git/sequencer.h
Junio C Hamano bf10200871 Merge branch 'dl/merge-autostash'
"git merge" learns the "--autostash" option.

* dl/merge-autostash: (22 commits)
  pull: pass --autostash to merge
  t5520: make test_pull_autostash() accept expect_parent_num
  merge: teach --autostash option
  sequencer: implement apply_autostash_oid()
  sequencer: implement save_autostash()
  sequencer: unlink autostash in apply_autostash()
  sequencer: extract perform_autostash() from rebase
  rebase: generify create_autostash()
  rebase: extract create_autostash()
  reset: extract reset_head() from rebase
  rebase: generify reset_head()
  rebase: use apply_autostash() from sequencer.c
  sequencer: rename stash_sha1 to stash_oid
  sequencer: make apply_autostash() accept a path
  rebase: use read_oneliner()
  sequencer: make read_oneliner() extern
  sequencer: configurably warn on non-existent files
  sequencer: make read_oneliner() accept flags
  sequencer: make file exists check more efficient
  sequencer: stop leaking buf
  ...
2020-04-29 16:15:27 -07:00

231 lines
7.3 KiB
C

#ifndef SEQUENCER_H
#define SEQUENCER_H
#include "cache.h"
#include "strbuf.h"
#include "wt-status.h"
struct commit;
struct repository;
const char *git_path_commit_editmsg(void);
const char *rebase_path_todo(void);
const char *rebase_path_todo_backup(void);
const char *rebase_path_dropped(void);
#define APPEND_SIGNOFF_DEDUP (1u << 0)
enum replay_action {
REPLAY_REVERT,
REPLAY_PICK,
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;
/* Boolean options */
int edit;
int record_origin;
int no_commit;
int signoff;
int allow_ff;
int allow_rerere_auto;
int allow_empty;
int allow_empty_message;
int drop_redundant_commits;
int keep_redundant_commits;
int verbose;
int quiet;
int reschedule_failed_exec;
int mainline;
char *gpg_sign;
enum commit_msg_cleanup_mode default_msg_cleanup;
int explicit_cleanup;
/* Merge strategy */
char *strategy;
char **xopts;
size_t xopts_nr, xopts_alloc;
/* Used by fixup/squash */
struct strbuf current_fixups;
int current_fixup_count;
/* placeholder commit for -i --root */
struct object_id squash_onto;
int have_squash_onto;
/* Only used by REPLAY_NONE */
struct rev_info *revs;
};
#define REPLAY_OPTS_INIT { .action = -1, .current_fixups = STRBUF_INIT }
/*
* Note that ordering matters in this enum. Not only must it match the mapping
* of todo_command_info (in sequencer.c), it is also divided into several
* sections that matter. When adding new commands, make sure you add it in the
* right section.
*/
enum todo_command {
/* commands that handle commits */
TODO_PICK = 0,
TODO_REVERT,
TODO_EDIT,
TODO_REWORD,
TODO_FIXUP,
TODO_SQUASH,
/* commands that do something else than handling a single commit */
TODO_EXEC,
TODO_BREAK,
TODO_LABEL,
TODO_RESET,
TODO_MERGE,
/* commands that do nothing but are counted for reporting progress */
TODO_NOOP,
TODO_DROP,
/* comments (not counted for reporting progress) */
TODO_COMMENT
};
struct todo_item {
enum todo_command command;
struct commit *commit;
unsigned int flags;
int arg_len;
/* The offset of the command and its argument in the strbuf */
size_t offset_in_buf, arg_offset;
};
struct todo_list {
struct strbuf buf;
struct todo_item *items;
int nr, alloc, current;
int done_nr, total_nr;
struct stat_data stat;
};
#define TODO_LIST_INIT { STRBUF_INIT }
int todo_list_parse_insn_buffer(struct repository *r, char *buf,
struct todo_list *todo_list);
int todo_list_write_to_file(struct repository *r, struct todo_list *todo_list,
const char *file, const char *shortrevisions,
const char *shortonto, int num, unsigned flags);
void todo_list_release(struct todo_list *todo_list);
const char *todo_item_get_arg(struct todo_list *todo_list,
struct todo_item *item);
/* Call this to setup defaults before parsing command line options */
void sequencer_init_config(struct replay_opts *opts);
int sequencer_pick_revisions(struct repository *repo,
