Project structure refactor:

- Change package name general_server to gateway
- Changing the structure of directories and packages
- Adding vendor to the project

vendor/github.com/go-viper/mapstructure/v2/.editorconfig

@@ -0,0 +1,21 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_size = 4
+indent_style = space
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.go]
+indent_style = tab
+
+[{Makefile,*.mk}]
+indent_style = tab
+
+[*.nix]
+indent_size = 2
+
+[.golangci.yaml]
+indent_size = 2

vendor/github.com/go-viper/mapstructure/v2/.envrc

@@ -0,0 +1,4 @@
+if ! has nix_direnv_version || ! nix_direnv_version 3.0.4; then
+  source_url "https://raw.githubusercontent.com/nix-community/nix-direnv/3.0.4/direnvrc" "sha256-DzlYZ33mWF/Gs8DDeyjr8mnVmQGx7ASYqA5WlxwvBG4="
+fi
+use flake . --impure

vendor/github.com/go-viper/mapstructure/v2/.gitignore

@@ -0,0 +1,6 @@
+/.devenv/
+/.direnv/
+/.pre-commit-config.yaml
+/bin/
+/build/
+/var/

vendor/github.com/go-viper/mapstructure/v2/.golangci.yaml

@@ -0,0 +1,48 @@
+version: "2"
+
+run:
+  timeout: 10m
+
+linters:
+  enable:
+    - govet
+    - ineffassign
+    # - misspell
+    - nolintlint
+    # - revive
+
+  disable:
+    - errcheck
+    - staticcheck
+    - unused
+
+  settings:
+    misspell:
+      locale: US
+    nolintlint:
+      allow-unused: false # report any unused nolint directives
+      require-specific: false # don't require nolint directives to be specific about which linter is being skipped
+
+formatters:
+  enable:
+    - gci
+    - gofmt
+    - gofumpt
+    - goimports
+    # - golines
+
+  settings:
+    gci:
+      sections:
+        - standard
+        - default
+        - localmodule
+    gofmt:
+      simplify: true
+      rewrite-rules:
+        - pattern: interface{}
+          replacement: any
+
+  exclusions:
+    paths:
+      - internal/

vendor/github.com/go-viper/mapstructure/v2/CHANGELOG.md

@@ -0,0 +1,104 @@
+> [!WARNING]
+> As of v2 of this library, change log can be found in GitHub releases.
+
+## 1.5.1
+
+* Wrap errors so they're compatible with `errors.Is` and `errors.As` [GH-282]
+* Fix map of slices not decoding properly in certain cases. [GH-266]
+
+## 1.5.0
+
+* New option `IgnoreUntaggedFields` to ignore decoding to any fields
+  without `mapstructure` (or the configured tag name) set [GH-277]
+* New option `ErrorUnset` which makes it an error if any fields
+  in a target struct are not set by the decoding process. [GH-225]
+* New function `OrComposeDecodeHookFunc` to help compose decode hooks. [GH-240]
+* Decoding to slice from array no longer crashes [GH-265]
+* Decode nested struct pointers to map [GH-271]
+* Fix issue where `,squash` was ignored if `Squash` option was set. [GH-280]
+* Fix issue where fields with `,omitempty` would sometimes decode
+  into a map with an empty string key [GH-281]
+
+## 1.4.3
+
+* Fix cases where `json.Number` didn't decode properly [GH-261]
+
+## 1.4.2
+
+* Custom name matchers to support any sort of casing, formatting, etc. for
+  field names. [GH-250]
+* Fix possible panic in ComposeDecodeHookFunc [GH-251]
+
+## 1.4.1
+
+* Fix regression where `*time.Time` value would be set to empty and not be sent
+  to decode hooks properly [GH-232]
+
+## 1.4.0
+
+* A new decode hook type `DecodeHookFuncValue` has been added that has
+  access to the full values. [GH-183]
+* Squash is now supported with embedded fields that are struct pointers [GH-205]
+* Empty strings will convert to 0 for all numeric types when weakly decoding [GH-206]
+
+## 1.3.3
+
+* Decoding maps from maps creates a settable value for decode hooks [GH-203]
+
+## 1.3.2
+
+* Decode into interface type with a struct value is supported [GH-187]
+
+## 1.3.1
+
+* Squash should only squash embedded structs. [GH-194]
+
+## 1.3.0
+
+* Added `",omitempty"` support. This will ignore zero values in the source
+  structure when encoding. [GH-145]
+
+## 1.2.3
+
+* Fix duplicate entries in Keys list with pointer values. [GH-185]
+
+## 1.2.2
+
+* Do not add unsettable (unexported) values to the unused metadata key
+  or "remain" value. [GH-150]
+
+## 1.2.1
+
+* Go modules checksum mismatch fix
+
+## 1.2.0
+
+* Added support to capture unused values in a field using the `",remain"` value
+  in the mapstructure tag. There is an example to showcase usage.
+* Added `DecoderConfig` option to always squash embedded structs
+* `json.Number` can decode into `uint` types
+* Empty slices are preserved and not replaced with nil slices
+* Fix panic that can occur in when decoding a map into a nil slice of structs
+* Improved package documentation for godoc
+
+## 1.1.2
+
+* Fix error when decode hook decodes interface implementation into interface
+  type. [GH-140]
+
+## 1.1.1
+
+* Fix panic that can happen in `decodePtr`
+
+## 1.1.0
+
+* Added `StringToIPHookFunc` to convert `string` to `net.IP` and `net.IPNet` [GH-133]
+* Support struct to struct decoding [GH-137]
+* If source map value is nil, then destination map value is nil (instead of empty)
+* If source slice value is nil, then destination slice value is nil (instead of empty)
+* If source pointer is nil, then destination pointer is set to nil (instead of
+  allocated zero value of type)
+
+## 1.0.0
+
+* Initial tagged stable release.

