Bump golang from 1.24-alpine to 1.25-alpine (#454)

Bumps golang from 1.24-alpine to 1.25-alpine.

---
updated-dependencies:
- dependency-name: golang
  dependency-version: 1.25-alpine
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.23-alpine as builder
+FROM golang:1.25-alpine as builder
 
 WORKDIR /app
 COPY go.* .
@@ -6,7 +6,7 @@ RUN go mod download
 COPY . .
 RUN go build
 
-FROM restic/restic:0.17.1
+FROM restic/restic:0.17.3
 RUN apk add --no-cache rclone bash curl docker-cli
 COPY --from=builder /app/autorestic /usr/bin/autorestic
 ENTRYPOINT []

cmd/backup.go

@@ -18,9 +18,11 @@ var backupCmd = &cobra.Command{
 		err := lock.Lock()
 		CheckErr(err)
 		defer lock.Unlock()
+		dry, _ := cmd.Flags().GetBool("dry-run")
 
 		selected, err := internal.GetAllOrSelected(cmd, false)
 		CheckErr(err)
+
 		errors := 0
 		for _, name := range selected {
 			var splitted = strings.Split(name, "@")
@@ -29,7 +31,7 @@ var backupCmd = &cobra.Command{
 				specificBackend = splitted[1]
 			}
 			location, _ := internal.GetLocation(splitted[0])
-			errs := location.Backup(false, specificBackend)
+			errs := location.Backup(false, dry, specificBackend)
 			for _, err := range errs {
 				colors.Error.Printf("%s\n\n", err)
 				errors++
@@ -44,4 +46,5 @@ var backupCmd = &cobra.Command{
 func init() {
 	rootCmd.AddCommand(backupCmd)
 	internal.AddFlagsToCommand(backupCmd, false)
+	backupCmd.Flags().Bool("dry-run", false, "do not write changes, show what would be affected")
 }

docs/pages/cli/backup.md

@@ -1,11 +1,14 @@
 # Backup
 
 ```bash
-autorestic backup [-l, --location] [-a, --all]
+autorestic backup [-l, --location] [-a, --all] [--dry-run]
 ```
 
 Performs a backup of all locations if the `-a` flag is passed. To only backup some locations pass one or more `-l` or `--location` flags.
 
