Merge 51a8298f2a into 8a773856de

Prior to this change, running the example from the docs without root privs produces this misleading/confusing output that claims that the software was installed when it wasn't:

```console
$ wget -qO - https://raw.githubusercontent.com/cupcakearmy/autorestic/master/install.sh | bash
linux
amd64
/usr/local/bin/autorestic.bz2: Permission denied
bzip2: Can't open input file /usr/local/bin/autorestic.bz2: No such file or directory.
chmod: cannot access '/usr/local/bin/autorestic': No such file or directory
bash: line 49: autorestic: command not found
Successfully installed autorestic
```

With this change, the errors stop the script much earlier and produce this output instead:

```
linux
amd64
/usr/local/bin/autorestic.bz2: Permission denied
```

cmd/root.go

@@ -42,6 +42,7 @@ func init() {
 	rootCmd.PersistentFlags().BoolVarP(&flags.VERBOSE, "verbose", "v", false, "verbose mode")
 	rootCmd.PersistentFlags().StringVar(&flags.RESTIC_BIN, "restic-bin", "restic", "specify custom restic binary")
 	rootCmd.PersistentFlags().StringVar(&flags.DOCKER_IMAGE, "docker-image", "cupcakearmy/autorestic:"+internal.VERSION, "specify a custom docker image")
+	rootCmd.PersistentFlags().StringVar(&flags.LOCKFILE_PATH, "lockfile-path", "", "specify a custom path for the lockfile (defaults to .autorestic.lock.yml next to the loaded autorestic config file)")
 	cobra.OnInitialize(initConfig)
 }
 

docs/pages/cli/general.md

@@ -34,3 +34,11 @@ With `--restic-bin` you can specify to run a specific restic binary. This can be
 ```bash
 autorestic --restic-bin /some/path/to/my/custom/restic/binary
 ```
+
+## `--lockfile-path`
+
+Specify the path for the lockfile used by `autorestic`. If omitted, this will default to `.autorestic.lock.yml` next to the loaded config file.
+
+```bash
+autorestic --lockfile-path /path/to/my/.autorestic.lock.yml
+```

install.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-
+set -e -o pipefail
 shopt -s nocaseglob
 
 OUT_FILE=/usr/local/bin/autorestic

internal/flags/flags.go

@@ -1,9 +1,10 @@
 package flags
 
 var (
-	CI         bool = false
+	CI            bool = false
-	VERBOSE    bool = false
+	VERBOSE       bool = false
-	CRON_LEAN  bool = false
+	CRON_LEAN     bool = false
-	RESTIC_BIN string
+	RESTIC_BIN    string
-	DOCKER_IMAGE string
+	DOCKER_IMAGE  string
+	LOCKFILE_PATH string
 )

internal/lock/lock.go

@@ -18,18 +18,28 @@ const (
 	RUNNING = "running"
 )
 
+// getLockfilePath returns the path to the lockfile. If flags.LOCKFILE_PATH is
+// set, its value is used, otherwise the path is generated relative to the
+// config file.
+func getLockfilePath() string {
+	if flags.LOCKFILE_PATH != "" {
+		return flags.LOCKFILE_PATH
+	} else {
+		p := viper.ConfigFileUsed()
+		if p == "" {
+			colors.Error.Println("cannot lock before reading config location")
+			os.Exit(1)
+		}
+		return path.Join(path.Dir(p), ".autorestic.lock.yml")
+	}
+}
+
 func getLock() *viper.Viper {
 	if lock == nil {
-
 		once.Do(func() {
 			lock = viper.New()
 			lock.SetDefault("running", false)
-			p := viper.ConfigFileUsed()
+			file = getLockfilePath()
-			if p == "" {
-				colors.Error.Println("cannot lock before reading config location")
-				os.Exit(1)
-			}
-			file = path.Join(path.Dir(p), ".autorestic.lock.yml")
 			if !flags.CRON_LEAN {
 				colors.Faint.Println("Using lock:\t", file)
 			}

internal/lock/lock_test.go

@@ -7,6 +7,7 @@ import (
 	"strconv"
 	"testing"
 
+	"github.com/cupcakearmy/autorestic/internal/flags"
 	"github.com/spf13/viper"
 )
 
@@ -28,6 +29,37 @@ func setup(t *testing.T) {
 	})
 }
 
+func TestGetLockfilePath(t *testing.T) {
+	t.Run("when flags.LOCKFILE_PATH is set", func(t *testing.T) {
+		flags.LOCKFILE_PATH = "/path/to/my/autorestic.lock.yml"
+		defer func() { flags.LOCKFILE_PATH = "" }()
+
+		p := getLockfilePath()
+
+		if p != "/path/to/my/autorestic.lock.yml" {
+			t.Errorf("got %v, want %v", p, "/path/to/my/autorestic.lock.yml")
+		}
+	})
+
+	t.Run("when flags.LOCKFILE_PATH is set", func(t *testing.T) {
+		d, err := os.MkdirTemp("", testDirectory)
+		if err != nil {
+			log.Fatalf("error creating temp dir: %v", err)
+			return
+		}
+		viper.SetConfigFile(d + "/.autorestic.yml")
+		defer viper.Reset()
+
+		flags.LOCKFILE_PATH = ""
+
+		p := getLockfilePath()
+
+		if p != d+"/.autorestic.lock.yml" {
+			t.Errorf("got %v, want %v", p, d+"/.autorestic.lock.yml")
+		}
+	})
+}
+
 func TestLock(t *testing.T) {
 	setup(t)