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-rwxr-xr-xgit-mergetool.sh270
1 files changed, 176 insertions, 94 deletions
diff --git a/git-mergetool.sh b/git-mergetool.sh
index 332528ff45..c062e3de3a 100755
--- a/git-mergetool.sh
+++ b/git-mergetool.sh
@@ -3,18 +3,19 @@
# This program resolves merge conflicts in git
#
# Copyright (c) 2006 Theodore Y. Ts'o
+# Copyright (c) 2009-2016 David Aguilar
#
# 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] ...'
+USAGE='[--tool=tool] [--tool-help] [-y|--no-prompt|--prompt] [-O<orderfile>] [file to merge] ...'
SUBDIRECTORY_OK=Yes
+NONGIT_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 () {
@@ -37,6 +38,19 @@ base_present () {
test -n "$base_mode"
}
+mergetool_tmpdir_init () {
+ if test "$(git config --bool mergetool.writeToTemp)" != true
+ then
+ MERGETOOL_TMPDIR=.
+ return 0
+ fi
+ if MERGETOOL_TMPDIR=$(mktemp -d -t "git-mergetool-XXXXXX" 2>/dev/null)
+ then
+ return 0
+ fi
+ die "error: mktemp is needed when 'mergetool.writeToTemp' is true"
+}
+
cleanup_temp_files () {
if test "$1" = --save-backup
then
@@ -46,6 +60,10 @@ cleanup_temp_files () {
else
rm -f -- "$LOCAL" "$REMOTE" "$BASE" "$BACKUP"
fi
+ if test "$MERGETOOL_TMPDIR" != "."
+ then
+ rmdir "$MERGETOOL_TMPDIR"
+ fi
}
describe_file () {
@@ -109,7 +127,12 @@ resolve_deleted_merge () {
case "$ans" in
[mMcC]*)
git add -- "$MERGED"
- cleanup_temp_files --save-backup
+ if test "$merge_keep_backup" = "true"
+ then
+ cleanup_temp_files --save-backup
+ else
+ cleanup_temp_files
+ fi
return 0
;;
[dD]*)
@@ -118,6 +141,10 @@ resolve_deleted_merge () {
return 0
;;
[aA]*)
+ if test "$merge_keep_temporaries" = "false"
+ then
+ cleanup_temp_files
+ fi
return 1
;;
esac
@@ -205,7 +232,7 @@ checkout_staged_file () {
"$(git checkout-index --temp --stage="$1" "$2" 2>/dev/null)" \
: '\([^ ]*\) ')
- if test $? -eq 0 -a -n "$tmpfile"
+ if test $? -eq 0 && test -n "$tmpfile"
then
mv -- "$(git rev-parse --show-cdup)$tmpfile" "$3"
else
@@ -228,11 +255,27 @@ merge_file () {
return 1
fi
- ext="$$$(expr "$MERGED" : '.*\(\.[^/]*\)$')"
- BACKUP="./$MERGED.BACKUP.$ext"
- LOCAL="./$MERGED.LOCAL.$ext"
- REMOTE="./$MERGED.REMOTE.$ext"
- BASE="./$MERGED.BASE.$ext"
+ if BASE=$(expr "$MERGED" : '\(.*\)\.[^/]*$')
+ then
+ ext=$(expr "$MERGED" : '.*\(\.[^/]*\)$')
+ else
+ BASE=$MERGED
+ ext=
+ fi
+
+ mergetool_tmpdir_init
+
+ if test "$MERGETOOL_TMPDIR" != "."
+ then
+ # If we're using a temporary directory then write to the
+ # top-level of that directory.
+ BASE=${BASE##*/}
+ fi
+
+ BACKUP="$MERGETOOL_TMPDIR/${BASE}_BACKUP_$$$ext"
+ LOCAL="$MERGETOOL_TMPDIR/${BASE}_LOCAL_$$$ext"
+ REMOTE="$MERGETOOL_TMPDIR/${BASE}_REMOTE_$$$ext"
+ BASE="$MERGETOOL_TMPDIR/${BASE}_BASE_$$$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 $1;}')
@@ -249,20 +292,28 @@ merge_file () {
return
fi
- mv -- "$MERGED" "$BACKUP"
- cp -- "$BACKUP" "$MERGED"
+ if test -f "$MERGED"
+ then
+ mv -- "$MERGED" "$BACKUP"
+ cp -- "$BACKUP" "$MERGED"
+ fi
+ # Create a parent directory to handle delete/delete conflicts
+ # where the base's directory no longer exists.
+ mkdir -p "$(dirname "$MERGED")"
checkout_staged_file 1 "$MERGED" "$BASE"
checkout_staged_file 2 "$MERGED" "$LOCAL"
checkout_staged_file 3 "$MERGED" "$REMOTE"
- if test -z "$local_mode" -o -z "$remote_mode"
+ 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" "$REMOTE"
resolve_deleted_merge
- return
+ status=$?
