mirror of
https://github.com/git/git
synced 2024-08-27 19:49:21 +00:00
![Junio C Hamano](/assets/img/avatar_default.png)
Update supporting parts of "git rebase" to remove code that should no longer be used. * js/rebase-cleanup: rebase: fold git-rebase--common into the -p backend sequencer: the `am` and `rebase--interactive` scripts are gone .gitignore: there is no longer a built-in `git-rebase--interactive` t3400: stop referring to the scripted rebase Drop unused git-rebase--am.sh
2151 lines
64 KiB
C
2151 lines
64 KiB
C
/*
|
|
* "git rebase" builtin command
|
|
*
|
|
* Copyright (c) 2018 Pratik Karki
|
|
*/
|
|
|
|
#define USE_THE_INDEX_COMPATIBILITY_MACROS
|
|
#include "builtin.h"
|
|
#include "run-command.h"
|
|
#include "exec-cmd.h"
|
|
#include "argv-array.h"
|
|
#include "dir.h"
|
|
#include "packfile.h"
|
|
#include "refs.h"
|
|
#include "quote.h"
|
|
#include "config.h"
|
|
#include "cache-tree.h"
|
|
#include "unpack-trees.h"
|
|
#include "lockfile.h"
|
|
#include "parse-options.h"
|
|
#include "commit.h"
|
|
#include "diff.h"
|
|
#include "wt-status.h"
|
|
#include "revision.h"
|
|
#include "commit-reach.h"
|
|
#include "rerere.h"
|
|
#include "branch.h"
|
|
#include "sequencer.h"
|
|
#include "rebase-interactive.h"
|
|
|
|
static char const * const builtin_rebase_usage[] = {
|
|
N_("git rebase [-i] [options] [--exec <cmd>] [--onto <newbase>] "
|
|
"[<upstream>] [<branch>]"),
|
|
N_("git rebase [-i] [options] [--exec <cmd>] [--onto <newbase>] "
|
|
"--root [<branch>]"),
|
|
N_("git rebase --continue | --abort | --skip | --edit-todo"),
|
|
NULL
|
|
};
|
|
|
|
static GIT_PATH_FUNC(path_squash_onto, "rebase-merge/squash-onto")
|
|
static GIT_PATH_FUNC(path_interactive, "rebase-merge/interactive")
|
|
static GIT_PATH_FUNC(apply_dir, "rebase-apply")
|
|
static GIT_PATH_FUNC(merge_dir, "rebase-merge")
|
|
|
|
enum rebase_type {
|
|
REBASE_UNSPECIFIED = -1,
|
|
REBASE_AM,
|
|
REBASE_MERGE,
|
|
REBASE_INTERACTIVE,
|
|
REBASE_PRESERVE_MERGES
|
|
};
|
|
|
|
struct rebase_options {
|
|
enum rebase_type type;
|
|
const char *state_dir;
|
|
struct commit *upstream;
|
|
const char *upstream_name;
|
|
const char *upstream_arg;
|
|
char *head_name;
|
|
struct object_id orig_head;
|
|
struct commit *onto;
|
|
const char *onto_name;
|
|
const char *revisions;
|
|
const char *switch_to;
|
|
int root;
|
|
struct object_id *squash_onto;
|
|
struct commit *restrict_revision;
|
|
int dont_finish_rebase;
|
|
enum {
|
|
REBASE_NO_QUIET = 1<<0,
|
|
REBASE_VERBOSE = 1<<1,
|
|
REBASE_DIFFSTAT = 1<<2,
|
|
REBASE_FORCE = 1<<3,
|
|
REBASE_INTERACTIVE_EXPLICIT = 1<<4,
|
|
} flags;
|
|
struct argv_array git_am_opts;
|
|
const char *action;
|
|
int signoff;
|
|
int allow_rerere_autoupdate;
|
|
int keep_empty;
|
|
int autosquash;
|
|
char *gpg_sign_opt;
|
|
int autostash;
|
|
char *cmd;
|
|
int allow_empty_message;
|
|
int rebase_merges, rebase_cousins;
|
|
char *strategy, *strategy_opts;
|
|
struct strbuf git_format_patch_opt;
|
|
int reschedule_failed_exec;
|
|
int use_legacy_rebase;
|
|
};
|
|
|
|
#define REBASE_OPTIONS_INIT { \
|
|
.type = REBASE_UNSPECIFIED, \
|
|
.flags = REBASE_NO_QUIET, \
|
|
.git_am_opts = ARGV_ARRAY_INIT, \
|
|
.git_format_patch_opt = STRBUF_INIT \
|
|
}
|
|
|
|
static struct replay_opts get_replay_opts(const struct rebase_options *opts)
|
|
{
|
|
struct replay_opts replay = REPLAY_OPTS_INIT;
|
|
|
|
replay.action = REPLAY_INTERACTIVE_REBASE;
|
|
sequencer_init_config(&replay);
|
|
|
|
replay.signoff = opts->signoff;
|
|
replay.allow_ff = !(opts->flags & REBASE_FORCE);
|
|
if (opts->allow_rerere_autoupdate)
|
|
replay.allow_rerere_auto = opts->allow_rerere_autoupdate;
|
|
replay.allow_empty = 1;
|
|
replay.allow_empty_message = opts->allow_empty_message;
|
|
replay.verbose = opts->flags & REBASE_VERBOSE;
|
|
replay.reschedule_failed_exec = opts->reschedule_failed_exec;
|
|
replay.gpg_sign = xstrdup_or_null(opts->gpg_sign_opt);
|
|
replay.strategy = opts->strategy;
|
|
if (opts->strategy_opts)
|
|
parse_strategy_opts(&replay, opts->strategy_opts);
|
|
|
|
return replay;
|
|
}
|
|
|
|
enum action {
|
|
ACTION_NONE = 0,
|
|
ACTION_CONTINUE,
|
|
ACTION_SKIP,
|
|
ACTION_ABORT,
|
|
ACTION_QUIT,
|
|
ACTION_EDIT_TODO,
|
|
ACTION_SHOW_CURRENT_PATCH,
|
|
ACTION_SHORTEN_OIDS,
|
|
ACTION_EXPAND_OIDS,
|
|
ACTION_CHECK_TODO_LIST,
|
|
ACTION_REARRANGE_SQUASH,
|
|
ACTION_ADD_EXEC
|
|
};
|
|
|
|
static const char *action_names[] = { "undefined",
|
|
"continue",
|
|
"skip",
|
|
"abort",
|
|
"quit",
|
|
"edit_todo",
|
|
"show_current_patch" };
|
|
|
|
static int add_exec_commands(struct string_list *commands)
|
|
{
|
|
const char *todo_file = rebase_path_todo();
|
|
struct todo_list todo_list = TODO_LIST_INIT;
|
|
int res;
|
|
|
|
if (strbuf_read_file(&todo_list.buf, todo_file, 0) < 0)
|
|
return error_errno(_("could not read '%s'."), todo_file);
|
|
|
|
if (todo_list_parse_insn_buffer(the_repository, todo_list.buf.buf,
|
|
&todo_list)) {
|
|
todo_list_release(&todo_list);
|
|
return error(_("unusable todo list: '%s'"), todo_file);
|
|
}
|
|
|
|
todo_list_add_exec_commands(&todo_list, commands);
|
|
res = todo_list_write_to_file(the_repository, &todo_list,
|
|
todo_file, NULL, NULL, -1, 0);
|
|
todo_list_release(&todo_list);
|
|
|
|
if (res)
|
|
return error_errno(_("could not write '%s'."), todo_file);
|
|
return 0;
|
|
}
|
|
|
|
static int rearrange_squash_in_todo_file(void)
|
|
{
|
|
const char *todo_file = rebase_path_todo();
|
|
struct todo_list todo_list = TODO_LIST_INIT;
|
|
int res = 0;
|
|
|
|
if (strbuf_read_file(&todo_list.buf, todo_file, 0) < 0)
|
|
return error_errno(_("could not read '%s'."), todo_file);
|
|
if (todo_list_parse_insn_buffer(the_repository, todo_list.buf.buf,
|
|
&todo_list)) {
|
|
todo_list_release(&todo_list);
|
|
return error(_("unusable todo list: '%s'"), todo_file);
|
|
}
|
|
|
|
res = todo_list_rearrange_squash(&todo_list);
|
|
if (!res)
|
|
res = todo_list_write_to_file(the_repository, &todo_list,
|
|
todo_file, NULL, NULL, -1, 0);
|
|
|
|
todo_list_release(&todo_list);
|
|
|
|
if (res)
|
|
return error_errno(_("could not write '%s'."), todo_file);
|
|
return 0;
|
|
}
|
|
|
|
static int transform_todo_file(unsigned flags)
|
|
{
|
|
const char *todo_file = rebase_path_todo();
|
|
struct todo_list todo_list = TODO_LIST_INIT;
|
|
int res;
|
|
|
|
if (strbuf_read_file(&todo_list.buf, todo_file, 0) < 0)
|
|
return error_errno(_("could not read '%s'."), todo_file);
|
|
|
|
