X-Git-Url: http://www.git.cypherpunks.ru/?a=blobdiff_plain;f=cleanup.go;h=61f028f2d56dc6d600a1146ff1ac7d640f5cef56;hb=fa0728d6bc790672982ba006961077371d2b552d;hp=f75788aae270780f69df8b567fad0c40ab5df6fb;hpb=edb601644735972fac3efcdc27849b5b9b1f5fb7;p=goredo.git

diff --git a/cleanup.go b/cleanup.go
index f75788a..61f028f 100644
--- a/cleanup.go
+++ b/cleanup.go
@@ -1,5 +1,5 @@
 /*
-goredo -- redo implementation on pure Go
+goredo -- djb's redo implementation on pure Go
 Copyright (C) 2020-2021 Sergey Matveev <stargrave@stargrave.org>
 
 This program is free software: you can redistribute it and/or modify
@@ -18,6 +18,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 package main
 
 import (
+	"flag"
 	"fmt"
 	"io"
 	"log"
@@ -33,6 +34,10 @@ const (
 	CleanupTmp  = "tmp"
 )
 
+var (
+	DryRun = flag.Bool("dry-run", false, "do no delete files during cleanup, just show them")
+)
+
 func redoDirClean(root, what string) error {
 	root, err := filepath.Abs(root)
 	if err != nil {
@@ -57,15 +62,19 @@ func redoDirClean(root, what string) error {
 			case CleanupLog:
 				if strings.HasSuffix(fi.Name(), LogSuffix) {
 					fmt.Println(pth)
-					if err = os.Remove(pth); err != nil {
-						return err
+					if !*DryRun {
+						if err = os.Remove(pth); err != nil {
+							return err
+						}
 					}
 				}
 			case CleanupTmp:
 				if strings.HasPrefix(fi.Name(), TmpPrefix) {
 					fmt.Println(pth)
-					if err = os.Remove(pth); err != nil {
-						return err
+					if !*DryRun {
+						if err = os.Remove(pth); err != nil {
+							return err
+						}
 					}
 				}
 			default:
@@ -101,7 +110,9 @@ func cleanupWalker(root, what string) error {
 				if fi.Name() == RedoDir {
 					if what == CleanupFull {
 						fmt.Println(pthRel)
-						err = os.RemoveAll(pth)
+						if !*DryRun {
+							err = os.RemoveAll(pth)
+						}
 					} else {
 						err = redoDirClean(pth, what)
 					}
@@ -116,8 +127,10 @@ func cleanupWalker(root, what string) error {
 			if (what == CleanupTmp || what == CleanupFull) &&
 				strings.HasPrefix(fi.Name(), TmpPrefix) {
 				fmt.Println(pthRel)
-				if err = os.Remove(pth); err != nil {
-					return err
+				if !*DryRun {
+					if err = os.Remove(pth); err != nil {
+						return err
+					}
 				}
 			}
 		}