chore: move lockfile code to internal module

In a future commit, I'll need the lockfile code to access the config
file. This solves an import cycle.

cmd/backup.go

@@ -6,7 +6,6 @@ import (
 
 	"github.com/cupcakearmy/autorestic/internal"
 	"github.com/cupcakearmy/autorestic/internal/colors"
-	"github.com/cupcakearmy/autorestic/internal/lock"
 	"github.com/spf13/cobra"
 )
 
@@ -15,9 +14,9 @@ var backupCmd = &cobra.Command{
 	Short: "Create backups for given locations",
 	Run: func(cmd *cobra.Command, args []string) {
 		internal.GetConfig()
-		err := lock.Lock()
+		err := internal.Lock()
 		CheckErr(err)
-		defer lock.Unlock()
+		defer internal.Unlock()
 
 		selected, err := internal.GetAllOrSelected(cmd, false)
 		CheckErr(err)

cmd/check.go

@@ -3,7 +3,6 @@ package cmd
 import (
 	"github.com/cupcakearmy/autorestic/internal"
 	"github.com/cupcakearmy/autorestic/internal/colors"
-	"github.com/cupcakearmy/autorestic/internal/lock"
 	"github.com/spf13/cobra"
 )
 
@@ -12,9 +11,9 @@ var checkCmd = &cobra.Command{
 	Short: "Check if everything is setup",
 	Run: func(cmd *cobra.Command, args []string) {
 		internal.GetConfig()
-		err := lock.Lock()
+		err := internal.Lock()
 		CheckErr(err)
-		defer lock.Unlock()
+		defer internal.Unlock()
 
 		CheckErr(internal.CheckConfig())
 

cmd/cron.go

@@ -3,7 +3,6 @@ package cmd
 import (
 	"github.com/cupcakearmy/autorestic/internal"
 	"github.com/cupcakearmy/autorestic/internal/flags"
-	"github.com/cupcakearmy/autorestic/internal/lock"
 	"github.com/spf13/cobra"
 )
 
@@ -13,9 +12,9 @@ var cronCmd = &cobra.Command{
 	Long:  `Intended to be mainly triggered by an automated system like systemd or crontab. For each location checks if a cron backup is due and runs it.`,
 	Run: func(cmd *cobra.Command, args []string) {
 		internal.GetConfig()
-		err := lock.Lock()
+		err := internal.Lock()
 		CheckErr(err)
-		defer lock.Unlock()
+		defer internal.Unlock()
 
 		err = internal.RunCron()
 		CheckErr(err)

cmd/exec.go

@@ -5,7 +5,6 @@ import (
 
 	"github.com/cupcakearmy/autorestic/internal"
 	"github.com/cupcakearmy/autorestic/internal/colors"
-	"github.com/cupcakearmy/autorestic/internal/lock"
 	"github.com/spf13/cobra"
 )
 
@@ -14,9 +13,9 @@ var execCmd = &cobra.Command{
 	Short: "Execute arbitrary native restic commands for given backends",
 	Run: func(cmd *cobra.Command, args []string) {
 		internal.GetConfig()
-		err := lock.Lock()
+		err := internal.Lock()
 		CheckErr(err)
-		defer lock.Unlock()
+		defer internal.Unlock()
 
 		selected, err := internal.GetAllOrSelected(cmd, true)
 		CheckErr(err)

cmd/forget.go

@@ -2,7 +2,6 @@ package cmd
 
 import (
 	"github.com/cupcakearmy/autorestic/internal"
-	"github.com/cupcakearmy/autorestic/internal/lock"
 	"github.com/spf13/cobra"
 )
 
@@ -11,9 +10,9 @@ var forgetCmd = &cobra.Command{
 	Short: "Forget and optionally prune snapshots according the specified policies",
 	Run: func(cmd *cobra.Command, args []string) {
 		internal.GetConfig()
-		err := lock.Lock()
+		err := internal.Lock()
 		CheckErr(err)
-		defer lock.Unlock()
+		defer internal.Unlock()
 
 		selected, err := internal.GetAllOrSelected(cmd, false)
 		CheckErr(err)

cmd/restore.go

@@ -4,7 +4,6 @@ import (
 	"fmt"
 
 	"github.com/cupcakearmy/autorestic/internal"
-	"github.com/cupcakearmy/autorestic/internal/lock"
 	"github.com/spf13/cobra"
 )
 
@@ -14,9 +13,9 @@ var restoreCmd = &cobra.Command{
 	Args:  cobra.MaximumNArgs(1),
 	Run: func(cmd *cobra.Command, args []string) {
 		internal.GetConfig()
-		err := lock.Lock()
+		err := internal.Lock()
 		CheckErr(err)
-		defer lock.Unlock()
+		defer internal.Unlock()
 
 		location, _ := cmd.Flags().GetString("location")
 		l, ok := internal.GetLocation(location)

cmd/root.go

@@ -8,7 +8,6 @@ import (
 	"github.com/cupcakearmy/autorestic/internal"
 	"github.com/cupcakearmy/autorestic/internal/colors"
 	"github.com/cupcakearmy/autorestic/internal/flags"
-	"github.com/cupcakearmy/autorestic/internal/lock"
 	"github.com/spf13/cobra"
 
 	homedir "github.com/mitchellh/go-homedir"
@@ -18,7 +17,7 @@ import (
 func CheckErr(err error) {
 	if err != nil {
 		colors.Error.Fprintln(os.Stderr, "Error:", err)
-		lock.Unlock()
+		internal.Unlock()
 		os.Exit(1)
 	}
 }

cmd/unlock.go

@@ -9,7 +9,6 @@ import (
 
 	"github.com/cupcakearmy/autorestic/internal"
 	"github.com/cupcakearmy/autorestic/internal/colors"
-	"github.com/cupcakearmy/autorestic/internal/lock"
 	"github.com/spf13/cobra"
 )
 
@@ -33,7 +32,7 @@ To check you can run "ps aux | grep autorestic".`,
 			}
 		}
 
-		err := lock.Unlock()
+		err := internal.Unlock()
 		if err != nil {
 			colors.Error.Println("Could not unlock:", err)
 			return