touch: add recurse functionality - issue #5301

cmd/touch/touch.go

@@ -17,6 +17,7 @@ var (
 	notCreateNewFile bool
 	timeAsArgument   string
 	localTime        bool
+	recurse          bool
 )
 
 const (
@@ -31,6 +32,7 @@ func init() {
 	flags.BoolVarP(cmdFlags, &notCreateNewFile, "no-create", "C", false, "Do not create the file if it does not exist.")
 	flags.StringVarP(cmdFlags, &timeAsArgument, "timestamp", "t", "", "Use specified time instead of the current time of day.")
 	flags.BoolVarP(cmdFlags, &localTime, "localtime", "", false, "Use localtime for timestamp, not UTC.")
+	flags.BoolVarP(cmdFlags, &recurse, "recursive", "R", false, "Recurse into the listing.")
 }
 
 var commandDefinition = &cobra.Command{

cmd/touch/touch_test.go

@@ -117,3 +117,25 @@ func TestTouchCreateMultipleDirAndFile(t *testing.T) {
 	file1 := fstest.NewItem("a/b/c.txt", "", t1)
 	fstest.CheckListingWithPrecision(t, r.Fremote, []fstest.Item{file1}, []string{"a", "a/b"}, fs.ModTimeNotSupported)
 }
+
+func TestTouchRecursiveWithTimestamp(t *testing.T) {
+	r := fstest.NewRun(t)
+	defer r.Finalise()
+
+	timeAsArgument = "060102"
+	srcFileName := "oldFile"
+	err := TouchRecursive(context.Background(), r.Fremote, srcFileName)
+	require.NoError(t, err)
+	checkFile(t, r.Fremote, srcFileName, "")
+}
+
+func TestTouchRecursiveWithLongerTimestamp(t *testing.T) {
+	r := fstest.NewRun(t)
+	defer r.Finalise()
+
+	timeAsArgument = "2006-01-02T15:04:05"
+	srcFileName := "oldFile"
+	err := TouchRecursive(context.Background(), r.Fremote, srcFileName)
+	require.NoError(t, err)
+	checkFile(t, r.Fremote, srcFileName, "")
+}

docs/content/commands/rclone_touch.md

@@ -39,6 +39,7 @@ rclone touch remote:path [flags]
   -h, --help               help for touch
       --localtime          Use localtime for timestamp, not UTC.
   -C, --no-create          Do not create the file if it does not exist.
+  -R, --recursive          Recurse into the listing.
   -t, --timestamp string   Use specified time instead of the current time of day.
 ```
 

fs/operations/touch.go

@@ -0,0 +1,47 @@
+package operations
+
+import (
+	"context"
+	"fmt"
+	"log"
+	"path"
+	"sort"
+	"strings"
+
+	"github.com/pkg/errors"
+	"github.com/rclone/rclone/fs"
+	"github.com/rclone/rclone/fs/config"
+	"github.com/rclone/rclone/fs/hash"
+	"github.com/rclone/rclone/fs/walk"
+)
+
+// Recursively touch every file in fscr with time t
+func TouchRecursive(ctx context.Context, fsrc fs.Fs, t time.Time) (err error) {
+	timeAtr := time.Now()
+	if timeAsArgument != "" {
+		layout := defaultLayout
+		if len(timeAsArgument) == len(layoutDateWithTime) {
+			layout = layoutDateWithTime
+		} else if len(timeAsArgument) > len(layoutDateWithTime) {
+			layout = layoutDateWithTimeNano
+		}
+		var timeAtrFromFlags time.Time
+		if localTime {
+			timeAtrFromFlags, err = time.ParseInLocation(layout, timeAsArgument, time.Local)
+		} else {
+			timeAtrFromFlags, err = time.Parse(layout, timeAsArgument)
+		}
+		if err != nil {
+			return errors.Wrap(err, "failed to parse date/time argument")
+		}
+		timeAtr = timeAtrFromFlags
+	}
+
+	return operations.ListFn(ctx, fsrc, func(o fs.Object) {
+		err := o.SetModTime(ctx, timeAtr)
+		if err != nil {
+			err = fs.CountError(err)
+			fs.Errorf(o, "touch: couldn't set mod time %v", err)
+		}
+	})
+}