.xml":        &fstest.MapFile{},
-	}
-
-	testCases := []struct {
-		name   string
-		fsys   func() fs.FS
-		finder finder
-		result string
-	}{
-		{
-			name: "find file",
-			fsys: func() fs.FS { return fsys },
-			finder: finder{
-				paths:      []string{"etc/config"},
-				fileNames:  []string{"config"},
-				extensions: []string{"json"},
-			},
-			result: "etc/config/config.json",
-		},
-		{
-			name: "file not found",
-			fsys: func() fs.FS { return fsys },
-			finder: finder{
-				paths:      []string{"var/config"},
-				fileNames:  []string{"config"},
-				extensions: []string{"json"},
-			},
-			result: "",
-		},
-		{
-			name:   "empty search params",
-			fsys:   func() fs.FS { return fsys },
-			finder: finder{},
-			result: "",
-		},
-		{
-			name: "precedence",
-			fsys: func() fs.FS { return fsys },
-			finder: finder{
-				paths:      []string{"var/config", "home/user", "etc/config"},
-				fileNames:  []string{"aconfig", "config"},
-				extensions: []string{"zml", "xml", "json"},
-			},
-			result: "home/user/config.json",
-		},
-		{
-			name: "without extension",
-			fsys: func() fs.FS { return fsys },
-			finder: finder{
-				paths:      []string{"var/config", "home/user", "etc/config"},
-				fileNames:  []string{".config"},
-				extensions: []string{"zml", "xml", "json"},
-
-				withoutExtension: true,
-			},
-			result: "home/user/.config",
-		},
-	}
-
-	for _, testCase := range testCases {
-		testCase := testCase
-
-		t.Run(testCase.name, func(t *testing.T) {
-			t.Parallel()
-
-			fsys := testCase.fsys()
-
-			result, err := testCase.finder.Find(fsys)
-			require.NoError(t, err)
-
-			assert.Equal(t, testCase.result, result)
-		})
-	}
-}
@@ -1,72 +1,87 @@
 module github.com/spf13/viper

-go 1.17
+go 1.18

 require (
-	github.com/fsnotify/fsnotify v1.5.4
+	github.com/fsnotify/fsnotify v1.6.0
 	github.com/hashicorp/hcl v1.0.0
-	github.com/magiconair/properties v1.8.6
+	github.com/magiconair/properties v1.8.7
 	github.com/mitchellh/mapstructure v1.5.0
-	github.com/pelletier/go-toml v1.9.5
-	github.com/pelletier/go-toml/v2 v2.0.5
-	github.com/sagikazarmark/crypt v0.6.0
-	github.com/spf13/afero v1.8.2
-	github.com/spf13/cast v1.5.0
-	github.com/spf13/jwalterweatherman v1.1.0
+	github.com/pelletier/go-toml/v2 v2.1.0
+	github.com/sagikazarmark/crypt v0.15.0
+	github.com/sagikazarmark/locafero v0.3.0
+	github.com/sagikazarmark/slog-shim v0.1.0
+	github.com/spf13/afero v1.10.0
+	github.com/spf13/cast v1.5.1
 	github.com/spf13/pflag v1.0.5
-	github.com/stretchr/testify v1.8.0
-	github.com/subosito/gotenv v1.4.1
+	github.com/stretchr/testify v1.8.4
+	github.com/subosito/gotenv v1.6.0
 	gopkg.in/ini.v1 v1.67.0
-	gopkg.in/yaml.v2 v2.4.0
 	gopkg.in/yaml.v3 v3.0.1
 )

 require (
-	cloud.google.com/go v0.100.2 // indirect
-	cloud.google.com/go/compute v1.6.1 // indirect
-	cloud.google.com/go/firestore v1.6.1 // indirect
-	github.com/armon/go-metrics v0.3.10 // indirect
+	cloud.google.com/go v0.110.7 // indirect
+	cloud.google.com/go/compute v1.23.0 // indirect
+	cloud.google.com/go/compute/metadata v0.2.3 // indirect
+	cloud.google.com/go/firestore v1.13.0 // indirect
+	cloud.google.com/go/longrunning v0.5.1 // indirect
+	github.com/armon/go-metrics v0.4.1 // indirect
 	github.com/coreos/go-semver v0.3.0 // indirect
 	github.com/coreos/go-systemd/v22 v22.3.2 // indirect
-	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/fatih/color v1.13.0 // indirect
+	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
+	github.com/fatih/color v1.14.1 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
-	github.com/golang/protobuf v1.5.2 // indirect
-	github.com/google/go-cmp v0.5.8 // indirect
-	github.com/googleapis/gax-go/v2 v2.4.0 // indirect
-	github.com/hashicorp/consul/api v1.12.0 // indirect
+	github.com/golang/protobuf v1.5.3 // indirect
+	github.com/google/go-cmp v0.5.9 // indirect
+	github.com/google/s2a-go v0.1.7 // indirect
+	github.com/googleapis/enterprise-certificate-proxy v0.3.1 // indirect
+	github.com/googleapis/gax-go/v2 v2.12.0 // indirect
+	github.com/hashicorp/consul/api v1.25.1 // indirect
 	github.com/hashicorp/go-cleanhttp v0.5.2 // indirect
-	github.com/hashicorp/go-hclog v1.2.0 // indirect
+	github.com/hashicorp/go-hclog v1.5.0 // indirect
 	github.com/hashicorp/go-immutable-radix v1.3.1 // indirect
 	github.com/hashicorp/go-rootcerts v1.0.2 // indirect
 	github.com/hashicorp/golang-lru v0.5.4 // indirect
-	github.com/hashicorp/serf v0.9.7 // indirect
+	github.com/hashicorp/serf v0.10.1 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
-	github.com/mattn/go-colorable v0.1.12 // indirect
-	github.com/mattn/go-isatty v0.0.14 // indirect
+	github.com/klauspost/compress v1.17.0 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-isatty v0.0.17 // indirect
+	github.com/minio/highwayhash v1.0.2 // indirect
 	github.com/mitchellh/go-homedir v1.1.0 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/nats-io/jwt/v2 v2.4.1 // indirect
+	github.com/nats-io/nats.go v1.30.2 // indirect
+	github.com/nats-io/nkeys v0.4.5 // indirect
+	github.com/nats-io/nuid v1.0.1 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
-	github.com/pmezard/go-difflib v1.0.0 // indirect
-	go.etcd.io/etcd/api/v3 v3.5.4 // indirect
-	go.etcd.io/etcd/client/pkg/v3 v3.5.4 // indirect
-	go.etcd.io/etcd/client/v2 v2.305.4 // indirect
-	go.etcd.io/etcd/client/v3 v3.5.4 // indirect
-	go.opencensus.io v0.23.0 // indirect
-	go.uber.org/atomic v1.7.0 // indirect
-	go.uber.org/multierr v1.6.0 // indirect
-	go.uber.org/zap v1.17.0 // indirect
-	golang.org/x/crypto v0.0.0-20220411220226-7b82a4e95df4 // indirect
-	golang.org/x/net v0.0.0-20220520000938-2e3eb7b945c2 // indirect
-	golang.org/x/oauth2 v0.0.0-20220411215720-9780585627b5 // indirect
-	golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a // indirect
-	golang.org/x/text v0.3.7 // indirect
-	golang.org/x/xerrors v0.0.0-20220517211312-f3a8303e98df // indirect
-	google.golang.org/api v0.81.0 // indirect
+	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
+	github.com/sourcegraph/conc v0.3.0 // indirect
+	go.etcd.io/etcd/api/v3 v3.5.9 // indirect
+	go.etcd.io/etcd/client/pkg/v3 v3.5.9 // indirect
+	go.etcd.io/etcd/client/v2 v2.305.9 // indirect
+	go.etcd.io/etcd/client/v3 v3.5.9 // indirect
+	go.opencensus.io v0.24.0 // indirect
+	go.uber.org/atomic v1.9.0 // indirect
+	go.uber.org/multierr v1.9.0 // indirect
+	go.uber.org/zap v1.21.0 // indirect
+	golang.org/x/crypto v0.13.0 // indirect
+	golang.org/x/exp v0.0.0-20230905200255-921286631fa9 // indirect
+	golang.org/x/net v0.15.0 // indirect
+	golang.org/x/oauth2 v0.12.0 // indirect
+	golang.org/x/sync v0.3.0 // indirect
+	golang.org/x/sys v0.12.0 // indirect
+	golang.org/x/text v0.13.0 // indirect
+	golang.org/x/time v0.3.0 // indirect
+	golang.org/x/xerrors v0.0.0-20220907171357-04be3eba64a2 // indirect
+	google.golang.org/api v0.143.0 // indirect
 	google.golang.org/appengine v1.6.7 // indirect
-	google.golang.org/genproto v0.0.0-20220519153652-3a47de7e79bd // indirect
-	google.golang.org/grpc v1.46.2 // indirect
-	google.golang.org/protobuf v1.28.0 // indirect
+	google.golang.org/genproto v0.0.0-20230913181813-007df8e322eb // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20230913181813-007df8e322eb // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20230920204549-e6e6cdab5c13 // indirect
+	google.golang.org/grpc v1.58.2 // indirect
+	google.golang.org/protobuf v1.31.0 // indirect
 )
@@ -17,35 +17,24 @@ cloud.google.com/go v0.65.0/go.mod h1:O5N8zS7uWy9vkA9vayVHs65eM1ubvY4h553ofrNHOb
 cloud.google.com/go v0.72.0/go.mod h1:M+5Vjvlc2wnp6tjzE102Dw08nGShTscUx2nZMufOKPI=
 cloud.google.com/go v0.74.0/go.mod h1:VV1xSbzvo+9QJOxLDaJfTjx5e+MePCpCWwvftOeQmWk=
 cloud.google.com/go v0.75.0/go.mod h1:VGuuCn7PG0dwsd5XPVm2Mm3wlh3EL55/79EKB6hlPTY=
-cloud.google.com/go v0.78.0/go.mod h1:QjdrLG0uq+YwhjoVOLsS1t7TW8fs36kLs4XO5R5ECHg=
-cloud.google.com/go v0.79.0/go.mod h1:3bzgcEeQlzbuEAYu4mrWhKqWjmpprinYgKJLgKHnbb8=
-cloud.google.com/go v0.81.0/go.mod h1:mk/AM35KwGk/Nm2YSeZbxXdrNK3KZOYHmLkOqC2V6E0=
-cloud.google.com/go v0.83.0/go.mod h1:Z7MJUsANfY0pYPdw0lbnivPx4/vhy/e2FEkSkF7vAVY=
-cloud.google.com/go v0.84.0/go.mod h1:RazrYuxIK6Kb7YrzzhPoLmCVzl7Sup4NrbKPg8KHSUM=
-cloud.google.com/go v0.87.0/go.mod h1:TpDYlFy7vuLzZMMZ+B6iRiELaY7z/gJPaqbMx6mlWcY=
-cloud.google.com/go v0.90.0/go.mod h1:kRX0mNRHe0e2rC6oNakvwQqzyDmg57xJ+SZU1eT2aDQ=
-cloud.google.com/go v0.93.3/go.mod h1:8utlLll2EF5XMAV15woO4lSbWQlk8rer9aLOfLh7+YI=
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@@ -185,15 +154,12 @@ github.com/google/go-cmp v0.5.2/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
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@@ -204,54 +170,45 @@ github.com/google/pprof v0.0.0-20200708004538-1a94d8640e99/go.mod h1:ZgVRPoUq/hf
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 golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
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@@ -438,9 +394,9 @@ golang.org/x/crypto v0.0.0-20190923035154-9ee001bba392/go.mod h1:/lpIB1dKB+9EgE3
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20210421170649-83a5a9bb288b/go.mod h1:T9bdIzuCu7OtxOm1hfPfRQxPLYneinmdGuTeoZ9dtd4=
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@@ -451,6 +407,8 @@ golang.org/x/exp v0.0.0-20191227195350-da58074b4299/go.mod h1:2RIsYlXP63K8oxa1u0
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@@ -464,7 +422,6 @@ golang.org/x/lint v0.0.0-20191125180803-fdd1cda4f05f/go.mod h1:5qLYkcX4OjUUV8bRu
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@@ -510,20 +467,12 @@ golang.org/x/net v0.0.0-20201031054903-ff519b6c9102/go.mod h1:sp8m0HH+o8qH0wwXwY
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-golang.org/x/net v0.0.0-20220520000938-2e3eb7b945c2 h1:NWy5+hlRbC7HK+PmcXVUmW1IMyFce7to56IUvhUFm7Y=
-golang.org/x/net v0.0.0-20220520000938-2e3eb7b945c2/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
+golang.org/x/net v0.15.0 h1:ugBLEUaxABaB5AJqW9enI0ACdci2RUd4eP51NTBvuJ8=
+golang.org/x/net v0.15.0/go.mod h1:idbUs1IY1+zTqbi8yxTbhexhEEk5ur9LInksu6HrEpk=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
@@ -533,18 +482,8 @@ golang.org/x/oauth2 v0.0.0-20200902213428-5d25da1a8d43/go.mod h1:KelEdhl1UZF7XfJ
 golang.org/x/oauth2 v0.0.0-20201109201403-9fd604954f58/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
 golang.org/x/oauth2 v0.0.0-20201208152858-08078c50e5b5/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
 golang.org/x/oauth2 v0.0.0-20210218202405-ba52d332ba99/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
-golang.org/x/oauth2 v0.0.0-20210220000619-9bb904979d93/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
-golang.org/x/oauth2 v0.0.0-20210313182246-cd4f82c27b84/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
-golang.org/x/oauth2 v0.0.0-20210514164344-f6687ab2804c/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
-golang.org/x/oauth2 v0.0.0-20210628180205-a41e5a781914/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
-golang.org/x/oauth2 v0.0.0-20210805134026-6f1e6394065a/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
-golang.org/x/oauth2 v0.0.0-20210819190943-2bc19b11175f/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
-golang.org/x/oauth2 v0.0.0-20211005180243-6b3c2da341f1/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
-golang.org/x/oauth2 v0.0.0-20211104180415-d3ed0bb246c8/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
-golang.org/x/oauth2 v0.0.0-20220223155221-ee480838109b/go.mod h1:DAh4E804XQdzx2j+YRIaUnCqCV2RuMz24cGBJ5QYIrc=
-golang.org/x/oauth2 v0.0.0-20220309155454-6242fa91716a/go.mod h1:DAh4E804XQdzx2j+YRIaUnCqCV2RuMz24cGBJ5QYIrc=
-golang.org/x/oauth2 v0.0.0-20220411215720-9780585627b5 h1:OSnWWcOd/CtWQC2cYSBgbTSJv3ciqd8r54ySIW2y3RE=
-golang.org/x/oauth2 v0.0.0-20220411215720-9780585627b5/go.mod h1:DAh4E804XQdzx2j+YRIaUnCqCV2RuMz24cGBJ5QYIrc=
+golang.org/x/oauth2 v0.12.0 h1:smVPGxink+n1ZI5pkQa8y6fZT0RW0MgCO5bFpepy4B4=
+golang.org/x/oauth2 v0.12.0/go.mod h1:A74bZ3aGXgCY0qaIC9Ahg6Lglin4AMAco8cIv9baba4=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -556,11 +495,13 @@ golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20201207232520-09787c993a3a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20220513210516-0976fa681c29/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.3.0 h1:ftCYgMx6zT/asHUrPw8BLLscYtGznsLAnjq5RH9P66E=
+golang.org/x/sync v0.3.0/go.mod h1:FU7BRWz2tNW+3quACPkgCx/L+uEAv1htQ0V83Z9Rj+Y=
 golang.org/x/sys v0.0.0-20180823144017-11551d06cbcc/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190130150945-aca44879d564/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190312061237-fead79001313/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -574,15 +515,12 @@ golang.org/x/sys v0.0.0-20190726091711-fc99dfbffb4e/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20190922100055-0a153f010e69/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190924154521-2837fb4f24fe/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191001151750-bb3f8db39f24/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20191008105621-543471e840be/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191204072324-ce4227a45e2e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191228213918-04cbcbbfeed8/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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 golang.org/x/sys v0.0.0-20200113162924-86b910548bc1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200122134326-e047566fdf82/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200124204421-9fbb57f87de9/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200202164722-d101bd2416d5/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200212091648-12a6c2dcc1e4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -593,8 +531,6 @@ golang.org/x/sys v0.0.0-20200501052902-10377860bb8e/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20200511232937-7e40ca221e25/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200515095857-1151b9dac4a9/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200523222454-059865788121/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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 golang.org/x/sys v0.0.0-20200803210538-64077c9b5642/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200905004654-be1d3432aa8f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -602,55 +538,37 @@ golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20201201145000-ef89a241ccb3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210104204734-6f8348627aad/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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-golang.org/x/text v0.3.5/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
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@@ -701,18 +619,13 @@ golang.org/x/tools v0.0.0-20210105154028-b0ab187a4818/go.mod h1:emZCQorbCU4vsT4f
 golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
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-golang.org/x/tools v0.1.4/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
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@@ -732,27 +645,8 @@ google.golang.org/api v0.30.0/go.mod h1:QGmEvQ87FHZNiUVJkT14jQNYJ4ZJjdRF23ZXz513
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@@ -784,7 +678,6 @@ google.golang.org/genproto v0.0.0-20200312145019-da6875a35672/go.mod h1:55QSHmfG
 google.golang.org/genproto v0.0.0-20200331122359-1ee6d9798940/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
 google.golang.org/genproto v0.0.0-20200430143042-b979b6f78d84/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
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@@ -797,49 +690,13 @@ google.golang.org/genproto v0.0.0-20201201144952-b05cb90ed32e/go.mod h1:FWY/as6D
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-google.golang.org/genproto v0.0.0-20220519153652-3a47de7e79bd h1:e0TwkXOdbnH/1x5rc5MZ/VYyiZ4v+RdVfrGMqEwT68I=
-google.golang.org/genproto v0.0.0-20220519153652-3a47de7e79bd/go.mod h1:RAyBrSAP7Fh3Nc84ghnVLDPuV51xc9agzmm4Ph6i0Q4=
+google.golang.org/genproto v0.0.0-20230913181813-007df8e322eb h1:XFBgcDwm7irdHTbz4Zk2h7Mh+eis4nfJEFQFYzJzuIA=
+google.golang.org/genproto v0.0.0-20230913181813-007df8e322eb/go.mod h1:yZTlhN0tQnXo3h00fuXNCxJdLdIdnVFVBaRJ5LWBbw4=
+google.golang.org/genproto/googleapis/api v0.0.0-20230913181813-007df8e322eb h1:lK0oleSc7IQsUxO3U5TjL9DWlsxpEBemh+zpB7IqhWI=
+google.golang.org/genproto/googleapis/api v0.0.0-20230913181813-007df8e322eb/go.mod h1:KjSP20unUpOx5kyQUFa7k4OJg0qeJ7DEZflGDu2p6Bk=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20230920204549-e6e6cdab5c13 h1:N3bU/SQDCDyD6R528GJ/PwW9KjYcJA3dgyH+MovAkIM=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20230920204549-e6e6cdab5c13/go.mod h1:KSqppvjFjtoCI+KGd4PELB0qLNxdJHRGqRI09mB6pQA=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
 google.golang.org/grpc v1.21.1/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
@@ -853,25 +710,11 @@ google.golang.org/grpc v1.29.1/go.mod h1:itym6AZVZYACWQqET3MqgPpjcuV5QH3BxFS3Iji
 google.golang.org/grpc v1.30.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
 google.golang.org/grpc v1.31.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
 google.golang.org/grpc v1.31.1/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
-google.golang.org/grpc v1.33.1/go.mod h1:fr5YgcSWrqhRRxogOsw7RzIpsmvOZ6IcH4kBYTpR3n0=
 google.golang.org/grpc v1.33.2/go.mod h1:JMHMWHQWaTccqQQlmk3MJZS+GWXOdAesneDmEnv2fbc=
 google.golang.org/grpc v1.34.0/go.mod h1:WotjhfgOW/POjDeRt8vscBtXq+2VjORFy659qA51WJ8=
 google.golang.org/grpc v1.35.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
-google.golang.org/grpc v1.36.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
-google.golang.org/grpc v1.36.1/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
-google.golang.org/grpc v1.37.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
-google.golang.org/grpc v1.37.1/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
-google.golang.org/grpc v1.38.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
-google.golang.org/grpc v1.39.0/go.mod h1:PImNr+rS9TWYb2O4/emRugxiyHZ5JyHW5F+RPnDzfrE=
-google.golang.org/grpc v1.39.1/go.mod h1:PImNr+rS9TWYb2O4/emRugxiyHZ5JyHW5F+RPnDzfrE=
-google.golang.org/grpc v1.40.0/go.mod h1:ogyxbiOoUXAkP+4+xa6PZSE9DZgIHtSpzjDTB9KAK34=
-google.golang.org/grpc v1.40.1/go.mod h1:ogyxbiOoUXAkP+4+xa6PZSE9DZgIHtSpzjDTB9KAK34=
-google.golang.org/grpc v1.44.0/go.mod h1:k+4IHHFw41K8+bbowsex27ge2rCb65oeWqe4jJ590SU=
-google.golang.org/grpc v1.45.0/go.mod h1:lN7owxKUQEqMfSyQikvvk5tf/6zMPsrK+ONuO11+0rQ=
-google.golang.org/grpc v1.46.0/go.mod h1:vN9eftEi1UMyUsIF80+uQXhHjbXYbm0uXoFCACuMGWk=
-google.golang.org/grpc v1.46.2 h1:u+MLGgVf7vRdjEYZ8wDFhAVNmhkbJ5hmrA1LMWK1CAQ=
-google.golang.org/grpc v1.46.2/go.mod h1:vN9eftEi1UMyUsIF80+uQXhHjbXYbm0uXoFCACuMGWk=
-google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.1.0/go.mod h1:6Kw0yEErY5E/yWrBtf03jp27GLLJujG4z/JK95pnjjw=
+google.golang.org/grpc v1.58.2 h1:SXUpjxeVF3FKrTYQI4f4KvbGD5u2xccdYdurwowix5I=
+google.golang.org/grpc v1.58.2/go.mod h1:tgX3ZQDlNJGU96V6yHh1T/JeoBQ2TXdr43YbYSsCJk0=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
@@ -884,9 +727,8 @@ google.golang.org/protobuf v1.24.0/go.mod h1:r/3tXBNzIEhYS9I1OUVjXDlt8tc493IdKGj
 google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
-google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
-google.golang.org/protobuf v1.28.0 h1:w43yiav+6bVFTBQFZX0r7ipe9JQ1QsbMgHwbBziscLw=
-google.golang.org/protobuf v1.28.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
+google.golang.org/protobuf v1.31.0 h1:g0LDEJHgrBl9N9r17Ru3sqWhkIx2NB67okBHPwC7hs8=
+google.golang.org/protobuf v1.31.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
@@ -897,13 +739,10 @@ gopkg.in/ini.v1 v1.67.0 h1:Dgnx+6+nfE+IfzjUEISNeydPJh9AXNNsWbGP9KzCsOA=
 gopkg.in/ini.v1 v1.67.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
-gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
@@ -918,4 +757,3 @@ honnef.co/go/tools v0.0.1-2020.1.4/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9
 rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
 rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
 rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
-sigs.k8s.io/yaml v1.2.0/go.mod h1:yfXDCHCao9+ENCvLSE62v9VSji2MKu5jeNfTrofGhJc=
@@ -5,9 +5,9 @@ import (
 )

