rebase -i: handle "Nothing to do" case with autostash

When a user invokes

  $ git rebase -i @~3

with dirty files and rebase.autostash turned on, and exits the $EDITOR
with an empty buffer, the autostash fails to apply. Although the primary
focus of rr/rebase-autostash was to get the git-rebase--backend.sh
scripts to return control to git-rebase.sh, it missed this case in
git-rebase--interactive.sh. Since this case is unlike the other cases
which return control for housekeeping, assign it a special return status
and handle that return value explicitly in git-rebase.sh.

Reported-by: Karen Etheridge <ether@cpan.org>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/git-rebase--interactive.sh b/git-rebase--interactive.sh
index f953d8d..85f0e93 100644 (file)
--- a/git-rebase--interactive.sh
+++ b/git-rebase--interactive.sh
@@ -970,14 +970,14 @@ fi
 
 
 has_action "$todo" ||
-       die_abort "Nothing to do"
+       return 2
 
 cp "$todo" "$todo".backup
 git_sequence_editor "$todo" ||
        die_abort "Could not execute editor"
 
 has_action "$todo" ||
-       die_abort "Nothing to do"
+       return 2
 
 test -d "$rewritten" || test -n "$force_rebase" || skip_unnecessary_picks
 

diff --git a/git-rebase.sh b/git-rebase.sh
index a28209d..9eb276b 100755 (executable)
--- a/git-rebase.sh
+++ b/git-rebase.sh
@@ -147,7 +147,7 @@ move_to_original_branch () {
        esac
 }
 
-finish_rebase () {
+apply_autostash () {
        if test -f "$state_dir/autostash"
        then
                stash_sha1=$(cat "$state_dir/autostash")
@@ -166,6 +166,10 @@ You can run "git stash pop" or "git stash drop" at any time.
 '
                fi
        fi
+}
+
+finish_rebase () {
+       apply_autostash &&
        git gc --auto &&
        rm -rf "$state_dir"
 }
@@ -181,6 +185,11 @@ run_specific_rebase () {
        if test $ret -eq 0
        then
                finish_rebase
+       elif test $ret -eq 2 # special exit status for rebase -i
+       then
+               apply_autostash &&
+               rm -rf "$state_dir" &&
+               die "Nothing to do"
        fi
        exit $ret
 }