Merge branch 'pw/sequencer-in-process-commit'

The sequencer infrastructure is shared across "git cherry-pick",
"git rebase -i", etc., and has always spawned "git commit" when it
needs to create a commit.  It has been taught to do so internally,
when able, by reusing the codepath "git commit" itself uses, which
gives performance boost for a few tens of percents in some sample
scenarios.

* pw/sequencer-in-process-commit:
  sequencer: run 'prepare-commit-msg' hook
  t7505: add tests for cherry-pick and rebase -i/-p
  t7505: style fixes
  sequencer: assign only free()able strings to gpg_sign
  sequencer: improve config handling
  t3512/t3513: remove KNOWN_FAILURE_CHERRY_PICK_SEES_EMPTY_COMMIT=1
  sequencer: try to commit without forking 'git commit'
  sequencer: load commit related config
  sequencer: simplify adding Signed-off-by: trailer
  commit: move print_commit_summary() to libgit
  commit: move post-rewrite code to libgit
  Add a function to update HEAD after creating a commit
  commit: move empty message checks to libgit
  t3404: check intermediate squash messages

1 files changed, 25 insertions, 0 deletions

diff --git a/sequencer.h b/sequencer.h
index 81f6d7d393..e45b178dfc 100644
--- a/sequencer.h
+++ b/sequencer.h
@@ -1,6 +1,7 @@
 #ifndef SEQUENCER_H
 #define SEQUENCER_H
 
+const char *git_path_commit_editmsg(void);
 const char *git_path_seq_dir(void);
 
 #define APPEND_SIGNOFF_DEDUP (1u << 0)
@@ -11,6 +12,13 @@ enum replay_action {
 	REPLAY_INTERACTIVE_REBASE
 };
 
+enum commit_msg_cleanup_mode {
+	COMMIT_MSG_CLEANUP_SPACE,
+	COMMIT_MSG_CLEANUP_NONE,
+	COMMIT_MSG_CLEANUP_SCISSORS,
+	COMMIT_MSG_CLEANUP_ALL
+};
+
 struct replay_opts {
 	enum replay_action action;
 
@@ -29,6 +37,7 @@ struct replay_opts {
 	int mainline;
 
 	char *gpg_sign;
+	enum commit_msg_cleanup_mode default_msg_cleanup;
 
 	/* Merge strategy */
 	char *strategy;
@@ -40,6 +49,8 @@ struct replay_opts {
 };
 #define REPLAY_OPTS_INIT { -1 }
 
+/* Call this to setup defaults before parsing command line options */
+void sequencer_init_config(struct replay_opts *opts);
 int sequencer_pick_revisions(struct replay_opts *opts);
 int sequencer_continue(struct replay_opts *opts);
 int sequencer_rollback(struct replay_opts *opts);
@@ -61,5 +72,19 @@ extern const char sign_off_header[];
 
 void append_signoff(struct strbuf *msgbuf, int ignore_footer, unsigned flag);
 void append_conflicts_hint(struct strbuf *msgbuf);
+int message_is_empty(const struct strbuf *sb,
+		     enum commit_msg_cleanup_mode cleanup_mode);
+int template_untouched(const struct strbuf *sb, const char *template_file,
+		       enum commit_msg_cleanup_mode cleanup_mode);
+int update_head_with_reflog(const struct commit *old_head,
+			    const struct object_id *new_head,
+			    const char *action, const struct strbuf *msg,
+			    struct strbuf *err);
+void commit_post_rewrite(const struct commit *current_head,
+			 const struct object_id *new_head);
 
+#define SUMMARY_INITIAL_COMMIT   (1 << 0)
+#define SUMMARY_SHOW_AUTHOR_DATE (1 << 1)
+void print_commit_summary(const char *prefix, const struct object_id *oid,
+			  unsigned int flags);
 #endif