 // Decoder decodes the contents of b into v.
-// It's primarily used for decoding contents of a file into a map[string]interface{}.
+// It's primarily used for decoding contents of a file into a map[string]any.
 type Decoder interface {
-	Decode(b []byte, v map[string]interface{}) error
+	Decode(b []byte, v map[string]any) error
 }

 const (
@@ -48,7 +48,7 @@ func (e *DecoderRegistry) RegisterDecoder(format string, enc Decoder) error {
 }

 // Decode calls the underlying Decoder based on the format.
-func (e *DecoderRegistry) Decode(format string, b []byte, v map[string]interface{}) error {
+func (e *DecoderRegistry) Decode(format string, b []byte, v map[string]any) error {
 	e.mu.RLock()
 	decoder, ok := e.decoders[format]
 	e.mu.RUnlock()
@@ -6,10 +6,10 @@ import (
 )

 type decoder struct {
-	v map[string]interface{}
+	v map[string]any
 }

-func (d decoder) Decode(_ []byte, v map[string]interface{}) error {
+func (d decoder) Decode(_ []byte, v map[string]any) error {
 	for key, value := range d.v {
 		v[key] = value
 	}
@@ -46,7 +46,7 @@ func TestDecoderRegistry_Decode(t *testing.T) {
 	t.Run("OK", func(t *testing.T) {
 		registry := NewDecoderRegistry()
 		decoder := decoder{
-			v: map[string]interface{}{
+			v: map[string]any{
 				"key": "value",
 			},
 		}
@@ -56,7 +56,7 @@ func TestDecoderRegistry_Decode(t *testing.T) {
 			t.Fatal(err)
 		}

-		v := map[string]interface{}{}
+		v := map[string]any{}

 		err = registry.Decode("myformat", []byte("key: value"), v)
 		if err != nil {
@@ -71,7 +71,7 @@ func TestDecoderRegistry_Decode(t *testing.T) {
 	t.Run("DecoderNotFound", func(t *testing.T) {
 		registry := NewDecoderRegistry()

-		v := map[string]interface{}{}
+		v := map[string]any{}

 		err := registry.Decode("myformat", nil, v)
 		if err != ErrDecoderNotFound {
@@ -15,8 +15,8 @@ const keyDelimiter = "_"
 // (commonly called as dotenv format).
 type Codec struct{}

-func (Codec) Encode(v map[string]interface{}) ([]byte, error) {
-	flattened := map[string]interface{}{}
+func (Codec) Encode(v map[string]any) ([]byte, error) {
+	flattened := map[string]any{}

 	flattened = flattenAndMergeMap(flattened, v, "", keyDelimiter)

@@ -40,7 +40,7 @@ func (Codec) Encode(v map[string]interface{}) ([]byte, error) {
 	return buf.Bytes(), nil
 }

-func (Codec) Decode(b []byte, v map[string]interface{}) error {
+func (Codec) Decode(b []byte, v map[string]any) error {
 	var buf bytes.Buffer

 	_, err := buf.Write(b)
@@ -15,7 +15,7 @@ const encoded = `KEY=value
 `

 // Viper's internal representation
-var data = map[string]interface{}{
+var data = map[string]any{
 	"KEY": "value",
 }

@@ -36,7 +36,7 @@ func TestCodec_Decode(t *testing.T) {
 	t.Run("OK", func(t *testing.T) {
 		codec := Codec{}

-		v := map[string]interface{}{}
+		v := map[string]any{}

 		err := codec.Decode([]byte(original), v)
 		if err != nil {
@@ -51,7 +51,7 @@ func TestCodec_Decode(t *testing.T) {
 	t.Run("InvalidData", func(t *testing.T) {
 		codec := Codec{}

-		v := map[string]interface{}{}
+		v := map[string]any{}

 		err := codec.Decode([]byte(`invalid data`), v)
 		if err == nil {
@@ -7,27 +7,27 @@ import (
 )

 // flattenAndMergeMap recursively flattens the given map into a new map
-// Code is based on the function with the same name in tha main package.
+// Code is based on the function with the same name in the main package.
 // TODO: move it to a common place
-func flattenAndMergeMap(shadow map[string]interface{}, m map[string]interface{}, prefix string, delimiter string) map[string]interface{} {
+func flattenAndMergeMap(shadow map[string]any, m map[string]any, prefix string, delimiter string) map[string]any {
 	if shadow != nil && prefix != "" && shadow[prefix] != nil {
 		// prefix is shadowed => nothing more to flatten
 		return shadow
 	}
 	if shadow == nil {
-		shadow = make(map[string]interface{})
+		shadow = make(map[string]any)
 	}

-	var m2 map[string]interface{}
+	var m2 map[string]any
 	if prefix != "" {
 		prefix += delimiter
 	}
 	for k, val := range m {
 		fullKey := prefix + k
-		switch val.(type) {
-		case map[string]interface{}:
-			m2 = val.(map[string]interface{})
-		case map[interface{}]interface{}:
+		switch val := val.(type) {
+		case map[string]any:
+			m2 = val
+		case map[any]any:
 			m2 = cast.ToStringMap(val)
 		default:
 			// immediate value
@@ -5,9 +5,9 @@ import (
 )

 // Encoder encodes the contents of v into a byte representation.
-// It's primarily used for encoding a map[string]interface{} into a file format.
+// It's primarily used for encoding a map[string]any into a file format.
 type Encoder interface {
-	Encode(v map[string]interface{}) ([]byte, error)
+	Encode(v map[string]any) ([]byte, error)
 }

 const (
@@ -47,7 +47,7 @@ func (e *EncoderRegistry) RegisterEncoder(format string, enc Encoder) error {
 	return nil
 }

-func (e *EncoderRegistry) Encode(format string, v map[string]interface{}) ([]byte, error) {
+func (e *EncoderRegistry) Encode(format string, v map[string]any) ([]byte, error) {
 	e.mu.RLock()
 	encoder, ok := e.encoders[format]
 	e.mu.RUnlock()
@@ -8,7 +8,7 @@ type encoder struct {
 	b []byte
 }

-func (e encoder) Encode(_ map[string]interface{}) ([]byte, error) {
+func (e encoder) Encode(_ map[string]any) ([]byte, error) {
 	return e.b, nil
 }

@@ -49,7 +49,7 @@ func TestEncoderRegistry_Decode(t *testing.T) {
 			t.Fatal(err)
 		}

-		b, err := registry.Encode("myformat", map[string]interface{}{"key": "value"})
+		b, err := registry.Encode("myformat", map[string]any{"key": "value"})
 		if err != nil {
 			t.Fatal(err)
 		}
@@ -62,7 +62,7 @@ func TestEncoderRegistry_Decode(t *testing.T) {
 	t.Run("EncoderNotFound", func(t *testing.T) {
 		registry := NewEncoderRegistry()

-		_, err := registry.Encode("myformat", map[string]interface{}{"key": "value"})
+		_, err := registry.Encode("myformat", map[string]any{"key": "value"})
 		if err != ErrEncoderNotFound {
 			t.Fatalf("expected ErrEncoderNotFound, got: %v", err)
 		}
@@ -12,7 +12,7 @@ import (
 // TODO: add printer config to the codec?
 type Codec struct{}

-func (Codec) Encode(v map[string]interface{}) ([]byte, error) {
+func (Codec) Encode(v map[string]any) ([]byte, error) {
 	b, err := json.Marshal(v)
 	if err != nil {
 		return nil, err
@@ -35,6 +35,6 @@ func (Codec) Encode(v map[string]interface{}) ([]byte, error) {
 	return buf.Bytes(), nil
 }

-func (Codec) Decode(b []byte, v map[string]interface{}) error {
+func (Codec) Decode(b []byte, v map[string]any) error {
 	return hcl.Unmarshal(b, &v)
 }
@@ -45,24 +45,24 @@ const encoded = `"key" = "value"
 //
 // in case of HCL it's slightly different from Viper's internal representation
 // (eg. map is decoded into a list of maps)
-var decoded = map[string]interface{}{
+var decoded = map[string]any{
 	"key": "value",
-	"list": []interface{}{
+	"list": []any{
 		"item1",
 		"item2",
 		"item3",
 	},
-	"map": []map[string]interface{}{
+	"map": []map[string]any{
 		{
 			"key": "value",
 		},
 	},
-	"nested_map": []map[string]interface{}{
+	"nested_map": []map[string]any{
 		{
-			"map": []map[string]interface{}{
+			"map": []map[string]any{
 				{
 					"key": "value",
-					"list": []interface{}{
+					"list": []any{
 						"item1",
 						"item2",
 						"item3",
@@ -74,20 +74,20 @@ var decoded = map[string]interface{}{
 }

 // Viper's internal representation
-var data = map[string]interface{}{
+var data = map[string]any{
 	"key": "value",
-	"list": []interface{}{
+	"list": []any{
 		"item1",
 		"item2",
 		"item3",
 	},
-	"map": map[string]interface{}{
+	"map": map[string]any{
 		"key": "value",
 	},
-	"nested_map": map[string]interface{}{
-		"map": map[string]interface{}{
+	"nested_map": map[string]any{
+		"map": map[string]any{
 			"key": "value",
-			"list": []interface{}{
+			"list": []any{
 				"item1",
 				"item2",
 				"item3",
@@ -113,7 +113,7 @@ func TestCodec_Decode(t *testing.T) {
 	t.Run("OK", func(t *testing.T) {
 		codec := Codec{}

-		v := map[string]interface{}{}
+		v := map[string]any{}

 		err := codec.Decode([]byte(original), v)
 		if err != nil {
@@ -128,7 +128,7 @@ func TestCodec_Decode(t *testing.T) {
 	t.Run("InvalidData", func(t *testing.T) {
 		codec := Codec{}

-		v := map[string]interface{}{}
+		v := map[string]any{}

 		err := codec.Decode([]byte(`invalid data`), v)
 		if err == nil {
@@ -19,11 +19,11 @@ type Codec struct {
 	LoadOptions  LoadOptions
 }

-func (c Codec) Encode(v map[string]interface{}) ([]byte, error) {
+func (c Codec) Encode(v map[string]any) ([]byte, error) {
 	cfg := ini.Empty()
 	ini.PrettyFormat = false

-	flattened := map[string]interface{}{}
+	flattened := map[string]any{}

 	flattened = flattenAndMergeMap(flattened, v, "", c.keyDelimiter())

@@ -62,7 +62,7 @@ func (c Codec) Encode(v map[string]interface{}) ([]byte, error) {
 	return buf.Bytes(), nil
 }

-func (c Codec) Decode(b []byte, v map[string]interface{}) error {
+func (c Codec) Decode(b []byte, v map[string]any) error {
 	cfg := ini.Empty(c.LoadOptions)

 	err := cfg.Append(b)
@@ -26,19 +26,19 @@ key=value
 //
 // in case of INI it's slightly different from Viper's internal representation
 // (eg. top level keys land in a section called default)
-var decoded = map[string]interface{}{
-	"DEFAULT": map[string]interface{}{
+var decoded = map[string]any{
+	"DEFAULT": map[string]any{
 		"key": "value",
 	},
-	"map": map[string]interface{}{
+	"map": map[string]any{
 		"key": "value",
 	},
 }

 // Viper's internal representation
-var data = map[string]interface{}{
+var data = map[string]any{
 	"key": "value",
-	"map": map[string]interface{}{
+	"map": map[string]any{
 		"key": "value",
 	},
 }
@@ -60,11 +60,11 @@ func TestCodec_Encode(t *testing.T) {
 	t.Run("Default", func(t *testing.T) {
 		codec := Codec{}

-		data := map[string]interface{}{
-			"default": map[string]interface{}{
+		data := map[string]any{
+			"default": map[string]any{
 				"key": "value",
 			},
-			"map": map[string]interface{}{
+			"map": map[string]any{
 				"key": "value",
 			},
 		}
@@ -84,7 +84,7 @@ func TestCodec_Decode(t *testing.T) {
 	t.Run("OK", func(t *testing.T) {
 		codec := Codec{}

-		v := map[string]interface{}{}
+		v := map[string]any{}

 		err := codec.Decode([]byte(original), v)
 		if err != nil {
@@ -99,7 +99,7 @@ func TestCodec_Decode(t *testing.T) {
 	t.Run("InvalidData", func(t *testing.T) {
 		codec := Codec{}

-		v := map[string]interface{}{}
+		v := map[string]any{}

 		err := codec.Decode([]byte(`invalid data`), v)
 		if err == nil {
@@ -15,22 +15,22 @@ import (
 // In case intermediate keys do not exist, or map to a non-map value,
 // a new map is created and inserted, and the search continues from there:
 // the initial map "m" may be modified!
-func deepSearch(m map[string]interface{}, path []string) map[string]interface{} {
+func deepSearch(m map[string]any, path []string) map[string]any {
 	for _, k := range path {
 		m2, ok := m[k]
 		if !ok {
 			// intermediate key does not exist
 			// => create it and continue from there
-			m3 := make(map[string]interface{})
+			m3 := make(map[string]any)
 			m[k] = m3
 			m = m3
 			continue
 		}
-		m3, ok := m2.(map[string]interface{})
+		m3, ok := m2.(map[string]any)
 		if !ok {
 			// intermediate key is a value
 			// => replace with a new map
-			m3 = make(map[string]interface{})
+			m3 = make(map[string]any)
 			m[k] = m3
 		}
 		// continue search from here
@@ -40,27 +40,27 @@ func deepSearch(m map[string]interface{}, path []string) map[string]interface{}
 }

