mirror of
https://github.com/git/git.git
synced 2024-11-30 21:44:02 +08:00
1cb4937395
The construct is error-prone; "test" being built-in in most modern shells, the reason to avoid "test <cond> && test <cond>" spawning one extra process by using a single "test <cond> -a <cond>" no longer exists. Signed-off-by: Elia Pinto <gitter.spiros@gmail.com> Reviewed-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
434 lines
8.4 KiB
Bash
Executable File
434 lines
8.4 KiB
Bash
Executable File
#!/bin/sh
|
|
#
|
|
# This program resolves merge conflicts in git
|
|
#
|
|
# Copyright (c) 2006 Theodore Y. Ts'o
|
|
#
|
|
# This file is licensed under the GPL v2, or a later version
|
|
# at the discretion of Junio C Hamano.
|
|
#
|
|
|
|
USAGE='[--tool=tool] [--tool-help] [-y|--no-prompt|--prompt] [file to merge] ...'
|
|
SUBDIRECTORY_OK=Yes
|
|
OPTIONS_SPEC=
|
|
TOOL_MODE=merge
|
|
. git-sh-setup
|
|
. git-mergetool--lib
|
|
require_work_tree
|
|
|
|
# Returns true if the mode reflects a symlink
|
|
is_symlink () {
|
|
test "$1" = 120000
|
|
}
|
|
|
|
is_submodule () {
|
|
test "$1" = 160000
|
|
}
|
|
|
|
local_present () {
|
|
test -n "$local_mode"
|
|
}
|
|
|
|
remote_present () {
|
|
test -n "$remote_mode"
|
|
}
|
|
|
|
base_present () {
|
|
test -n "$base_mode"
|
|
}
|
|
|
|
cleanup_temp_files () {
|
|
if test "$1" = --save-backup
|
|
then
|
|
rm -rf -- "$MERGED.orig"
|
|
test -e "$BACKUP" && mv -- "$BACKUP" "$MERGED.orig"
|
|
rm -f -- "$LOCAL" "$REMOTE" "$BASE"
|
|
else
|
|
rm -f -- "$LOCAL" "$REMOTE" "$BASE" "$BACKUP"
|
|
fi
|
|
}
|
|
|
|
describe_file () {
|
|
mode="$1"
|
|
branch="$2"
|
|
file="$3"
|
|
|
|
printf " {%s}: " "$branch"
|
|
if test -z "$mode"
|
|
then
|
|
echo "deleted"
|
|
elif is_symlink "$mode"
|
|
then
|
|
echo "a symbolic link -> '$(cat "$file")'"
|
|
elif is_submodule "$mode"
|
|
then
|
|
echo "submodule commit $file"
|
|
elif base_present
|
|
then
|
|
echo "modified file"
|
|
else
|
|
echo "created file"
|
|
fi
|
|
}
|
|
|
|
resolve_symlink_merge () {
|
|
while true
|
|
do
|
|
printf "Use (l)ocal or (r)emote, or (a)bort? "
|
|
read ans || return 1
|
|
case "$ans" in
|
|
[lL]*)
|
|
git checkout-index -f --stage=2 -- "$MERGED"
|
|
git add -- "$MERGED"
|
|
cleanup_temp_files --save-backup
|
|
return 0
|
|
;;
|
|
[rR]*)
|
|
git checkout-index -f --stage=3 -- "$MERGED"
|
|
git add -- "$MERGED"
|
|
cleanup_temp_files --save-backup
|
|
return 0
|
|
;;
|
|
[aA]*)
|
|
return 1
|
|
;;
|
|
esac
|
|
done
|
|
}
|
|
|
|
resolve_deleted_merge () {
|
|
while true
|
|
do
|
|
if base_present
|
|
then
|
|
printf "Use (m)odified or (d)eleted file, or (a)bort? "
|
|
else
|
|
printf "Use (c)reated or (d)eleted file, or (a)bort? "
|
|
fi
|
|
read ans || return 1
|
|
case "$ans" in
|
|
[mMcC]*)
|
|
git add -- "$MERGED"
|
|
cleanup_temp_files --save-backup
|
|
return 0
|
|
;;
|
|
[dD]*)
|
|
git rm -- "$MERGED" > /dev/null
|
|
cleanup_temp_files
|
|
return 0
|
|
;;
|
|
[aA]*)
|
|
return 1
|
|
;;
|
|
esac
|
|
done
|
|
}
|
|
|
|
resolve_submodule_merge () {
|
|
while true
|
|
do
|
|
printf "Use (l)ocal or (r)emote, or (a)bort? "
|
|
read ans || return 1
|
|
case "$ans" in
|
|
[lL]*)
|
|
if ! local_present
|
|
then
|
|
if test -n "$(git ls-tree HEAD -- "$MERGED")"
|
|
then
|
|
# Local isn't present, but it's a subdirectory
|
|
git ls-tree --full-name -r HEAD -- "$MERGED" |
|
|
git update-index --index-info || exit $?