vendor/github.com/go-viper/mapstructure/v2/LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2013 Mitchell Hashimoto
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

vendor/github.com/go-viper/mapstructure/v2/README.md

@@ -0,0 +1,81 @@
+# mapstructure
+
+[![GitHub Workflow Status](https://img.shields.io/github/actions/workflow/status/go-viper/mapstructure/ci.yaml?style=flat-square)](https://github.com/go-viper/mapstructure/actions/workflows/ci.yaml)
+[![go.dev reference](https://img.shields.io/badge/go.dev-reference-007d9c?logo=go&logoColor=white&style=flat-square)](https://pkg.go.dev/mod/github.com/go-viper/mapstructure/v2)
+![GitHub go.mod Go version](https://img.shields.io/github/go-mod/go-version/go-viper/mapstructure?style=flat-square&color=61CFDD)
+[![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/go-viper/mapstructure/badge?style=flat-square)](https://deps.dev/go/github.com%252Fgo-viper%252Fmapstructure%252Fv2)
+
+mapstructure is a Go library for decoding generic map values to structures
+and vice versa, while providing helpful error handling.
+
+This library is most useful when decoding values from some data stream (JSON,
+Gob, etc.) where you don't _quite_ know the structure of the underlying data
+until you read a part of it. You can therefore read a `map[string]interface{}`
+and use this library to decode it into the proper underlying native Go
+structure.
+
+## Installation
+
+```shell
+go get github.com/go-viper/mapstructure/v2
+```
+
+## Migrating from `github.com/mitchellh/mapstructure`
+
+[@mitchehllh](https://github.com/mitchellh) announced his intent to archive some of his unmaintained projects (see [here](https://gist.github.com/mitchellh/90029601268e59a29e64e55bab1c5bdc) and [here](https://github.com/mitchellh/mapstructure/issues/349)). This is a repository achieved the "blessed fork" status.
+
+You can migrate to this package by changing your import paths in your Go files to `github.com/go-viper/mapstructure/v2`.
+The API is the same, so you don't need to change anything else.
+
+Here is a script that can help you with the migration:
+
+```shell
+sed -i 's|github.com/mitchellh/mapstructure|github.com/go-viper/mapstructure/v2|g' $(find . -type f -name '*.go')
+```
+
+If you need more time to migrate your code, that is absolutely fine.
+
+Some of the latest fixes are backported to the v1 release branch of this package, so you can use the Go modules `replace` feature until you are ready to migrate:
+
+```shell
+replace github.com/mitchellh/mapstructure => github.com/go-viper/mapstructure v1.6.0
+```
+
+## Usage & Example
+
+For usage and examples see the [documentation](https://pkg.go.dev/mod/github.com/go-viper/mapstructure/v2).
+
+The `Decode` function has examples associated with it there.
+
+## But Why?!
+
+Go offers fantastic standard libraries for decoding formats such as JSON.
+The standard method is to have a struct pre-created, and populate that struct
+from the bytes of the encoded format. This is great, but the problem is if
+you have configuration or an encoding that changes slightly depending on
+specific fields. For example, consider this JSON:
+
+```json
+{
+  "type": "person",
+  "name": "Mitchell"
+}
+```
+
+Perhaps we can't populate a specific structure without first reading
+the "type" field from the JSON. We could always do two passes over the
+decoding of the JSON (reading the "type" first, and the rest later).
+However, it is much simpler to just decode this into a `map[string]interface{}`
+structure, read the "type" key, then use something like this library
+to decode it into the proper structure.
+
+## Credits
+
+Mapstructure was originally created by [@mitchellh](https://github.com/mitchellh).
+This is a maintained fork of the original library.
+
+Read more about the reasons for the fork [here](https://github.com/mitchellh/mapstructure/issues/349).
+
+## License
+
+The project is licensed under the [MIT License](LICENSE).

