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-rwxr-xr-xgit-mergetool.sh186
1 files changed, 123 insertions, 63 deletions
diff --git a/git-mergetool.sh b/git-mergetool.sh
index 2f8dc441c6..a9f23f7fcd 100755
--- a/git-mergetool.sh
+++ b/git-mergetool.sh
@@ -21,6 +21,10 @@ is_symlink () {
test "$1" = 120000
}
+is_submodule () {
+ test "$1" = 160000
+}
+
local_present () {
test -n "$local_mode"
}
@@ -35,7 +39,8 @@ base_present () {
cleanup_temp_files () {
if test "$1" = --save-backup ; then
- mv -- "$BACKUP" "$MERGED.orig"
+ rm -rf -- "$MERGED.orig"
+ test -e "$BACKUP" && mv -- "$BACKUP" "$MERGED.orig"
rm -f -- "$LOCAL" "$REMOTE" "$BASE"
else
rm -f -- "$LOCAL" "$REMOTE" "$BASE" "$BACKUP"
@@ -52,11 +57,13 @@ describe_file () {
echo "deleted"
elif is_symlink "$mode" ; then
echo "a symbolic link -> '$(cat "$file")'"
+ elif is_submodule "$mode" ; then
+ echo "submodule commit $file"
else
if base_present; then
- echo "modified"
+ echo "modified file"
else
- echo "created"
+ echo "created file"
fi
fi
}
@@ -65,7 +72,7 @@ describe_file () {
resolve_symlink_merge () {
while true; do
printf "Use (l)ocal or (r)emote, or (a)bort? "
- read ans
+ read ans || return 1
case "$ans" in
[lL]*)
git checkout-index -f --stage=2 -- "$MERGED"
@@ -93,7 +100,7 @@ resolve_deleted_merge () {
else
printf "Use (c)reated or (d)eleted file, or (a)bort? "
fi
- read ans
+ read ans || return 1
case "$ans" in
[mMcC]*)
git add -- "$MERGED"
@@ -112,11 +119,76 @@ resolve_deleted_merge () {
done
}
+resolve_submodule_merge () {
+ while true; do
+ printf "Use (l)ocal or (r)emote, or (a)bort? "
+ read ans || return 1
+ case "$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")" : '\([^ ]*\) ')
+ tmpfile=$(expr \
+ "$(git checkout-index --temp --stage="$1" "$2" 2>/dev/null)" \
+ : '\([^ ]*\) ')
if test $? -eq 0 -a -n "$tmpfile" ; then
mv -- "$(git rev-parse --show-cdup)$tmpfile" "$3"
+ else
+ >"$3"
fi
}
@@ -139,16 +211,26 @@ merge_file () {
REMOTE="./$MERGED.REMOTE.$ext"
BASE="./$MERGED.BASE.$ext"
- mv -- "$MERGED" "$BACKUP"
- cp -- "$BACKUP" "$MERGED"
-
base_mode=$(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 $1;}')
- base_present && checkout_staged_file 1 "$MERGED" "$BASE"
- local_present && checkout_staged_file 2 "$MERGED" "$LOCAL"
- remote_present && checkout_staged_file 3 "$MERGED" "$REMOTE"
+ if is_submodule "$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" -o -z "$remote_mode"; then
echo "Deleted merge conflict for '$MERGED':"
@@ -171,7 +253,7 @@ merge_file () {
describe_file "$remote_mode" "remote" "$REMOTE"
if "$prompt" = true; then
printf "Hit return to start merge resolution tool (%s): " "$merge_tool"
- read ans
+ read ans || return 1
fi
if base_present; then
@@ -242,7 +324,7 @@ done
prompt_after_failed_merge() {
while true; do
printf "Continue merging other unresolved paths (y/n) ? "
- read ans
+ read ans || return 1
case "$ans" in
[yY]*)
@@ -264,64 +346,42 @@ merge_keep_temporaries="$(git config --bool mergetool.keepTemporaries || echo fa
last_status=0
rollup_status=0
-rerere=false
-
-files_to_merge() {
- if test "$rerere" = true
- then
- git rerere status
- else
- git ls-files -u | sed -e 's/^[^ ]* //' | sort -u
- fi
-}
-
+files=
if test $# -eq 0 ; then
cd_to_toplevel
if test -e "$GIT_DIR/MERGE_RR"
then
- rerere=true
- fi
-
- files=$(files_to_merge)
- if test -z "$files" ; then
- echo "No files need merging"
- exit 0
+ 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
- # Save original stdin
- exec 3<&0
+if test -z "$files" ; then
+ echo "No files need merging"
+ exit 0
+fi
- printf "Merging:\n"
- printf "$files\n"
+printf "Merging:\n"
+printf "$files\n"
- files_to_merge |
- while IFS= read i
- do
- if test $last_status -ne 0; then
- prompt_after_failed_merge <&3 || exit 1
- fi
- printf "\n"
- merge_file "$i" <&3
- last_status=$?
- if test $last_status -ne 0; then
- rollup_status=1
- fi
- done
-else
- while test $# -gt 0; do
- if test $last_status -ne 0; then
- prompt_after_failed_merge || exit 1
- fi
- printf "\n"
- merge_file "$1"
- last_status=$?
- if test $last_status -ne 0; then
- rollup_status=1
- fi
- shift
- done
-fi
+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