if (todo_list_parse_insn_buffer(the_repository, todo_list.buf.buf,
|
|
&todo_list)) {
|
|
todo_list_release(&todo_list);
|
|
return error(_("unusable todo list: '%s'"), todo_file);
|
|
}
|
|
|
|
res = todo_list_write_to_file(the_repository, &todo_list, todo_file,
|
|
NULL, NULL, -1, flags);
|
|
todo_list_release(&todo_list);
|
|
|
|
if (res)
|
|
return error_errno(_("could not write '%s'."), todo_file);
|
|
return 0;
|
|
}
|
|
|
|
static int edit_todo_file(unsigned flags)
|
|
{
|
|
const char *todo_file = rebase_path_todo();
|
|
struct todo_list todo_list = TODO_LIST_INIT,
|
|
new_todo = TODO_LIST_INIT;
|
|
int res = 0;
|
|
|
|
if (strbuf_read_file(&todo_list.buf, todo_file, 0) < 0)
|
|
return error_errno(_("could not read '%s'."), todo_file);
|
|
|
|
strbuf_stripspace(&todo_list.buf, 1);
|
|
res = edit_todo_list(the_repository, &todo_list, &new_todo, NULL, NULL, flags);
|
|
if (!res && todo_list_write_to_file(the_repository, &new_todo, todo_file,
|
|
NULL, NULL, -1, flags & ~(TODO_LIST_SHORTEN_IDS)))
|
|
res = error_errno(_("could not write '%s'"), todo_file);
|
|
|
|
todo_list_release(&todo_list);
|
|
todo_list_release(&new_todo);
|
|
|
|
return res;
|
|
}
|
|
|
|
static int get_revision_ranges(struct commit *upstream, struct commit *onto,
|
|
const char **head_hash,
|
|
char **revisions, char **shortrevisions)
|
|
{
|
|
struct commit *base_rev = upstream ? upstream : onto;
|
|
const char *shorthead;
|
|
struct object_id orig_head;
|
|
|
|
if (get_oid("HEAD", &orig_head))
|
|
return error(_("no HEAD?"));
|
|
|
|
*head_hash = find_unique_abbrev(&orig_head, GIT_MAX_HEXSZ);
|
|
*revisions = xstrfmt("%s...%s", oid_to_hex(&base_rev->object.oid),
|
|
*head_hash);
|
|
|
|
shorthead = find_unique_abbrev(&orig_head, DEFAULT_ABBREV);
|
|
|
|
if (upstream) {
|
|
const char *shortrev;
|
|
|
|
shortrev = find_unique_abbrev(&base_rev->object.oid,
|
|
DEFAULT_ABBREV);
|
|
|
|
*shortrevisions = xstrfmt("%s..%s", shortrev, shorthead);
|
|
} else
|
|
*shortrevisions = xstrdup(shorthead);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int init_basic_state(struct replay_opts *opts, const char *head_name,
|
|
struct commit *onto, const char *orig_head)
|
|
{
|
|
FILE *interactive;
|
|
|
|
if (!is_directory(merge_dir()) && mkdir_in_gitdir(merge_dir()))
|
|
return error_errno(_("could not create temporary %s"), merge_dir());
|
|
|
|
delete_reflog("REBASE_HEAD");
|
|
|
|
interactive = fopen(path_interactive(), "w");
|
|
if (!interactive)
|
|
return error_errno(_("could not mark as interactive"));
|
|
fclose(interactive);
|
|
|
|
return write_basic_state(opts, head_name, onto, orig_head);
|
|
}
|
|
|
|
static void split_exec_commands(const char *cmd, struct string_list *commands)
|
|
{
|
|
if (cmd && *cmd) {
|
|
string_list_split(commands, cmd, '\n', -1);
|
|
|
|
/* rebase.c adds a new line to cmd after every command,
|
|
* so here the last command is always empty */
|
|
string_list_remove_empty_items(commands, 0);
|
|
}
|
|
}
|
|
|
|
static int do_interactive_rebase(struct rebase_options *opts, unsigned flags)
|
|
{
|
|
int ret;
|
|
const char *head_hash = NULL;
|
|
char *revisions = NULL, *shortrevisions = NULL;
|
|
struct argv_array make_script_args = ARGV_ARRAY_INIT;
|
|
struct todo_list todo_list = TODO_LIST_INIT;
|
|
struct replay_opts replay = get_replay_opts(opts);
|
|
struct string_list commands = STRING_LIST_INIT_DUP;
|
|
|
|
if (prepare_branch_to_be_rebased(the_repository, &replay,
|
|
opts->switch_to))
|
|
return -1;
|
|
|
|
if (get_revision_ranges(opts->upstream, opts->onto, &head_hash,
|
|
&revisions, &shortrevisions))
|
|
return -1;
|
|
|
|
if (init_basic_state(&replay,
|
|
opts->head_name ? opts->head_name : "detached HEAD",
|
|
opts->onto, head_hash)) {
|
|
free(revisions);
|
|
free(shortrevisions);
|
|
|
|
return -1;
|
|
}
|
|
|
|
if (!opts->upstream && opts->squash_onto)
|
|
write_file(path_squash_onto(), "%s\n",
|
|
oid_to_hex(opts->squash_onto));
|
|
|
|
argv_array_pushl(&make_script_args, "", revisions, NULL);
|
|
if (opts->restrict_revision)
|
|
argv_array_push(&make_script_args,
|
|
oid_to_hex(&opts->restrict_revision->object.oid));
|
|
|
|
ret = sequencer_make_script(the_repository, &todo_list.buf,
|
|
make_script_args.argc, make_script_args.argv,
|
|
flags);
|
|
|
|
if (ret)
|
|
error(_("could not generate todo list"));
|
|
else {
|
|
discard_cache();
|
|
if (todo_list_parse_insn_buffer(the_repository, todo_list.buf.buf,
|
|
&todo_list))
|
|
BUG("unusable todo list");
|
|
|
|
split_exec_commands(opts->cmd, &commands);
|
|
ret = complete_action(the_repository, &replay, flags,
|
|
shortrevisions, opts->onto_name, opts->onto, head_hash,
|
|
&commands, opts->autosquash, &todo_list);
|
|
}
|
|
|
|
string_list_clear(&commands, 0);
|
|
free(revisions);
|
|
free(shortrevisions);
|
|
todo_list_release(&todo_list);
|
|
argv_array_clear(&make_script_args);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int run_rebase_interactive(struct rebase_options *opts,
|
|
enum action command)
|
|
{
|
|
unsigned flags = 0;
|
|
int abbreviate_commands = 0, ret = 0;
|
|
|
|
git_config_get_bool("rebase.abbreviatecommands", &abbreviate_commands);
|
|
|
|
flags |= opts->keep_empty ? TODO_LIST_KEEP_EMPTY : 0;
|
|
flags |= abbreviate_commands ? TODO_LIST_ABBREVIATE_CMDS : 0;
|
|
flags |= opts->rebase_merges ? TODO_LIST_REBASE_MERGES : 0;
|
|
flags |= opts->rebase_cousins > 0 ? TODO_LIST_REBASE_COUSINS : 0;
|
|
flags |= command == ACTION_SHORTEN_OIDS ? TODO_LIST_SHORTEN_IDS : 0;
|
|
|
|
switch (command) {
|
|
case ACTION_NONE: {
|
|
if (!opts->onto && !opts->upstream)
|
|
die(_("a base commit must be provided with --upstream or --onto"));
|
|
|
|
ret = do_interactive_rebase(opts, flags);
|
|
break;
|
|
}
|
|
case ACTION_SKIP: {
|
|
struct string_list merge_rr = STRING_LIST_INIT_DUP;
|
|
|
|
rerere_clear(the_repository, &merge_rr);
|
|
}
|
|
/* fallthrough */
|
|
case ACTION_CONTINUE: {
|
|
struct replay_opts replay_opts = get_replay_opts(opts);
|
|
|
|
ret = sequencer_continue(the_repository, &replay_opts);
|
|
break;
|
|
}
|
|
case ACTION_EDIT_TODO:
|
|
ret = edit_todo_file(flags);
|
|
break;
|
|
case ACTION_SHOW_CURRENT_PATCH: {
|
|
struct child_process cmd = CHILD_PROCESS_INIT;
|
|
|
|
cmd.git_cmd = 1;
|
|
argv_array_pushl(&cmd.args, "show", "REBASE_HEAD", "--", NULL);
|
|
ret = run_command(&cmd);
|
|
|
|
break;
|
|
}
|
|
case ACTION_SHORTEN_OIDS:
|
|
case ACTION_EXPAND_OIDS:
|
|
ret = transform_todo_file(flags);
