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[PATCH] make file merging respect permissions

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1) permissions aren't respected in the merge script (primarily because
they're never passed in to it in the first place).  Fix that and also
check for permission conflicts in the merge

2) the delete of a file in both branches may indeed be just that, but it
could also be the indicator of a rename conflict (file moved to
different locations in both branches), so error out and ask the
committer for guidance.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
James Bottomley
2005-04-23 20:50:10 -07:00
committed by Linus Torvalds
parent 58e28af6a4
commit e2b6a9d0bf
2 changed files with 49 additions and 9 deletions
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47
git-merge-one-file-script
View File

@ -20,23 +20,45 @@ mkdir -p "$dir"
case "${1:-.}${2:-.}${3:-.}" in
#
# deleted in both, or deleted in one and unchanged in the other
# deleted in both
#
"$1..")
echo "ERROR: $4 is removed in both branches"
echo "ERROR: This is a potential rename conflict"
exit 1;;
#
# deleted in one and unchanged in the other
#
"$1.." | "$1.$1" | "$1$1.")
rm -f -- "$4"
echo "Removing $4"
update-cache --remove -- "$4"
exit 0
;;
#
# added in one, or added identically in both
# added in one
#
".$2." | "..$3" | ".$2$2")
mv $(unpack-file "${2:-$3}") $4
".$2." | "..$3" )
echo "Adding $4 with perm $6$7"
mv $(unpack-file "$2$3") $4
chmod "$6$7" $4
update-cache --add -- $4
exit 0
;;
#
# Added in both (check for same permissions)
#
".$2$2")
if [ "$6" != "$7" ]; then
echo "ERROR: File $4 added in both branches, permissions conflict $6->$7"
exit 1
fi
echo "Adding $4 with perm $6"
mv $(unpack-file "$2") $4
chmod "$6" $4
update-cache --add -- $4
exit 0;;
#
# Modified in both, but differently ;(
#
@ -46,11 +68,20 @@ case "${1:-.}${2:-.}${3:-.}" in
src1=$(unpack-file $2)
src2=$(unpack-file $3)
merge "$src2" "$orig" "$src1"
if [ $? -ne 0 ]; then
echo Leaving conflict merge in $src2
ret=$?
if [ "$6" != "$7" ]; then
echo "ERROR: Permissions $5->$6->$7 don't match merging $src2"
if [ $ret -ne 0 ]; then
echo "ERROR: Leaving conflict merge in $src2"
fi
exit 1
fi
cp "$src2" "$4" && update-cache --add -- "$4" && exit 0
chmod -- "$6" "$src2"
if [ $ret -ne 0 ]; then
echo "ERROR: Leaving conflict merge in $src2"
exit 1
fi
cp -- "$src2" "$4" && chmod -- "$6" "$4" && update-cache --add -- "$4" && exit 0
;;
*)