+The `--dry-run` flag will do a dry run showing what would have been deleted, but won't touch the actual data.
+
+
 ```bash
 # All
 autorestic backup -a

internal/backend.go

@@ -14,19 +14,19 @@ import (
 )
 
 type BackendRest struct {
-	User     string `mapstructure:"user,omitempty"`
-	Password string `mapstructure:"password,omitempty"`
+	User     string `mapstructure:"user,omitempty" yaml:"user,omitempty"`
+	Password string `mapstructure:"password,omitempty" yaml:"password,omitempty"`
 }
 
 type Backend struct {
 	name       string
-	Type       string            `mapstructure:"type,omitempty"`
-	Path       string            `mapstructure:"path,omitempty"`
-	Key        string            `mapstructure:"key,omitempty"`
-	RequireKey bool              `mapstructure:"requireKey,omitempty"`
-	Env        map[string]string `mapstructure:"env,omitempty"`
-	Rest       BackendRest       `mapstructure:"rest,omitempty"`
-	Options    Options           `mapstructure:"options,omitempty"`
+	Type       string            `mapstructure:"type,omitempty" yaml:"type,omitempty"`
+	Path       string            `mapstructure:"path,omitempty" yaml:"path,omitempty"`
+	Key        string            `mapstructure:"key,omitempty" yaml:"key,omitempty"`
+	RequireKey bool              `mapstructure:"requireKey,omitempty" yaml:"requireKey,omitempty"`
+	Env        map[string]string `mapstructure:"env,omitempty" yaml:"env,omitempty"`
+	Rest       BackendRest       `mapstructure:"rest,omitempty" yaml:"rest,omitempty"`
+	Options    Options           `mapstructure:"options,omitempty" yaml:"options,omitempty"`
 }
 
 func GetBackend(name string) (Backend, bool) {

internal/config.go

@@ -23,11 +23,11 @@ type OptionMap map[string][]interface{}
 type Options map[string]OptionMap
 
 type Config struct {
-	Version   string              `mapstructure:"version"`
-	Extras    interface{}         `mapstructure:"extras"`
-	Locations map[string]Location `mapstructure:"locations"`
-	Backends  map[string]Backend  `mapstructure:"backends"`
-	Global    Options             `mapstructure:"global"`
+	Version   string              `mapstructure:"version" yaml:"version"`
+	Extras    interface{}         `mapstructure:"extras" yaml:"extras"`
+	Locations map[string]Location `mapstructure:"locations" yaml:"locations"`
+	Backends  map[string]Backend  `mapstructure:"backends" yaml:"backends"`
+	Global    Options             `mapstructure:"global" yaml:"global"`
 }
 
 var once sync.Once
@@ -188,15 +188,31 @@ func CheckConfig() error {
 	if !CheckIfResticIsCallable() {
 		return fmt.Errorf(`%s was not found. Install either with "autorestic install" or manually`, flags.RESTIC_BIN)
 	}
-	for name, backend := range c.Backends {
-		backend.name = name
-		if err := backend.validate(); err != nil {
+
+	cwd, _ := GetPathRelativeToConfig(".")
+	for name, location := range c.Locations {
+		location.name = name
+
+		// Hooks before location validation
+		options := ExecuteOptions{
+			Command: "bash",
+			Dir:     cwd,
+			Envs: map[string]string{
+				"AUTORESTIC_LOCATION": location.name,
+			},
+		}
+		if err := location.ExecuteHooks(location.Hooks.PreValidate, options); err != nil {
+			return err
+		}
+
+		if err := location.validate(); err != nil {
 			return err
 		}
 	}
-	for name, location := range c.Locations {
-		location.name = name
-		if err := location.validate(); err != nil {
+
+	for name, backend := range c.Backends {
+		backend.name = name
+		if err := backend.validate(); err != nil {
 			return err
 		}
 	}

internal/config_test.go

@@ -1,10 +1,15 @@
 package internal
 
 import (
+	"path"
 	"reflect"
 	"strconv"
 	"strings"
+	"sync"
 	"testing"
+
+	"github.com/spf13/viper"
+	"github.com/stretchr/testify/assert"
 )
 
 func TestOptionToString(t *testing.T) {
@@ -143,6 +148,48 @@ func TestGetOptionsMultipleKeys(t *testing.T) {
 	reflect.DeepEqual(result, expected)
 }
 
+func TestSaveConfigProducesReadableConfig(t *testing.T) {
+	workDir := t.TempDir()
+	viper.SetConfigFile(path.Join(workDir, ".autorestic.yml"))
+
+	// Required to appease the config reader
+	viper.Set("version", 2)
+
+	c := Config{
+		Version: "2",
+		Locations: map[string]Location{
+			"test": {
+				Type: "local",