|
|
break;
|
|
case ACTION_CHECK_TODO_LIST:
|
|
ret = check_todo_list_from_file(the_repository);
|
|
break;
|
|
case ACTION_REARRANGE_SQUASH:
|
|
ret = rearrange_squash_in_todo_file();
|
|
break;
|
|
case ACTION_ADD_EXEC: {
|
|
struct string_list commands = STRING_LIST_INIT_DUP;
|
|
|
|
split_exec_commands(opts->cmd, &commands);
|
|
ret = add_exec_commands(&commands);
|
|
string_list_clear(&commands, 0);
|
|
break;
|
|
}
|
|
default:
|
|
BUG("invalid command '%d'", command);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static const char * const builtin_rebase_interactive_usage[] = {
|
|
N_("git rebase--interactive [<options>]"),
|
|
NULL
|
|
};
|
|
|
|
int cmd_rebase__interactive(int argc, const char **argv, const char *prefix)
|
|
{
|
|
struct rebase_options opts = REBASE_OPTIONS_INIT;
|
|
struct object_id squash_onto = null_oid;
|
|
enum action command = ACTION_NONE;
|
|
struct option options[] = {
|
|
OPT_NEGBIT(0, "ff", &opts.flags, N_("allow fast-forward"),
|
|
REBASE_FORCE),
|
|
OPT_BOOL(0, "keep-empty", &opts.keep_empty, N_("keep empty commits")),
|
|
OPT_BOOL(0, "allow-empty-message", &opts.allow_empty_message,
|
|
N_("allow commits with empty messages")),
|
|
OPT_BOOL(0, "rebase-merges", &opts.rebase_merges, N_("rebase merge commits")),
|
|
OPT_BOOL(0, "rebase-cousins", &opts.rebase_cousins,
|
|
N_("keep original branch points of cousins")),
|
|
OPT_BOOL(0, "autosquash", &opts.autosquash,
|
|
N_("move commits that begin with squash!/fixup!")),
|
|
OPT_BOOL(0, "signoff", &opts.signoff, N_("sign commits")),
|
|
OPT_BIT('v', "verbose", &opts.flags,
|
|
N_("display a diffstat of what changed upstream"),
|
|
REBASE_NO_QUIET | REBASE_VERBOSE | REBASE_DIFFSTAT),
|
|
OPT_CMDMODE(0, "continue", &command, N_("continue rebase"),
|
|
ACTION_CONTINUE),
|
|
OPT_CMDMODE(0, "skip", &command, N_("skip commit"), ACTION_SKIP),
|
|
OPT_CMDMODE(0, "edit-todo", &command, N_("edit the todo list"),
|
|
ACTION_EDIT_TODO),
|
|
OPT_CMDMODE(0, "show-current-patch", &command, N_("show the current patch"),
|
|
ACTION_SHOW_CURRENT_PATCH),
|
|
OPT_CMDMODE(0, "shorten-ids", &command,
|
|
N_("shorten commit ids in the todo list"), ACTION_SHORTEN_OIDS),
|
|
OPT_CMDMODE(0, "expand-ids", &command,
|
|
N_("expand commit ids in the todo list"), ACTION_EXPAND_OIDS),
|
|
OPT_CMDMODE(0, "check-todo-list", &command,
|
|
N_("check the todo list"), ACTION_CHECK_TODO_LIST),
|
|
OPT_CMDMODE(0, "rearrange-squash", &command,
|
|
N_("rearrange fixup/squash lines"), ACTION_REARRANGE_SQUASH),
|
|
OPT_CMDMODE(0, "add-exec-commands", &command,
|
|
N_("insert exec commands in todo list"), ACTION_ADD_EXEC),
|
|
{ OPTION_CALLBACK, 0, "onto", &opts.onto, N_("onto"), N_("onto"),
|
|
PARSE_OPT_NONEG, parse_opt_commit, 0 },
|
|
{ OPTION_CALLBACK, 0, "restrict-revision", &opts.restrict_revision,
|
|
N_("restrict-revision"), N_("restrict revision"),
|
|
PARSE_OPT_NONEG, parse_opt_commit, 0 },
|
|
{ OPTION_CALLBACK, 0, "squash-onto", &squash_onto, N_("squash-onto"),
|
|
N_("squash onto"), PARSE_OPT_NONEG, parse_opt_object_id, 0 },
|
|
{ OPTION_CALLBACK, 0, "upstream", &opts.upstream, N_("upstream"),
|
|
N_("the upstream commit"), PARSE_OPT_NONEG, parse_opt_commit,
|
|
0 },
|
|
OPT_STRING(0, "head-name", &opts.head_name, N_("head-name"), N_("head name")),
|
|
{ OPTION_STRING, 'S', "gpg-sign", &opts.gpg_sign_opt, N_("key-id"),
|
|
N_("GPG-sign commits"),
|
|
PARSE_OPT_OPTARG, NULL, (intptr_t) "" },
|
|
OPT_STRING(0, "strategy", &opts.strategy, N_("strategy"),
|
|
N_("rebase strategy")),
|
|
OPT_STRING(0, "strategy-opts", &opts.strategy_opts, N_("strategy-opts"),
|
|
N_("strategy options")),
|
|
OPT_STRING(0, "switch-to", &opts.switch_to, N_("switch-to"),
|
|
N_("the branch or commit to checkout")),
|
|
OPT_STRING(0, "onto-name", &opts.onto_name, N_("onto-name"), N_("onto name")),
|
|
OPT_STRING(0, "cmd", &opts.cmd, N_("cmd"), N_("the command to run")),
|
|
OPT_RERERE_AUTOUPDATE(&opts.allow_rerere_autoupdate),
|
|
OPT_BOOL(0, "reschedule-failed-exec", &opts.reschedule_failed_exec,
|
|
N_("automatically re-schedule any `exec` that fails")),
|
|
OPT_END()
|
|
};
|
|
|
|
opts.rebase_cousins = -1;
|
|
|
|
if (argc == 1)
|
|
usage_with_options(builtin_rebase_interactive_usage, options);
|
|
|
|
argc = parse_options(argc, argv, prefix, options,
|
|
builtin_rebase_interactive_usage, PARSE_OPT_KEEP_ARGV0);
|
|
|
|
if (!is_null_oid(&squash_onto))
|
|
opts.squash_onto = &squash_onto;
|
|
|
|
if (opts.rebase_cousins >= 0 && !opts.rebase_merges)
|
|
warning(_("--[no-]rebase-cousins has no effect without "
|
|
"--rebase-merges"));
|
|
|
|
return !!run_rebase_interactive(&opts, command);
|
|
}
|
|
|
|
static int is_interactive(struct rebase_options *opts)
|
|
{
|
|
return opts->type == REBASE_INTERACTIVE ||
|
|
opts->type == REBASE_PRESERVE_MERGES;
|
|
}
|
|
|
|
static void imply_interactive(struct rebase_options *opts, const char *option)
|
|
{
|
|
switch (opts->type) {
|
|
case REBASE_AM:
|
|
die(_("%s requires an interactive rebase"), option);
|
|
break;
|
|
case REBASE_INTERACTIVE:
|
|
case REBASE_PRESERVE_MERGES:
|
|
break;
|
|
case REBASE_MERGE:
|
|
/* we now implement --merge via --interactive */
|
|
default:
|
|
opts->type = REBASE_INTERACTIVE; /* implied */
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Returns the filename prefixed by the state_dir */
|
|
static const char *state_dir_path(const char *filename, struct rebase_options *opts)
|
|
{
|
|
static struct strbuf path = STRBUF_INIT;
|
|
static size_t prefix_len;
|
|
|
|
if (!prefix_len) {
|
|
strbuf_addf(&path, "%s/", opts->state_dir);
|
|
prefix_len = path.len;
|
|
}
|
|
|
|
strbuf_setlen(&path, prefix_len);
|
|
strbuf_addstr(&path, filename);
|
|
return path.buf;
|
|
}
|
|
|
|
/* Read one file, then strip line endings */
|
|
static int read_one(const char *path, struct strbuf *buf)
|
|
{
|
|
if (strbuf_read_file(buf, path, 0) < 0)
|
|
return error_errno(_("could not read '%s'"), path);
|
|
strbuf_trim_trailing_newline(buf);
|
|
return 0;
|
|
}
|
|
|
|
/* Initialize the rebase options from the state directory. */
|
|
static int read_basic_state(struct rebase_options *opts)
|
|
{
|
|
struct strbuf head_name = STRBUF_INIT;
|
|
struct strbuf buf = STRBUF_INIT;
|
|
struct object_id oid;
|
|
|
|
if (read_one(state_dir_path("head-name", opts), &head_name) ||
|
|
read_one(state_dir_path("onto", opts), &buf))
|
|
return -1;
|
|
opts->head_name = starts_with(head_name.buf, "refs/") ?