vendor/github.com/go-viper/mapstructure/v2/decode_hooks.go

@@ -0,0 +1,714 @@
+package mapstructure
+
+import (
+	"encoding"
+	"errors"
+	"fmt"
+	"net"
+	"net/netip"
+	"net/url"
+	"reflect"
+	"strconv"
+	"strings"
+	"time"
+)
+
+// typedDecodeHook takes a raw DecodeHookFunc (an any) and turns
+// it into the proper DecodeHookFunc type, such as DecodeHookFuncType.
+func typedDecodeHook(h DecodeHookFunc) DecodeHookFunc {
+	// Create variables here so we can reference them with the reflect pkg
+	var f1 DecodeHookFuncType
+	var f2 DecodeHookFuncKind
+	var f3 DecodeHookFuncValue
+
+	// Fill in the variables into this interface and the rest is done
+	// automatically using the reflect package.
+	potential := []any{f1, f2, f3}
+
+	v := reflect.ValueOf(h)
+	vt := v.Type()
+	for _, raw := range potential {
+		pt := reflect.ValueOf(raw).Type()
+		if vt.ConvertibleTo(pt) {
+			return v.Convert(pt).Interface()
+		}
+	}
+
+	return nil
+}
+
+// cachedDecodeHook takes a raw DecodeHookFunc (an any) and turns
+// it into a closure to be used directly
+// if the type fails to convert we return a closure always erroring to keep the previous behaviour
+func cachedDecodeHook(raw DecodeHookFunc) func(from reflect.Value, to reflect.Value) (any, error) {
+	switch f := typedDecodeHook(raw).(type) {
+	case DecodeHookFuncType:
+		return func(from reflect.Value, to reflect.Value) (any, error) {
+			return f(from.Type(), to.Type(), from.Interface())
+		}
+	case DecodeHookFuncKind:
+		return func(from reflect.Value, to reflect.Value) (any, error) {
+			return f(from.Kind(), to.Kind(), from.Interface())
+		}
+	case DecodeHookFuncValue:
+		return func(from reflect.Value, to reflect.Value) (any, error) {
+			return f(from, to)
+		}
+	default:
+		return func(from reflect.Value, to reflect.Value) (any, error) {
+			return nil, errors.New("invalid decode hook signature")
+		}
+	}
+}
+
+// DecodeHookExec executes the given decode hook. This should be used
+// since it'll naturally degrade to the older backwards compatible DecodeHookFunc
+// that took reflect.Kind instead of reflect.Type.
+func DecodeHookExec(
+	raw DecodeHookFunc,
+	from reflect.Value, to reflect.Value,
+) (any, error) {
+	switch f := typedDecodeHook(raw).(type) {
+	case DecodeHookFuncType:
+		return f(from.Type(), to.Type(), from.Interface())
+	case DecodeHookFuncKind:
+		return f(from.Kind(), to.Kind(), from.Interface())
+	case DecodeHookFuncValue:
+		return f(from, to)
+	default:
+		return nil, errors.New("invalid decode hook signature")
+	}
+}
+
+// ComposeDecodeHookFunc creates a single DecodeHookFunc that
+// automatically composes multiple DecodeHookFuncs.
+//
+// The composed funcs are called in order, with the result of the
+// previous transformation.
+func ComposeDecodeHookFunc(fs ...DecodeHookFunc) DecodeHookFunc {
+	cached := make([]func(from reflect.Value, to reflect.Value) (any, error), 0, len(fs))
+	for _, f := range fs {
+		cached = append(cached, cachedDecodeHook(f))
+	}
+	return func(f reflect.Value, t reflect.Value) (any, error) {
+		var err error
+		data := f.Interface()
+
+		newFrom := f
+		for _, c := range cached {
+			data, err = c(newFrom, t)
+			if err != nil {
+				return nil, err
+			}
+			if v, ok := data.(reflect.Value); ok {
+				newFrom = v
+			} else {
+				newFrom = reflect.ValueOf(data)
+			}
+		}
+
+		return data, nil
+	}
+}
+
+// OrComposeDecodeHookFunc executes all input hook functions until one of them returns no error. In that case its value is returned.
+// If all hooks return an error, OrComposeDecodeHookFunc returns an error concatenating all error messages.
+func OrComposeDecodeHookFunc(ff ...DecodeHookFunc) DecodeHookFunc {
+	cached := make([]func(from reflect.Value, to reflect.Value) (any, error), 0, len(ff))
+	for _, f := range ff {
+		cached = append(cached, cachedDecodeHook(f))
+	}
+	return func(a, b reflect.Value) (any, error) {
+		var allErrs string
+		var out any
+		var err error
+
+		for _, c := range cached {
+			out, err = c(a, b)
+			if err != nil {
+				allErrs += err.Error() + "\n"
+				continue
+			}
+
+			return out, nil
+		}
+
+		return nil, errors.New(allErrs)
+	}
+}
+
+// StringToSliceHookFunc returns a DecodeHookFunc that converts
+// string to []string by splitting on the given sep.
+func StringToSliceHookFunc(sep string) DecodeHookFunc {
+	return func(
+		f reflect.Type,
+		t reflect.Type,
+		data any,
+	) (any, error) {
+		if f.Kind() != reflect.String {
+			return data, nil
+		}
+		if t != reflect.SliceOf(f) {
+			return data, nil
+		}
+
+		raw := data.(string)
+		if raw == "" {
+			return []string{}, nil
+		}
+
+		return strings.Split(raw, sep), nil
+	}
+}
+
+// StringToWeakSliceHookFunc brings back the old (pre-v2) behavior of [StringToSliceHookFunc].
+//
+// As of mapstructure v2.0.0 [StringToSliceHookFunc] checks if the return type is a string slice.
+// This function removes that check.
+func StringToWeakSliceHookFunc(sep string) DecodeHookFunc {
+	return func(
+		f reflect.Type,
+		t reflect.Type,
+		data any,
+	) (any, error) {
+		if f.Kind() != reflect.String || t.Kind() != reflect.Slice {
+			return data, nil
+		}
+
+		raw := data.(string)
+		if raw == "" {
+			return []string{}, nil
+		}
+
+		return strings.Split(raw, sep), nil
+	}
+}
+
+// StringToTimeDurationHookFunc returns a DecodeHookFunc that converts
+// strings to time.Duration.
+func StringToTimeDurationHookFunc() DecodeHookFunc {
+	return func(
+		f reflect.Type,
+		t reflect.Type,
+		data any,
+	) (any, error) {
+		if f.Kind() != reflect.String {
+			return data, nil
+		}
+		if t != reflect.TypeOf(time.Duration(5)) {
+			return data, nil
+		}
+
+		// Convert it by parsing
+		d, err := time.ParseDuration(data.(string))
+
+		return d, wrapTimeParseDurationError(err)
+	}
+}
+
+// StringToTimeLocationHookFunc returns a DecodeHookFunc that converts
+// strings to *time.Location.
+func StringToTimeLocationHookFunc() DecodeHookFunc {
+	return func(
+		f reflect.Type,
+		t reflect.Type,
+		data any,
+	) (any, error) {
+		if f.Kind() != reflect.String {
+			return data, nil
+		}
+		if t != reflect.TypeOf(time.Local) {
+			return data, nil
+		}
+		d, err := time.LoadLocation(data.(string))
+
+		return d, wrapTimeParseLocationError(err)
+	}
+}
+
+// StringToURLHookFunc returns a DecodeHookFunc that converts
+// strings to *url.URL.
+func StringToURLHookFunc() DecodeHookFunc {
+	return func(
+		f reflect.Type,
+		t reflect.Type,
+		data any,
+	) (any, error) {
+		if f.Kind() != reflect.String {
+			return data, nil
+		}