 // flattenAndMergeMap recursively flattens the given map into a new map
-// Code is based on the function with the same name in tha main package.
+// Code is based on the function with the same name in the main package.
 // TODO: move it to a common place
-func flattenAndMergeMap(shadow map[string]interface{}, m map[string]interface{}, prefix string, delimiter string) map[string]interface{} {
+func flattenAndMergeMap(shadow map[string]any, m map[string]any, prefix string, delimiter string) map[string]any {
 	if shadow != nil && prefix != "" && shadow[prefix] != nil {
 		// prefix is shadowed => nothing more to flatten
 		return shadow
 	}
 	if shadow == nil {
-		shadow = make(map[string]interface{})
+		shadow = make(map[string]any)
 	}

-	var m2 map[string]interface{}
+	var m2 map[string]any
 	if prefix != "" {
 		prefix += delimiter
 	}
 	for k, val := range m {
 		fullKey := prefix + k
-		switch val.(type) {
-		case map[string]interface{}:
-			m2 = val.(map[string]interface{})
-		case map[interface{}]interface{}:
+		switch val := val.(type) {
+		case map[string]any:
+			m2 = val
+		case map[any]any:
 			m2 = cast.ToStringMap(val)
 		default:
 			// immediate value
@@ -20,12 +20,12 @@ type Codec struct {
 	Properties *properties.Properties
 }

-func (c *Codec) Encode(v map[string]interface{}) ([]byte, error) {
+func (c *Codec) Encode(v map[string]any) ([]byte, error) {
 	if c.Properties == nil {
 		c.Properties = properties.NewProperties()
 	}

-	flattened := map[string]interface{}{}
+	flattened := map[string]any{}

 	flattened = flattenAndMergeMap(flattened, v, "", c.keyDelimiter())

@@ -54,7 +54,7 @@ func (c *Codec) Encode(v map[string]interface{}) ([]byte, error) {
 	return buf.Bytes(), nil
 }

-func (c *Codec) Decode(b []byte, v map[string]interface{}) error {
+func (c *Codec) Decode(b []byte, v map[string]any) error {
 	var err error
 	c.Properties, err = properties.Load(b, properties.UTF8)
 	if err != nil {
@@ -17,9 +17,9 @@ map.key = value
 `

 // Viper's internal representation
-var data = map[string]interface{}{
+var data = map[string]any{
 	"key": "value",
-	"map": map[string]interface{}{
+	"map": map[string]any{
 		"key": "value",
 	},
 }
@@ -41,7 +41,7 @@ func TestCodec_Decode(t *testing.T) {
 	t.Run("OK", func(t *testing.T) {
 		codec := Codec{}

-		v := map[string]interface{}{}
+		v := map[string]any{}

 		err := codec.Decode([]byte(original), v)
 		if err != nil {
@@ -58,7 +58,7 @@ func TestCodec_Decode(t *testing.T) {

 		codec := Codec{}

-		v := map[string]interface{}{}
+		v := map[string]any{}

 		codec.Decode([]byte(``), v)

@@ -71,7 +71,7 @@ func TestCodec_Decode(t *testing.T) {
 func TestCodec_DecodeEncode(t *testing.T) {
 	codec := Codec{}

-	v := map[string]interface{}{}
+	v := map[string]any{}

 	err := codec.Decode([]byte(original), v)
 	if err != nil {
@@ -15,22 +15,22 @@ import (
 // In case intermediate keys do not exist, or map to a non-map value,
 // a new map is created and inserted, and the search continues from there:
 // the initial map "m" may be modified!
-func deepSearch(m map[string]interface{}, path []string) map[string]interface{} {
+func deepSearch(m map[string]any, path []string) map[string]any {
 	for _, k := range path {
 		m2, ok := m[k]
 		if !ok {
 			// intermediate key does not exist
 			// => create it and continue from there
-			m3 := make(map[string]interface{})
+			m3 := make(map[string]any)
 			m[k] = m3
 			m = m3
 			continue
 		}
-		m3, ok := m2.(map[string]interface{})
+		m3, ok := m2.(map[string]any)
 		if !ok {
 			// intermediate key is a value
 			// => replace with a new map
-			m3 = make(map[string]interface{})
+			m3 = make(map[string]any)
 			m[k] = m3
 		}
 		// continue search from here
@@ -40,27 +40,27 @@ func deepSearch(m map[string]interface{}, path []string) map[string]interface{}
 }

 // flattenAndMergeMap recursively flattens the given map into a new map
-// Code is based on the function with the same name in tha main package.
+// Code is based on the function with the same name in the main package.
 // TODO: move it to a common place
-func flattenAndMergeMap(shadow map[string]interface{}, m map[string]interface{}, prefix string, delimiter string) map[string]interface{} {
+func flattenAndMergeMap(shadow map[string]any, m map[string]any, prefix string, delimiter string) map[string]any {
 	if shadow != nil && prefix != "" && shadow[prefix] != nil {
 		// prefix is shadowed => nothing more to flatten
 		return shadow
 	}
 	if shadow == nil {
-		shadow = make(map[string]interface{})
+		shadow = make(map[string]any)
 	}

-	var m2 map[string]interface{}
+	var m2 map[string]any
 	if prefix != "" {
 		prefix += delimiter
 	}
 	for k, val := range m {
 		fullKey := prefix + k
-		switch val.(type) {
-		case map[string]interface{}:
-			m2 = val.(map[string]interface{})
-		case map[interface{}]interface{}:
+		switch val := val.(type) {
+		case map[string]any:
+			m2 = val
+		case map[any]any:
 			m2 = cast.ToStringMap(val)
 		default:
 			// immediate value
@@ -7,11 +7,11 @@ import (
 // Codec implements the encoding.Encoder and encoding.Decoder interfaces for JSON encoding.
 type Codec struct{}

-func (Codec) Encode(v map[string]interface{}) ([]byte, error) {
+func (Codec) Encode(v map[string]any) ([]byte, error) {
 	// TODO: expose prefix and indent in the Codec as setting?
 	return json.MarshalIndent(v, "", "  ")
 }

-func (Codec) Decode(b []byte, v map[string]interface{}) error {
+func (Codec) Decode(b []byte, v map[string]any) error {
 	return json.Unmarshal(b, &v)
 }
@@ -29,20 +29,20 @@ const encoded = `{
 }`

 // Viper's internal representation
-var data = map[string]interface{}{
+var data = map[string]any{
 	"key": "value",
-	"list": []interface{}{
+	"list": []any{
 		"item1",
 		"item2",
 		"item3",
 	},
-	"map": map[string]interface{}{
+	"map": map[string]any{
 		"key": "value",
 	},
-	"nested_map": map[string]interface{}{
-		"map": map[string]interface{}{
+	"nested_map": map[string]any{
+		"map": map[string]any{
 			"key": "value",
-			"list": []interface{}{
+			"list": []any{
 				"item1",
 				"item2",
 				"item3",
@@ -68,7 +68,7 @@ func TestCodec_Decode(t *testing.T) {
 	t.Run("OK", func(t *testing.T) {
 		codec := Codec{}

-		v := map[string]interface{}{}
+		v := map[string]any{}

 		err := codec.Decode([]byte(encoded), v)
 		if err != nil {
@@ -83,7 +83,7 @@ func TestCodec_Decode(t *testing.T) {
 	t.Run("InvalidData", func(t *testing.T) {
 		codec := Codec{}

-		v := map[string]interface{}{}
+		v := map[string]any{}

 		err := codec.Decode([]byte(`invalid data`), v)
 		if err == nil {
@@ -1,39 +1,16 @@
-//go:build viper_toml1
-// +build viper_toml1
-
 package toml

 import (
-	"github.com/pelletier/go-toml"
+	"github.com/pelletier/go-toml/v2"
 )

 // Codec implements the encoding.Encoder and encoding.Decoder interfaces for TOML encoding.
 type Codec struct{}

-func (Codec) Encode(v map[string]interface{}) ([]byte, error) {
-	t, err := toml.TreeFromMap(v)
-	if err != nil {
-		return nil, err
-	}
-
-	s, err := t.ToTomlString()
-	if err != nil {
-		return nil, err
-	}
-
-	return []byte(s), nil
+func (Codec) Encode(v map[string]any) ([]byte, error) {
+	return toml.Marshal(v)
 }

-func (Codec) Decode(b []byte, v map[string]interface{}) error {
-	tree, err := toml.LoadBytes(b)
-	if err != nil {
-		return err
-	}
-
-	tmap := tree.ToMap()
-	for key, value := range tmap {
-		v[key] = value
-	}
-
-	return nil
+func (Codec) Decode(b []byte, v map[string]any) error {
+	return toml.Unmarshal(b, &v)
 }
@@ -1,19 +0,0 @@
-//go:build !viper_toml1
-// +build !viper_toml1
-
-package toml
-
-import (
-	"github.com/pelletier/go-toml/v2"
-)
-
-// Codec implements the encoding.Encoder and encoding.Decoder interfaces for TOML encoding.
-type Codec struct{}
-
-func (Codec) Encode(v map[string]interface{}) ([]byte, error) {
-	return toml.Marshal(v)
-}
-
-func (Codec) Decode(b []byte, v map[string]interface{}) error {
-	return toml.Unmarshal(b, &v)
-}
@@ -1,108 +0,0 @@
-//go:build !viper_toml1
-// +build !viper_toml1
-
-package toml
-
-import (
-	"reflect"
-	"testing"
-)
-
-// original form of the data
-const original = `# key-value pair
-key = "value"
-list = ["item1", "item2", "item3"]
-
-[map]
-key = "value"
-
-# nested
-# map
-[nested_map]
-[nested_map.map]
-key = "value"
-list = [
-  "item1",
-  "item2",
-  "item3",
-]
-`
-
-// encoded form of the data
-const encoded = `key = 'value'
-list = ['item1', 'item2', 'item3']
-
-[map]
-key = 'value'
-
-[nested_map]
-[nested_map.map]
-key = 'value'
-list = ['item1', 'item2', 'item3']
-`
-
-// Viper's internal representation
-var data = map[string]interface{}{
-	"key": "value",
-	"list": []interface{}{
-		"item1",
-		"item2",
-		"item3",
-	},
-	"map": map[string]interface{}{
-		"key": "value",
-	},
-	"nested_map": map[string]interface{}{
-		"map": map[string]interface{}{
-			"key": "value",
-			"list": []interface{}{
-				"item1",
-				"item2",
-				"item3",
-			},
-		},
-	},
-}
-
-func TestCodec_Encode(t *testing.T) {
-	codec := Codec{}
-
-	b, err := codec.Encode(data)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if encoded != string(b) {
-		t.Fatalf("decoded value does not match the expected one\nactual:   %#v\nexpected: %#v", string(b), encoded)
-	}
-}
-
-func TestCodec_Decode(t *testing.T) {
-	t.Run("OK", func(t *testing.T) {
-		codec := Codec{}
-
-		v := map[string]interface{}{}
-
-		err := codec.Decode([]byte(original), v)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		if !reflect.DeepEqual(data, v) {
-			t.Fatalf("decoded value does not match the expected one\nactual:   %#v\nexpected: %#v", v, data)
-		}
-	})
-
-	t.Run("InvalidData", func(t *testing.T) {
-		codec := Codec{}
-
-		v := map[string]interface{}{}
-
-		err := codec.Decode([]byte(`invalid data`), v)
-		if err == nil {
-			t.Fatal("expected decoding to fail")
-		}
-
-		t.Logf("decoding failed as expected: %s", err)
-	})
-}
@@ -1,6 +1,3 @@
-//go:build viper_toml1
-// +build viper_toml1
-
 package toml

 import (
@@ -29,34 +26,33 @@ list = [
 `

 // encoded form of the data
-const encoded = `key = "value"
-list = ["item1", "item2", "item3"]
+const encoded = `key = 'value'
+list = ['item1', 'item2', 'item3']

 [map]
-  key = "value"
+key = 'value'

 [nested_map]
-
-  [nested_map.map]
-    key = "value"
-    list = ["item1", "item2", "item3"]
+[nested_map.map]
+key = 'value'
+list = ['item1', 'item2', 'item3']
 `

 // Viper's internal representation
-var data = map[string]interface{}{
+var data = map[string]any{
 	"key": "value",
-	"list": []interface{}{
+	"list": []any{
 		"item1",
 		"item2",
 		"item3",
 	},
-	"map": map[string]interface{}{
+	"map": map[string]any{
 		"key": "value",
 	},
-	"nested_map": map[string]interface{}{
-		"map": map[string]interface{}{
+	"nested_map": map[string]any{
+		"map": map[string]any{
 			"key": "value",
-			"list": []interface{}{
+			"list": []any{
 				"item1",
 				"item2",
 				"item3",
@@ -82,7 +78,7 @@ func TestCodec_Decode(t *testing.T) {
 	t.Run("OK", func(t *testing.T) {
 		codec := Codec{}

-		v := map[string]interface{}{}
+		v := map[string]any{}

 		err := codec.Decode([]byte(original), v)
 		if err != nil {
@@ -97,7 +93,7 @@ func TestCodec_Decode(t *testing.T) {
 	t.Run("InvalidData", func(t *testing.T) {
 		codec := Codec{}

-		v := map[string]interface{}{}
+		v := map[string]any{}

 		err := codec.Decode([]byte(`invalid data`), v)
 		if err == nil {
@@ -1,14 +1,14 @@
 package yaml

-// import "gopkg.in/yaml.v2"
+import "gopkg.in/yaml.v3"

 // Codec implements the encoding.Encoder and encoding.Decoder interfaces for YAML encoding.
 type Codec struct{}

-func (Codec) Encode(v map[string]interface{}) ([]byte, error) {
+func (Codec) Encode(v map[string]any) ([]byte, error) {
 	return yaml.Marshal(v)
 }

-func (Codec) Decode(b []byte, v map[string]interface{}) error {
+func (Codec) Decode(b []byte, v map[string]any) error {
 	return yaml.Unmarshal(b, &v)
 }
@@ -5,6 +5,93 @@ import (
 	"testing"
 )

+// original form of the data
+const original = `# key-value pair
+key: value
+list:
+    - item1
+    - item2
+    - item3
+map:
+    key: value
+
+# nested
+# map
+nested_map:
+    map:
+        key: value
+        list:
+            - item1
+            - item2
+            - item3
+`
+
+// encoded form of the data
+const encoded = `key: value
+list:
+    - item1
+    - item2
+    - item3
+map:
+    key: value
+nested_map:
+    map:
+        key: value
+        list:
+            - item1
+            - item2
+            - item3
+`
+
+// decoded form of the data
+//
+// in case of YAML it's slightly different from Viper's internal representation
+// (eg. map is decoded into a map with interface key)
+var decoded = map[string]any{
+	"key": "value",
+	"list": []any{
+		"item1",
+		"item2",
+		"item3",
+	},
+	"map": map[string]any{
+		"key": "value",
+	},
+	"nested_map": map[string]any{
+		"map": map[string]any{
+			"key": "value",
+			"list": []any{
+				"item1",
+				"item2",
+				"item3",
+			},
+		},
+	},
+}
+
+// Viper's internal representation
+var data = map[string]any{
+	"key": "value",
+	"list": []any{
+		"item1",
+		"item2",
+		"item3",
+	},
+	"map": map[string]any{
+		"key": "value",
+	},
+	"nested_map": map[string]any{
+		"map": map[string]any{
+			"key": "value",
+			"list": []any{
+				"item1",
+				"item2",
+				"item3",
+			},
+		},
+	},
+}
+
 func TestCodec_Encode(t *testing.T) {
 	codec := Codec{}

@@ -22,7 +109,7 @@ func TestCodec_Decode(t *testing.T) {
 	t.Run("OK", func(t *testing.T) {
 		codec := Codec{}

-		v := map[string]interface{}{}
+		v := map[string]any{}

 		err := codec.Decode([]byte(original), v)
 		if err != nil {
@@ -37,7 +124,7 @@ func TestCodec_Decode(t *testing.T) {
 	t.Run("InvalidData", func(t *testing.T) {
 		codec := Codec{}