|
|
xstrdup(head_name.buf) : NULL;
|
|
strbuf_release(&head_name);
|
|
if (get_oid(buf.buf, &oid))
|
|
return error(_("could not get 'onto': '%s'"), buf.buf);
|
|
opts->onto = lookup_commit_or_die(&oid, buf.buf);
|
|
|
|
/*
|
|
* We always write to orig-head, but interactive rebase used to write to
|
|
* head. Fall back to reading from head to cover for the case that the
|
|
* user upgraded git with an ongoing interactive rebase.
|
|
*/
|
|
strbuf_reset(&buf);
|
|
if (file_exists(state_dir_path("orig-head", opts))) {
|
|
if (read_one(state_dir_path("orig-head", opts), &buf))
|
|
return -1;
|
|
} else if (read_one(state_dir_path("head", opts), &buf))
|
|
return -1;
|
|
if (get_oid(buf.buf, &opts->orig_head))
|
|
return error(_("invalid orig-head: '%s'"), buf.buf);
|
|
|
|
if (file_exists(state_dir_path("quiet", opts)))
|
|
opts->flags &= ~REBASE_NO_QUIET;
|
|
else
|
|
opts->flags |= REBASE_NO_QUIET;
|
|
|
|
if (file_exists(state_dir_path("verbose", opts)))
|
|
opts->flags |= REBASE_VERBOSE;
|
|
|
|
if (file_exists(state_dir_path("signoff", opts))) {
|
|
opts->signoff = 1;
|
|
opts->flags |= REBASE_FORCE;
|
|
}
|
|
|
|
if (file_exists(state_dir_path("allow_rerere_autoupdate", opts))) {
|
|
strbuf_reset(&buf);
|
|
if (read_one(state_dir_path("allow_rerere_autoupdate", opts),
|
|
&buf))
|
|
return -1;
|
|
if (!strcmp(buf.buf, "--rerere-autoupdate"))
|
|
opts->allow_rerere_autoupdate = RERERE_AUTOUPDATE;
|
|
else if (!strcmp(buf.buf, "--no-rerere-autoupdate"))
|
|
opts->allow_rerere_autoupdate = RERERE_NOAUTOUPDATE;
|
|
else
|
|
warning(_("ignoring invalid allow_rerere_autoupdate: "
|
|
"'%s'"), buf.buf);
|
|
}
|
|
|
|
if (file_exists(state_dir_path("gpg_sign_opt", opts))) {
|
|
strbuf_reset(&buf);
|
|
if (read_one(state_dir_path("gpg_sign_opt", opts),
|
|
&buf))
|
|
return -1;
|
|
free(opts->gpg_sign_opt);
|
|
opts->gpg_sign_opt = xstrdup(buf.buf);
|
|
}
|
|
|
|
if (file_exists(state_dir_path("strategy", opts))) {
|
|
strbuf_reset(&buf);
|
|
if (read_one(state_dir_path("strategy", opts), &buf))
|
|
return -1;
|
|
free(opts->strategy);
|
|
opts->strategy = xstrdup(buf.buf);
|
|
}
|
|
|
|
if (file_exists(state_dir_path("strategy_opts", opts))) {
|
|
strbuf_reset(&buf);
|
|
if (read_one(state_dir_path("strategy_opts", opts), &buf))
|
|
return -1;
|
|
free(opts->strategy_opts);
|
|
opts->strategy_opts = xstrdup(buf.buf);
|
|
}
|
|
|
|
strbuf_release(&buf);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rebase_write_basic_state(struct rebase_options *opts)
|
|
{
|
|
write_file(state_dir_path("head-name", opts), "%s",
|
|
opts->head_name ? opts->head_name : "detached HEAD");
|
|
write_file(state_dir_path("onto", opts), "%s",
|
|
opts->onto ? oid_to_hex(&opts->onto->object.oid) : "");
|
|
write_file(state_dir_path("orig-head", opts), "%s",
|
|
oid_to_hex(&opts->orig_head));
|
|
write_file(state_dir_path("quiet", opts), "%s",
|
|
opts->flags & REBASE_NO_QUIET ? "" : "t");
|
|
if (opts->flags & REBASE_VERBOSE)
|
|
write_file(state_dir_path("verbose", opts), "%s", "");
|
|
if (opts->strategy)
|
|
write_file(state_dir_path("strategy", opts), "%s",
|
|
opts->strategy);
|
|
if (opts->strategy_opts)
|
|
write_file(state_dir_path("strategy_opts", opts), "%s",
|
|
opts->strategy_opts);
|
|
if (opts->allow_rerere_autoupdate > 0)
|
|
write_file(state_dir_path("allow_rerere_autoupdate", opts),
|
|
"-%s-rerere-autoupdate",
|
|
opts->allow_rerere_autoupdate == RERERE_AUTOUPDATE ?
|
|
"" : "-no");
|
|
if (opts->gpg_sign_opt)
|
|
write_file(state_dir_path("gpg_sign_opt", opts), "%s",
|
|
opts->gpg_sign_opt);
|
|
if (opts->signoff)
|
|
write_file(state_dir_path("strategy", opts), "--signoff");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int apply_autostash(struct rebase_options *opts)
|
|
{
|
|
const char *path = state_dir_path("autostash", opts);
|
|
struct strbuf autostash = STRBUF_INIT;
|
|
struct child_process stash_apply = CHILD_PROCESS_INIT;
|
|
|
|
if (!file_exists(path))
|
|
return 0;
|
|
|
|
if (read_one(path, &autostash))
|
|
return error(_("Could not read '%s'"), path);
|
|
/* Ensure that the hash is not mistaken for a number */
|
|
strbuf_addstr(&autostash, "^0");
|
|
argv_array_pushl(&stash_apply.args,
|
|
"stash", "apply", autostash.buf, NULL);
|
|
stash_apply.git_cmd = 1;
|
|
stash_apply.no_stderr = stash_apply.no_stdout =
|
|
stash_apply.no_stdin = 1;
|
|
if (!run_command(&stash_apply))
|
|
printf(_("Applied autostash.\n"));
|
|
else {
|
|
struct argv_array args = ARGV_ARRAY_INIT;
|
|
int res = 0;
|
|
|
|
argv_array_pushl(&args,
|
|
"stash", "store", "-m", "autostash", "-q",
|
|
autostash.buf, NULL);
|
|
if (run_command_v_opt(args.argv, RUN_GIT_CMD))
|
|
res = error(_("Cannot store %s"), autostash.buf);
|
|
argv_array_clear(&args);
|
|
strbuf_release(&autostash);
|
|
if (res)
|
|
return res;
|
|
|
|
fprintf(stderr,
|
|
_("Applying autostash resulted in conflicts.\n"
|
|
"Your changes are safe in the stash.\n"
|
|
"You can run \"git stash pop\" or \"git stash drop\" "
|
|
"at any time.\n"));
|
|
}
|
|
|
|
strbuf_release(&autostash);
|
|
return 0;
|
|
}
|
|
|
|
static int finish_rebase(struct rebase_options *opts)
|
|
{
|
|
struct strbuf dir = STRBUF_INIT;
|
|
const char *argv_gc_auto[] = { "gc", "--auto", NULL };
|
|
|
|
delete_ref(NULL, "REBASE_HEAD", NULL, REF_NO_DEREF);
|
|
apply_autostash(opts);
|
|
close_all_packs(the_repository->objects);
|
|
/*
|
|
* We ignore errors in 'gc --auto', since the
|
|
* user should see them.