+		if t != reflect.TypeOf(&url.URL{}) {
+			return data, nil
+		}
+
+		// Convert it by parsing
+		u, err := url.Parse(data.(string))
+
+		return u, wrapUrlError(err)
+	}
+}
+
+// StringToIPHookFunc returns a DecodeHookFunc that converts
+// strings to net.IP
+func StringToIPHookFunc() DecodeHookFunc {
+	return func(
+		f reflect.Type,
+		t reflect.Type,
+		data any,
+	) (any, error) {
+		if f.Kind() != reflect.String {
+			return data, nil
+		}
+		if t != reflect.TypeOf(net.IP{}) {
+			return data, nil
+		}
+
+		// Convert it by parsing
+		ip := net.ParseIP(data.(string))
+		if ip == nil {
+			return net.IP{}, fmt.Errorf("failed parsing ip")
+		}
+
+		return ip, nil
+	}
+}
+
+// StringToIPNetHookFunc returns a DecodeHookFunc that converts
+// strings to net.IPNet
+func StringToIPNetHookFunc() DecodeHookFunc {
+	return func(
+		f reflect.Type,
+		t reflect.Type,
+		data any,
+	) (any, error) {
+		if f.Kind() != reflect.String {
+			return data, nil
+		}
+		if t != reflect.TypeOf(net.IPNet{}) {
+			return data, nil
+		}
+
+		// Convert it by parsing
+		_, net, err := net.ParseCIDR(data.(string))
+		return net, wrapNetParseError(err)
+	}
+}
+
+// StringToTimeHookFunc returns a DecodeHookFunc that converts
+// strings to time.Time.
+func StringToTimeHookFunc(layout string) DecodeHookFunc {
+	return func(
+		f reflect.Type,
+		t reflect.Type,
+		data any,
+	) (any, error) {
+		if f.Kind() != reflect.String {
+			return data, nil
+		}
+		if t != reflect.TypeOf(time.Time{}) {
+			return data, nil
+		}
+
+		// Convert it by parsing
+		ti, err := time.Parse(layout, data.(string))
+
+		return ti, wrapTimeParseError(err)
+	}
+}
+
+// WeaklyTypedHook is a DecodeHookFunc which adds support for weak typing to
+// the decoder.
+//
+// Note that this is significantly different from the WeaklyTypedInput option
+// of the DecoderConfig.
+func WeaklyTypedHook(
+	f reflect.Kind,
+	t reflect.Kind,
+	data any,
+) (any, error) {
+	dataVal := reflect.ValueOf(data)
+	switch t {
+	case reflect.String:
+		switch f {
+		case reflect.Bool:
+			if dataVal.Bool() {
+				return "1", nil
+			}
+			return "0", nil
+		case reflect.Float32:
+			return strconv.FormatFloat(dataVal.Float(), 'f', -1, 64), nil
+		case reflect.Int:
+			return strconv.FormatInt(dataVal.Int(), 10), nil
+		case reflect.Slice:
+			dataType := dataVal.Type()
+			elemKind := dataType.Elem().Kind()
+			if elemKind == reflect.Uint8 {
+				return string(dataVal.Interface().([]uint8)), nil
+			}
+		case reflect.Uint:
+			return strconv.FormatUint(dataVal.Uint(), 10), nil
+		}
+	}
+
+	return data, nil
+}
+
+func RecursiveStructToMapHookFunc() DecodeHookFunc {
+	return func(f reflect.Value, t reflect.Value) (any, error) {
+		if f.Kind() != reflect.Struct {
+			return f.Interface(), nil
+		}
+
+		var i any = struct{}{}
+		if t.Type() != reflect.TypeOf(&i).Elem() {
+			return f.Interface(), nil
+		}
+
+		m := make(map[string]any)
+		t.Set(reflect.ValueOf(m))
+
+		return f.Interface(), nil
+	}
+}
+
+// TextUnmarshallerHookFunc returns a DecodeHookFunc that applies
+// strings to the UnmarshalText function, when the target type
+// implements the encoding.TextUnmarshaler interface
+func TextUnmarshallerHookFunc() DecodeHookFuncType {
+	return func(
+		f reflect.Type,
+		t reflect.Type,
+		data any,
+	) (any, error) {
+		if f.Kind() != reflect.String {
+			return data, nil
+		}
+		result := reflect.New(t).Interface()
+		unmarshaller, ok := result.(encoding.TextUnmarshaler)
+		if !ok {
+			return data, nil
+		}
+		str, ok := data.(string)
+		if !ok {
+			str = reflect.Indirect(reflect.ValueOf(&data)).Elem().String()
+		}
+		if err := unmarshaller.UnmarshalText([]byte(str)); err != nil {
+			return nil, err
+		}
+		return result, nil
+	}
+}
+
+// StringToNetIPAddrHookFunc returns a DecodeHookFunc that converts
+// strings to netip.Addr.
+func StringToNetIPAddrHookFunc() DecodeHookFunc {
+	return func(
+		f reflect.Type,
+		t reflect.Type,
+		data any,
+	) (any, error) {
+		if f.Kind() != reflect.String {
+			return data, nil
+		}
+		if t != reflect.TypeOf(netip.Addr{}) {
+			return data, nil
+		}
+
+		// Convert it by parsing
+		addr, err := netip.ParseAddr(data.(string))
+
+		return addr, wrapNetIPParseAddrError(err)
+	}
+}
+
+// StringToNetIPAddrPortHookFunc returns a DecodeHookFunc that converts
+// strings to netip.AddrPort.
+func StringToNetIPAddrPortHookFunc() DecodeHookFunc {
+	return func(
+		f reflect.Type,
+		t reflect.Type,
+		data any,
+	) (any, error) {
+		if f.Kind() != reflect.String {
+			return data, nil
+		}
+		if t != reflect.TypeOf(netip.AddrPort{}) {
+			return data, nil
+		}
+
+		// Convert it by parsing
+		addrPort, err := netip.ParseAddrPort(data.(string))
+
+		return addrPort, wrapNetIPParseAddrPortError(err)
+	}
+}
+
+// StringToNetIPPrefixHookFunc returns a DecodeHookFunc that converts
+// strings to netip.Prefix.
+func StringToNetIPPrefixHookFunc() DecodeHookFunc {
+	return func(
+		f reflect.Type,
+		t reflect.Type,
+		data any,
+	) (any, error) {
+		if f.Kind() != reflect.String {
+			return data, nil
+		}
+		if t != reflect.TypeOf(netip.Prefix{}) {
+			return data, nil
+		}
+
+		// Convert it by parsing
+		prefix, err := netip.ParsePrefix(data.(string))
+
+		return prefix, wrapNetIPParsePrefixError(err)
+	}
+}
+
+// StringToBasicTypeHookFunc returns a DecodeHookFunc that converts
+// strings to basic types.
+// int8, uint8, int16, uint16, int32, uint32, int64, uint64, int, uint, float32, float64, bool, byte, rune, complex64, complex128
+func StringToBasicTypeHookFunc() DecodeHookFunc {
+	return ComposeDecodeHookFunc(
+		StringToInt8HookFunc(),
+		StringToUint8HookFunc(),
+		StringToInt16HookFunc(),
+		StringToUint16HookFunc(),
+		StringToInt32HookFunc(),
+		StringToUint32HookFunc(),
+		StringToInt64HookFunc(),
+		StringToUint64HookFunc(),
+		StringToIntHookFunc(),
+		StringToUintHookFunc(),
+		StringToFloat32HookFunc(),
+		StringToFloat64HookFunc(),
+		StringToBoolHookFunc(),
+		// byte and rune are aliases for uint8 and int32 respectively
+		// StringToByteHookFunc(),
+		// StringToRuneHookFunc(),
+		StringToComplex64HookFunc(),
+		StringToComplex128HookFunc(),
+	)
+}
+
+// StringToInt8HookFunc returns a DecodeHookFunc that converts
+// strings to int8.
+func StringToInt8HookFunc() DecodeHookFunc {
+	return func(f reflect.Type, t reflect.Type, data any) (any, error) {
+		if f.Kind() != reflect.String || t.Kind() != reflect.Int8 {
+			return data, nil
+		}
+
+		// Convert it by parsing
+		i64, err := strconv.ParseInt(data.(string), 0, 8)