-		v := map[string]interface{}{}
+		v := map[string]any{}

 		err := codec.Decode([]byte(`invalid data`), v)
 		if err == nil {
@@ -1,14 +0,0 @@
-//go:build viper_yaml2
-// +build viper_yaml2
-
-package yaml
-
-import yamlv2 "gopkg.in/yaml.v2"
-
-var yaml = struct {
-	Marshal   func(in interface{}) (out []byte, err error)
-	Unmarshal func(in []byte, out interface{}) (err error)
-}{
-	Marshal:   yamlv2.Marshal,
-	Unmarshal: yamlv2.Unmarshal,
-}
@@ -1,91 +0,0 @@
-//go:build viper_yaml2
-// +build viper_yaml2
-
-package yaml
-
-// original form of the data
-const original = `# key-value pair
-key: value
-list:
- item1
- item2
- item3
-map:
-  key: value
-
-# nested
-# map
-nested_map:
-  map:
-    key: value
-    list:
-    - item1
-    - item2
-    - item3
-`
-
-// encoded form of the data
-const encoded = `key: value
-list:
- item1
- item2
- item3
-map:
-  key: value
-nested_map:
-  map:
-    key: value
-    list:
-    - item1
-    - item2
-    - item3
-`
-
-// decoded form of the data
-//
-// in case of YAML it's slightly different from Viper's internal representation
-// (eg. map is decoded into a map with interface key)
-var decoded = map[string]interface{}{
-	"key": "value",
-	"list": []interface{}{
-		"item1",
-		"item2",
-		"item3",
-	},
-	"map": map[interface{}]interface{}{
-		"key": "value",
-	},
-	"nested_map": map[interface{}]interface{}{
-		"map": map[interface{}]interface{}{
-			"key": "value",
-			"list": []interface{}{
-				"item1",
-				"item2",
-				"item3",
-			},
-		},
-	},
-}
-
-// Viper's internal representation
-var data = map[string]interface{}{
-	"key": "value",
-	"list": []interface{}{
-		"item1",
-		"item2",
-		"item3",
-	},
-	"map": map[string]interface{}{
-		"key": "value",
-	},
-	"nested_map": map[string]interface{}{
-		"map": map[string]interface{}{
-			"key": "value",
-			"list": []interface{}{
-				"item1",
-				"item2",
-				"item3",
-			},
-		},
-	},
-}
@@ -1,14 +0,0 @@
-//go:build !viper_yaml2
-// +build !viper_yaml2
-
-package yaml
-
-import yamlv3 "gopkg.in/yaml.v3"
-
-var yaml = struct {
-	Marshal   func(in interface{}) (out []byte, err error)
-	Unmarshal func(in []byte, out interface{}) (err error)
-}{
-	Marshal:   yamlv3.Marshal,
-	Unmarshal: yamlv3.Unmarshal,
-}
@@ -1,91 +0,0 @@
-//go:build !viper_yaml2
-// +build !viper_yaml2
-
-package yaml
-
-// original form of the data
-const original = `# key-value pair
-key: value
-list:
-    - item1
-    - item2
-    - item3
-map:
-    key: value
-
-# nested
-# map
-nested_map:
-    map:
-        key: value
-        list:
-            - item1
-            - item2
-            - item3
-`
-
-// encoded form of the data
-const encoded = `key: value
-list:
-    - item1
-    - item2
-    - item3
-map:
-    key: value
-nested_map:
-    map:
-        key: value
-        list:
-            - item1
-            - item2
-            - item3
-`
-
-// decoded form of the data
-//
-// in case of YAML it's slightly different from Viper's internal representation
-// (eg. map is decoded into a map with interface key)
-var decoded = map[string]interface{}{
-	"key": "value",
-	"list": []interface{}{
-		"item1",
-		"item2",
-		"item3",
-	},
-	"map": map[string]interface{}{
-		"key": "value",
-	},
-	"nested_map": map[string]interface{}{
-		"map": map[string]interface{}{
-			"key": "value",
-			"list": []interface{}{
-				"item1",
-				"item2",
-				"item3",
-			},
-		},
-	},
-}
-
-// Viper's internal representation
-var data = map[string]interface{}{
-	"key": "value",
-	"list": []interface{}{
-		"item1",
-		"item2",
-		"item3",
-	},
-	"map": map[string]interface{}{
-		"key": "value",
-	},
-	"nested_map": map[string]interface{}{
-		"map": map[string]interface{}{
-			"key": "value",
-			"list": []interface{}{
-				"item1",
-				"item2",
-				"item3",
-			},
-		},
-	},
-}
@@ -1,40 +0,0 @@
-//go:build !go1.17
-// +build !go1.17
-
-package testutil
-
-import (
-	"os"
-	"testing"
-)
-
-// Based on https://github.com/frankban/quicktest/blob/577841610793d24f99e31cc2c0ef3a541fefd7c7/patch.go#L34-L64
-// Licensed under the MIT license
-// Copyright (c) 2017 Canonical Ltd.
-
-// Setenv sets an environment variable to a temporary value for the
-// duration of the test.
-//
-// At the end of the test (see "Deferred execution" in the package docs), the
-// environment variable is returned to its original value.
-func Setenv(t *testing.T, name, val string) {
-	setenv(t, name, val, true)
-}
-
-// setenv sets or unsets an environment variable to a temporary value for the
-// duration of the test
-func setenv(t *testing.T, name, val string, valOK bool) {
-	oldVal, oldOK := os.LookupEnv(name)
-	if valOK {
-		os.Setenv(name, val)
-	} else {
-		os.Unsetenv(name)
-	}
-	t.Cleanup(func() {
-		if oldOK {
-			os.Setenv(name, oldVal)
-		} else {
-			os.Unsetenv(name)
-		}
-	})
-}
@@ -1,18 +0,0 @@
-//go:build go1.17
-// +build go1.17
-
-package testutil
-
-import (
-	"testing"
-)
-
-// Setenv sets an environment variable to a temporary value for the
-// duration of the test.
-//
-// This shim can be removed once support for Go <1.17 is dropped.
-func Setenv(t *testing.T, name, val string) {
-	t.Helper()
-
-	t.Setenv(name, val)
-}
@@ -1,77 +1,68 @@
 package viper

 import (
-	"fmt"
+	"context"

-	jww "github.com/spf13/jwalterweatherman"
+	slog "github.com/sagikazarmark/slog-shim"
 )

 // Logger is a unified interface for various logging use cases and practices, including:
 //   - leveled logging
 //   - structured logging
+//
+// Deprecated: use `log/slog` instead.
 type Logger interface {
 	// Trace logs a Trace event.
 	//
 	// Even more fine-grained information than Debug events.
 	// Loggers not supporting this level should fall back to Debug.
-	Trace(msg string, keyvals ...interface{})
+	Trace(msg string, keyvals ...any)

 	// Debug logs a Debug event.
 	//
 	// A verbose series of information events.
 	// They are useful when debugging the system.
-	Debug(msg string, keyvals ...interface{})
+	Debug(msg string, keyvals ...any)

 	// Info logs an Info event.
 	//
 	// General information about what's happening inside the system.
-	Info(msg string, keyvals ...interface{})
+	Info(msg string, keyvals ...any)

 	// Warn logs a Warn(ing) event.
 	//
 	// Non-critical events that should be looked at.
-	Warn(msg string, keyvals ...interface{})
+	Warn(msg string, keyvals ...any)

 	// Error logs an Error event.
 	//
 	// Critical events that require immediate attention.
 	// Loggers commonly provide Fatal and Panic levels above Error level,
-	// but exiting and panicing is out of scope for a logging library.
-	Error(msg string, keyvals ...interface{})
+	// but exiting and panicking is out of scope for a logging library.
+	Error(msg string, keyvals ...any)
 }

-type jwwLogger struct{}
-
-func (jwwLogger) Trace(msg string, keyvals ...interface{}) {
-	jww.TRACE.Printf(jwwLogMessage(msg, keyvals...))
+// WithLogger sets a custom logger.
+func WithLogger(l *slog.Logger) Option {
+	return optionFunc(func(v *Viper) {
+		v.logger = l
+	})
 }

-func (jwwLogger) Debug(msg string, keyvals ...interface{}) {
-	jww.DEBUG.Printf(jwwLogMessage(msg, keyvals...))
+type discardHandler struct{}
+
+func (n *discardHandler) Enabled(_ context.Context, _ slog.Level) bool {
+	return false
 }

-func (jwwLogger) Info(msg string, keyvals ...interface{}) {
-	jww.INFO.Printf(jwwLogMessage(msg, keyvals...))
+func (n *discardHandler) Handle(_ context.Context, _ slog.Record) error {
+	return nil
 }

-func (jwwLogger) Warn(msg string, keyvals ...interface{}) {
-	jww.WARN.Printf(jwwLogMessage(msg, keyvals...))
+func (n *discardHandler) WithAttrs(_ []slog.Attr) slog.Handler {
+	return n
 }

-func (jwwLogger) Error(msg string, keyvals ...interface{}) {
-	jww.ERROR.Printf(jwwLogMessage(msg, keyvals...))
-}
-
-func jwwLogMessage(msg string, keyvals ...interface{}) string {
-	out := msg
-
-	if len(keyvals) > 0 && len(keyvals)%2 == 1 {
-		keyvals = append(keyvals, nil)
-	}
-
-	for i := 0; i <= len(keyvals)-2; i += 2 {
-		out = fmt.Sprintf("%s %v=%v", out, keyvals[i], keyvals[i+1])
-	}
-
-	return out
+func (n *discardHandler) WithGroup(_ string) slog.Handler {
+	return n
 }
@@ -1,7 +1,6 @@
 package viper

 import (
-	"fmt"
 	"strings"
 	"testing"

@@ -46,11 +45,11 @@ func TestNestedOverrides(t *testing.T) {
 	deepCheckValue(assert, v, overrideLayer, []string{"tom", "size"}, 4)

 	// Case 4: key:value overridden by a map
-	v = overrideDefault(assert, "tom.size", 4, "tom", map[string]interface{}{"age": 10}) // "tom.size" is first given "4" as default value, then "tom" is overridden by map{"age":10}
-	assert.Equal(4, v.Get("tom.size"))                                                   // "tom.size" should still be reachable
-	assert.Equal(10, v.Get("tom.age"))                                                   // new value should be there
-	deepCheckValue(assert, v, overrideLayer, []string{"tom", "age"}, 10)                 // new value should be there
-	v = override(assert, "tom.size", 4, "tom", map[string]interface{}{"age": 10})
+	v = overrideDefault(assert, "tom.size", 4, "tom", map[string]any{"age": 10}) // "tom.size" is first given "4" as default value, then "tom" is overridden by map{"age":10}
+	assert.Equal(4, v.Get("tom.size"))                                           // "tom.size" should still be reachable
+	assert.Equal(10, v.Get("tom.age"))                                           // new value should be there
+	deepCheckValue(assert, v, overrideLayer, []string{"tom", "age"}, 10)         // new value should be there
+	v = override(assert, "tom.size", 4, "tom", map[string]any{"age": 10})
 	assert.Nil(v.Get("tom.size"))
 	assert.Equal(10, v.Get("tom.age"))
 	deepCheckValue(assert, v, overrideLayer, []string{"tom", "age"}, 10)
@@ -75,11 +74,11 @@ func TestNestedOverrides(t *testing.T) {
 	}
 }

-func overrideDefault(assert *assert.Assertions, firstPath string, firstValue interface{}, secondPath string, secondValue interface{}) *Viper {
+func overrideDefault(assert *assert.Assertions, firstPath string, firstValue any, secondPath string, secondValue any) *Viper {
 	return overrideFromLayer(defaultLayer, assert, firstPath, firstValue, secondPath, secondValue)
 }

-func override(assert *assert.Assertions, firstPath string, firstValue interface{}, secondPath string, secondValue interface{}) *Viper {
+func override(assert *assert.Assertions, firstPath string, firstValue any, secondPath string, secondValue any) *Viper {
 	return overrideFromLayer(overrideLayer, assert, firstPath, firstValue, secondPath, secondValue)
 }

@@ -94,7 +93,7 @@ func override(assert *assert.Assertions, firstPath string, firstValue interface{
 //
 // After each assignment, the value is checked, retrieved both by its full path
 // and by its key sequence (successive maps).
-func overrideFromLayer(l layer, assert *assert.Assertions, firstPath string, firstValue interface{}, secondPath string, secondValue interface{}) *Viper {
+func overrideFromLayer(l layer, assert *assert.Assertions, firstPath string, firstValue any, secondPath string, secondValue any) *Viper {
 	v := New()
 	firstKeys := strings.Split(firstPath, v.keyDelim)
 	if assert == nil ||
@@ -128,14 +127,14 @@ func overrideFromLayer(l layer, assert *assert.Assertions, firstPath string, fir

 // deepCheckValue checks that all given keys correspond to a valid path in the
 // configuration map of the given layer, and that the final value equals the one given
-func deepCheckValue(assert *assert.Assertions, v *Viper, l layer, keys []string, value interface{}) {
+func deepCheckValue(assert *assert.Assertions, v *Viper, l layer, keys []string, value any) {
 	if assert == nil || v == nil ||
 		len(keys) == 0 || len(keys[0]) == 0 {
 		return
 	}

 	// init
-	var val interface{}
+	var val any
 	var ms string
 	switch l {
 	case defaultLayer:
@@ -147,28 +146,25 @@ func deepCheckValue(assert *assert.Assertions, v *Viper, l layer, keys []string,
 	}

 	// loop through map
-	var m map[string]interface{}
-	err := false
+	var m map[string]any
 	for _, k := range keys {
 		if val == nil {
-			assert.Fail(fmt.Sprintf("%s is not a map[string]interface{}", ms))
+			assert.Failf("%s is not a map[string]any", ms)
 			return
 		}

 		// deep scan of the map to get the final value
-		switch val.(type) {
-		case map[interface{}]interface{}:
+		switch val := val.(type) {
+		case map[any]any:
 			m = cast.ToStringMap(val)
-		case map[string]interface{}:
-			m = val.(map[string]interface{})
+		case map[string]any:
+			m = val
 		default:
-			assert.Fail(fmt.Sprintf("%s is not a map[string]interface{}", ms))
+			assert.Failf("%s is not a map[string]any", ms)
 			return
 		}
 		ms = ms + "[\"" + k + "\"]"
 		val = m[k]
 	}
-	if !err {
-		assert.Equal(value, val)
-	}
+	assert.Equal(value, val)
 }
@@ -10,6 +10,7 @@ import (
 	"bytes"
 	"io"
 	"os"
+	"strings"

 	crypt "github.com/sagikazarmark/crypt/config"

@@ -75,6 +76,7 @@ func getConfigManager(rp viper.RemoteProvider) (crypt.ConfigManager, error) {
 	var cm crypt.ConfigManager
 	var err error

+	endpoints := strings.Split(rp.Endpoint(), ";")
 	if rp.SecretKeyring() != "" {
 		var kr *os.File
 		kr, err = os.Open(rp.SecretKeyring())
@@ -84,24 +86,28 @@ func getConfigManager(rp viper.RemoteProvider) (crypt.ConfigManager, error) {
 		defer kr.Close()
 		switch rp.Provider() {
 		case "etcd":
-			cm, err = crypt.NewEtcdConfigManager([]string{rp.Endpoint()}, kr)
+			cm, err = crypt.NewEtcdConfigManager(endpoints, kr)
 		case "etcd3":
-			cm, err = crypt.NewEtcdV3ConfigManager([]string{rp.Endpoint()}, kr)
+			cm, err = crypt.NewEtcdV3ConfigManager(endpoints, kr)
 		case "firestore":
-			cm, err = crypt.NewFirestoreConfigManager([]string{rp.Endpoint()}, kr)
+			cm, err = crypt.NewFirestoreConfigManager(endpoints, kr)
+		case "nats":
+			cm, err = crypt.NewNatsConfigManager(endpoints, kr)
 		default:
-			cm, err = crypt.NewConsulConfigManager([]string{rp.Endpoint()}, kr)
+			cm, err = crypt.NewConsulConfigManager(endpoints, kr)
 		}
 	} else {
 		switch rp.Provider() {
 		case "etcd":
-			cm, err = crypt.NewStandardEtcdConfigManager([]string{rp.Endpoint()})
+			cm, err = crypt.NewStandardEtcdConfigManager(endpoints)
 		case "etcd3":
-			cm, err = crypt.NewStandardEtcdV3ConfigManager([]string{rp.Endpoint()})
+			cm, err = crypt.NewStandardEtcdV3ConfigManager(endpoints)
 		case "firestore":
-			cm, err = crypt.NewStandardFirestoreConfigManager([]string{rp.Endpoint()})
+			cm, err = crypt.NewStandardFirestoreConfigManager(endpoints)
+		case "nats":
+			cm, err = crypt.NewStandardNatsConfigManager(endpoints)
 		default:
-			cm, err = crypt.NewStandardConsulConfigManager([]string{rp.Endpoint()})
+			cm, err = crypt.NewStandardConsulConfigManager(endpoints)
 		}
 	}
 	if err != nil {
@@ -18,6 +18,7 @@ import (
 	"strings"
 	"unicode"

+	slog "github.com/sagikazarmark/slog-shim"
 	"github.com/spf13/cast"
 )

@@ -31,13 +32,18 @@ func (pe ConfigParseError) Error() string {
 	return fmt.Sprintf("While parsing config: %s", pe.err.Error())
 }

+// Unwrap returns the wrapped error.
+func (pe ConfigParseError) Unwrap() error {
+	return pe.err
+}
+
 // toCaseInsensitiveValue checks if the value is a  map;
 // if so, create a copy and lower-case the keys recursively.
-func toCaseInsensitiveValue(value interface{}) interface{} {
+func toCaseInsensitiveValue(value any) any {
 	switch v := value.(type) {
-	case map[interface{}]interface{}:
+	case map[any]any:
 		value = copyAndInsensitiviseMap(cast.ToStringMap(v))
-	case map[string]interface{}:
+	case map[string]any:
 		value = copyAndInsensitiviseMap(v)
 	}

@@ -46,15 +52,15 @@ func toCaseInsensitiveValue(value interface{}) interface{} {

 // copyAndInsensitiviseMap behaves like insensitiviseMap, but creates a copy of
 // any map it makes case insensitive.
-func copyAndInsensitiviseMap(m map[string]interface{}) map[string]interface{} {
-	nm := make(map[string]interface{})
+func copyAndInsensitiviseMap(m map[string]any) map[string]any {
+	nm := make(map[string]any)

 	for key, val := range m {
 		lkey := strings.ToLower(key)
 		switch v := val.(type) {
-		case map[interface{}]interface{}:
+		case map[any]any:
 			nm[lkey] = copyAndInsensitiviseMap(cast.ToStringMap(v))
-		case map[string]interface{}:
+		case map[string]any:
 			nm[lkey] = copyAndInsensitiviseMap(v)
 		default:
 			nm[lkey] = v
@@ -64,23 +70,23 @@ func copyAndInsensitiviseMap(m map[string]interface{}) map[string]interface{} {
 	return nm
 }

-func insensitiviseVal(val interface{}) interface{} {
-	switch val.(type) {
-	case map[interface{}]interface{}:
+func insensitiviseVal(val any) any {
+	switch v := val.(type) {
+	case map[any]any:
 		// nested map: cast and recursively insensitivise
 		val = cast.ToStringMap(val)
-		insensitiviseMap(val.(map[string]interface{}))
-	case map[string]interface{}:
+		insensitiviseMap(val.(map[string]any))
+	case map[string]any:
 		// nested map: recursively insensitivise
-		insensitiviseMap(val.(map[string]interface{}))
-	case []interface{}:
+		insensitiviseMap(v)
+	case []any:
 		// nested array: recursively insensitivise
-		insensitiveArray(val.([]interface{}))
+		insensitiveArray(v)
 	}
 	return val
 }

-func insensitiviseMap(m map[string]interface{}) {
+func insensitiviseMap(m map[string]any) {
 	for key, val := range m {
 		val = insensitiviseVal(val)
 		lower := strings.ToLower(key)
@@ -93,13 +99,13 @@ func insensitiviseMap(m map[string]interface{}) {
 	}
 }

-func insensitiveArray(a []interface{}) {
+func insensitiveArray(a []any) {
 	for i, val := range a {
 		a[i] = insensitiviseVal(val)
 	}
 }

-func absPathify(logger Logger, inPath string) string {
+func absPathify(logger *slog.Logger, inPath string) string {
 	logger.Info("trying to resolve absolute path", "path", inPath)

 	if inPath == "$HOME" || strings.HasPrefix(inPath, "$HOME"+string(os.PathSeparator)) {
@@ -192,22 +198,22 @@ func parseSizeInBytes(sizeStr string) uint {
 // In case intermediate keys do not exist, or map to a non-map value,
 // a new map is created and inserted, and the search continues from there:
 // the initial map "m" may be modified!
-func deepSearch(m map[string]interface{}, path []string) map[string]interface{} {
+func deepSearch(m map[string]any, path []string) map[string]any {
 	for _, k := range path {
 		m2, ok := m[k]
 		if !ok {
 			// intermediate key does not exist
 			// => create it and continue from there
-			m3 := make(map[string]interface{})
+			m3 := make(map[string]any)
 			m[k] = m3
 			m = m3
 			continue
 		}
-		m3, ok := m2.(map[string]interface{})
+		m3, ok := m2.(map[string]any)
 		if !ok {
 			// intermediate key is a value
 			// => replace with a new map
-			m3 = make(map[string]interface{})
+			m3 = make(map[string]any)
 			m[k] = m3
 		}
 		// continue search from here
@@ -16,21 +16,21 @@ import (
 	"reflect"
 	"testing"