|
|
*/
|
|
run_command_v_opt(argv_gc_auto, RUN_GIT_CMD);
|
|
strbuf_addstr(&dir, opts->state_dir);
|
|
remove_dir_recursively(&dir, 0);
|
|
strbuf_release(&dir);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct commit *peel_committish(const char *name)
|
|
{
|
|
struct object *obj;
|
|
struct object_id oid;
|
|
|
|
if (get_oid(name, &oid))
|
|
return NULL;
|
|
obj = parse_object(the_repository, &oid);
|
|
return (struct commit *)peel_to_type(name, 0, obj, OBJ_COMMIT);
|
|
}
|
|
|
|
static void add_var(struct strbuf *buf, const char *name, const char *value)
|
|
{
|
|
if (!value)
|
|
strbuf_addf(buf, "unset %s; ", name);
|
|
else {
|
|
strbuf_addf(buf, "%s=", name);
|
|
sq_quote_buf(buf, value);
|
|
strbuf_addstr(buf, "; ");
|
|
}
|
|
}
|
|
|
|
#define GIT_REFLOG_ACTION_ENVIRONMENT "GIT_REFLOG_ACTION"
|
|
|
|
#define RESET_HEAD_DETACH (1<<0)
|
|
#define RESET_HEAD_HARD (1<<1)
|
|
#define RESET_HEAD_RUN_POST_CHECKOUT_HOOK (1<<2)
|
|
#define RESET_HEAD_REFS_ONLY (1<<3)
|
|
#define RESET_ORIG_HEAD (1<<4)
|
|
|
|
static int reset_head(struct object_id *oid, const char *action,
|
|
const char *switch_to_branch, unsigned flags,
|
|
const char *reflog_orig_head, const char *reflog_head)
|
|
{
|
|
unsigned detach_head = flags & RESET_HEAD_DETACH;
|
|
unsigned reset_hard = flags & RESET_HEAD_HARD;
|
|
unsigned run_hook = flags & RESET_HEAD_RUN_POST_CHECKOUT_HOOK;
|
|
unsigned refs_only = flags & RESET_HEAD_REFS_ONLY;
|
|
unsigned update_orig_head = flags & RESET_ORIG_HEAD;
|
|
struct object_id head_oid;
|
|
struct tree_desc desc[2] = { { NULL }, { NULL } };
|
|
struct lock_file lock = LOCK_INIT;
|
|
struct unpack_trees_options unpack_tree_opts;
|
|
struct tree *tree;
|
|
const char *reflog_action;
|
|
struct strbuf msg = STRBUF_INIT;
|
|
size_t prefix_len;
|
|
struct object_id *orig = NULL, oid_orig,
|
|
*old_orig = NULL, oid_old_orig;
|
|
int ret = 0, nr = 0;
|
|
|
|
if (switch_to_branch && !starts_with(switch_to_branch, "refs/"))
|
|
BUG("Not a fully qualified branch: '%s'", switch_to_branch);
|
|
|
|
if (!refs_only && hold_locked_index(&lock, LOCK_REPORT_ON_ERROR) < 0) {
|
|
ret = -1;
|
|
goto leave_reset_head;
|
|
}
|
|
|
|
if ((!oid || !reset_hard) && get_oid("HEAD", &head_oid)) {
|
|
ret = error(_("could not determine HEAD revision"));
|
|
goto leave_reset_head;
|
|
}
|
|
|
|
if (!oid)
|
|
oid = &head_oid;
|
|
|
|
if (refs_only)
|
|
goto reset_head_refs;
|
|
|
|
memset(&unpack_tree_opts, 0, sizeof(unpack_tree_opts));
|
|
setup_unpack_trees_porcelain(&unpack_tree_opts, action);
|
|
unpack_tree_opts.head_idx = 1;
|
|
unpack_tree_opts.src_index = the_repository->index;
|
|
unpack_tree_opts.dst_index = the_repository->index;
|
|
unpack_tree_opts.fn = reset_hard ? oneway_merge : twoway_merge;
|
|
unpack_tree_opts.update = 1;
|
|
unpack_tree_opts.merge = 1;
|
|
if (!detach_head)
|
|
unpack_tree_opts.reset = 1;
|
|
|
|
if (repo_read_index_unmerged(the_repository) < 0) {
|
|
ret = error(_("could not read index"));
|
|
goto leave_reset_head;
|
|
}
|
|
|
|
if (!reset_hard && !fill_tree_descriptor(&desc[nr++], &head_oid)) {
|
|
ret = error(_("failed to find tree of %s"),
|
|
oid_to_hex(&head_oid));
|
|
goto leave_reset_head;
|
|
}
|
|
|
|
if (!fill_tree_descriptor(&desc[nr++], oid)) {
|
|
ret = error(_("failed to find tree of %s"), oid_to_hex(oid));
|
|
goto leave_reset_head;
|
|
}
|
|
|
|
if (unpack_trees(nr, desc, &unpack_tree_opts)) {
|
|
ret = -1;
|
|
goto leave_reset_head;
|
|
}
|
|
|
|
tree = parse_tree_indirect(oid);
|
|
prime_cache_tree(the_repository, the_repository->index, tree);
|
|
|
|
if (write_locked_index(the_repository->index, &lock, COMMIT_LOCK) < 0) {
|
|
ret = error(_("could not write index"));
|
|
goto leave_reset_head;
|
|
}
|
|
|
|
reset_head_refs:
|
|
reflog_action = getenv(GIT_REFLOG_ACTION_ENVIRONMENT);
|
|
strbuf_addf(&msg, "%s: ", reflog_action ? reflog_action : "rebase");
|
|
prefix_len = msg.len;
|
|
|
|
if (update_orig_head) {
|
|
if (!get_oid("ORIG_HEAD", &oid_old_orig))
|
|
old_orig = &oid_old_orig;
|
|
if (!get_oid("HEAD", &oid_orig)) {
|
|
orig = &oid_orig;
|
|
if (!reflog_orig_head) {
|
|
strbuf_addstr(&msg, "updating ORIG_HEAD");
|
|
reflog_orig_head = msg.buf;
|
|
}
|
|
update_ref(reflog_orig_head, "ORIG_HEAD", orig,
|
|
old_orig, 0, UPDATE_REFS_MSG_ON_ERR);
|
|
} else if (old_orig)
|
|
delete_ref(NULL, "ORIG_HEAD", old_orig, 0);
|
|
}
|
|
|
|
if (!reflog_head) {
|
|
strbuf_setlen(&msg, prefix_len);
|
|
strbuf_addstr(&msg, "updating HEAD");
|
|
reflog_head = msg.buf;
|
|
}
|
|
if (!switch_to_branch)
|
|
ret = update_ref(reflog_head, "HEAD", oid, orig,
|
|
detach_head ? REF_NO_DEREF : 0,
|
|
UPDATE_REFS_MSG_ON_ERR);
|
|
else {
|
|
ret = update_ref(reflog_head, switch_to_branch, oid,
|
|
NULL, 0, UPDATE_REFS_MSG_ON_ERR);
|
|
if (!ret)
|
|
ret = create_symref("HEAD", switch_to_branch,
|
|
reflog_head);
|
|
}
|
|
if (run_hook)
|
|
run_hook_le(NULL, "post-checkout",
|
|
oid_to_hex(orig ? orig : &null_oid),
|
|
oid_to_hex(oid), "1", NULL);
|
|
|
|
leave_reset_head:
|
|
strbuf_release(&msg);
|
|
rollback_lock_file(&lock);
|
|
while (nr)
|
|
free((void *)desc[--nr].buffer);
|
|
return ret;
|
|
}
|
|
|
|
static int move_to_original_branch(struct rebase_options *opts)
|
|
{
|
|
struct strbuf orig_head_reflog = STRBUF_INIT, head_reflog = STRBUF_INIT;
|
|
int ret;
|
|
|
|
if (!opts->head_name)
|
|
return 0; /* nothing to move back to */
|
|
|
|
if (!opts->onto)
|
|
BUG("move_to_original_branch without onto");
|
|
|
|
strbuf_addf(&orig_head_reflog, "rebase finished: %s onto %s",
|
|
opts->head_name, oid_to_hex(&opts->onto->object.oid));
|
|
strbuf_addf(&head_reflog, "rebase finished: returning to %s",
|
|
opts->head_name);
|
|
ret = reset_head(NULL, "", opts->head_name, RESET_HEAD_REFS_ONLY,
|
|
orig_head_reflog.buf, head_reflog.buf);
|
|
|
|
strbuf_release(&orig_head_reflog);
|
|
strbuf_release(&head_reflog);
|
|
return ret;
|
|
}
|
|
|
|
static const char *resolvemsg =
|
|
N_("Resolve all conflicts manually, mark them as resolved with\n"
|
|
"\"git add/rm <conflicted_files>\", then run \"git rebase --continue\".\n"
|
|
"You can instead skip this commit: run \"git rebase --skip\".\n"
|
|
"To abort and get back to the state before \"git rebase\", run "
|
|
"\"git rebase --abort\".");
|
|
|
|
static int run_am(struct rebase_options *opts)
|
|
{
|
|
struct child_process am = CHILD_PROCESS_INIT;
|
|
struct child_process format_patch = CHILD_PROCESS_INIT;
|
|
struct strbuf revisions = STRBUF_INIT;
|
|
int status;
|
|
char *rebased_patches;
|
|
|
|
am.git_cmd = 1;
|
|
argv_array_push(&am.args, "am");
|
|
|
|
if (opts->action && !strcmp("continue", opts->action)) {
|
|
argv_array_push(&am.args, "--resolved");
|
|
argv_array_pushf(&am.args, "--resolvemsg=%s", resolvemsg);
|
|
if (opts->gpg_sign_opt)
|
|
argv_array_push(&am.args, opts->gpg_sign_opt);
|
|
status = run_command(&am);
|
|
if (status)
|
|
return status;
|
|
|
|
return move_to_original_branch(opts);
|
|
}
|
|
if (opts->action && !strcmp("skip", opts->action)) {
|
|
argv_array_push(&am.args, "--skip");
|
|
argv_array_pushf(&am.args, "--resolvemsg=%s", resolvemsg);
|
|
status = run_command(&am);
|
|
if (status)
|
|
return status;
|
|
|
|
return move_to_original_branch(opts);
|
|
}
|
|
if (opts->action && !strcmp("show-current-patch", opts->action)) {
|
|
argv_array_push(&am.args, "--show-current-patch");
|
|
return run_command(&am);
|
|
}
|
|
|
|
strbuf_addf(&revisions, "%s...%s",
|
|
oid_to_hex(opts->root ?