+		return int8(i64), wrapStrconvNumError(err)
+	}
+}
+
+// StringToUint8HookFunc returns a DecodeHookFunc that converts
+// strings to uint8.
+func StringToUint8HookFunc() DecodeHookFunc {
+	return func(f reflect.Type, t reflect.Type, data any) (any, error) {
+		if f.Kind() != reflect.String || t.Kind() != reflect.Uint8 {
+			return data, nil
+		}
+
+		// Convert it by parsing
+		u64, err := strconv.ParseUint(data.(string), 0, 8)
+		return uint8(u64), wrapStrconvNumError(err)
+	}
+}
+
+// StringToInt16HookFunc returns a DecodeHookFunc that converts
+// strings to int16.
+func StringToInt16HookFunc() DecodeHookFunc {
+	return func(f reflect.Type, t reflect.Type, data any) (any, error) {
+		if f.Kind() != reflect.String || t.Kind() != reflect.Int16 {
+			return data, nil
+		}
+
+		// Convert it by parsing
+		i64, err := strconv.ParseInt(data.(string), 0, 16)
+		return int16(i64), wrapStrconvNumError(err)
+	}
+}
+
+// StringToUint16HookFunc returns a DecodeHookFunc that converts
+// strings to uint16.
+func StringToUint16HookFunc() DecodeHookFunc {
+	return func(f reflect.Type, t reflect.Type, data any) (any, error) {
+		if f.Kind() != reflect.String || t.Kind() != reflect.Uint16 {
+			return data, nil
+		}
+
+		// Convert it by parsing
+		u64, err := strconv.ParseUint(data.(string), 0, 16)
+		return uint16(u64), wrapStrconvNumError(err)
+	}
+}
+
+// StringToInt32HookFunc returns a DecodeHookFunc that converts
+// strings to int32.
+func StringToInt32HookFunc() DecodeHookFunc {
+	return func(f reflect.Type, t reflect.Type, data any) (any, error) {
+		if f.Kind() != reflect.String || t.Kind() != reflect.Int32 {
+			return data, nil
+		}
+
+		// Convert it by parsing
+		i64, err := strconv.ParseInt(data.(string), 0, 32)
+		return int32(i64), wrapStrconvNumError(err)
+	}
+}
+
+// StringToUint32HookFunc returns a DecodeHookFunc that converts
+// strings to uint32.
+func StringToUint32HookFunc() DecodeHookFunc {
+	return func(f reflect.Type, t reflect.Type, data any) (any, error) {
+		if f.Kind() != reflect.String || t.Kind() != reflect.Uint32 {
+			return data, nil
+		}
+
+		// Convert it by parsing
+		u64, err := strconv.ParseUint(data.(string), 0, 32)
+		return uint32(u64), wrapStrconvNumError(err)
+	}
+}
+
+// StringToInt64HookFunc returns a DecodeHookFunc that converts
+// strings to int64.
+func StringToInt64HookFunc() DecodeHookFunc {
+	return func(f reflect.Type, t reflect.Type, data any) (any, error) {
+		if f.Kind() != reflect.String || t.Kind() != reflect.Int64 {
+			return data, nil
+		}
+
+		// Convert it by parsing
+		i64, err := strconv.ParseInt(data.(string), 0, 64)
+		return int64(i64), wrapStrconvNumError(err)
+	}
+}
+
+// StringToUint64HookFunc returns a DecodeHookFunc that converts
+// strings to uint64.
+func StringToUint64HookFunc() DecodeHookFunc {
+	return func(f reflect.Type, t reflect.Type, data any) (any, error) {
+		if f.Kind() != reflect.String || t.Kind() != reflect.Uint64 {
+			return data, nil
+		}
+
+		// Convert it by parsing
+		u64, err := strconv.ParseUint(data.(string), 0, 64)
+		return uint64(u64), wrapStrconvNumError(err)
+	}
+}
+
+// StringToIntHookFunc returns a DecodeHookFunc that converts
+// strings to int.
+func StringToIntHookFunc() DecodeHookFunc {
+	return func(f reflect.Type, t reflect.Type, data any) (any, error) {
+		if f.Kind() != reflect.String || t.Kind() != reflect.Int {
+			return data, nil
+		}
+
+		// Convert it by parsing
+		i64, err := strconv.ParseInt(data.(string), 0, 0)
+		return int(i64), wrapStrconvNumError(err)
+	}
+}
+
+// StringToUintHookFunc returns a DecodeHookFunc that converts
+// strings to uint.
+func StringToUintHookFunc() DecodeHookFunc {
+	return func(f reflect.Type, t reflect.Type, data any) (any, error) {
+		if f.Kind() != reflect.String || t.Kind() != reflect.Uint {
+			return data, nil
+		}
+
+		// Convert it by parsing
+		u64, err := strconv.ParseUint(data.(string), 0, 0)
+		return uint(u64), wrapStrconvNumError(err)
+	}
+}
+
+// StringToFloat32HookFunc returns a DecodeHookFunc that converts
+// strings to float32.
+func StringToFloat32HookFunc() DecodeHookFunc {
+	return func(f reflect.Type, t reflect.Type, data any) (any, error) {
+		if f.Kind() != reflect.String || t.Kind() != reflect.Float32 {
+			return data, nil
+		}
+
+		// Convert it by parsing
+		f64, err := strconv.ParseFloat(data.(string), 32)
+		return float32(f64), wrapStrconvNumError(err)
+	}
+}
+
+// StringToFloat64HookFunc returns a DecodeHookFunc that converts
+// strings to float64.
+func StringToFloat64HookFunc() DecodeHookFunc {
+	return func(f reflect.Type, t reflect.Type, data any) (any, error) {
+		if f.Kind() != reflect.String || t.Kind() != reflect.Float64 {
+			return data, nil
+		}
+
+		// Convert it by parsing
+		f64, err := strconv.ParseFloat(data.(string), 64)
+		return f64, wrapStrconvNumError(err)
+	}
+}
+
+// StringToBoolHookFunc returns a DecodeHookFunc that converts
+// strings to bool.
+func StringToBoolHookFunc() DecodeHookFunc {
+	return func(f reflect.Type, t reflect.Type, data any) (any, error) {
+		if f.Kind() != reflect.String || t.Kind() != reflect.Bool {
+			return data, nil
+		}
+
+		// Convert it by parsing
+		b, err := strconv.ParseBool(data.(string))
+		return b, wrapStrconvNumError(err)
+	}
+}
+
+// StringToByteHookFunc returns a DecodeHookFunc that converts
+// strings to byte.
+func StringToByteHookFunc() DecodeHookFunc {
+	return StringToUint8HookFunc()
+}
+
+// StringToRuneHookFunc returns a DecodeHookFunc that converts
+// strings to rune.
+func StringToRuneHookFunc() DecodeHookFunc {
+	return StringToInt32HookFunc()
+}
+
+// StringToComplex64HookFunc returns a DecodeHookFunc that converts
+// strings to complex64.
+func StringToComplex64HookFunc() DecodeHookFunc {
+	return func(f reflect.Type, t reflect.Type, data any) (any, error) {
+		if f.Kind() != reflect.String || t.Kind() != reflect.Complex64 {
+			return data, nil
+		}
+
+		// Convert it by parsing
+		c128, err := strconv.ParseComplex(data.(string), 64)
+		return complex64(c128), wrapStrconvNumError(err)
+	}
+}
+
+// StringToComplex128HookFunc returns a DecodeHookFunc that converts
+// strings to complex128.
+func StringToComplex128HookFunc() DecodeHookFunc {
+	return func(f reflect.Type, t reflect.Type, data any) (any, error) {
+		if f.Kind() != reflect.String || t.Kind() != reflect.Complex128 {
+			return data, nil
+		}
+
+		// Convert it by parsing
+		c128, err := strconv.ParseComplex(data.(string), 128)
+		return c128, wrapStrconvNumError(err)
+	}
+}