|
|
else
|
|
test -e "$MERGED" && mv -- "$MERGED" "$BACKUP"
|
|
git update-index --force-remove "$MERGED"
|
|
cleanup_temp_files --save-backup
|
|
fi
|
|
elif is_submodule "$local_mode"
|
|
then
|
|
stage_submodule "$MERGED" "$local_sha1"
|
|
else
|
|
git checkout-index -f --stage=2 -- "$MERGED"
|
|
git add -- "$MERGED"
|
|
fi
|
|
return 0
|
|
;;
|
|
[rR]*)
|
|
if ! remote_present
|
|
then
|
|
if test -n "$(git ls-tree MERGE_HEAD -- "$MERGED")"
|
|
then
|
|
# Remote isn't present, but it's a subdirectory
|
|
git ls-tree --full-name -r MERGE_HEAD -- "$MERGED" |
|
|
git update-index --index-info || exit $?
|
|
else
|
|
test -e "$MERGED" && mv -- "$MERGED" "$BACKUP"
|
|
git update-index --force-remove "$MERGED"
|
|
fi
|
|
elif is_submodule "$remote_mode"
|
|
then
|
|
! is_submodule "$local_mode" &&
|
|
test -e "$MERGED" &&
|
|
mv -- "$MERGED" "$BACKUP"
|
|
stage_submodule "$MERGED" "$remote_sha1"
|
|
else
|
|
test -e "$MERGED" && mv -- "$MERGED" "$BACKUP"
|
|
git checkout-index -f --stage=3 -- "$MERGED"
|
|
git add -- "$MERGED"
|
|
fi
|
|
cleanup_temp_files --save-backup
|
|
return 0
|
|
;;
|
|
[aA]*)
|
|
return 1
|
|
;;
|
|
esac
|
|
done
|
|
}
|
|
|
|
stage_submodule () {
|
|
path="$1"
|
|
submodule_sha1="$2"
|
|
mkdir -p "$path" ||
|
|
die "fatal: unable to create directory for module at $path"
|
|
# Find $path relative to work tree
|
|
work_tree_root=$(cd_to_toplevel && pwd)
|
|
work_rel_path=$(cd "$path" &&
|
|
GIT_WORK_TREE="${work_tree_root}" git rev-parse --show-prefix
|
|
)
|
|
test -n "$work_rel_path" ||
|
|
die "fatal: unable to get path of module $path relative to work tree"
|
|
git update-index --add --replace --cacheinfo 160000 "$submodule_sha1" "${work_rel_path%/}" || die
|
|
}
|
|
|
|
checkout_staged_file () {
|
|
tmpfile=$(expr \
|
|
"$(git checkout-index --temp --stage="$1" "$2" 2>/dev/null)" \
|
|
: '\([^ ]*\) ')
|
|
|
|
if test $? -eq 0 && test -n "$tmpfile"
|
|
then
|
|
mv -- "$(git rev-parse --show-cdup)$tmpfile" "$3"
|
|
else
|
|
>"$3"
|
|
fi
|
|
}
|
|
|
|
merge_file () {
|
|
MERGED="$1"
|
|
|
|
f=$(git ls-files -u -- "$MERGED")
|
|
if test -z "$f"
|
|
then
|
|
if test ! -f "$MERGED"
|
|
then
|
|
echo "$MERGED: file not found"
|
|
else
|
|
echo "$MERGED: file does not need merging"
|
|
fi
|
|
return 1
|
|
fi
|
|
|
|