|
|
/* this is now equivalent to !opts->upstream */
|
|
&opts->onto->object.oid :
|
|
&opts->upstream->object.oid),
|
|
oid_to_hex(&opts->orig_head));
|
|
|
|
rebased_patches = xstrdup(git_path("rebased-patches"));
|
|
format_patch.out = open(rebased_patches,
|
|
O_WRONLY | O_CREAT | O_TRUNC, 0666);
|
|
if (format_patch.out < 0) {
|
|
status = error_errno(_("could not open '%s' for writing"),
|
|
rebased_patches);
|
|
free(rebased_patches);
|
|
argv_array_clear(&am.args);
|
|
return status;
|
|
}
|
|
|
|
format_patch.git_cmd = 1;
|
|
argv_array_pushl(&format_patch.args, "format-patch", "-k", "--stdout",
|
|
"--full-index", "--cherry-pick", "--right-only",
|
|
"--src-prefix=a/", "--dst-prefix=b/", "--no-renames",
|
|
"--no-cover-letter", "--pretty=mboxrd", "--topo-order", NULL);
|
|
if (opts->git_format_patch_opt.len)
|
|
argv_array_split(&format_patch.args,
|
|
opts->git_format_patch_opt.buf);
|
|
argv_array_push(&format_patch.args, revisions.buf);
|
|
if (opts->restrict_revision)
|
|
argv_array_pushf(&format_patch.args, "^%s",
|
|
oid_to_hex(&opts->restrict_revision->object.oid));
|
|
|
|
status = run_command(&format_patch);
|
|
if (status) {
|
|
unlink(rebased_patches);
|
|
free(rebased_patches);
|
|
argv_array_clear(&am.args);
|
|
|
|
reset_head(&opts->orig_head, "checkout", opts->head_name, 0,
|
|
"HEAD", NULL);
|
|
error(_("\ngit encountered an error while preparing the "
|
|
"patches to replay\n"
|
|
"these revisions:\n"
|
|
"\n %s\n\n"
|
|
"As a result, git cannot rebase them."),
|
|
opts->revisions);
|
|
|
|
strbuf_release(&revisions);
|
|
return status;
|
|
}
|
|
strbuf_release(&revisions);
|
|
|
|
am.in = open(rebased_patches, O_RDONLY);
|
|
if (am.in < 0) {
|
|
status = error_errno(_("could not open '%s' for reading"),
|
|
rebased_patches);
|
|
free(rebased_patches);
|
|
argv_array_clear(&am.args);
|
|
return status;
|
|
}
|
|
|
|
argv_array_pushv(&am.args, opts->git_am_opts.argv);
|
|
argv_array_push(&am.args, "--rebasing");
|
|
argv_array_pushf(&am.args, "--resolvemsg=%s", resolvemsg);
|
|
argv_array_push(&am.args, "--patch-format=mboxrd");
|
|
if (opts->allow_rerere_autoupdate == RERERE_AUTOUPDATE)
|
|
argv_array_push(&am.args, "--rerere-autoupdate");
|
|
else if (opts->allow_rerere_autoupdate == RERERE_NOAUTOUPDATE)
|
|
argv_array_push(&am.args, "--no-rerere-autoupdate");
|
|
if (opts->gpg_sign_opt)
|
|
argv_array_push(&am.args, opts->gpg_sign_opt);
|
|
status = run_command(&am);
|
|
unlink(rebased_patches);
|
|
free(rebased_patches);
|
|
|
|
if (!status) {
|
|
return move_to_original_branch(opts);
|
|
}
|
|
|
|
if (is_directory(opts->state_dir))
|
|
rebase_write_basic_state(opts);
|
|
|
|
return status;
|
|
}
|
|
|
|
static int run_specific_rebase(struct rebase_options *opts, enum action action)
|
|
{
|
|
const char *argv[] = { NULL, NULL };
|
|
struct strbuf script_snippet = STRBUF_INIT, buf = STRBUF_INIT;
|
|
int status;
|
|
const char *backend, *backend_func;
|
|
|
|
if (opts->type == REBASE_INTERACTIVE) {
|
|
/* Run builtin interactive rebase */
|
|
setenv("GIT_CHERRY_PICK_HELP", resolvemsg, 1);
|
|
if (!(opts->flags & REBASE_INTERACTIVE_EXPLICIT)) {
|
|
setenv("GIT_SEQUENCE_EDITOR", ":", 1);
|
|
opts->autosquash = 0;
|
|
}
|
|
if (opts->gpg_sign_opt) {
|
|
/* remove the leading "-S" */
|
|
char *tmp = xstrdup(opts->gpg_sign_opt + 2);
|
|
free(opts->gpg_sign_opt);
|
|
opts->gpg_sign_opt = tmp;
|
|
}
|
|
|
|
status = run_rebase_interactive(opts, action);
|
|
goto finished_rebase;
|
|
}
|
|
|
|
if (opts->type == REBASE_AM) {
|
|
status = run_am(opts);
|
|
goto finished_rebase;
|
|
}
|
|
|
|
add_var(&script_snippet, "GIT_DIR", absolute_path(get_git_dir()));
|
|
add_var(&script_snippet, "state_dir", opts->state_dir);
|
|
|
|
add_var(&script_snippet, "upstream_name", opts->upstream_name);
|
|
add_var(&script_snippet, "upstream", opts->upstream ?
|
|
oid_to_hex(&opts->upstream->object.oid) : NULL);
|
|
add_var(&script_snippet, "head_name",
|
|
opts->head_name ? opts->head_name : "detached HEAD");
|
|
add_var(&script_snippet, "orig_head", oid_to_hex(&opts->orig_head));
|
|
add_var(&script_snippet, "onto", opts->onto ?
|
|
oid_to_hex(&opts->onto->object.oid) : NULL);
|
|
add_var(&script_snippet, "onto_name", opts->onto_name);
|
|
add_var(&script_snippet, "revisions", opts->revisions);
|
|
add_var(&script_snippet, "restrict_revision", opts->restrict_revision ?
