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|
#!/bin/sh
#
# This is the git merge script, called with
#
# $1 - original file SHA1 (or empty)
# $2 - file in branch1 SHA1 (or empty)
# $3 - file in branch2 SHA1 (or empty)
# $4 - pathname in repository
#
#
# Handle some trivial cases.. The _really_ trivial cases have
# been handled already by git-read-tree, but that one doesn't
# do any merges that migth change the tree layout
#
# if the directory is newly added in a branch, it might not exist
# in the current tree
dir=$(dirname "$4")
mkdir -p "$dir"
case "${1:-.}${2:-.}${3:-.}" in
#
# 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"
git-update-cache --remove -- "$4"
exit 0
;;
#
# added in one
#
".$2." | "..$3" )
echo "Adding $4 with perm $6$7"
mv $(git-unpack-file "$2$3") $4
chmod "$6$7" $4
git-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 $(git-unpack-file "$2") $4
chmod "$6" $4
git-update-cache --add -- $4
exit 0;;
#
# Modified in both, but differently ;(
#
"$1$2$3")
echo "Auto-merging $4"
orig=$(git-unpack-file $1)
src1=$(git-unpack-file $2)
src2=$(git-unpack-file $3)
merge "$src2" "$orig" "$src1"
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
chmod -- "$6" "$src2"
if [ $ret -ne 0 ]; then
echo "ERROR: Leaving conflict merge in $src2"
exit 1
fi
cp -- "$src2" "$4" && chmod -- "$6" "$4" && git-update-cache --add -- "$4" && exit 0
;;
*)
echo "Not handling case $1 -> $2 -> $3"
;;
esac
exit 1
|
