apply: simplify build_fake_ancestor()

diff --git a/git-rebase--interactive.sh b/git-rebase--interactive.sh
index a09e8423ddb1d05c581ef72101c3f5201ce2eeb9..44901d53c43d972e03a71bfbe0b769f2e8f22d7b 100644 (file)
--- a/git-rebase--interactive.sh
+++ b/git-rebase--interactive.sh
@@ -115,6 +115,23 @@ mark_action_done () {
        fi
 }
 
+append_todo_help () {
+       cat >> "$todo" << EOF
+#
+# Commands:
+#  p, pick = use commit
+#  r, reword = use commit, but edit the commit message
+#  e, edit = use commit, but stop for amending
+#  s, squash = use commit, but meld into previous commit
+#  f, fixup = like "squash", but discard this commit's log message
+#  x, exec = run command (the rest of the line) using shell
+#
+# These lines can be re-ordered; they are executed from top to bottom.
+#
+# If you remove a line here THAT COMMIT WILL BE LOST.
+EOF
+}
+
 make_patch () {
        sha1_and_parents="$(git rev-list --parents -1 "$1")"
        case "$sha1_and_parents" in
@@ -544,6 +561,10 @@ do_next () {
                        warn
                        warn "  git rebase --continue"
                        warn
+                       if test $status -eq 127         # command not found
+                       then
+                               status=1
+                       fi
                        exit "$status"
                elif test "$dirty" = t
                then
@@ -558,11 +579,12 @@ do_next () {
                ;;
        *)
                warn "Unknown command: $command $sha1 $rest"
+               fixtodo="Please fix this using 'git rebase --edit-todo'."
                if git rev-parse --verify -q "$sha1" >/dev/null
                then
-                       die_with_patch $sha1 "Please fix this in the file $todo."
+                       die_with_patch $sha1 "$fixtodo"
                else
-                       die "Please fix this in the file $todo."
+                       die "$fixtodo"
                fi
                ;;
        esac
@@ -775,6 +797,23 @@ skip)
 
        do_rest
        ;;
+edit-todo)
+       sed -e '/^#/d' < "$todo" > "$todo".new
+       mv -f "$todo".new "$todo"
+       append_todo_help
+       cat >> "$todo" << EOF
+#
+# You are editing the todo file of an ongoing interactive rebase.
+# To continue rebase after editing, run:
+#     git rebase --continue
+#
+EOF
+
+       git_sequence_editor "$todo" ||
+               die "Could not execute editor"
+
+       exit
+       ;;
 esac
 
 git var GIT_COMMITTER_IDENT >/dev/null ||
@@ -901,18 +940,10 @@ test -n "$cmd" && add_exec_commands "$todo"
 cat >> "$todo" << EOF
 
 # Rebase $shortrevisions onto $shortonto
+EOF
+append_todo_help
+cat >> "$todo" << EOF
 #
-# Commands:
-#  p, pick = use commit
-#  r, reword = use commit, but edit the commit message
-#  e, edit = use commit, but stop for amending
-#  s, squash = use commit, but meld into previous commit
-#  f, fixup = like "squash", but discard this commit's log message
-#  x, exec = run command (the rest of the line) using shell
-#
-# These lines can be re-ordered; they are executed from top to bottom.
-#
-# If you remove a line here THAT COMMIT WILL BE LOST.
 # However, if you remove everything, the rebase will be aborted.
 #
 EOF