vendor/github.com/go-viper/mapstructure/v2/errors.go

@@ -0,0 +1,244 @@
+package mapstructure
+
+import (
+	"errors"
+	"fmt"
+	"net"
+	"net/url"
+	"reflect"
+	"strconv"
+	"strings"
+	"time"
+)
+
+// Error interface is implemented by all errors emitted by mapstructure.
+//
+// Use [errors.As] to check if an error implements this interface.
+type Error interface {
+	error
+
+	mapstructure()
+}
+
+// DecodeError is a generic error type that holds information about
+// a decoding error together with the name of the field that caused the error.
+type DecodeError struct {
+	name string
+	err  error
+}
+
+func newDecodeError(name string, err error) *DecodeError {
+	return &DecodeError{
+		name: name,
+		err:  err,
+	}
+}
+
+func (e *DecodeError) Name() string {
+	return e.name
+}
+
+func (e *DecodeError) Unwrap() error {
+	return e.err
+}
+
+func (e *DecodeError) Error() string {
+	return fmt.Sprintf("'%s' %s", e.name, e.err)
+}
+
+func (*DecodeError) mapstructure() {}
+
+// ParseError is an error type that indicates a value could not be parsed
+// into the expected type.
+type ParseError struct {
+	Expected reflect.Value
+	Value    any
+	Err      error
+}
+
+func (e *ParseError) Error() string {
+	return fmt.Sprintf("cannot parse value as '%s': %s", e.Expected.Type(), e.Err)
+}
+
+func (*ParseError) mapstructure() {}
+
+// UnconvertibleTypeError is an error type that indicates a value could not be
+// converted to the expected type.
+type UnconvertibleTypeError struct {
+	Expected reflect.Value
+	Value    any
+}
+
+func (e *UnconvertibleTypeError) Error() string {
+	return fmt.Sprintf(
+		"expected type '%s', got unconvertible type '%s'",
+		e.Expected.Type(),
+		reflect.TypeOf(e.Value),
+	)
+}
+
+func (*UnconvertibleTypeError) mapstructure() {}
+
+func wrapStrconvNumError(err error) error {
+	if err == nil {
+		return nil
+	}
+
+	if err, ok := err.(*strconv.NumError); ok {
+		return &strconvNumError{Err: err}
+	}
+
+	return err
+}
+
+type strconvNumError struct {
+	Err *strconv.NumError
+}
+
+func (e *strconvNumError) Error() string {
+	return "strconv." + e.Err.Func + ": " + e.Err.Err.Error()
+}
+
+func (e *strconvNumError) Unwrap() error { return e.Err }
+
+func wrapUrlError(err error) error {
+	if err == nil {
+		return nil
+	}
+
+	if err, ok := err.(*url.Error); ok {
+		return &urlError{Err: err}
+	}
+
+	return err
+}
+
+type urlError struct {
+	Err *url.Error
+}
+
+func (e *urlError) Error() string {
+	return fmt.Sprintf("%s", e.Err.Err)
+}
+
+func (e *urlError) Unwrap() error { return e.Err }
+
+func wrapNetParseError(err error) error {
+	if err == nil {
+		return nil
+	}
+
+	if err, ok := err.(*net.ParseError); ok {
+		return &netParseError{Err: err}
+	}
+
+	return err
+}
+
+type netParseError struct {
+	Err *net.ParseError
+}
+
+func (e *netParseError) Error() string {
+	return "invalid " + e.Err.Type
+}
+
+func (e *netParseError) Unwrap() error { return e.Err }
+
+func wrapTimeParseError(err error) error {
+	if err == nil {
+		return nil
+	}
+
+	if err, ok := err.(*time.ParseError); ok {
+		return &timeParseError{Err: err}
+	}
+
+	return err
+}
+
+type timeParseError struct {
+	Err *time.ParseError
+}
+
+func (e *timeParseError) Error() string {
+	if e.Err.Message == "" {
+		return fmt.Sprintf("parsing time as %q: cannot parse as %q", e.Err.Layout, e.Err.LayoutElem)
+	}
+
+	return "parsing time " + e.Err.Message
+}
+
+func (e *timeParseError) Unwrap() error { return e.Err }
+
+func wrapNetIPParseAddrError(err error) error {
+	if err == nil {
+		return nil
+	}
+
+	if errMsg := err.Error(); strings.HasPrefix(errMsg, "ParseAddr") {
+		errPieces := strings.Split(errMsg, ": ")
+
+		return fmt.Errorf("ParseAddr: %s", errPieces[len(errPieces)-1])
+	}
+
+	return err
+}
+
+func wrapNetIPParseAddrPortError(err error) error {
+	if err == nil {
+		return nil
+	}
+
+	errMsg := err.Error()
+	if strings.HasPrefix(errMsg, "invalid port ") {
+		return errors.New("invalid port")
+	} else if strings.HasPrefix(errMsg, "invalid ip:port ") {
+		return errors.New("invalid ip:port")
+	}
+
+	return err
+}
+
+func wrapNetIPParsePrefixError(err error) error {
+	if err == nil {
+		return nil
+	}
+
+	if errMsg := err.Error(); strings.HasPrefix(errMsg, "netip.ParsePrefix") {
+		errPieces := strings.Split(errMsg, ": ")
+
+		return fmt.Errorf("netip.ParsePrefix: %s", errPieces[len(errPieces)-1])
+	}
+
+	return err
+}
+
+func wrapTimeParseDurationError(err error) error {
+	if err == nil {
+		return nil
+	}
+
+	errMsg := err.Error()
+	if strings.HasPrefix(errMsg, "time: unknown unit ") {
+		return errors.New("time: unknown unit")
+	} else if strings.HasPrefix(errMsg, "time: ") {
+		idx := strings.LastIndex(errMsg, " ")
+
+		return errors.New(errMsg[:idx])
+	}
+
+	return err
+}
+
+func wrapTimeParseLocationError(err error) error {
+	if err == nil {
+		return nil
+	}
+	errMsg := err.Error()
+	if strings.Contains(errMsg, "unknown time zone") || strings.HasPrefix(errMsg, "time: unknown format") {
+		return fmt.Errorf("invalid time zone format: %w", err)
+	}
+
+	return err
+}