-	"github.com/spf13/viper/internal/testutil"
+	slog "github.com/sagikazarmark/slog-shim"
 )

 func TestCopyAndInsensitiviseMap(t *testing.T) {
 	var (
-		given = map[string]interface{}{
+		given = map[string]any{
 			"Foo": 32,
-			"Bar": map[interface{}]interface{}{
+			"Bar": map[any]any{
 				"ABc": "A",
 				"cDE": "B",
 			},
 		}
-		expected = map[string]interface{}{
+		expected = map[string]any{
 			"foo": 32,
-			"bar": map[string]interface{}{
+			"bar": map[string]any{
 				"abc": "A",
 				"cde": "B",
 			},
@@ -51,7 +51,7 @@ func TestCopyAndInsensitiviseMap(t *testing.T) {
 		t.Fatal("Input map changed")
 	}

-	m := given["Bar"].(map[interface{}]interface{})
+	m := given["Bar"].(map[any]any)
 	if _, ok := m["ABc"]; !ok {
 		t.Fatal("Input map changed")
 	}
@@ -64,8 +64,8 @@ func TestAbsPathify(t *testing.T) {
 	homer := filepath.Join(home, "homer")
 	wd, _ := os.Getwd()

-	testutil.Setenv(t, "HOMER_ABSOLUTE_PATH", homer)
-	testutil.Setenv(t, "VAR_WITH_RELATIVE_PATH", "relative")
+	t.Setenv("HOMER_ABSOLUTE_PATH", homer)
+	t.Setenv("VAR_WITH_RELATIVE_PATH", "relative")

 	tests := []struct {
 		input  string
@@ -87,7 +87,7 @@ func TestAbsPathify(t *testing.T) {
 	}

 	for _, test := range tests {
-		got := absPathify(jwwLogger{}, test.input)
+		got := absPathify(slog.Default(), test.input)
 		if got != test.output {
 			t.Errorf("Got %v\nexpected\n%q", got, test.output)
 		}
@@ -25,7 +25,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"log"
 	"os"
 	"path/filepath"
 	"reflect"
@@ -36,6 +35,7 @@ import (

 	"github.com/fsnotify/fsnotify"
 	"github.com/mitchellh/mapstructure"
+	slog "github.com/sagikazarmark/slog-shim"
 	"github.com/spf13/afero"
 	"github.com/spf13/cast"
 	"github.com/spf13/pflag"
@@ -206,10 +206,11 @@ type Viper struct {
 	envKeyReplacer      StringReplacer
 	allowEmptyEnv       bool

-	config         map[string]interface{}
-	override       map[string]interface{}
-	defaults       map[string]interface{}
-	kvstore        map[string]interface{}
+	parents        []string
+	config         map[string]any
+	override       map[string]any
+	defaults       map[string]any
+	kvstore        map[string]any
 	pflags         map[string]FlagValue
 	env            map[string][]string
 	aliases        map[string]string
@@ -217,7 +218,7 @@ type Viper struct {

 	onConfigChange func(fsnotify.Event)

-	logger Logger
+	logger *slog.Logger

 	// TODO: should probably be protected with a mutex
 	encoderRegistry *encoding.EncoderRegistry
@@ -231,15 +232,16 @@ func New() *Viper {
 	v.configName = "config"
 	v.configPermissions = os.FileMode(0o644)
 	v.fs = afero.NewOsFs()
-	v.config = make(map[string]interface{})
-	v.override = make(map[string]interface{})
-	v.defaults = make(map[string]interface{})
-	v.kvstore = make(map[string]interface{})
+	v.config = make(map[string]any)
+	v.parents = []string{}
+	v.override = make(map[string]any)
+	v.defaults = make(map[string]any)
+	v.kvstore = make(map[string]any)
 	v.pflags = make(map[string]FlagValue)
 	v.env = make(map[string][]string)
 	v.aliases = make(map[string]string)
 	v.typeByDefValue = false
-	v.logger = jwwLogger{}
+	v.logger = slog.New(&discardHandler{})

 	v.resetEncoding()

@@ -300,7 +302,7 @@ func NewWithOptions(opts ...Option) *Viper {
 func Reset() {
 	v = New()
 	SupportedExts = []string{"json", "toml", "yaml", "yml", "properties", "props", "prop", "hcl", "tfvars", "dotenv", "env", "ini"}
-	SupportedRemoteProviders = []string{"etcd", "etcd3", "consul", "firestore"}
+	SupportedRemoteProviders = []string{"etcd", "etcd3", "consul", "firestore", "nats"}
 }

 // TODO: make this lazy initialization instead
@@ -419,28 +421,34 @@ type RemoteProvider interface {
 var SupportedExts = []string{"json", "toml", "yaml", "yml", "properties", "props", "prop", "hcl", "tfvars", "dotenv", "env", "ini"}

 // SupportedRemoteProviders are universally supported remote providers.
-var SupportedRemoteProviders = []string{"etcd", "etcd3", "consul", "firestore"}
+var SupportedRemoteProviders = []string{"etcd", "etcd3", "consul", "firestore", "nats"}

+// OnConfigChange sets the event handler that is called when a config file changes.
 func OnConfigChange(run func(in fsnotify.Event)) { v.OnConfigChange(run) }
+
+// OnConfigChange sets the event handler that is called when a config file changes.
 func (v *Viper) OnConfigChange(run func(in fsnotify.Event)) {
 	v.onConfigChange = run
 }

+// WatchConfig starts watching a config file for changes.
 func WatchConfig() { v.WatchConfig() }

+// WatchConfig starts watching a config file for changes.
 func (v *Viper) WatchConfig() {
 	initWG := sync.WaitGroup{}
 	initWG.Add(1)
 	go func() {
 		watcher, err := newWatcher()
 		if err != nil {
-			log.Fatal(err)
+			v.logger.Error(fmt.Sprintf("failed to create watcher: %s", err))
+			os.Exit(1)
 		}
 		defer watcher.Close()
 		// we have to watch the entire directory to pick up renames/atomic saves in a cross-platform way
 		filename, err := v.getConfigFile()
 		if err != nil {
-			log.Printf("error: %v\n", err)
+			v.logger.Error(fmt.Sprintf("get config file: %s", err))
 			initWG.Done()
 			return
 		}
@@ -463,27 +471,25 @@ func (v *Viper) WatchConfig() {
 					// we only care about the config file with the following cases:
 					// 1 - if the config file was modified or created
 					// 2 - if the real path to the config file changed (eg: k8s ConfigMap replacement)
-					const writeOrCreateMask = fsnotify.Write | fsnotify.Create
 					if (filepath.Clean(event.Name) == configFile &&
-						event.Op&writeOrCreateMask != 0) ||
+						(event.Has(fsnotify.Write) || event.Has(fsnotify.Create))) ||
 						(currentConfigFile != "" && currentConfigFile != realConfigFile) {
 						realConfigFile = currentConfigFile
 						err := v.ReadInConfig()
 						if err != nil {
-							log.Printf("error reading config file: %v\n", err)
+							v.logger.Error(fmt.Sprintf("read config file: %s", err))
 						}
 						if v.onConfigChange != nil {
 							v.onConfigChange(event)
 						}
-					} else if filepath.Clean(event.Name) == configFile &&
-						event.Op&fsnotify.Remove != 0 {
+					} else if filepath.Clean(event.Name) == configFile && event.Has(fsnotify.Remove) {
 						eventsWG.Done()
 						return
 					}

 				case err, ok := <-watcher.Errors:
 					if ok { // 'Errors' channel is not closed
-						log.Printf("watcher error: %v\n", err)
+						v.logger.Error(fmt.Sprintf("watcher error: %s", err))
 					}
 					eventsWG.Done()
 					return
@@ -518,6 +524,12 @@ func (v *Viper) SetEnvPrefix(in string) {
 	}
 }

+func GetEnvPrefix() string { return v.GetEnvPrefix() }
+
+func (v *Viper) GetEnvPrefix() string {
+	return v.envPrefix
+}
+
 func (v *Viper) mergeWithEnvPrefix(in string) string {
 	if v.envPrefix != "" {
 		return strings.ToUpper(v.envPrefix + "_" + in)
@@ -573,8 +585,8 @@ func (v *Viper) AddConfigPath(in string) {

 // AddRemoteProvider adds a remote configuration source.
 // Remote Providers are searched in the order they are added.
-// provider is a string value: "etcd", "etcd3", "consul" or "firestore" are currently supported.
-// endpoint is the url.  etcd requires http://ip:port  consul requires ip:port
+// provider is a string value: "etcd", "etcd3", "consul", "firestore" or "nats" are currently supported.
+// endpoint is the url.  etcd requires http://ip:port, consul requires ip:port, nats requires nats://ip:port
 // path is the path in the k/v store to retrieve configuration
 // To retrieve a config file called myapp.json from /configs/myapp.json
 // you should set path to /configs and set config name (SetConfigName()) to
@@ -604,7 +616,7 @@ func (v *Viper) AddRemoteProvider(provider, endpoint, path string) error {

 // AddSecureRemoteProvider adds a remote configuration source.
 // Secure Remote Providers are searched in the order they are added.
-// provider is a string value: "etcd", "etcd3", "consul" or "firestore" are currently supported.
+// provider is a string value: "etcd", "etcd3", "consul", "firestore" or "nats" are currently supported.
 // endpoint is the url.  etcd requires http://ip:port  consul requires ip:port
 // secretkeyring is the filepath to your openpgp secret keyring.  e.g. /etc/secrets/myring.gpg
 // path is the path in the k/v store to retrieve configuration
@@ -648,7 +660,7 @@ func (v *Viper) providerPathExists(p *defaultRemoteProvider) bool {
 // searchMap recursively searches for a value for path in source map.
 // Returns nil if not found.
 // Note: This assumes that the path entries and map keys are lower cased.
-func (v *Viper) searchMap(source map[string]interface{}, path []string) interface{} {
+func (v *Viper) searchMap(source map[string]any, path []string) any {
 	if len(path) == 0 {
 		return source
 	}
@@ -661,13 +673,13 @@ func (v *Viper) searchMap(source map[string]interface{}, path []string) interfac
 		}

 		// Nested case
-		switch next.(type) {
-		case map[interface{}]interface{}:
+		switch next := next.(type) {
+		case map[any]any:
 			return v.searchMap(cast.ToStringMap(next), path[1:])
-		case map[string]interface{}:
+		case map[string]any:
 			// Type assertion is safe here since it is only reached
 			// if the type of `next` is the same as the type being asserted
-			return v.searchMap(next.(map[string]interface{}), path[1:])
+			return v.searchMap(next, path[1:])
 		default:
 			// got a value but nested key expected, return "nil" for not found
 			return nil
@@ -687,7 +699,7 @@ func (v *Viper) searchMap(source map[string]interface{}, path []string) interfac
 // in their keys).
 //
 // Note: This assumes that the path entries and map keys are lower cased.
-func (v *Viper) searchIndexableWithPathPrefixes(source interface{}, path []string) interface{} {
+func (v *Viper) searchIndexableWithPathPrefixes(source any, path []string) any {
 	if len(path) == 0 {
 		return source
 	}
@@ -696,11 +708,11 @@ func (v *Viper) searchIndexableWithPathPrefixes(source interface{}, path []strin
 	for i := len(path); i > 0; i-- {
 		prefixKey := strings.ToLower(strings.Join(path[0:i], v.keyDelim))

-		var val interface{}
+		var val any
 		switch sourceIndexable := source.(type) {
-		case []interface{}:
+		case []any:
 			val = v.searchSliceWithPathPrefixes(sourceIndexable, prefixKey, i, path)
-		case map[string]interface{}:
+		case map[string]any:
 			val = v.searchMapWithPathPrefixes(sourceIndexable, prefixKey, i, path)
 		}
 		if val != nil {
@@ -717,11 +729,11 @@ func (v *Viper) searchIndexableWithPathPrefixes(source interface{}, path []strin
 // This function is part of the searchIndexableWithPathPrefixes recurring search and
 // should not be called directly from functions other than searchIndexableWithPathPrefixes.
 func (v *Viper) searchSliceWithPathPrefixes(
-	sourceSlice []interface{},
+	sourceSlice []any,
 	prefixKey string,
 	pathIndex int,
 	path []string,
-) interface{} {
+) any {
 	// if the prefixKey is not a number or it is out of bounds of the slice
 	index, err := strconv.Atoi(prefixKey)
 	if err != nil || len(sourceSlice) <= index {
@@ -736,9 +748,9 @@ func (v *Viper) searchSliceWithPathPrefixes(
 	}

 	switch n := next.(type) {
-	case map[interface{}]interface{}:
+	case map[any]any:
 		return v.searchIndexableWithPathPrefixes(cast.ToStringMap(n), path[pathIndex:])
-	case map[string]interface{}, []interface{}:
+	case map[string]any, []any:
 		return v.searchIndexableWithPathPrefixes(n, path[pathIndex:])
 	default:
 		// got a value but nested key expected, do nothing and look for next prefix
@@ -753,11 +765,11 @@ func (v *Viper) searchSliceWithPathPrefixes(
 // This function is part of the searchIndexableWithPathPrefixes recurring search and
 // should not be called directly from functions other than searchIndexableWithPathPrefixes.
 func (v *Viper) searchMapWithPathPrefixes(
-	sourceMap map[string]interface{},
+	sourceMap map[string]any,
 	prefixKey string,
 	pathIndex int,
 	path []string,
-) interface{} {
+) any {
 	next, ok := sourceMap[prefixKey]
 	if !ok {
 		return nil
@@ -770,9 +782,9 @@ func (v *Viper) searchMapWithPathPrefixes(

 	// Nested case
 	switch n := next.(type) {
-	case map[interface{}]interface{}:
+	case map[any]any:
 		return v.searchIndexableWithPathPrefixes(cast.ToStringMap(n), path[pathIndex:])
-	case map[string]interface{}, []interface{}:
+	case map[string]any, []any:
 		return v.searchIndexableWithPathPrefixes(n, path[pathIndex:])
 	default:
 		// got a value but nested key expected, do nothing and look for next prefix
@@ -787,8 +799,8 @@ func (v *Viper) searchMapWithPathPrefixes(
 // e.g., if "foo.bar" has a value in the given map, it “shadows”
 //
 //	"foo.bar.baz" in a lower-priority map
-func (v *Viper) isPathShadowedInDeepMap(path []string, m map[string]interface{}) string {
-	var parentVal interface{}
+func (v *Viper) isPathShadowedInDeepMap(path []string, m map[string]any) string {
+	var parentVal any
 	for i := 1; i < len(path); i++ {
 		parentVal = v.searchMap(m, path[0:i])
 		if parentVal == nil {
@@ -796,9 +808,9 @@ func (v *Viper) isPathShadowedInDeepMap(path []string, m map[string]interface{})
 			return ""
 		}
 		switch parentVal.(type) {
-		case map[interface{}]interface{}:
+		case map[any]any:
 			continue
-		case map[string]interface{}:
+		case map[string]any:
 			continue
 		default:
 			// parentVal is a regular value which shadows "path"
@@ -813,9 +825,9 @@ func (v *Viper) isPathShadowedInDeepMap(path []string, m map[string]interface{})
 // e.g., if "foo.bar" has a value in the given map, it “shadows”
 //
 //	"foo.bar.baz" in a lower-priority map
-func (v *Viper) isPathShadowedInFlatMap(path []string, mi interface{}) string {
+func (v *Viper) isPathShadowedInFlatMap(path []string, mi any) string {
 	// unify input map
-	var m map[string]interface{}
+	var m map[string]any
 	switch mi.(type) {
 	case map[string]string, map[string]FlagValue:
 		m = cast.ToStringMap(mi)
@@ -882,9 +894,9 @@ func GetViper() *Viper {
 // override, flag, env, config file, key/value store, default
 //
 // Get returns an interface. For a specific value use one of the Get____ methods.
-func Get(key string) interface{} { return v.Get(key) }
+func Get(key string) any { return v.Get(key) }

-func (v *Viper) Get(key string) interface{} {
+func (v *Viper) Get(key string) any {
 	lcaseKey := strings.ToLower(key)
 	val := v.find(lcaseKey, true)
 	if val == nil {
@@ -925,6 +937,8 @@ func (v *Viper) Get(key string) interface{} {
 			return cast.ToStringSlice(val)
 		case []int:
 			return cast.ToIntSlice(val)
+		case []time.Duration:
+			return cast.ToDurationSlice(val)
 		}
 	}

@@ -943,6 +957,10 @@ func (v *Viper) Sub(key string) *Viper {
 	}

 	if reflect.TypeOf(data).Kind() == reflect.Map {
+		subv.parents = append(v.parents, strings.ToLower(key))
+		subv.automaticEnvApplied = v.automaticEnvApplied
+		subv.envPrefix = v.envPrefix
+		subv.envKeyReplacer = v.envKeyReplacer
 		subv.config = cast.ToStringMap(data)
 		return subv
 	}
@@ -1048,9 +1066,9 @@ func (v *Viper) GetStringSlice(key string) []string {
 }

 // GetStringMap returns the value associated with the key as a map of interfaces.
-func GetStringMap(key string) map[string]interface{} { return v.GetStringMap(key) }
+func GetStringMap(key string) map[string]any { return v.GetStringMap(key) }

-func (v *Viper) GetStringMap(key string) map[string]interface{} {
+func (v *Viper) GetStringMap(key string) map[string]any {
 	return cast.ToStringMap(v.Get(key))
 }

@@ -1078,27 +1096,27 @@ func (v *Viper) GetSizeInBytes(key string) uint {
 }

 // UnmarshalKey takes a single key and unmarshals it into a Struct.
-func UnmarshalKey(key string, rawVal interface{}, opts ...DecoderConfigOption) error {
+func UnmarshalKey(key string, rawVal any, opts ...DecoderConfigOption) error {
 	return v.UnmarshalKey(key, rawVal, opts...)
 }

-func (v *Viper) UnmarshalKey(key string, rawVal interface{}, opts ...DecoderConfigOption) error {
+func (v *Viper) UnmarshalKey(key string, rawVal any, opts ...DecoderConfigOption) error {
 	return decode(v.Get(key), defaultDecoderConfig(rawVal, opts...))
 }