|
|
oid_to_hex(&opts->restrict_revision->object.oid) : NULL);
|
|
add_var(&script_snippet, "GIT_QUIET",
|
|
opts->flags & REBASE_NO_QUIET ? "" : "t");
|
|
sq_quote_argv_pretty(&buf, opts->git_am_opts.argv);
|
|
add_var(&script_snippet, "git_am_opt", buf.buf);
|
|
strbuf_release(&buf);
|
|
add_var(&script_snippet, "verbose",
|
|
opts->flags & REBASE_VERBOSE ? "t" : "");
|
|
add_var(&script_snippet, "diffstat",
|
|
opts->flags & REBASE_DIFFSTAT ? "t" : "");
|
|
add_var(&script_snippet, "force_rebase",
|
|
opts->flags & REBASE_FORCE ? "t" : "");
|
|
if (opts->switch_to)
|
|
add_var(&script_snippet, "switch_to", opts->switch_to);
|
|
add_var(&script_snippet, "action", opts->action ? opts->action : "");
|
|
add_var(&script_snippet, "signoff", opts->signoff ? "--signoff" : "");
|
|
add_var(&script_snippet, "allow_rerere_autoupdate",
|
|
opts->allow_rerere_autoupdate ?
|
|
opts->allow_rerere_autoupdate == RERERE_AUTOUPDATE ?
|
|
"--rerere-autoupdate" : "--no-rerere-autoupdate" : "");
|
|
add_var(&script_snippet, "keep_empty", opts->keep_empty ? "yes" : "");
|
|
add_var(&script_snippet, "autosquash", opts->autosquash ? "t" : "");
|
|
add_var(&script_snippet, "gpg_sign_opt", opts->gpg_sign_opt);
|
|
add_var(&script_snippet, "cmd", opts->cmd);
|
|
add_var(&script_snippet, "allow_empty_message",
|
|
opts->allow_empty_message ? "--allow-empty-message" : "");
|
|
add_var(&script_snippet, "rebase_merges",
|
|
opts->rebase_merges ? "t" : "");
|
|
add_var(&script_snippet, "rebase_cousins",
|
|
opts->rebase_cousins ? "t" : "");
|
|
add_var(&script_snippet, "strategy", opts->strategy);
|
|
add_var(&script_snippet, "strategy_opts", opts->strategy_opts);
|
|
add_var(&script_snippet, "rebase_root", opts->root ? "t" : "");
|
|
add_var(&script_snippet, "squash_onto",
|
|
opts->squash_onto ? oid_to_hex(opts->squash_onto) : "");
|
|
add_var(&script_snippet, "git_format_patch_opt",
|
|
opts->git_format_patch_opt.buf);
|
|
|
|
if (is_interactive(opts) &&
|
|
!(opts->flags & REBASE_INTERACTIVE_EXPLICIT)) {
|
|
strbuf_addstr(&script_snippet,
|
|
"GIT_SEQUENCE_EDITOR=:; export GIT_SEQUENCE_EDITOR; ");
|
|
opts->autosquash = 0;
|
|
}
|
|
|
|
switch (opts->type) {
|
|
case REBASE_PRESERVE_MERGES:
|
|
backend = "git-rebase--preserve-merges";
|
|
backend_func = "git_rebase__preserve_merges";
|
|
break;
|
|
default:
|
|
BUG("Unhandled rebase type %d", opts->type);
|
|
break;
|
|
}
|
|
|
|
strbuf_addf(&script_snippet,
|
|
". git-sh-setup && . %s && %s", backend, backend_func);
|
|
argv[0] = script_snippet.buf;
|
|
|
|
status = run_command_v_opt(argv, RUN_USING_SHELL);
|
|
finished_rebase:
|
|
if (opts->dont_finish_rebase)
|
|
; /* do nothing */
|
|
else if (opts->type == REBASE_INTERACTIVE)
|
|
; /* interactive rebase cleans up after itself */
|
|
else if (status == 0) {
|
|
if (!file_exists(state_dir_path("stopped-sha", opts)))
|
|
finish_rebase(opts);
|
|
} else if (status == 2) {
|
|
struct strbuf dir = STRBUF_INIT;
|
|
|
|
apply_autostash(opts);
|
|
strbuf_addstr(&dir, opts->state_dir);
|
|
remove_dir_recursively(&dir, 0);
|
|
strbuf_release(&dir);
|
|
die("Nothing to do");
|
|
}
|
|
|
|
strbuf_release(&script_snippet);
|
|
|
|
return status ? -1 : 0;
|
|
}
|
|
|
|
static int rebase_config(const char *var, const char *value, void *data)
|
|
{
|
|
struct rebase_options *opts = data;
|
|
|
|
if (!strcmp(var, "rebase.stat")) {
|
|
if (git_config_bool(var, value))
|
|
opts->flags |= REBASE_DIFFSTAT;
|
|
else
|
|
opts->flags &= ~REBASE_DIFFSTAT;
|
|
return 0;
|
|
}
|
|
|
|
if (!strcmp(var, "rebase.autosquash")) {
|
|
opts->autosquash = git_config_bool(var, value);
|
|
return 0;
|
|
}
|
|
|
|
if (!strcmp(var, "commit.gpgsign")) {
|
|
free(opts->gpg_sign_opt);
|
|
opts->gpg_sign_opt = git_config_bool(var, value) ?
|
|
xstrdup("-S") : NULL;
|
|
return 0;
|
|
}
|
|
|
|
if (!strcmp(var, "rebase.autostash")) {
|
|
opts->autostash = git_config_bool(var, value);
|
|
return 0;
|
|
}
|
|
|
|
if (!strcmp(var, "rebase.reschedulefailedexec")) {
|
|
opts->reschedule_failed_exec = git_config_bool(var, value);
|
|
return 0;
|
|
}
|
|
|
|
if (!strcmp(var, "rebase.usebuiltin")) {
|
|
opts->use_legacy_rebase = !git_config_bool(var, value);
|
|
return 0;
|
|
}
|
|
|
|
return git_default_config(var, value, data);
|
|
}
|
|
|
|
/*
|
|
* Determines whether the commits in from..to are linear, i.e. contain
|
|
* no merge commits. This function *expects* `from` to be an ancestor of
|
|
* `to`.