+				name: "test",
+				From: []string{"in-dir"},
+				To:   []string{"test"},
+				// ForgetOption & ConfigOption have previously marshalled in a way that
+				// can't get read correctly
+				ForgetOption: "foo",
+				CopyOption:   map[string][]string{"foo": {"bar"}},
+			},
+		},
+		Backends: map[string]Backend{
+			"test": {
+				name: "test",
+				Type: "local",
+				Path: "backup-target",
+				Key:  "supersecret",
+			},
+		},
+	}
+
+	err := c.SaveConfig()
+	assert.NoError(t, err)
+
+	// Ensure we the config reading logic actually runs
+	config = nil
+	once = sync.Once{}
+	readConfig := GetConfig()
+	assert.NotNil(t, readConfig)
+	assert.Equal(t, c, *readConfig)
+}
+
 func assertEqual[T comparable](t testing.TB, result, expected T) {
 	t.Helper()
 

internal/location.go

@@ -34,26 +34,26 @@ const (
 )
 
 type Hooks struct {
-	Dir         string    `mapstructure:"dir"`
-	PreValidate HookArray `mapstructure:"prevalidate,omitempty"`
-	Before      HookArray `mapstructure:"before,omitempty"`
-	After       HookArray `mapstructure:"after,omitempty"`
-	Success     HookArray `mapstructure:"success,omitempty"`
-	Failure     HookArray `mapstructure:"failure,omitempty"`
+	Dir         string    `mapstructure:"dir" yaml:"dir"`
+	PreValidate HookArray `mapstructure:"prevalidate,omitempty" yaml:"prevalidate,omitempty"`
+	Before      HookArray `mapstructure:"before,omitempty" yaml:"before,omitempty"`
+	After       HookArray `mapstructure:"after,omitempty" yaml:"after,omitempty"`
+	Success     HookArray `mapstructure:"success,omitempty" yaml:"success,omitempty"`
+	Failure     HookArray `mapstructure:"failure,omitempty" yaml:"failure,omitempty"`
 }
 
 type LocationCopy = map[string][]string
 
 type Location struct {
-	name         string               `mapstructure:",omitempty"`
-	From         []string             `mapstructure:"from,omitempty"`
-	Type         string               `mapstructure:"type,omitempty"`
-	To           []string             `mapstructure:"to,omitempty"`
-	Hooks        Hooks                `mapstructure:"hooks,omitempty"`
-	Cron         string               `mapstructure:"cron,omitempty"`
-	Options      Options              `mapstructure:"options,omitempty"`
-	ForgetOption LocationForgetOption `mapstructure:"forget,omitempty"`
-	CopyOption   LocationCopy         `mapstructure:"copy,omitempty"`
+	name         string               `mapstructure:",omitempty" yaml:",omitempty"`
+	From         []string             `mapstructure:"from,omitempty" yaml:"from,omitempty"`
+	Type         string               `mapstructure:"type,omitempty" yaml:"type,omitempty"`
+	To           []string             `mapstructure:"to,omitempty" yaml:"to,omitempty"`
+	Hooks        Hooks                `mapstructure:"hooks,omitempty" yaml:"hooks,omitempty"`
+	Cron         string               `mapstructure:"cron,omitempty" yaml:"cron,omitempty"`
+	Options      Options              `mapstructure:"options,omitempty" yaml:"options,omitempty"`
+	ForgetOption LocationForgetOption `mapstructure:"forget,omitempty" yaml:"forget,omitempty"`
+	CopyOption   LocationCopy         `mapstructure:"copy,omitempty" yaml:"copy,omitempty"`
 }
 
 func GetLocation(name string) (Location, bool) {
@@ -168,7 +168,7 @@ func (l Location) getLocationTags() string {
 	return buildTag("location", l.name)
 }
 
-func (l Location) Backup(cron bool, specificBackend string) []error {
+func (l Location) Backup(cron bool, dry bool, specificBackend string) []error {
 	var errors []error
 	var backends []string
 	colors.PrimaryPrint("  Backing up location \"%s\"  ", l.name)
@@ -228,6 +228,9 @@ func (l Location) Backup(cron bool, specificBackend string) []error {
 		if cron {
 			cmd = append(cmd, "--tag", buildTag("cron"))
 		}
+		if dry {
+			cmd = append(cmd, "--dry-run")
+		}
 		cmd = append(cmd, "--tag", l.getLocationTags())
 		backupOptions := ExecuteOptions{
 			Envs: env,
@@ -447,7 +450,7 @@ func (l Location) RunCron() error {
 	now := time.Now()
 	if now.After(next) {
 		lock.SetCron(l.name, now.Unix())
-		errs := l.Backup(true, "")
+		errs := l.Backup(true, false, "")
 		if len(errs) > 0 {
 			return fmt.Errorf("Failed to backup location \"%s\":\n%w", l.name, errors.Join(errs...))
 		}