 // Unmarshal unmarshals the config into a Struct. Make sure that the tags
 // on the fields of the structure are properly set.
-func Unmarshal(rawVal interface{}, opts ...DecoderConfigOption) error {
+func Unmarshal(rawVal any, opts ...DecoderConfigOption) error {
 	return v.Unmarshal(rawVal, opts...)
 }

-func (v *Viper) Unmarshal(rawVal interface{}, opts ...DecoderConfigOption) error {
+func (v *Viper) Unmarshal(rawVal any, opts ...DecoderConfigOption) error {
 	return decode(v.AllSettings(), defaultDecoderConfig(rawVal, opts...))
 }

-// defaultDecoderConfig returns default mapsstructure.DecoderConfig with suppot
+// defaultDecoderConfig returns default mapstructure.DecoderConfig with support
 // of time.Duration values & string slices
-func defaultDecoderConfig(output interface{}, opts ...DecoderConfigOption) *mapstructure.DecoderConfig {
+func defaultDecoderConfig(output any, opts ...DecoderConfigOption) *mapstructure.DecoderConfig {
 	c := &mapstructure.DecoderConfig{
 		Metadata:         nil,
 		Result:           output,
@@ -1115,7 +1133,7 @@ func defaultDecoderConfig(output interface{}, opts ...DecoderConfigOption) *maps
 }

 // A wrapper around mapstructure.Decode that mimics the WeakDecode functionality
-func decode(input interface{}, config *mapstructure.DecoderConfig) error {
+func decode(input any, config *mapstructure.DecoderConfig) error {
 	decoder, err := mapstructure.NewDecoder(config)
 	if err != nil {
 		return err
@@ -1125,11 +1143,11 @@ func decode(input interface{}, config *mapstructure.DecoderConfig) error {

 // UnmarshalExact unmarshals the config into a Struct, erroring if a field is nonexistent
 // in the destination struct.
-func UnmarshalExact(rawVal interface{}, opts ...DecoderConfigOption) error {
+func UnmarshalExact(rawVal any, opts ...DecoderConfigOption) error {
 	return v.UnmarshalExact(rawVal, opts...)
 }

-func (v *Viper) UnmarshalExact(rawVal interface{}, opts ...DecoderConfigOption) error {
+func (v *Viper) UnmarshalExact(rawVal any, opts ...DecoderConfigOption) error {
 	config := defaultDecoderConfig(rawVal, opts...)
 	config.ErrorUnused = true

@@ -1226,9 +1244,9 @@ func (v *Viper) MustBindEnv(input ...string) {
 // corresponds to a flag, the flag's default value is returned.
 //
 // Note: this assumes a lower-cased key given.
-func (v *Viper) find(lcaseKey string, flagDefault bool) interface{} {
+func (v *Viper) find(lcaseKey string, flagDefault bool) any {
 	var (
-		val    interface{}
+		val    any
 		exists bool
 		path   = strings.Split(lcaseKey, v.keyDelim)
 		nested = len(path) > 1
@@ -1271,8 +1289,15 @@ func (v *Viper) find(lcaseKey string, flagDefault bool) interface{} {
 			s = strings.TrimSuffix(s, "]")
 			res, _ := readAsCSV(s)
 			return cast.ToIntSlice(res)
+		case "durationSlice":
+			s := strings.TrimPrefix(flag.ValueString(), "[")
+			s = strings.TrimSuffix(s, "]")
+			slice := strings.Split(s, ",")
+			return cast.ToDurationSlice(slice)
 		case "stringToString":
 			return stringToStringConv(flag.ValueString())
+		case "stringToInt":
+			return stringToIntConv(flag.ValueString())
 		default:
 			return flag.ValueString()
 		}
@@ -1283,9 +1308,10 @@ func (v *Viper) find(lcaseKey string, flagDefault bool) interface{} {

 	// Env override next
 	if v.automaticEnvApplied {
+		envKey := strings.Join(append(v.parents, lcaseKey), ".")
 		// even if it hasn't been registered, if automaticEnv is used,
 		// check any Get request
-		if val, ok := v.getEnv(v.mergeWithEnvPrefix(lcaseKey)); ok {
+		if val, ok := v.getEnv(v.mergeWithEnvPrefix(envKey)); ok {
 			return val
 		}
 		if nested && v.isPathShadowedInAutoEnv(path) != "" {
@@ -1352,6 +1378,13 @@ func (v *Viper) find(lcaseKey string, flagDefault bool) interface{} {
 				return cast.ToIntSlice(res)
 			case "stringToString":
 				return stringToStringConv(flag.ValueString())
+			case "stringToInt":
+				return stringToIntConv(flag.ValueString())
+			case "durationSlice":
+				s := strings.TrimPrefix(flag.ValueString(), "[")
+				s = strings.TrimSuffix(s, "]")
+				slice := strings.Split(s, ",")
+				return cast.ToDurationSlice(slice)
 			default:
 				return flag.ValueString()
 			}
@@ -1372,25 +1405,49 @@ func readAsCSV(val string) ([]string, error) {
 }

 // mostly copied from pflag's implementation of this operation here https://github.com/spf13/pflag/blob/master/string_to_string.go#L79
-// alterations are: errors are swallowed, map[string]interface{} is returned in order to enable cast.ToStringMap
-func stringToStringConv(val string) interface{} {
+// alterations are: errors are swallowed, map[string]any is returned in order to enable cast.ToStringMap
+func stringToStringConv(val string) any {
 	val = strings.Trim(val, "[]")
 	// An empty string would cause an empty map
 	if len(val) == 0 {
-		return map[string]interface{}{}
+		return map[string]any{}
 	}
 	r := csv.NewReader(strings.NewReader(val))
 	ss, err := r.Read()
 	if err != nil {
 		return nil
 	}
-	out := make(map[string]interface{}, len(ss))
+	out := make(map[string]any, len(ss))
 	for _, pair := range ss {
-		kv := strings.SplitN(pair, "=", 2)
-		if len(kv) != 2 {
+		k, vv, found := strings.Cut(pair, "=")
+		if !found {
+			return nil
+		}
+		out[k] = vv
+	}
+	return out
+}
+
+// mostly copied from pflag's implementation of this operation here https://github.com/spf13/pflag/blob/d5e0c0615acee7028e1e2740a11102313be88de1/string_to_int.go#L68
+// alterations are: errors are swallowed, map[string]any is returned in order to enable cast.ToStringMap
+func stringToIntConv(val string) any {
+	val = strings.Trim(val, "[]")
+	// An empty string would cause an empty map
+	if len(val) == 0 {
+		return map[string]any{}
+	}
+	ss := strings.Split(val, ",")
+	out := make(map[string]any, len(ss))
+	for _, pair := range ss {
+		k, vv, found := strings.Cut(pair, "=")
+		if !found {
+			return nil
+		}
+		var err error
+		out[k], err = strconv.Atoi(vv)
+		if err != nil {
 			return nil
 		}
-		out[kv[0]] = kv[1]
 	}
 	return out
 }
@@ -1488,9 +1545,9 @@ func (v *Viper) InConfig(key string) bool {
 // SetDefault sets the default value for this key.
 // SetDefault is case-insensitive for a key.
 // Default only used when no value is provided by the user via flag, config or ENV.
-func SetDefault(key string, value interface{}) { v.SetDefault(key, value) }
+func SetDefault(key string, value any) { v.SetDefault(key, value) }

-func (v *Viper) SetDefault(key string, value interface{}) {
+func (v *Viper) SetDefault(key string, value any) {
 	// If alias passed in, then set the proper default
 	key = v.realKey(strings.ToLower(key))
 	value = toCaseInsensitiveValue(value)
@@ -1507,9 +1564,9 @@ func (v *Viper) SetDefault(key string, value interface{}) {
 // Set is case-insensitive for a key.
 // Will be used instead of values obtained via
 // flags, config file, ENV, default, or key/value store.
-func Set(key string, value interface{}) { v.Set(key, value) }
+func Set(key string, value any) { v.Set(key, value) }

-func (v *Viper) Set(key string, value interface{}) {
+func (v *Viper) Set(key string, value any) {
 	// If alias passed in, then set the proper override
 	key = v.realKey(strings.ToLower(key))
 	value = toCaseInsensitiveValue(value)
@@ -1543,7 +1600,7 @@ func (v *Viper) ReadInConfig() error {
 		return err
 	}

-	config := make(map[string]interface{})
+	config := make(map[string]any)

 	err = v.unmarshalReader(bytes.NewReader(file), config)
 	if err != nil {
@@ -1581,7 +1638,7 @@ func (v *Viper) MergeInConfig() error {
 func ReadConfig(in io.Reader) error { return v.ReadConfig(in) }

 func (v *Viper) ReadConfig(in io.Reader) error {
-	v.config = make(map[string]interface{})
+	v.config = make(map[string]any)
 	return v.unmarshalReader(in, v.config)
 }

@@ -1589,7 +1646,7 @@ func (v *Viper) ReadConfig(in io.Reader) error {
 func MergeConfig(in io.Reader) error { return v.MergeConfig(in) }

 func (v *Viper) MergeConfig(in io.Reader) error {
-	cfg := make(map[string]interface{})
+	cfg := make(map[string]any)
 	if err := v.unmarshalReader(in, cfg); err != nil {
 		return err
 	}
@@ -1598,11 +1655,11 @@ func (v *Viper) MergeConfig(in io.Reader) error {

 // MergeConfigMap merges the configuration from the map given with an existing config.
 // Note that the map given may be modified.
-func MergeConfigMap(cfg map[string]interface{}) error { return v.MergeConfigMap(cfg) }
+func MergeConfigMap(cfg map[string]any) error { return v.MergeConfigMap(cfg) }

-func (v *Viper) MergeConfigMap(cfg map[string]interface{}) error {
+func (v *Viper) MergeConfigMap(cfg map[string]any) error {
 	if v.config == nil {
-		v.config = make(map[string]interface{})
+		v.config = make(map[string]any)
 	}
 	insensitiviseMap(cfg)
 	mergeMaps(cfg, v.config, nil)
@@ -1667,7 +1724,7 @@ func (v *Viper) writeConfig(filename string, force bool) error {
 		return UnsupportedConfigError(configType)
 	}
 	if v.config == nil {
-		v.config = make(map[string]interface{})
+		v.config = make(map[string]any)
 	}
 	flags := os.O_CREATE | os.O_TRUNC | os.O_WRONLY
 	if !force {
@@ -1688,11 +1745,11 @@ func (v *Viper) writeConfig(filename string, force bool) error {

 // Unmarshal a Reader into a map.
 // Should probably be an unexported function.
-func unmarshalReader(in io.Reader, c map[string]interface{}) error {
+func unmarshalReader(in io.Reader, c map[string]any) error {
 	return v.unmarshalReader(in, c)
 }

-func (v *Viper) unmarshalReader(in io.Reader, c map[string]interface{}) error {
+func (v *Viper) unmarshalReader(in io.Reader, c map[string]any) error {
 	buf := new(bytes.Buffer)
 	buf.ReadFrom(in)

@@ -1726,7 +1783,7 @@ func (v *Viper) marshalWriter(f afero.File, configType string) error {
 	return nil
 }

-func keyExists(k string, m map[string]interface{}) string {
+func keyExists(k string, m map[string]any) string {
 	lk := strings.ToLower(k)
 	for mk := range m {
 		lmk := strings.ToLower(mk)
@@ -1738,33 +1795,33 @@ func keyExists(k string, m map[string]interface{}) string {
 }

 func castToMapStringInterface(
-	src map[interface{}]interface{},
-) map[string]interface{} {
-	tgt := map[string]interface{}{}
+	src map[any]any,
+) map[string]any {
+	tgt := map[string]any{}
 	for k, v := range src {
 		tgt[fmt.Sprintf("%v", k)] = v
 	}
 	return tgt
 }

-func castMapStringSliceToMapInterface(src map[string][]string) map[string]interface{} {
-	tgt := map[string]interface{}{}
+func castMapStringSliceToMapInterface(src map[string][]string) map[string]any {
+	tgt := map[string]any{}
 	for k, v := range src {
 		tgt[k] = v
 	}
 	return tgt
 }

-func castMapStringToMapInterface(src map[string]string) map[string]interface{} {
-	tgt := map[string]interface{}{}
+func castMapStringToMapInterface(src map[string]string) map[string]any {
+	tgt := map[string]any{}
 	for k, v := range src {
 		tgt[k] = v
 	}
 	return tgt
 }

-func castMapFlagToMapInterface(src map[string]FlagValue) map[string]interface{} {
-	tgt := map[string]interface{}{}
+func castMapFlagToMapInterface(src map[string]FlagValue) map[string]any {
+	tgt := map[string]any{}
 	for k, v := range src {
 		tgt[k] = v
 	}
@@ -1772,17 +1829,15 @@ func castMapFlagToMapInterface(src map[string]FlagValue) map[string]interface{}
 }

 // mergeMaps merges two maps. The `itgt` parameter is for handling go-yaml's
-// insistence on parsing nested structures as `map[interface{}]interface{}`
+// insistence on parsing nested structures as `map[any]any`
 // instead of using a `string` as the key for nest structures beyond one level
 // deep. Both map types are supported as there is a go-yaml fork that uses
-// `map[string]interface{}` instead.
-func mergeMaps(
-	src, tgt map[string]interface{}, itgt map[interface{}]interface{},
-) {
+// `map[string]any` instead.
+func mergeMaps(src, tgt map[string]any, itgt map[any]any) {
 	for sk, sv := range src {
 		tk := keyExists(sk, tgt)
 		if tk == "" {
-			v.logger.Trace("", "tk", "\"\"", fmt.Sprintf("tgt[%s]", sk), sv)
+			v.logger.Debug("", "tk", "\"\"", fmt.Sprintf("tgt[%s]", sk), sv)
 			tgt[sk] = sv
 			if itgt != nil {
 				itgt[sk] = sv
@@ -1792,7 +1847,7 @@ func mergeMaps(

 		tv, ok := tgt[tk]
 		if !ok {
-			v.logger.Trace("", fmt.Sprintf("ok[%s]", tk), false, fmt.Sprintf("tgt[%s]", sk), sv)
+			v.logger.Debug("", fmt.Sprintf("ok[%s]", tk), false, fmt.Sprintf("tgt[%s]", sk), sv)
 			tgt[sk] = sv
 			if itgt != nil {
 				itgt[sk] = sv
@@ -1803,7 +1858,7 @@ func mergeMaps(
 		svType := reflect.TypeOf(sv)
 		tvType := reflect.TypeOf(tv)

-		v.logger.Trace(
+		v.logger.Debug(
 			"processing",
 			"key", sk,
 			"st", svType,
@@ -1813,12 +1868,12 @@ func mergeMaps(
 		)

 		switch ttv := tv.(type) {
-		case map[interface{}]interface{}:
-			v.logger.Trace("merging maps (must convert)")
-			tsv, ok := sv.(map[interface{}]interface{})
+		case map[any]any:
+			v.logger.Debug("merging maps (must convert)")
+			tsv, ok := sv.(map[any]any)
 			if !ok {
 				v.logger.Error(
-					"Could not cast sv to map[interface{}]interface{}",
+					"Could not cast sv to map[any]any",
 					"key", sk,
 					"st", svType,
 					"tt", tvType,
@@ -1831,12 +1886,12 @@ func mergeMaps(
 			ssv := castToMapStringInterface(tsv)
 			stv := castToMapStringInterface(ttv)
 			mergeMaps(ssv, stv, ttv)
-		case map[string]interface{}:
-			v.logger.Trace("merging maps")
-			tsv, ok := sv.(map[string]interface{})
+		case map[string]any:
+			v.logger.Debug("merging maps")
+			tsv, ok := sv.(map[string]any)
 			if !ok {
 				v.logger.Error(
-					"Could not cast sv to map[string]interface{}",
+					"Could not cast sv to map[string]any",
 					"key", sk,
 					"st", svType,
 					"tt", tvType,
@@ -1847,7 +1902,7 @@ func mergeMaps(
 			}
 			mergeMaps(tsv, ttv, nil)
 		default:
-			v.logger.Trace("setting value")
+			v.logger.Debug("setting value")
 			tgt[tk] = sv
 			if itgt != nil {
 				itgt[tk] = sv
@@ -1898,7 +1953,7 @@ func (v *Viper) getKeyValueConfig() error {
 	return RemoteConfigError("No Files Found")
 }

-func (v *Viper) getRemoteConfig(provider RemoteProvider) (map[string]interface{}, error) {
+func (v *Viper) getRemoteConfig(provider RemoteProvider) (map[string]any, error) {
 	reader, err := RemoteConfig.Get(provider)
 	if err != nil {
 		return nil, err
@@ -1947,7 +2002,7 @@ func (v *Viper) watchKeyValueConfig() error {
 	return RemoteConfigError("No Files Found")
 }

-func (v *Viper) watchRemoteConfig(provider RemoteProvider) (map[string]interface{}, error) {
+func (v *Viper) watchRemoteConfig(provider RemoteProvider) (map[string]any, error) {
 	reader, err := RemoteConfig.Watch(provider)
 	if err != nil {
 		return nil, err
@@ -1986,7 +2041,7 @@ func (v *Viper) AllKeys() []string {
 //     it is skipped.
 //
 // The resulting set of paths is merged to the given shadow set at the same time.
-func (v *Viper) flattenAndMergeMap(shadow map[string]bool, m map[string]interface{}, prefix string) map[string]bool {
+func (v *Viper) flattenAndMergeMap(shadow map[string]bool, m map[string]any, prefix string) map[string]bool {
 	if shadow != nil && prefix != "" && shadow[prefix] {
 		// prefix is shadowed => nothing more to flatten
 		return shadow
@@ -1995,16 +2050,16 @@ func (v *Viper) flattenAndMergeMap(shadow map[string]bool, m map[string]interfac
 		shadow = make(map[string]bool)
 	}

-	var m2 map[string]interface{}
+	var m2 map[string]any
 	if prefix != "" {
 		prefix += v.keyDelim
 	}
 	for k, val := range m {
 		fullKey := prefix + k
-		switch val.(type) {
-		case map[string]interface{}:
-			m2 = val.(map[string]interface{})
-		case map[interface{}]interface{}:
+		switch val := val.(type) {
+		case map[string]any:
+			m2 = val
+		case map[any]any:
 			m2 = cast.ToStringMap(val)
 		default:
 			// immediate value
@@ -2019,7 +2074,7 @@ func (v *Viper) flattenAndMergeMap(shadow map[string]bool, m map[string]interfac

 // mergeFlatMap merges the given maps, excluding values of the second map
 // shadowed by values from the first map.
-func (v *Viper) mergeFlatMap(shadow map[string]bool, m map[string]interface{}) map[string]bool {
+func (v *Viper) mergeFlatMap(shadow map[string]bool, m map[string]any) map[string]bool {
 	// scan keys
 outer:
 	for k := range m {
@@ -2039,11 +2094,11 @@ outer:
 	return shadow
 }