ext="$$$(expr "$MERGED" : '.*\(\.[^/]*\)$')"
|
|
BACKUP="./$MERGED.BACKUP.$ext"
|
|
LOCAL="./$MERGED.LOCAL.$ext"
|
|
REMOTE="./$MERGED.REMOTE.$ext"
|
|
BASE="./$MERGED.BASE.$ext"
|
|
|
|
base_mode=$(git ls-files -u -- "$MERGED" | awk '{if ($3==1) print $1;}')
|
|
local_mode=$(git ls-files -u -- "$MERGED" | awk '{if ($3==2) print $1;}')
|
|
remote_mode=$(git ls-files -u -- "$MERGED" | awk '{if ($3==3) print $1;}')
|
|
|
|
if is_submodule "$local_mode" || is_submodule "$remote_mode"
|
|
then
|
|
echo "Submodule merge conflict for '$MERGED':"
|
|
local_sha1=$(git ls-files -u -- "$MERGED" | awk '{if ($3==2) print $2;}')
|
|
remote_sha1=$(git ls-files -u -- "$MERGED" | awk '{if ($3==3) print $2;}')
|
|
describe_file "$local_mode" "local" "$local_sha1"
|
|
describe_file "$remote_mode" "remote" "$remote_sha1"
|
|
resolve_submodule_merge
|
|
return
|
|
fi
|
|
|
|
mv -- "$MERGED" "$BACKUP"
|
|
cp -- "$BACKUP" "$MERGED"
|
|
|
|
checkout_staged_file 1 "$MERGED" "$BASE"
|
|
checkout_staged_file 2 "$MERGED" "$LOCAL"
|
|
checkout_staged_file 3 "$MERGED" "$REMOTE"
|
|
|
|
if test -z "$local_mode" || test -z "$remote_mode"
|
|
then
|
|
echo "Deleted merge conflict for '$MERGED':"
|
|
describe_file "$local_mode" "local" "$LOCAL"
|
|
describe_file "$remote_mode" "remote" "$REMOTE"
|
|
resolve_deleted_merge
|
|
return
|
|
fi
|
|
|
|
if is_symlink "$local_mode" || is_symlink "$remote_mode"
|
|
then
|
|
echo "Symbolic link merge conflict for '$MERGED':"
|
|
describe_file "$local_mode" "local" "$LOCAL"
|
|
describe_file "$remote_mode" "remote" "$REMOTE"
|
|
resolve_symlink_merge
|
|
return
|
|
fi
|
|
|
|
echo "Normal merge conflict for '$MERGED':"
|
|
describe_file "$local_mode" "local" "$LOCAL"
|
|
describe_file "$remote_mode" "remote" "$REMOTE"
|
|
if test "$guessed_merge_tool" = true || test "$prompt" = true
|
|
then
|
|
printf "Hit return to start merge resolution tool (%s): " "$merge_tool"
|
|
read ans || return 1
|
|
fi
|
|
|
|
if base_present
|
|
then
|
|
present=true
|
|
else
|
|
present=false
|
|
fi
|
|
|
|
if ! run_merge_tool "$merge_tool" "$present"
|
|
then
|
|
echo "merge of $MERGED failed" 1>&2
|
|
mv -- "$BACKUP" "$MERGED"
|
|
|
|
if test "$merge_keep_temporaries" = "false"
|
|
then
|
|
cleanup_temp_files
|
|
fi
|
|
|
|
return 1
|
|
fi
|
|
|
|