+ rmdir -p "$(dirname "$MERGED")" 2>/dev/null
+ return $status
fi
if is_symlink "$local_mode" || is_symlink "$remote_mode"
@@ -277,7 +328,7 @@ merge_file () {
echo "Normal merge conflict for '$MERGED':"
describe_file "$local_mode" "local" "$LOCAL"
describe_file "$remote_mode" "remote" "$REMOTE"
- if "$prompt" = true
+ if test "$guessed_merge_tool" = true || test "$prompt" = true
then
printf "Hit return to start merge resolution tool (%s): " "$merge_tool"
read ans || return 1
@@ -315,50 +366,10 @@ merge_file () {
return 0
}
-prompt=$(git config --bool mergetool.prompt || echo true)
-
-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="$2"
- shift ;;
- esac
- ;;
- -y|--no-prompt)
- prompt=false
- ;;
- --prompt)
- prompt=true
- ;;
- --)
- shift
- break
- ;;
- -*)
- usage
- ;;
- *)
- break
- ;;
- esac
- shift
-done
-
prompt_after_failed_merge () {
while true
do
- printf "Continue merging other unresolved paths (y/n) ? "
+ printf "Continue merging other unresolved paths [y/n]? "
read ans || return 1
case "$ans" in
[yY]*)
@@ -371,55 +382,126 @@ prompt_after_failed_merge () {
done
}
-if test -z "$merge_tool"
-then
- merge_tool=$(get_merge_tool "$merge_tool") || exit
-fi
-merge_keep_backup="$(git config --bool mergetool.keepBackup || echo true)"
-merge_keep_temporaries="$(git config --bool mergetool.keepTemporaries || echo false)"
+print_noop_and_exit () {
+ echo "No files need merging"
+ exit 0
+}
-last_status=0
-rollup_status=0
-files=
+main () {
+ prompt=$(git config --bool mergetool.prompt)
+ guessed_merge_tool=false
+ orderfile=
-if test $# -eq 0
-then
- cd_to_toplevel
+ while test $# != 0
+ do
+ case "$1" in
+ --tool-help=*)
+ TOOL_MODE=${1#--tool-help=}
+ show_tool_help
+ ;;
+ --tool-help)
+ show_tool_help
+ ;;
+ -t|--tool*)
+ case "$#,$1" in
+ *,*=*)
+ merge_tool=$(expr "z$1" : 'z-[^=]*=\(.*\)')
+ ;;
+ 1,*)
+ usage ;;
+ *)
+ merge_tool="$2"
+ shift ;;
+ esac
+ ;;
+ -y|--no-prompt)
+ prompt=false
+ ;;
+ --prompt)
+ prompt=true
+ ;;
+ -O*)
+ orderfile="${1#-O}"
+ ;;
+ --)
+ shift
+ break
+ ;;
+ -*)
+ usage
+ ;;
+ *)
+ break
+ ;;
+ esac
+ shift
+ done
+
+ git_dir_init
+ require_work_tree
- if test -e "$GIT_DIR/MERGE_RR"
+ if test -z "$merge_tool"
then
- files=$(git rerere remaining)
- else
- files=$(git ls-files -u | sed -e 's/^[^ ]* //' | sort -u)
+ # 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=$(guess_merge_tool) || exit
+ guessed_merge_tool=true
+ fi
fi
-else
- files=$(git ls-files -u -- "$@" | sed -e 's/^[^ ]* //' | sort -u)
-fi
+ merge_keep_backup="$(git config --bool mergetool.keepBackup || echo true)"
+ merge_keep_temporaries="$(git config --bool mergetool.keepTemporaries || echo false)"
-if test -z "$files"
-then
- echo "No files need merging"
- exit 0
-fi
+ prefix=$(git rev-parse --show-prefix) || exit 1
+ cd_to_toplevel
-printf "Merging:\n"
-printf "%s\n" "$files"
+ if test -n "$orderfile"
+ then
+ orderfile=$(
+ git rev-parse --prefix "$prefix" -- "$orderfile" |
+ sed -e 1d
+ )
+ fi
-IFS='
-'
-for i in $files
-do
- if test $last_status -ne 0
+ if test $# -eq 0 && test -e "$GIT_DIR/MERGE_RR"
then
- prompt_after_failed_merge || exit 1
+ set -- $(git rerere remaining)
+ if test $# -eq 0
+ then
+ print_noop_and_exit
+ fi
+ elif test $# -ge 0
+ then
+ # rev-parse provides the -- needed for 'set'
+ eval "set $(git rev-parse --sq --prefix "$prefix" -- "$@")"
fi
- printf "\n"
- merge_file "$i"
- last_status=$?
- if test $last_status -ne 0
+
+ files=$(git -c core.quotePath=false \
+ diff --name-only --diff-filter=U \
+ ${orderfile:+"-O$orderfile"} -- "$@")
+
+ if test -z "$files"
then
- rollup_status=1
+ print_noop_and_exit
fi
-done
-exit $rollup_status
+ printf "Merging:\n"
+ printf "%s\n" "$files"
+
+ rc=0
+ for i in $files
+ do
+ printf "\n"
+ if ! merge_file "$i"
+ then
+ rc=1
+ prompt_after_failed_merge || exit 1
+ fi
+ done
+
+ exit $rc
+}
+
+main "$@"
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-29 09:57:52 +0000