symbolic-ref --short: abbreviate the output unambiguously

diff --git a/git-rebase--interactive.sh b/git-rebase--interactive.sh
index 94f36c254c53366ba53d256c0bd50a1de07cdb85..5812222eb9afa2b2903040d7cf32ab0fb33c3508 100644 (file)
--- a/git-rebase--interactive.sh
+++ b/git-rebase--interactive.sh
@@ -143,6 +143,21 @@ die_with_patch () {
        die "$2"
 }
 
+exit_with_patch () {
+       echo "$1" > "$state_dir"/stopped-sha
+       make_patch $1
+       git rev-parse --verify HEAD > "$amend"
+       warn "You can amend the commit now, with"
+       warn
+       warn "  git commit --amend"
+       warn
+       warn "Once you are satisfied with your changes, run"
+       warn
+       warn "  git rebase --continue"
+       warn
+       exit $2
+}
+
 die_abort () {
        rm -rf "$state_dir"
        die "$1"
@@ -161,6 +176,19 @@ do_with_author () {
        )
 }
 
+git_sequence_editor () {
+       if test -z "$GIT_SEQUENCE_EDITOR"
+       then
+               GIT_SEQUENCE_EDITOR="$(git config sequence.editor)"
+               if [ -z "$GIT_SEQUENCE_EDITOR" ]
+               then
+                       GIT_SEQUENCE_EDITOR="$(git var GIT_EDITOR)" || return $?
+               fi
+       fi
+
+       eval "$GIT_SEQUENCE_EDITOR" '"$@"'
+}
+
 pick_one () {
        ff=--ff
        case "$1" in -n) sha1=$2; ff= ;; *) sha1=$1 ;; esac
@@ -395,7 +423,13 @@ do_next () {
                mark_action_done
                pick_one $sha1 ||
                        die_with_patch $sha1 "Could not apply $sha1... $rest"
-               git commit --amend --no-post-rewrite
+               git commit --amend --no-post-rewrite || {
+                       warn "Could not amend commit after successfully picking $sha1... $rest"
+                       warn "This is most likely due to an empty commit message, or the pre-commit hook"
+                       warn "failed. If the pre-commit hook failed, you may need to resolve the issue before"
+                       warn "you are able to reword the commit."
+                       exit_with_patch $sha1 1
+               }
                record_in_rewritten $sha1
                ;;
        edit|e)
@@ -404,19 +438,8 @@ do_next () {
                mark_action_done
                pick_one $sha1 ||
                        die_with_patch $sha1 "Could not apply $sha1... $rest"
-               echo "$sha1" > "$state_dir"/stopped-sha
-               make_patch $sha1
-               git rev-parse --verify HEAD > "$amend"
                warn "Stopped at $sha1... $rest"
-               warn "You can amend the commit now, with"
-               warn
-               warn "  git commit --amend"
-               warn
-               warn "Once you are satisfied with your changes, run"
-               warn
-               warn "  git rebase --continue"
-               warn
-               exit 0
+               exit_with_patch $sha1 0
                ;;
        squash|s|fixup|f)
                case "$command" in
@@ -832,7 +855,7 @@ has_action "$todo" ||
        die_abort "Nothing to do"
 
 cp "$todo" "$todo".backup
-git_editor "$todo" ||
+git_sequence_editor "$todo" ||
        die_abort "Could not execute editor"
 
 has_action "$todo" ||