if test "$merge_keep_backup" = "true"
|
|
then
|
|
mv -- "$BACKUP" "$MERGED.orig"
|
|
else
|
|
rm -- "$BACKUP"
|
|
fi
|
|
|
|
git add -- "$MERGED"
|
|
cleanup_temp_files
|
|
return 0
|
|
}
|
|
|
|
prompt=$(git config --bool mergetool.prompt)
|
|
guessed_merge_tool=false
|
|
|
|
while test $# != 0
|
|
do
|
|
case "$1" in
|
|
--tool-help)
|
|
show_tool_help
|
|
;;
|
|
-t|--tool*)
|
|
case "$#,$1" in
|
|
*,*=*)
|
|
merge_tool=$(expr "z$1" : 'z-[^=]*=\(.*\)')
|
|
;;
|
|
1,*)
|
|
usage ;;
|
|
*)
|
|
merge_tool="$2"
|
|
shift ;;
|
|
esac
|
|
;;
|
|
-y|--no-prompt)
|
|
prompt=false
|
|
;;
|
|
--prompt)
|
|
prompt=true
|
|
;;
|
|
--)
|
|
shift
|
|
break
|
|
;;
|
|
-*)
|
|
usage
|
|
;;
|
|
*)
|
|
break
|
|
;;
|
|
esac
|
|
shift
|
|
done
|
|
|
|
prompt_after_failed_merge () {
|
|
while true
|
|
do
|
|
printf "Continue merging other unresolved paths (y/n) ? "
|
|
read ans || return 1
|
|
case "$ans" in
|
|
[yY]*)
|
|
return 0
|
|
;;
|
|
[nN]*)
|
|
return 1
|
|
;;
|
|
esac
|
|
done
|
|
}
|
|
|
|
if test -z "$merge_tool"
|
|
then
|
|
# Check if a merge tool has been configured
|
|
merge_tool=$(get_configured_merge_tool)
|
|
# Try to guess an appropriate merge tool if no tool has been set.
|
|
if test -z "$merge_tool"
|
|
then
|
|
merge_tool=$(guess_merge_tool) || exit
|
|
guessed_merge_tool=true
|
|
fi
|
|
fi
|
|
merge_keep_backup="$(git config --bool mergetool.keepBackup || echo true)"
|
|
merge_keep_temporaries="$(git config --bool mergetool.keepTemporaries || echo false)"
|
|
|
|
last_status=0
|
|
rollup_status=0
|
|
files=
|
|
|
|
if test $# -eq 0
|
|
then
|
|
cd_to_toplevel
|
|
|
|
if test -e "$GIT_DIR/MERGE_RR"
|
|
then
|
|
files=$(git rerere remaining)
|
|
else
|
|
files=$(git ls-files -u | sed -e 's/^[^ ]* //' | sort -u)
|
|
fi
|
|
else
|
|
files=$(git ls-files -u -- "$@" | sed -e 's/^[^ ]* //' | sort -u)
|
|
fi
|
|
|
|
if test -z "$files"
|
|
then
|
|
echo "No files need merging"
|
|
exit 0
|
|
fi
|
|
|
|
printf "Merging:\n"
|
|
printf "%s\n" "$files"
|
|
|
|
IFS='
|
|
'
|
|
for i in $files
|
|
do
|
|
if test $last_status -ne 0
|
|
then
|
|
prompt_after_failed_merge || exit 1
|
|
fi
|
|
printf "\n"
|
|
merge_file "$i"
|
|
last_status=$?
|
|
if test $last_status -ne 0
|
|
then
|
|
rollup_status=1
|
|
fi
|
|
done
|
|
|
|
exit $rollup_status
|