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authorPetr Baudis <pasky@ucw.cz>2013-06-28 17:05:32 +0200
committerJunio C Hamano <gitster@pobox.com>2013-07-01 14:23:24 -0700
commita73653130edd6a8977106d45a8092c09040f9132 (patch)
treec76de88cc20570b9555b6a41e3429deee29fd247 /git-stash.sh
parent26c986e118523fda4624cec8d14bb8a4a09fdd08 (diff)
downloadgit-a73653130edd6a8977106d45a8092c09040f9132.tar.gz
git stash: avoid data loss when "git stash save" kills a directory
"stash save" is about saving the local change to the working tree, but also about restoring the state of the last commit to the working tree. When a local change is to turn a non-directory to a directory, in order to restore the non-directory, everything in the directory needs to be removed. Which is fine when running "git stash save --include-untracked", but without that option, untracked, newly created files in the directory will have to be discarded, if the state you are restoring to has a non-directory at the same path as the directory. Introduce a safety valve to fail the operation in such case, using the "ls-files --killed" which was designed for this exact purpose. The "stash save" is stopped when untracked files need to be discarded because their leading path ceased to be a directory, and the user is required to pass --force to really have the data removed. Signed-off-by: Petr Baudis <pasky@ucw.cz> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'git-stash.sh')
-rwxr-xr-xgit-stash.sh12
1 files changed, 12 insertions, 0 deletions
diff --git a/git-stash.sh b/git-stash.sh
index 1e541a2125..85c9e2c081 100755
--- a/git-stash.sh
+++ b/git-stash.sh
@@ -195,6 +195,7 @@ save_stash () {
keep_index=
patch_mode=
untracked=
+ force=
while test $# != 0
do
case "$1" in
@@ -215,6 +216,9 @@ save_stash () {
-u|--include-untracked)
untracked=untracked
;;
+ -f|--force)
+ force=t
+ ;;
-a|--all)
untracked=all
;;
@@ -258,6 +262,14 @@ save_stash () {
say "$(gettext "No local changes to save")"
exit 0
fi
+ if test -z "$untracked$force" &&
+ test -n "$(git ls-files --killed | head -n 1)"
+ then
+ say "$(gettext "The following untracked files would NOT be saved but need to be removed by stash save:")"
+ test -n "$GIT_QUIET" || git ls-files --killed | sed 's/^/\t/'
+ say "$(gettext "Aborting. Consider using either the --force or --include-untracked option.")" >&2
+ exit 1
+ fi
test -f "$GIT_DIR/logs/$ref_stash" ||
clear_stash || die "$(gettext "Cannot initialize stash")"