vendor/github.com/go-viper/mapstructure/v2/flake.lock

@@ -0,0 +1,294 @@
+{
+  "nodes": {
+    "cachix": {
+      "inputs": {
+        "devenv": [
+          "devenv"
+        ],
+        "flake-compat": [
+          "devenv"
+        ],
+        "git-hooks": [
+          "devenv"
+        ],
+        "nixpkgs": "nixpkgs"
+      },
+      "locked": {
+        "lastModified": 1742042642,
+        "narHash": "sha256-D0gP8srrX0qj+wNYNPdtVJsQuFzIng3q43thnHXQ/es=",
+        "owner": "cachix",
+        "repo": "cachix",
+        "rev": "a624d3eaf4b1d225f918de8543ed739f2f574203",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "ref": "latest",
+        "repo": "cachix",
+        "type": "github"
+      }
+    },
+    "devenv": {
+      "inputs": {
+        "cachix": "cachix",
+        "flake-compat": "flake-compat",
+        "git-hooks": "git-hooks",
+        "nix": "nix",
+        "nixpkgs": "nixpkgs_3"
+      },
+      "locked": {
+        "lastModified": 1744876578,
+        "narHash": "sha256-8MTBj2REB8t29sIBLpxbR0+AEGJ7f+RkzZPAGsFd40c=",
+        "owner": "cachix",
+        "repo": "devenv",
+        "rev": "7ff7c351bba20d0615be25ecdcbcf79b57b85fe1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "repo": "devenv",
+        "type": "github"
+      }
+    },
+    "flake-compat": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1733328505,
+        "narHash": "sha256-NeCCThCEP3eCl2l/+27kNNK7QrwZB1IJCrXfrbv5oqU=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "ff81ac966bb2cae68946d5ed5fc4994f96d0ffec",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
+    "flake-parts": {
+      "inputs": {
+        "nixpkgs-lib": [
+          "devenv",
+          "nix",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1712014858,
+        "narHash": "sha256-sB4SWl2lX95bExY2gMFG5HIzvva5AVMJd4Igm+GpZNw=",
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "rev": "9126214d0a59633752a136528f5f3b9aa8565b7d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "type": "github"
+      }
+    },
+    "flake-parts_2": {
+      "inputs": {
+        "nixpkgs-lib": "nixpkgs-lib"
+      },
+      "locked": {
+        "lastModified": 1743550720,
+        "narHash": "sha256-hIshGgKZCgWh6AYJpJmRgFdR3WUbkY04o82X05xqQiY=",
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "rev": "c621e8422220273271f52058f618c94e405bb0f5",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "type": "github"
+      }
+    },
+    "git-hooks": {
+      "inputs": {
+        "flake-compat": [
+          "devenv"
+        ],
+        "gitignore": "gitignore",
+        "nixpkgs": [
+          "devenv",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1742649964,
+        "narHash": "sha256-DwOTp7nvfi8mRfuL1escHDXabVXFGT1VlPD1JHrtrco=",
+        "owner": "cachix",
+        "repo": "git-hooks.nix",
+        "rev": "dcf5072734cb576d2b0c59b2ac44f5050b5eac82",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "repo": "git-hooks.nix",
+        "type": "github"
+      }
+    },
+    "gitignore": {
+      "inputs": {
+        "nixpkgs": [
+          "devenv",
+          "git-hooks",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1709087332,
+        "narHash": "sha256-HG2cCnktfHsKV0s4XW83gU3F57gaTljL9KNSuG6bnQs=",
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "rev": "637db329424fd7e46cf4185293b9cc8c88c95394",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "type": "github"
+      }
+    },
+    "libgit2": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1697646580,
+        "narHash": "sha256-oX4Z3S9WtJlwvj0uH9HlYcWv+x1hqp8mhXl7HsLu2f0=",
+        "owner": "libgit2",
+        "repo": "libgit2",
+        "rev": "45fd9ed7ae1a9b74b957ef4f337bc3c8b3df01b5",
+        "type": "github"
+      },
+      "original": {
+        "owner": "libgit2",
+        "repo": "libgit2",
+        "type": "github"
+      }
+    },
+    "nix": {
+      "inputs": {
+        "flake-compat": [
+          "devenv"
+        ],
+        "flake-parts": "flake-parts",
+        "libgit2": "libgit2",
+        "nixpkgs": "nixpkgs_2",
+        "nixpkgs-23-11": [
+          "devenv"
+        ],
+        "nixpkgs-regression": [
+          "devenv"
+        ],
+        "pre-commit-hooks": [
+          "devenv"
+        ]
+      },
+      "locked": {
+        "lastModified": 1741798497,
+        "narHash": "sha256-E3j+3MoY8Y96mG1dUIiLFm2tZmNbRvSiyN7CrSKuAVg=",
+        "owner": "domenkozar",
+        "repo": "nix",
+        "rev": "f3f44b2baaf6c4c6e179de8cbb1cc6db031083cd",
+        "type": "github"
+      },
+      "original": {
+        "owner": "domenkozar",
+        "ref": "devenv-2.24",
+        "repo": "nix",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1733212471,
+        "narHash": "sha256-M1+uCoV5igihRfcUKrr1riygbe73/dzNnzPsmaLCmpo=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "55d15ad12a74eb7d4646254e13638ad0c4128776",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-lib": {
+      "locked": {
+        "lastModified": 1743296961,
+        "narHash": "sha256-b1EdN3cULCqtorQ4QeWgLMrd5ZGOjLSLemfa00heasc=",
+        "owner": "nix-community",
+        "repo": "nixpkgs.lib",
+        "rev": "e4822aea2a6d1cdd36653c134cacfd64c97ff4fa",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "nixpkgs.lib",
+        "type": "github"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1717432640,
+        "narHash": "sha256-+f9c4/ZX5MWDOuB1rKoWj+lBNm0z0rs4CK47HBLxy1o=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "88269ab3044128b7c2f4c7d68448b2fb50456870",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "release-24.05",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_3": {
+      "locked": {
+        "lastModified": 1733477122,
+        "narHash": "sha256-qamMCz5mNpQmgBwc8SB5tVMlD5sbwVIToVZtSxMph9s=",
+        "owner": "cachix",
+        "repo": "devenv-nixpkgs",
+        "rev": "7bd9e84d0452f6d2e63b6e6da29fe73fac951857",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "ref": "rolling",
+        "repo": "devenv-nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_4": {
+      "locked": {
+        "lastModified": 1744536153,
+        "narHash": "sha256-awS2zRgF4uTwrOKwwiJcByDzDOdo3Q1rPZbiHQg/N38=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "18dd725c29603f582cf1900e0d25f9f1063dbf11",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "devenv": "devenv",
+        "flake-parts": "flake-parts_2",
+        "nixpkgs": "nixpkgs_4"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