struct replay_opts *opts);
int sequencer_continue(struct repository *repo, struct replay_opts *opts);
int sequencer_rollback(struct repository *repo, struct replay_opts *opts);
int sequencer_skip(struct repository *repo, struct replay_opts *opts);
int sequencer_remove_state(struct replay_opts *opts);
#define TODO_LIST_KEEP_EMPTY (1U << 0)
#define TODO_LIST_SHORTEN_IDS (1U << 1)
#define TODO_LIST_ABBREVIATE_CMDS (1U << 2)
#define TODO_LIST_REBASE_MERGES (1U << 3)
/*
* When rebasing merges, commits that do have the base commit as ancestor
* ("cousins") are *not* rebased onto the new base by default. If those
* commits should be rebased onto the new base, this flag needs to be passed.
*/
#define TODO_LIST_REBASE_COUSINS (1U << 4)
#define TODO_LIST_APPEND_TODO_HELP (1U << 5)
/*
* When generating a script that rebases merges with `--root` *and* with
* `--onto`, we do not want to re-generate the root commits.
*/
#define TODO_LIST_ROOT_WITH_ONTO (1U << 6)
#define TODO_LIST_REAPPLY_CHERRY_PICKS (1U << 7)
int sequencer_make_script(struct repository *r, struct strbuf *out, int argc,
const char **argv, unsigned flags);
void todo_list_add_exec_commands(struct todo_list *todo_list,
struct string_list *commands);
int complete_action(struct repository *r, struct replay_opts *opts, unsigned flags,
const char *shortrevisions, const char *onto_name,
struct commit *onto, const char *orig_head, struct string_list *commands,
unsigned autosquash, struct todo_list *todo_list);
int todo_list_rearrange_squash(struct todo_list *todo_list);
/*
* Append a signoff to the commit message in "msgbuf". The ignore_footer
* parameter specifies the number of bytes at the end of msgbuf that should
* not be considered at all. I.e., they are not checked for existing trailers,
* and the new signoff will be spliced into the buffer before those bytes.
*/
void append_signoff(struct strbuf *msgbuf, size_t ignore_footer, unsigned flag);
void append_conflicts_hint(struct index_state *istate,
struct strbuf *msgbuf, enum commit_msg_cleanup_mode cleanup_mode);
enum commit_msg_cleanup_mode get_cleanup_mode(const char *cleanup_arg,
int use_editor);
void cleanup_message(struct strbuf *msgbuf,
enum commit_msg_cleanup_mode cleanup_mode, int verbose);
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(struct repository *r,
const struct commit *current_head,
const struct object_id *new_head);
void create_autostash(struct repository *r, const char *path,
const char *default_reflog_action);
int save_autostash(const char *path);
int apply_autostash(const char *path);
int apply_autostash_oid(const char *stash_oid);
#define SUMMARY_INITIAL_COMMIT (1 << 0)
#define SUMMARY_SHOW_AUTHOR_DATE (1 << 1)
void print_commit_summary(struct repository *repo,
const char *prefix,
const struct object_id *oid,
unsigned int flags);
#define READ_ONELINER_SKIP_IF_EMPTY (1 << 0)
#define READ_ONELINER_WARN_MISSING (1 << 1)
/*
* Reads a file that was presumably written by a shell script, i.e. with an
* end-of-line marker that needs to be stripped.
*
* Note that only the last end-of-line marker is stripped, consistent with the
* behavior of "$(cat path)" in a shell script.
*
* Returns 1 if the file was read, 0 if it could not be read or does not exist.
*/
int read_oneliner(struct strbuf *buf,
const char *path, unsigned flags);
int read_author_script(const char *path, char **name, char **email, char **date,
int allow_missing);
void parse_strategy_opts(struct replay_opts *opts, char *raw_opts);
int write_basic_state(struct replay_opts *opts, const char *head_name,
struct commit *onto, const char *orig_head);
void sequencer_post_commit_cleanup(struct repository *r, int verbose);
int sequencer_get_last_command(struct repository* r,
enum replay_action *action);
int sequencer_determine_whence(struct repository *r, enum commit_whence *whence);
#endif /* SEQUENCER_H */