diff options
-rwxr-xr-x | win32/ifchange.bat | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/win32/ifchange.bat b/win32/ifchange.bat index 24e4987c55..1444d1bc2f 100755 --- a/win32/ifchange.bat +++ b/win32/ifchange.bat @@ -2,6 +2,7 @@ :: usage: ifchange target temporary
set timestamp=
+set keepsuffix=
:optloop
for %%I in (%1) do set opt=%%~I
if "%opt%" == "--timestamp" (
@@ -12,6 +13,14 @@ if "%opt%" == "--timestamp" ( set timestamp=%opt:~12%
shift
goto :optloop
+) else if "%opt%" == "--keep" (
+ set keepsuffix=.old
+ shift
+ goto :optloop
+) else if "%opt:~0,7%" == "--keep=" (
+ set keepsuffix=%opt:~7%
+ shift
+ goto :optloop
)
if "%opt%" == "" goto :end
@@ -51,6 +60,7 @@ echo assuming %1 should be changed. echo %1 updated.
:: if exist %1 del %1
dir /b %2
+if "%keepsuffix%" != "" %1 %1%keepsuffix%
copy %2 %1
del %2
goto :end
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