-// AllSettings merges all settings and returns them as a map[string]interface{}.
-func AllSettings() map[string]interface{} { return v.AllSettings() }
+// AllSettings merges all settings and returns them as a map[string]any.
+func AllSettings() map[string]any { return v.AllSettings() }

-func (v *Viper) AllSettings() map[string]interface{} {
-	m := map[string]interface{}{}
+func (v *Viper) AllSettings() map[string]any {
+	m := map[string]any{}
 	// start from the list of keys, and construct the map one value at a time
 	for _, k := range v.AllKeys() {
 		value := v.Get(k)
@@ -1,5 +1,4 @@
-//go:build !go1.16 || !finder
-// +build !go1.16 !finder
+//go:build !finder

 package viper

@@ -1,32 +1,38 @@
-//go:build go1.16 && finder
-// +build go1.16,finder
+//go:build finder

 package viper

 import (
 	"fmt"

-	"github.com/spf13/afero"
+	"github.com/sagikazarmark/locafero"
 )

 // Search all configPaths for any config file.
 // Returns the first path that exists (and is a config file).
 func (v *Viper) findConfigFile() (string, error) {
-	finder := finder{
-		paths:            v.configPaths,
-		fileNames:        []string{v.configName},
-		extensions:       SupportedExts,
-		withoutExtension: v.configType != "",
+	var names []string
+
+	if v.configType != "" {
+		names = locafero.NameWithOptionalExtensions(v.configName, SupportedExts...)
+	} else {
+		names = locafero.NameWithExtensions(v.configName, SupportedExts...)
 	}

-	file, err := finder.Find(afero.NewIOFS(v.fs))
+	finder := locafero.Finder{
+		Paths: v.configPaths,
+		Names: names,
+		Type:  locafero.FileTypeFile,
+	}
+
+	results, err := finder.Find(v.fs)
 	if err != nil {
 		return "", err
 	}

-	if file == "" {
+	if len(results) == 0 {
 		return "", ConfigFileNotFoundError{v.configName, fmt.Sprintf("%s", v.configPaths)}
 	}

-	return file, nil
+	return results[0], nil
 }
@@ -8,15 +8,14 @@ package viper
 import (
 	"bytes"
 	"encoding/json"
+	"errors"
 	"io"
-	"io/ioutil" //nolint:staticcheck
 	"os"
 	"os/exec"
 	"path"
 	"path/filepath"
 	"reflect"
 	"runtime"
-	"sort"
 	"strings"
 	"sync"
 	"testing"
@@ -236,7 +235,7 @@ func initIni() {
 }

 // make directories for testing
-func initDirs(t *testing.T) (string, string, func()) {
+func initDirs(t *testing.T) (string, string) {
 	var (
 		testDirs = []string{`a a`, `b`, `C_`}
 		config   = `improbable`
@@ -246,38 +245,21 @@ func initDirs(t *testing.T) (string, string, func()) {
 		testDirs = append(testDirs, `d\d`)
 	}

-	root, err := ioutil.TempDir("", "")
-	require.NoError(t, err, "Failed to create temporary directory")
-
-	cleanup := true
-	defer func() {
-		if cleanup {
-			os.Chdir("..")
-			os.RemoveAll(root)
-		}
-	}()
-
-	assert.Nil(t, err)
-
-	err = os.Chdir(root)
-	require.Nil(t, err)
+	root := t.TempDir()

 	for _, dir := range testDirs {
-		err = os.Mkdir(dir, 0o750)
-		assert.Nil(t, err)
+		innerDir := filepath.Join(root, dir)
+		err := os.Mkdir(innerDir, 0o750)
+		require.NoError(t, err)

-		err = ioutil.WriteFile(
-			path.Join(dir, config+".toml"),
-			[]byte("key = \"value is "+dir+"\"\n"),
+		err = os.WriteFile(
+			filepath.Join(innerDir, config+".toml"),
+			[]byte(`key = "value is `+dir+`"`+"\n"),
 			0o640)
-		assert.Nil(t, err)
+		require.NoError(t, err)
 	}

-	cleanup = false
-	return root, config, func() {
-		os.Chdir("..")
-		os.RemoveAll(root)
-	}
+	return root, config
 }

 // stubs for PFlag Values
@@ -513,8 +495,8 @@ func TestUnmarshaling(t *testing.T) {
 	assert.False(t, InConfig("state"))
 	assert.False(t, InConfig("clothing.hat"))
 	assert.Equal(t, "steve", Get("name"))
-	assert.Equal(t, []interface{}{"skateboarding", "snowboarding", "go"}, Get("hobbies"))
-	assert.Equal(t, map[string]interface{}{"jacket": "leather", "trousers": "denim", "pants": map[string]interface{}{"size": "large"}}, Get("clothing"))
+	assert.Equal(t, []any{"skateboarding", "snowboarding", "go"}, Get("hobbies"))
+	assert.Equal(t, map[string]any{"jacket": "leather", "trousers": "denim", "pants": map[string]any{"size": "large"}}, Get("clothing"))
 	assert.Equal(t, 35, Get("age"))
 }

@@ -619,10 +601,10 @@ func TestEnv(t *testing.T) {
 	BindEnv("id")
 	BindEnv("f", "FOOD", "OLD_FOOD")

-	testutil.Setenv(t, "ID", "13")
-	testutil.Setenv(t, "FOOD", "apple")
-	testutil.Setenv(t, "OLD_FOOD", "banana")
-	testutil.Setenv(t, "NAME", "crunk")
+	t.Setenv("ID", "13")
+	t.Setenv("FOOD", "apple")
+	t.Setenv("OLD_FOOD", "banana")
+	t.Setenv("NAME", "crunk")

 	assert.Equal(t, "13", Get("id"))
 	assert.Equal(t, "apple", Get("f"))
@@ -638,7 +620,7 @@ func TestMultipleEnv(t *testing.T) {

 	BindEnv("f", "FOOD", "OLD_FOOD")

-	testutil.Setenv(t, "OLD_FOOD", "banana")
+	t.Setenv("OLD_FOOD", "banana")

 	assert.Equal(t, "banana", Get("f"))
 }
@@ -649,7 +631,7 @@ func TestEmptyEnv(t *testing.T) {
 	BindEnv("type") // Empty environment variable
 	BindEnv("name") // Bound, but not set environment variable

-	testutil.Setenv(t, "TYPE", "")
+	t.Setenv("TYPE", "")

 	assert.Equal(t, "donut", Get("type"))
 	assert.Equal(t, "Cake", Get("name"))
@@ -663,7 +645,7 @@ func TestEmptyEnv_Allowed(t *testing.T) {
 	BindEnv("type") // Empty environment variable
 	BindEnv("name") // Bound, but not set environment variable

-	testutil.Setenv(t, "TYPE", "")
+	t.Setenv("TYPE", "")

 	assert.Equal(t, "", Get("type"))
 	assert.Equal(t, "Cake", Get("name"))
@@ -676,9 +658,9 @@ func TestEnvPrefix(t *testing.T) {
 	BindEnv("id")
 	BindEnv("f", "FOOD") // not using prefix

-	testutil.Setenv(t, "FOO_ID", "13")
-	testutil.Setenv(t, "FOOD", "apple")
-	testutil.Setenv(t, "FOO_NAME", "crunk")
+	t.Setenv("FOO_ID", "13")
+	t.Setenv("FOOD", "apple")
+	t.Setenv("FOO_NAME", "crunk")

 	assert.Equal(t, "13", Get("id"))
 	assert.Equal(t, "apple", Get("f"))
@@ -694,7 +676,7 @@ func TestAutoEnv(t *testing.T) {

 	AutomaticEnv()

-	testutil.Setenv(t, "FOO_BAR", "13")
+	t.Setenv("FOO_BAR", "13")

 	assert.Equal(t, "13", Get("foo_bar"))
 }
@@ -705,7 +687,7 @@ func TestAutoEnvWithPrefix(t *testing.T) {
 	AutomaticEnv()
 	SetEnvPrefix("Baz")

-	testutil.Setenv(t, "BAZ_BAR", "13")
+	t.Setenv("BAZ_BAR", "13")

 	assert.Equal(t, "13", Get("bar"))
 }
@@ -715,7 +697,7 @@ func TestSetEnvKeyReplacer(t *testing.T) {

 	AutomaticEnv()

-	testutil.Setenv(t, "REFRESH_INTERVAL", "30s")
+	t.Setenv("REFRESH_INTERVAL", "30s")

 	replacer := strings.NewReplacer("-", "_")
 	SetEnvKeyReplacer(replacer)
@@ -728,15 +710,33 @@ func TestEnvKeyReplacer(t *testing.T) {

 	v.AutomaticEnv()

-	testutil.Setenv(t, "REFRESH_INTERVAL", "30s")
+	t.Setenv("REFRESH_INTERVAL", "30s")

 	assert.Equal(t, "30s", v.Get("refresh-interval"))
 }

+func TestEnvSubConfig(t *testing.T) {
+	initYAML()
+
+	v.AutomaticEnv()
+
+	v.SetEnvKeyReplacer(strings.NewReplacer(".", "_"))
+
+	t.Setenv("CLOTHING_PANTS_SIZE", "small")
+	subv := v.Sub("clothing").Sub("pants")
+	assert.Equal(t, "small", subv.Get("size"))
+
+	// again with EnvPrefix
+	v.SetEnvPrefix("foo") // will be uppercased automatically
+	subWithPrefix := v.Sub("clothing").Sub("pants")
+	t.Setenv("FOO_CLOTHING_PANTS_SIZE", "large")
+	assert.Equal(t, "large", subWithPrefix.Get("size"))
+}
+
 func TestAllKeys(t *testing.T) {
 	initConfigs()

-	ks := sort.StringSlice{
+	ks := []string{
 		"title",
 		"author.bio",
 		"author.e-mail",
@@ -773,14 +773,14 @@ func TestAllKeys(t *testing.T) {
 		"name_dotenv",
 	}
 	dob, _ := time.Parse(time.RFC3339, "1979-05-27T07:32:00Z")
-	all := map[string]interface{}{
-		"owner": map[string]interface{}{
+	all := map[string]any{
+		"owner": map[string]any{
 			"organization": "MongoDB",
 			"bio":          "MongoDB Chief Developer Advocate & Hacker at Large",
 			"dob":          dob,
 		},
 		"title": "TOML Example",
-		"author": map[string]interface{}{
+		"author": map[string]any{
 			"e-mail": "fake@localhost",
 			"github": "https://github.com/Unknown",
 			"name":   "Unknown",
@@ -788,28 +788,28 @@ func TestAllKeys(t *testing.T) {
 		},
 		"ppu":  0.55,
 		"eyes": "brown",
-		"clothing": map[string]interface{}{
+		"clothing": map[string]any{
 			"trousers": "denim",
 			"jacket":   "leather",
-			"pants":    map[string]interface{}{"size": "large"},
+			"pants":    map[string]any{"size": "large"},
 		},
-		"default": map[string]interface{}{
+		"default": map[string]any{
 			"import_path": "gopkg.in/ini.v1",
 			"name":        "ini",
 			"version":     "v1",
 		},
 		"id": "0001",
-		"batters": map[string]interface{}{
-			"batter": []interface{}{
-				map[string]interface{}{"type": "Regular"},
-				map[string]interface{}{"type": "Chocolate"},
-				map[string]interface{}{"type": "Blueberry"},
-				map[string]interface{}{"type": "Devil's Food"},
+		"batters": map[string]any{
+			"batter": []any{
+				map[string]any{"type": "Regular"},
+				map[string]any{"type": "Chocolate"},
+				map[string]any{"type": "Blueberry"},
+				map[string]any{"type": "Devil's Food"},
 			},
 		},
 		"hacker": true,
 		"beard":  true,
-		"hobbies": []interface{}{
+		"hobbies": []any{
 			"skateboarding",
 			"snowboarding",
 			"go",
@@ -821,13 +821,13 @@ func TestAllKeys(t *testing.T) {
 		"p_id":   "0001",
 		"p_ppu":  "0.55",
 		"p_name": "Cake",
-		"p_batters": map[string]interface{}{
-			"batter": map[string]interface{}{"type": "Regular"},
+		"p_batters": map[string]any{
+			"batter": map[string]any{"type": "Regular"},
 		},
 		"p_type": "donut",
-		"foos": []map[string]interface{}{
+		"foos": []map[string]any{
 			{
-				"foo": []map[string]interface{}{
+				"foo": []map[string]any{
 					{"key": 1},
 					{"key": 2},
 					{"key": 3},
@@ -840,11 +840,7 @@ func TestAllKeys(t *testing.T) {
 		"name_dotenv":  "Cake",
 	}

-	allkeys := sort.StringSlice(AllKeys())
-	allkeys.Sort()
-	ks.Sort()
-
-	assert.Equal(t, ks, allkeys)
+	assert.ElementsMatch(t, ks, AllKeys())
 	assert.Equal(t, all, AllSettings())
 }

@@ -856,14 +852,10 @@ func TestAllKeysWithEnv(t *testing.T) {
 	v.BindEnv("foo.bar")
 	v.SetEnvKeyReplacer(strings.NewReplacer(".", "_"))

-	testutil.Setenv(t, "ID", "13")
-	testutil.Setenv(t, "FOO_BAR", "baz")
+	t.Setenv("ID", "13")
+	t.Setenv("FOO_BAR", "baz")

-	expectedKeys := sort.StringSlice{"id", "foo.bar"}
-	expectedKeys.Sort()
-	keys := sort.StringSlice(v.AllKeys())
-	keys.Sort()
-	assert.Equal(t, expectedKeys, keys)
+	assert.ElementsMatch(t, []string{"id", "foo.bar"}, v.AllKeys())
 }

 func TestAliasesOfAliases(t *testing.T) {
@@ -874,8 +866,10 @@ func TestAliasesOfAliases(t *testing.T) {
 }

 func TestRecursiveAliases(t *testing.T) {
+	Set("baz", "bat")
 	RegisterAlias("Baz", "Roo")
 	RegisterAlias("Roo", "baz")
+	assert.Equal(t, "bat", Get("Baz"))
 }

 func TestUnmarshal(t *testing.T) {
@@ -934,7 +928,7 @@ func TestUnmarshalWithDecoderOptions(t *testing.T) {
 		mapstructure.StringToTimeDurationHookFunc(),
 		mapstructure.StringToSliceHookFunc(","),
 		// Custom Decode Hook Function
-		func(rf reflect.Kind, rt reflect.Kind, data interface{}) (interface{}, error) {
+		func(rf reflect.Kind, rt reflect.Kind, data any) (any, error) {
 			if rf != reflect.String || rt != reflect.Map {
 				return data, nil
 			}
@@ -1094,6 +1088,28 @@ func TestBindPFlagsStringArray(t *testing.T) {
 	}
 }

+func TestSliceFlagsReturnCorrectType(t *testing.T) {
+	flagSet := pflag.NewFlagSet("test", pflag.ContinueOnError)
+	flagSet.IntSlice("int", []int{1, 2}, "")
+	flagSet.StringSlice("str", []string{"3", "4"}, "")
+	flagSet.DurationSlice("duration", []time.Duration{5 * time.Second}, "")
+
+	v := New()
+	v.BindPFlags(flagSet)
+
+	all := v.AllSettings()
+
+	if _, ok := all["int"].([]int); !ok {
+		t.Errorf("unexpected type %T expected []int", all["int"])
+	}
+	if _, ok := all["str"].([]string); !ok {
+		t.Errorf("unexpected type %T expected []string", all["str"])
+	}
+	if _, ok := all["duration"].([]time.Duration); !ok {
+		t.Errorf("unexpected type %T expected []time.Duration", all["duration"])
+	}
+}
+
 //nolint:dupl
 func TestBindPFlagsIntSlice(t *testing.T) {
 	tests := []struct {
@@ -1213,12 +1229,59 @@ func TestBindPFlagStringToString(t *testing.T) {
 	}
 }

+func TestBindPFlagStringToInt(t *testing.T) {
+	tests := []struct {
+		Expected map[string]int
+		Value    string
+	}{
+		{map[string]int{"yo": 1, "oh": 21}, "yo=1,oh=21"},
+		{map[string]int{"yo": 100000000, "oh": 0}, "yo=100000000,oh=0"},
+		{map[string]int{}, "yo=2,oh=21.0"},
+		{map[string]int{}, "yo=,oh=20.99"},
+		{map[string]int{}, "yo=,oh="},
+	}
+
+	v := New() // create independent Viper object
+	defaultVal := map[string]int{}
+	v.SetDefault("stringtoint", defaultVal)
+
+	for _, testValue := range tests {
+		flagSet := pflag.NewFlagSet("test", pflag.ContinueOnError)
+		flagSet.StringToInt("stringtoint", testValue.Expected, "test")
+
+		for _, changed := range []bool{true, false} {
+			flagSet.VisitAll(func(f *pflag.Flag) {
+				f.Value.Set(testValue.Value)
+				f.Changed = changed
+			})
+
+			err := v.BindPFlags(flagSet)
+			if err != nil {
+				t.Fatalf("error binding flag set, %v", err)
+			}
+
+			type TestMap struct {
+				StringToInt map[string]int
+			}
+			val := &TestMap{}
+			if err := v.Unmarshal(val); err != nil {
+				t.Fatalf("%+#v cannot unmarshal: %s", testValue.Value, err)
+			}
+			if changed {
+				assert.Equal(t, testValue.Expected, val.StringToInt)
+			} else {
+				assert.Equal(t, defaultVal, val.StringToInt)
+			}
+		}
+	}
+}
+
 func TestBoundCaseSensitivity(t *testing.T) {
 	assert.Equal(t, "brown", Get("eyes"))

 	BindEnv("eYEs", "TURTLE_EYES")

-	testutil.Setenv(t, "TURTLE_EYES", "blue")
+	t.Setenv("TURTLE_EYES", "blue")

 	assert.Equal(t, "blue", Get("eyes"))

@@ -1256,38 +1319,38 @@ func TestFindsNestedKeys(t *testing.T) {
 	initConfigs()
 	dob, _ := time.Parse(time.RFC3339, "1979-05-27T07:32:00Z")

-	Set("super", map[string]interface{}{
-		"deep": map[string]interface{}{
+	Set("super", map[string]any{
+		"deep": map[string]any{
 			"nested": "value",
 		},
 	})

