custom restic binary

cmd/root.go

@@ -37,6 +37,7 @@ func init() {
 	rootCmd.PersistentFlags().StringVarP(&cfgFile, "config", "c", "", "config file (default is $HOME/.autorestic.yml or ./.autorestic.yml)")
 	rootCmd.PersistentFlags().BoolVar(&internal.CI, "ci", false, "CI mode disabled interactive mode and colors and enables verbosity")
 	rootCmd.PersistentFlags().BoolVarP(&internal.VERBOSE, "verbose", "v", false, "verbose mode")
+	rootCmd.PersistentFlags().StringVar(&internal.RESTIC_BIN, "restic-bin", "restic", "specify custom restic binary")
 	cobra.OnInitialize(initConfig)
 }
 

docs/markdown/cli/general.md

@@ -27,4 +27,12 @@ Verbose mode will show the output of the native restic commands that are otherwi
 autorestic --verbose backup -a
 ```
 
+## `--restic-bin`
+
+With `--restic-bin` you can specify to run a specific restic binary. This can be useful if you want to [create a custom binary with root access that can be executed by any user](https://restic.readthedocs.io/en/stable/080_examples.html#full-backup-without-root).
+
+```bash
+autorestic --restic-bin /some/path/to/my/custom/restic/binary
+```
+
 > :ToCPrevNext

internal/config.go

@@ -129,7 +129,7 @@ func CheckConfig() error {
 		return fmt.Errorf("config could not be loaded/found")
 	}
 	if !CheckIfResticIsCallable() {
-		return fmt.Errorf(`restic was not found. Install either with "autorestic install" or manually`)
+		return fmt.Errorf(`%s was not found. Install either with "autorestic install" or manually`, RESTIC_BIN)
 	}
 	for name, backend := range c.Backends {
 		backend.name = name

internal/utils.go

@@ -10,13 +10,15 @@ import (
 	"github.com/cupcakearmy/autorestic/internal/colors"
 )
 
+var RESTIC_BIN string
+
 func CheckIfCommandIsCallable(cmd string) bool {
 	_, err := exec.LookPath(cmd)
 	return err == nil
 }
 
 func CheckIfResticIsCallable() bool {
-	return CheckIfCommandIsCallable("restic")
+	return CheckIfCommandIsCallable(RESTIC_BIN)
 }
 
 type ExecuteOptions struct {
@@ -50,7 +52,7 @@ func ExecuteCommand(options ExecuteOptions, args ...string) (string, error) {
 }
 
 func ExecuteResticCommand(options ExecuteOptions, args ...string) (string, error) {
-	options.Command = "restic"
+	options.Command = RESTIC_BIN
 	return ExecuteCommand(options, args...)
 }