mirror of
https://github.com/git/git.git
synced 2024-11-27 20:14:30 +08:00
b539c5e8fb
This does two things: - Use new --stage=2 option to create the working tree file with leading paths and correct permission bits using checkout-index, as before. - Make sure we do not confuse "merge" program when the file being merged has an unfortunate name, '-L'. Signed-off-by: Junio C Hamano <junkio@cox.net>
121 lines
2.7 KiB
Bash
Executable File
121 lines
2.7 KiB
Bash
Executable File
#!/bin/sh
|
|
#
|
|
# Copyright (c) Linus Torvalds, 2005
|
|
#
|
|
# This is the git per-file 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
|
|
# $5 - orignal file mode (or empty)
|
|
# $6 - file in branch1 mode (or empty)
|
|
# $7 - file in branch2 mode (or empty)
|
|
#
|
|
# Handle some trivial cases.. The _really_ trivial cases have
|
|
# been handled already by git-read-tree, but that one doesn't
|
|
# do any merges that might change the tree layout.
|
|
|
|
case "${1:-.}${2:-.}${3:-.}" in
|
|
#
|
|
# Deleted in both or deleted in one and unchanged in the other
|
|
#
|
|
"$1.." | "$1.$1" | "$1$1.")
|
|
if [ "$2" ]; then
|
|
echo "Removing $4"
|
|
fi
|
|
if test -f "$4"; then
|
|
rm -f -- "$4" &&
|
|
rmdir -p "$(expr "$4" : '\(.*\)/')" 2>/dev/null || :
|
|
fi &&
|
|
exec git-update-index --remove -- "$4"
|
|
;;
|
|
|
|
#
|
|
# Added in one.
|
|
#
|
|
".$2." | "..$3" )
|
|
echo "Adding $4"
|
|
git-update-index --add --cacheinfo "$6$7" "$2$3" "$4" &&
|
|
exec git-checkout-index -u -f -- "$4"
|
|
;;
|
|
|
|
#
|
|
# Added in both, identically (check for same permissions).
|
|
#
|
|
".$3$2")
|
|
if [ "$6" != "$7" ]; then
|
|
echo "ERROR: File $4 added identically in both branches,"
|
|
echo "ERROR: but permissions conflict $6->$7."
|
|
exit 1
|
|
fi
|
|
echo "Adding $4"
|
|
git-update-index --add --cacheinfo "$6" "$2" "$4" &&
|
|
exec git-checkout-index -u -f -- "$4"
|
|
;;
|
|
|
|
#
|
|
# Modified in both, but differently.
|
|
#
|
|
"$1$2$3" | ".$2$3")
|
|
|
|
case ",$6,$7," in
|
|
*,120000,*)
|
|
echo "ERROR: $4: Not merging symbolic link changes."
|
|
exit 1
|
|
;;
|
|
esac
|
|
|
|
src2=`git-unpack-file $3`
|
|
case "$1" in
|
|
'')
|
|
echo "Added $4 in both, but differently."
|
|
# This extracts OUR file in $orig, and uses git-apply to
|
|
# remove lines that are unique to ours.
|
|
orig=`git-unpack-file $2`
|
|
sz0=`wc -c <"$orig"`
|
|
diff -u -La/$orig -Lb/$orig $orig $src2 | git-apply --no-add
|
|
sz1=`wc -c <"$orig"`
|
|
|
|
# If we do not have enough common material, it is not
|
|
# worth trying two-file merge using common subsections.
|
|
expr "$sz0" \< "$sz1" \* 2 >/dev/null || : >$orig
|
|
;;
|
|
*)
|
|
echo "Auto-merging $4."
|
|
orig=`git-unpack-file $1`
|
|
;;
|
|
esac
|
|
|
|
# Be careful for funny filename such as "-L" in "$4", which
|
|
# would confuse "merge" greatly.
|
|
src1=`git-unpack-file $2`
|
|
merge "$src1" "$orig" "$src2"
|
|
ret=$?
|
|
|
|
# Create the working tree file, using "our tree" version from the
|
|
# index, and then store the result of the merge.
|
|
git-checkout-index -f --stage=2 -- "$4" && cat "$src1" >"$4"
|
|
rm -f -- "$orig" "$src1" "$src2"
|
|
|
|
if [ "$6" != "$7" ]; then
|
|
echo "ERROR: Permissions conflict: $5->$6,$7."
|
|
ret=1
|
|
fi
|
|
if [ "$1" = '' ]; then
|
|
ret=1
|
|
fi
|
|
|
|
if [ $ret -ne 0 ]; then
|
|
echo "ERROR: Merge conflict in $4."
|
|
exit 1
|
|
fi
|
|
exec git-update-index -- "$4"
|
|
;;
|
|
|
|
*)
|
|
echo "ERROR: $4: Not handling case $1 -> $2 -> $3"
|
|
;;
|
|
esac
|
|
exit 1
|