-	expected := map[string]interface{}{
-		"super": map[string]interface{}{
-			"deep": map[string]interface{}{
+	expected := map[string]any{
+		"super": map[string]any{
+			"deep": map[string]any{
 				"nested": "value",
 			},
 		},
-		"super.deep": map[string]interface{}{
+		"super.deep": map[string]any{
 			"nested": "value",
 		},
 		"super.deep.nested":  "value",
 		"owner.organization": "MongoDB",
-		"batters.batter": []interface{}{
-			map[string]interface{}{
+		"batters.batter": []any{
+			map[string]any{
 				"type": "Regular",
 			},
-			map[string]interface{}{
+			map[string]any{
 				"type": "Chocolate",
 			},
-			map[string]interface{}{
+			map[string]any{
 				"type": "Blueberry",
 			},
-			map[string]interface{}{
+			map[string]any{
 				"type": "Devil's Food",
 			},
 		},
-		"hobbies": []interface{}{
+		"hobbies": []any{
 			"skateboarding", "snowboarding", "go",
 		},
 		"TITLE_DOTENV": "DotEnv Example",
@@ -1295,25 +1358,25 @@ func TestFindsNestedKeys(t *testing.T) {
 		"NAME_DOTENV":  "Cake",
 		"title":        "TOML Example",
 		"newkey":       "remote",
-		"batters": map[string]interface{}{
-			"batter": []interface{}{
-				map[string]interface{}{
+		"batters": map[string]any{
+			"batter": []any{
+				map[string]any{
 					"type": "Regular",
 				},
-				map[string]interface{}{
+				map[string]any{
 					"type": "Chocolate",
 				},
-				map[string]interface{}{
+				map[string]any{
 					"type": "Blueberry",
 				},
-				map[string]interface{}{
+				map[string]any{
 					"type": "Devil's Food",
 				},
 			},
 		},
 		"eyes": "brown",
 		"age":  35,
-		"owner": map[string]interface{}{
+		"owner": map[string]any{
 			"organization": "MongoDB",
 			"bio":          "MongoDB Chief Developer Advocate & Hacker at Large",
 			"dob":          dob,
@@ -1324,10 +1387,10 @@ func TestFindsNestedKeys(t *testing.T) {
 		"name":      "Cake",
 		"hacker":    true,
 		"ppu":       0.55,
-		"clothing": map[string]interface{}{
+		"clothing": map[string]any{
 			"jacket":   "leather",
 			"trousers": "denim",
-			"pants": map[string]interface{}{
+			"pants": map[string]any{
 				"size": "large",
 			},
 		},
@@ -1336,9 +1399,9 @@ func TestFindsNestedKeys(t *testing.T) {
 		"clothing.trousers":   "denim",
 		"owner.dob":           dob,
 		"beard":               true,
-		"foos": []map[string]interface{}{
+		"foos": []map[string]any{
 			{
-				"foo": []map[string]interface{}{
+				"foo": []map[string]any{
 					{
 						"key": 1,
 					},
@@ -1372,8 +1435,8 @@ func TestReadBufConfig(t *testing.T) {
 	assert.False(t, v.InConfig("state"))
 	assert.False(t, v.InConfig("clothing.hat"))
 	assert.Equal(t, "steve", v.Get("name"))
-	assert.Equal(t, []interface{}{"skateboarding", "snowboarding", "go"}, v.Get("hobbies"))
-	assert.Equal(t, map[string]interface{}{"jacket": "leather", "trousers": "denim", "pants": map[string]interface{}{"size": "large"}}, v.Get("clothing"))
+	assert.Equal(t, []any{"skateboarding", "snowboarding", "go"}, v.Get("hobbies"))
+	assert.Equal(t, map[string]any{"jacket": "leather", "trousers": "denim", "pants": map[string]any{"size": "large"}}, v.Get("clothing"))
 	assert.Equal(t, 35, v.Get("age"))
 }

@@ -1402,8 +1465,8 @@ func TestIsSet(t *testing.T) {
 	v.BindEnv("clothing.hat")
 	v.BindEnv("clothing.hats")

-	testutil.Setenv(t, "FOO", "bar")
-	testutil.Setenv(t, "CLOTHING_HAT", "bowler")
+	t.Setenv("FOO", "bar")
+	t.Setenv("CLOTHING_HAT", "bowler")

 	assert.True(t, v.IsSet("eyes"))           // in the config file
 	assert.True(t, v.IsSet("foo"))            // in the environment
@@ -1425,30 +1488,28 @@ func TestIsSet(t *testing.T) {
 }

 func TestDirsSearch(t *testing.T) {
-	root, config, cleanup := initDirs(t)
-	defer cleanup()
+	root, config := initDirs(t)

 	v := New()
 	v.SetConfigName(config)
 	v.SetDefault(`key`, `default`)

-	entries, err := ioutil.ReadDir(root)
-	assert.Nil(t, err)
+	entries, err := os.ReadDir(root)
+	require.NoError(t, err)
 	for _, e := range entries {
 		if e.IsDir() {
-			v.AddConfigPath(e.Name())
+			v.AddConfigPath(filepath.Join(root, e.Name()))
 		}
 	}

 	err = v.ReadInConfig()
-	assert.Nil(t, err)
+	require.NoError(t, err)

 	assert.Equal(t, `value is `+filepath.Base(v.configPaths[0]), v.GetString(`key`))
 }

 func TestWrongDirsSearchNotFound(t *testing.T) {
-	_, config, cleanup := initDirs(t)
-	defer cleanup()
+	_, config := initDirs(t)

 	v := New()
 	v.SetConfigName(config)
@@ -1458,7 +1519,7 @@ func TestWrongDirsSearchNotFound(t *testing.T) {
 	v.AddConfigPath(`thispathaintthere`)

 	err := v.ReadInConfig()
-	assert.Equal(t, reflect.TypeOf(ConfigFileNotFoundError{"", ""}), reflect.TypeOf(err))
+	assert.IsType(t, err, ConfigFileNotFoundError{"", ""})

 	// Even though config did not load and the error might have
 	// been ignored by the client, the default still loads
@@ -1466,8 +1527,7 @@ func TestWrongDirsSearchNotFound(t *testing.T) {
 }

 func TestWrongDirsSearchNotFoundForMerge(t *testing.T) {
-	_, config, cleanup := initDirs(t)
-	defer cleanup()
+	_, config := initDirs(t)

 	v := New()
 	v.SetConfigName(config)
@@ -1484,6 +1544,18 @@ func TestWrongDirsSearchNotFoundForMerge(t *testing.T) {
 	assert.Equal(t, `default`, v.GetString(`key`))
 }

+var yamlInvalid = []byte(`hash: map
+- foo
+- bar
+`)
+
+func TestUnwrapParseErrors(t *testing.T) {
+	SetConfigType("yaml")
+	if !errors.As(ReadConfig(bytes.NewBuffer(yamlInvalid)), &ConfigParseError{}) {
+		t.Fatalf("not a ConfigParseError")
+	}
+}
+
 func TestSub(t *testing.T) {
 	v := New()
 	v.SetConfigType("yaml")
@@ -1500,6 +1572,12 @@ func TestSub(t *testing.T) {

 	subv = v.Sub("missing.key")
 	assert.Equal(t, (*Viper)(nil), subv)
+
+	subv = v.Sub("clothing")
+	assert.Equal(t, []string{"clothing"}, subv.parents)
+
+	subv = v.Sub("clothing").Sub("pants")
+	assert.Equal(t, []string{"clothing", "pants"}, subv.parents)
 }

 var hclWriteExpected = []byte(`"foos" = {
@@ -2091,11 +2169,11 @@ func TestMergeConfigMap(t *testing.T) {

 	assert(37890)

-	update := map[string]interface{}{
-		"Hello": map[string]interface{}{
+	update := map[string]any{
+		"Hello": map[string]any{
 			"Pop": 1234,
 		},
-		"World": map[interface{}]interface{}{
+		"World": map[any]any{
 			"Rock": 345,
 		},
 	}
@@ -2166,19 +2244,19 @@ clothing:
 	assert.Nil(t, Get("clothing.jacket.price"))
 	assert.Equal(t, polyester, GetString("clothing.shirt"))

-	clothingSettings := AllSettings()["clothing"].(map[string]interface{})
+	clothingSettings := AllSettings()["clothing"].(map[string]any)
 	assert.Equal(t, "leather", clothingSettings["jacket"])
 	assert.Equal(t, polyester, clothingSettings["shirt"])
 }

 func TestDotParameter(t *testing.T) {
 	initJSON()
-	// shoud take precedence over batters defined in jsonExample
+	// should take precedence over batters defined in jsonExample
 	r := bytes.NewReader([]byte(`{ "batters.batter": [ { "type": "Small" } ] }`))
 	unmarshalReader(r, v.config)

 	actual := Get("batters.batter")
-	expected := []interface{}{map[string]interface{}{"type": "Small"}}
+	expected := []any{map[string]any{"type": "Small"}}
 	assert.Equal(t, expected, actual)
 }

@@ -2229,17 +2307,17 @@ R = 6

 func TestCaseInsensitiveSet(t *testing.T) {
 	Reset()
-	m1 := map[string]interface{}{
+	m1 := map[string]any{
 		"Foo": 32,
-		"Bar": map[interface{}]interface{}{
+		"Bar": map[any]any{
 			"ABc": "A",
 			"cDE": "B",
 		},
 	}

-	m2 := map[string]interface{}{
+	m2 := map[string]any{
 		"Foo": 52,
-		"Bar": map[interface{}]interface{}{
+		"Bar": map[any]any{
 			"bCd": "A",
 			"eFG": "B",
 		},
@@ -2310,7 +2388,7 @@ func TestParseNested(t *testing.T) {
 		t.Fatalf("unable to decode into struct, %v", err)
 	}

-	assert.Equal(t, 1, len(items))
+	assert.Len(t, items, 1)
 	assert.Equal(t, 100*time.Millisecond, items[0].Delay)
 	assert.Equal(t, 200*time.Millisecond, items[0].Nested.Delay)
 }
@@ -2328,36 +2406,28 @@ func doTestCaseInsensitive(t *testing.T, typ, config string) {
 	assert.Equal(t, 5, cast.ToInt(Get("ef.lm.p.q")))
 }

-func newViperWithConfigFile(t *testing.T) (*Viper, string, func()) {
-	watchDir, err := ioutil.TempDir("", "")
-	require.Nil(t, err)
+func newViperWithConfigFile(t *testing.T) (*Viper, string) {
+	watchDir := t.TempDir()
 	configFile := path.Join(watchDir, "config.yaml")
-	err = ioutil.WriteFile(configFile, []byte("foo: bar\n"), 0o640)
-	require.Nil(t, err)
-	cleanup := func() {
-		os.RemoveAll(watchDir)
-	}
+	err := os.WriteFile(configFile, []byte("foo: bar\n"), 0o640)
+	require.NoError(t, err)
 	v := New()
 	v.SetConfigFile(configFile)
 	err = v.ReadInConfig()
-	require.Nil(t, err)
+	require.NoError(t, err)
 	require.Equal(t, "bar", v.Get("foo"))
-	return v, configFile, cleanup
+	return v, configFile
 }

-func newViperWithSymlinkedConfigFile(t *testing.T) (*Viper, string, string, func()) {
-	watchDir, err := ioutil.TempDir("", "")
-	require.Nil(t, err)
+func newViperWithSymlinkedConfigFile(t *testing.T) (*Viper, string, string) {
+	watchDir := t.TempDir()
 	dataDir1 := path.Join(watchDir, "data1")
-	err = os.Mkdir(dataDir1, 0o777)
-	require.Nil(t, err)
+	err := os.Mkdir(dataDir1, 0o777)
+	require.NoError(t, err)
 	realConfigFile := path.Join(dataDir1, "config.yaml")
 	t.Logf("Real config file location: %s\n", realConfigFile)
-	err = ioutil.WriteFile(realConfigFile, []byte("foo: bar\n"), 0o640)
-	require.Nil(t, err)
-	cleanup := func() {
-		os.RemoveAll(watchDir)
-	}
+	err = os.WriteFile(realConfigFile, []byte("foo: bar\n"), 0o640)
+	require.NoError(t, err)
 	// now, symlink the tm `data1` dir to `data` in the baseDir
 	os.Symlink(dataDir1, path.Join(watchDir, "data"))
 	// and link the `<watchdir>/datadir1/config.yaml` to `<watchdir>/config.yaml`
@@ -2368,9 +2438,9 @@ func newViperWithSymlinkedConfigFile(t *testing.T) (*Viper, string, string, func
 	v := New()
 	v.SetConfigFile(configFile)
 	err = v.ReadInConfig()
-	require.Nil(t, err)
+	require.NoError(t, err)
 	require.Equal(t, "bar", v.Get("foo"))
-	return v, watchDir, configFile, cleanup
+	return v, watchDir, configFile
 }

 func TestWatchFile(t *testing.T) {
@@ -2381,8 +2451,7 @@ func TestWatchFile(t *testing.T) {

 	t.Run("file content changed", func(t *testing.T) {
 		// given a `config.yaml` file being watched
-		v, configFile, cleanup := newViperWithConfigFile(t)
-		defer cleanup()
+		v, configFile := newViperWithConfigFile(t)
 		_, err := os.Stat(configFile)
 		require.NoError(t, err)
 		t.Logf("test config file: %s\n", configFile)
@@ -2397,10 +2466,10 @@ func TestWatchFile(t *testing.T) {
 		})
 		v.WatchConfig()
 		// when overwriting the file and waiting for the custom change notification handler to be triggered
-		err = ioutil.WriteFile(configFile, []byte("foo: baz\n"), 0o640)
+		err = os.WriteFile(configFile, []byte("foo: baz\n"), 0o640)
 		wg.Wait()
 		// then the config value should have changed
-		require.Nil(t, err)
+		require.NoError(t, err)
 		assert.Equal(t, "baz", v.Get("foo"))
 	})

@@ -2409,8 +2478,7 @@ func TestWatchFile(t *testing.T) {
 		if runtime.GOOS != "linux" {
 			t.Skipf("Skipping test as symlink replacements don't work on non-linux environment...")
 		}
-		v, watchDir, _, _ := newViperWithSymlinkedConfigFile(t)
-		// defer cleanup()
+		v, watchDir, _ := newViperWithSymlinkedConfigFile(t)
 		wg := sync.WaitGroup{}
 		v.WatchConfig()
 		v.OnConfigChange(func(in fsnotify.Event) {
@@ -2421,16 +2489,16 @@ func TestWatchFile(t *testing.T) {
 		// when link to another `config.yaml` file
 		dataDir2 := path.Join(watchDir, "data2")
 		err := os.Mkdir(dataDir2, 0o777)
-		require.Nil(t, err)
+		require.NoError(t, err)
 		configFile2 := path.Join(dataDir2, "config.yaml")
-		err = ioutil.WriteFile(configFile2, []byte("foo: baz\n"), 0o640)
-		require.Nil(t, err)
+		err = os.WriteFile(configFile2, []byte("foo: baz\n"), 0o640)
+		require.NoError(t, err)
 		// change the symlink using the `ln -sfn` command
 		err = exec.Command("ln", "-sfn", dataDir2, path.Join(watchDir, "data")).Run()
-		require.Nil(t, err)
+		require.NoError(t, err)
 		wg.Wait()
 		// then
-		require.Nil(t, err)
+		require.NoError(t, err)
 		assert.Equal(t, "baz", v.Get("foo"))
 	})
 }
@@ -2480,13 +2548,13 @@ func TestKeyDelimiter(t *testing.T) {
 	err := v.unmarshalReader(r, v.config)
 	require.NoError(t, err)

-	values := map[string]interface{}{
-		"image": map[string]interface{}{
+	values := map[string]any{
+		"image": map[string]any{
 			"repository": "someImage",
 			"tag":        "1.0.0",
 		},
-		"ingress": map[string]interface{}{
-			"annotations": map[string]interface{}{
+		"ingress": map[string]any{
+			"annotations": map[string]any{
 				"traefik.frontend.rule.type":                 "PathPrefix",
 				"traefik.ingress.kubernetes.io/ssl-redirect": "true",
 			},
@@ -2500,13 +2568,13 @@ func TestKeyDelimiter(t *testing.T) {

 	type config struct {
 		Charts struct {
-			Values map[string]interface{}
+			Values map[string]any
 		}
 	}

 	expected := config{
 		Charts: struct {
-			Values map[string]interface{}
+			Values map[string]any
 		}{
 			Values: values,
 		},
@@ -1,56 +0,0 @@
-//go:build viper_yaml2
-// +build viper_yaml2
-
-package viper
-
-var yamlExample = []byte(`Hacker: true
-name: steve
-hobbies:
- skateboarding
- snowboarding
- go
-clothing:
-  jacket: leather
-  trousers: denim
-  pants:
-    size: large
-age: 35
-eyes : brown
-beard: true
-`)
-
-var yamlWriteExpected = []byte(`age: 35
-beard: true
-clothing:
-  jacket: leather
-  pants:
-    size: large
-  trousers: denim
-eyes: brown
-hacker: true
-hobbies:
- skateboarding
- snowboarding
- go
-name: steve
-`)
-
-var yamlExampleWithDot = []byte(`Hacker: true
-name: steve
-hobbies:
- skateboarding
- snowboarding
- go
-clothing:
-  jacket: leather
-  trousers: denim
-  pants:
-    size: large
-age: 35
-eyes : brown
-beard: true
-emails:
-  steve@hacker.com:
-    created: 01/02/03
-    active: true
-`)
@@ -1,6 +1,3 @@
-//go:build !viper_yaml2
-// +build !viper_yaml2
-
 package viper

 var yamlExample = []byte(`Hacker: true
@@ -1,5 +1,4 @@
-//go:build !js
-// +build !js
+//go:build darwin || dragonfly || freebsd || openbsd || linux || netbsd || solaris || windows

 package viper

@@ -1,13 +1,18 @@
-// +build js,wasm
+//go:build appengine || (!darwin && !dragonfly && !freebsd && !openbsd && !linux && !netbsd && !solaris && !windows)

 package viper

 import (
-	"errors"
+	"fmt"
+	"runtime"

 	"github.com/fsnotify/fsnotify"
 )

+func newWatcher() (*watcher, error) {
+	return &watcher{}, fmt.Errorf("fsnotify not supported on %s", runtime.GOOS)
+}
+
 type watcher struct {
 	Events chan fsnotify.Event
 	Errors chan error
@@ -24,7 +29,3 @@ func (*watcher) Add(name string) error {
 func (*watcher) Remove(name string) error {
 	return nil
 }
-
-func newWatcher() (*watcher, error) {
-	return &watcher{}, errors.New("fsnotify is not supported on WASM")
-}