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| author | Marc-André Lureau <marcandre.lureau@gmail.com> | 2013-01-06 15:45:49 +0100 |
|---|---|---|
| committer | Marc-André Lureau <marcandre.lureau@gmail.com> | 2013-01-06 16:38:27 +0100 |
| commit | 2fc5b35b79299e3ebd61b2d335ea8f4785473823 (patch) | |
| tree | facd6e60dce31753b317aa10ba696f82b6748b7e /build-aux/move-if-change | |
| parent | 36b14c8448e46e93cad7067d4249f2f005a7f6c7 (diff) | |
| download | msitools-2fc5b35b79299e3ebd61b2d335ea8f4785473823.tar.gz msitools-2fc5b35b79299e3ebd61b2d335ea8f4785473823.tar.xz msitools-2fc5b35b79299e3ebd61b2d335ea8f4785473823.zip | |
test: add autotest infrastructure
Diffstat (limited to 'build-aux/move-if-change')
| -rwxr-xr-x | build-aux/move-if-change | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/build-aux/move-if-change b/build-aux/move-if-change new file mode 100755 index 0000000..03dd02e --- /dev/null +++ b/build-aux/move-if-change @@ -0,0 +1,17 @@ +#!/bin/sh +# Like mv $1 $2, but if the files are the same, just delete $1. +# Status is zero if successful, nonzero otherwise. +# +# Copyright (C) 2011 Free Software Foundation, Inc. +# License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> +# This is free software: you are free to change and redistribute it. +# There is NO WARRANTY, to the extent permitted by law." + +if test -r "$2" && cmp -- "$1" "$2" >/dev/null; then + rm -f -- "$1" +else + if mv -f -- "$1" "$2"; then :; else + # Ignore failure due to a concurrent move-if-change. + test -r "$2" && cmp -- "$1" "$2" >/dev/null && rm -f -- "$1" + fi +fi |