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-rwxr-xr-xgit-mergetool.sh90
1 files changed, 84 insertions, 6 deletions
diff --git a/git-mergetool.sh b/git-mergetool.sh
index bacbda2bb7..3aab5aae84 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 $file"
else
if base_present; then
- echo "modified"
+ echo "modified file"
else
- echo "created"
+ echo "created file"
fi
fi
}
@@ -112,6 +119,67 @@ resolve_deleted_merge () {
done
}
+resolve_submodule_merge () {
+ while true; do
+ printf "Use (l)ocal or (r)emote, or (a)bort? "
+ read ans
+ case "$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")" : '\([^ ]*\) ')
@@ -139,13 +207,23 @@ 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 $1;}')
+ if is_submodule "$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" "$MERGED"
+
base_present && checkout_staged_file 1 "$MERGED" "$BASE"
local_present && checkout_staged_file 2 "$MERGED" "$LOCAL"
remote_present && checkout_staged_file 3 "$MERGED" "$REMOTE"