vendor/github.com/go-viper/mapstructure/v2/flake.nix

@@ -0,0 +1,46 @@
+{
+  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 =
+        { pkgs, ... }:
+        rec {
+          devenv.shells = {
+            default = {
+              languages = {
+                go.enable = true;
+              };
+
+              pre-commit.hooks = {
+                nixpkgs-fmt.enable = true;
+              };
+
+              packages = with pkgs; [
+                golangci-lint
+              ];
+
+              # https://github.com/cachix/devenv/issues/528#issuecomment-1556108767
+              containers = pkgs.lib.mkForce { };
+            };
+
+            ci = devenv.shells.default;
+          };
+        };
+    };
+}

vendor/github.com/go-viper/mapstructure/v2/internal/errors/errors.go

@@ -0,0 +1,11 @@
+package errors
+
+import "errors"
+
+func New(text string) error {
+	return errors.New(text)
+}
+
+func As(err error, target interface{}) bool {
+	return errors.As(err, target)
+}

vendor/github.com/go-viper/mapstructure/v2/internal/errors/join.go

@@ -0,0 +1,9 @@
+//go:build go1.20
+
+package errors
+
+import "errors"
+
+func Join(errs ...error) error {
+	return errors.Join(errs...)
+}

vendor/github.com/go-viper/mapstructure/v2/internal/errors/join_go1_19.go

@@ -0,0 +1,61 @@
+//go:build !go1.20
+
+// Copyright 2022 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package errors
+
+// Join returns an error that wraps the given errors.
+// Any nil error values are discarded.
+// Join returns nil if every value in errs is nil.
+// The error formats as the concatenation of the strings obtained
+// by calling the Error method of each element of errs, with a newline
+// between each string.
+//
+// A non-nil error returned by Join implements the Unwrap() []error method.
+func Join(errs ...error) error {
+	n := 0
+	for _, err := range errs {
+		if err != nil {
+			n++
+		}
+	}
+	if n == 0 {
+		return nil
+	}
+	e := &joinError{
+		errs: make([]error, 0, n),
+	}
+	for _, err := range errs {
+		if err != nil {
+			e.errs = append(e.errs, err)
+		}
+	}
+	return e
+}
+
+type joinError struct {
+	errs []error
+}
+
+func (e *joinError) Error() string {
+	// Since Join returns nil if every value in errs is nil,
+	// e.errs cannot be empty.
+	if len(e.errs) == 1 {
+		return e.errs[0].Error()
+	}
+
+	b := []byte(e.errs[0].Error())
+	for _, err := range e.errs[1:] {
+		b = append(b, '\n')
+		b = append(b, err.Error()...)
+	}
+	// At this point, b has at least one byte '\n'.
+	// return unsafe.String(&b[0], len(b))
+	return string(b)
+}
+
+func (e *joinError) Unwrap() []error {
+	return e.errs
+}

vendor/github.com/go-viper/mapstructure/v2/reflect_go1_19.go

@@ -0,0 +1,44 @@
+//go:build !go1.20
+
+package mapstructure
+
+import "reflect"
+
+func isComparable(v reflect.Value) bool {
+	k := v.Kind()
+	switch k {
+	case reflect.Invalid:
+		return false
+
+	case reflect.Array:
+		switch v.Type().Elem().Kind() {
+		case reflect.Interface, reflect.Array, reflect.Struct:
+			for i := 0; i < v.Type().Len(); i++ {
+				// if !v.Index(i).Comparable() {
+				if !isComparable(v.Index(i)) {
+					return false
+				}
+			}
+			return true
+		}
+		return v.Type().Comparable()
+
+	case reflect.Interface:
+		// return v.Elem().Comparable()
+		return isComparable(v.Elem())
+
+	case reflect.Struct:
+		for i := 0; i < v.NumField(); i++ {
+			return false
+
+			// if !v.Field(i).Comparable() {
+			if !isComparable(v.Field(i)) {
+				return false
+			}
+		}
+		return true
+
+	default:
+		return v.Type().Comparable()
+	}
+}

vendor/github.com/go-viper/mapstructure/v2/reflect_go1_20.go

@@ -0,0 +1,10 @@
+//go:build go1.20
+
+package mapstructure
+
+import "reflect"
+
+// TODO: remove once we drop support for Go <1.20
+func isComparable(v reflect.Value) bool {
+	return v.Comparable()
+}