|
|
*/
|
|
static int is_linear_history(struct commit *from, struct commit *to)
|
|
{
|
|
while (to && to != from) {
|
|
parse_commit(to);
|
|
if (!to->parents)
|
|
return 1;
|
|
if (to->parents->next)
|
|
return 0;
|
|
to = to->parents->item;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int can_fast_forward(struct commit *onto, struct object_id *head_oid,
|
|
struct object_id *merge_base)
|
|
{
|
|
struct commit *head = lookup_commit(the_repository, head_oid);
|
|
struct commit_list *merge_bases;
|
|
int res;
|
|
|
|
if (!head)
|
|
return 0;
|
|
|
|
merge_bases = get_merge_bases(onto, head);
|
|
if (merge_bases && !merge_bases->next) {
|
|
oidcpy(merge_base, &merge_bases->item->object.oid);
|
|
res = oideq(merge_base, &onto->object.oid);
|
|
} else {
|
|
oidcpy(merge_base, &null_oid);
|
|
res = 0;
|
|
}
|
|
free_commit_list(merge_bases);
|
|
return res && is_linear_history(onto, head);
|
|
}
|
|
|
|
/* -i followed by -m is still -i */
|
|
static int parse_opt_merge(const struct option *opt, const char *arg, int unset)
|
|
{
|
|
struct rebase_options *opts = opt->value;
|
|
|
|
BUG_ON_OPT_NEG(unset);
|
|
BUG_ON_OPT_ARG(arg);
|
|
|
|
if (!is_interactive(opts))
|
|
opts->type = REBASE_MERGE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* -i followed by -p is still explicitly interactive, but -p alone is not */
|
|
static int parse_opt_interactive(const struct option *opt, const char *arg,
|
|
int unset)
|
|
{
|
|
struct rebase_options *opts = opt->value;
|
|
|
|
BUG_ON_OPT_NEG(unset);
|
|
BUG_ON_OPT_ARG(arg);
|
|
|
|
opts->type = REBASE_INTERACTIVE;
|
|
opts->flags |= REBASE_INTERACTIVE_EXPLICIT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void NORETURN error_on_missing_default_upstream(void)
|
|
{
|
|
struct branch *current_branch = branch_get(NULL);
|
|
|
|
printf(_("%s\n"
|
|
"Please specify which branch you want to rebase against.\n"
|
|
"See git-rebase(1) for details.\n"
|
|
"\n"
|
|
" git rebase '<branch>'\n"
|
|
"\n"),
|
|
current_branch ? _("There is no tracking information for "
|
|
"the current branch.") :
|
|
_("You are not currently on a branch."));
|
|
|
|
if (current_branch) {
|
|
const char *remote = current_branch->remote_name;
|
|
|
|
if (!remote)
|
|
remote = _("<remote>");
|
|
|
|
printf(_("If you wish to set tracking information for this "
|
|
"branch you can do so with:\n"
|
|
"\n"
|
|
" git branch --set-upstream-to=%s/<branch> %s\n"
|
|
"\n"),
|
|
remote, current_branch->name);
|
|
}
|
|
exit(1);
|
|
}
|
|
|
|
static void set_reflog_action(struct rebase_options *options)
|
|
{
|
|
const char *env;
|
|
struct strbuf buf = STRBUF_INIT;
|
|
|
|
if (!is_interactive(options))
|
|
return;
|
|
|
|
env = getenv(GIT_REFLOG_ACTION_ENVIRONMENT);
|
|
if (env && strcmp("rebase", env))
|
|
return; /* only override it if it is "rebase" */
|
|
|
|
strbuf_addf(&buf, "rebase -i (%s)", options->action);
|
|
setenv(GIT_REFLOG_ACTION_ENVIRONMENT, buf.buf, 1);
|
|
strbuf_release(&buf);
|
|
}
|
|
|
|
static int check_exec_cmd(const char *cmd)
|
|
{
|
|
if (strchr(cmd, '\n'))
|
|
return error(_("exec commands cannot contain newlines"));
|
|
|
|
/* Does the command consist purely of whitespace? */
|
|
if (!cmd[strspn(cmd, " \t\r\f\v")])
|
|
return error(_("empty exec command"));
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int cmd_rebase(int argc, const char **argv, const char *prefix)
|
|
{
|
|
struct rebase_options options = REBASE_OPTIONS_INIT;
|
|
const char *branch_name;
|
|
int ret, flags, total_argc, in_progress = 0;
|
|
int ok_to_skip_pre_rebase = 0;
|
|
struct strbuf msg = STRBUF_INIT;
|
|
struct strbuf revisions = STRBUF_INIT;
|
|
struct strbuf buf = STRBUF_INIT;
|
|
struct object_id merge_base;
|
|
enum action action = ACTION_NONE;
|
|
const char *gpg_sign = NULL;
|
|
struct string_list exec = STRING_LIST_INIT_NODUP;
|
|
const char *rebase_merges = NULL;
|
|
int fork_point = -1;
|
|
struct string_list strategy_options = STRING_LIST_INIT_NODUP;
|
|
struct object_id squash_onto;
|
|
char *squash_onto_name = NULL;
|
|
struct option builtin_rebase_options[] = {
|
|
OPT_STRING(0, "onto", &options.onto_name,
|
|
N_("revision"),
|
|
N_("rebase onto given branch instead of upstream")),
|
|
OPT_BOOL(0, "no-verify", &ok_to_skip_pre_rebase,
|
|
N_("allow pre-rebase hook to run")),
|
|
OPT_NEGBIT('q', "quiet", &options.flags,
|
|
N_("be quiet. implies --no-stat"),
|
|
REBASE_NO_QUIET| REBASE_VERBOSE | REBASE_DIFFSTAT),
|
|
OPT_BIT('v', "verbose", &options.flags,
|
|
N_("display a diffstat of what changed upstream"),
|
|
REBASE_NO_QUIET | REBASE_VERBOSE | REBASE_DIFFSTAT),
|
|
{OPTION_NEGBIT, 'n', "no-stat", &options.flags, NULL,
|
|
N_("do not show diffstat of what changed upstream"),
|
|
PARSE_OPT_NOARG, NULL, REBASE_DIFFSTAT },
|
|
OPT_BOOL(0, "signoff", &options.signoff,
|
|
N_("add a Signed-off-by: line to each commit")),
|
|
OPT_PASSTHRU_ARGV(0, "ignore-whitespace", &options.git_am_opts,
|
|
NULL, N_("passed to 'git am'"),
|
|
PARSE_OPT_NOARG),
|
|
OPT_PASSTHRU_ARGV(0, "committer-date-is-author-date",
|
|
&options.git_am_opts, NULL,
|
|
N_("passed to 'git am'"), PARSE_OPT_NOARG),
|
|
OPT_PASSTHRU_ARGV(0, "ignore-date", &options.git_am_opts, NULL,
|
|
N_("passed to 'git am'"), PARSE_OPT_NOARG),
|
|
OPT_PASSTHRU_ARGV('C', NULL, &options.git_am_opts, N_("n"),
|
|
N_("passed to 'git apply'"), 0),
|
|
OPT_PASSTHRU_ARGV(0, "whitespace", &options.git_am_opts,
|
|
N_("action"), N_("passed to 'git apply'"), 0),
|
|
OPT_BIT('f', "force-rebase", &options.flags,
|
|
N_("cherry-pick all commits, even if unchanged"),
|
|
REBASE_FORCE),
|
|
OPT_BIT(0, "no-ff", &options.flags,
|
|
N_("cherry-pick all commits, even if unchanged"),
|
|
REBASE_FORCE),
|
|
OPT_CMDMODE(0, "continue", &action, N_("continue"),
|
|
ACTION_CONTINUE),
|
|
OPT_CMDMODE(0, "skip", &action,
|
|
N_("skip current patch and continue"), ACTION_SKIP),
|
|
OPT_CMDMODE(0, "abort", &action,
|
|
N_("abort and check out the original branch"),
|
|
ACTION_ABORT),
|
|
OPT_CMDMODE(0, "quit", &action,
|
|
N_("abort but keep HEAD where it is"), ACTION_QUIT),
|
|
OPT_CMDMODE(0, "edit-todo", &action, N_("edit the todo list "
|
|
"during an interactive rebase"), ACTION_EDIT_TODO),
|
|
OPT_CMDMODE(0, "show-current-patch", &action,
|
|
N_("show the patch file being applied or merged"),
|
|
ACTION_SHOW_CURRENT_PATCH),
|
|
{ OPTION_CALLBACK, 'm', "merge", &options, NULL,
|
|
N_("use merging strategies to rebase"),
|
|
PARSE_OPT_NOARG | PARSE_OPT_NONEG,
|
|
parse_opt_merge },
|
|
{ OPTION_CALLBACK, 'i', "interactive", &options, NULL,
|
|
N_("let the user edit the list of commits to rebase"),
|
|
PARSE_OPT_NOARG | PARSE_OPT_NONEG,
|
|
parse_opt_interactive },
|
|
OPT_SET_INT('p', "preserve-merges", &options.type,
|
|
N_("(DEPRECATED) try to recreate merges instead of "
|
|
"ignoring them"), REBASE_PRESERVE_MERGES),
|
|
OPT_RERERE_AUTOUPDATE(&options.allow_rerere_autoupdate),
|
|
OPT_BOOL('k', "keep-empty", &options.keep_empty,
|
|
N_("preserve empty commits during rebase")),
|
|
OPT_BOOL(0, "autosquash", &options.autosquash,
|
|
N_("move commits that begin with "
|
|
"squash!/fixup! under -i")),
|
|
{ OPTION_STRING, 'S', "gpg-sign", &gpg_sign, N_("key-id"),
|
|
N_("GPG-sign commits"),
|
|
PARSE_OPT_OPTARG, NULL, (intptr_t) "" },
|
|
OPT_BOOL(0, "autostash", &options.autostash,
|
|
N_("automatically stash/stash pop before and after")),
|
|
OPT_STRING_LIST('x', "exec", &exec, N_("exec"),
|
|
N_("add exec lines after each commit of the "
|
|
"editable list")),
|
|
OPT_BOOL(0, "allow-empty-message",
|
|
&options.allow_empty_message,
|
|
N_("allow rebasing commits with empty messages")),
|
|
{OPTION_STRING, 'r', "rebase-merges", &rebase_merges,
|
|
N_("mode"),
|
|
N_("try to rebase merges instead of skipping them"),
|
|
PARSE_OPT_OPTARG, NULL, (intptr_t)""},
|
|
OPT_BOOL(0, "fork-point", &fork_point,
|
|
N_("use 'merge-base --fork-point' to refine upstream")),
|
|
OPT_STRING('s', "strategy", &options.strategy,
|
|
N_("strategy"), N_("use the given merge strategy")),
|
|
OPT_STRING_LIST('X', "strategy-option", &strategy_options,
|
|
N_("option"),
|
|
N_("pass the argument through to the merge "
|
|
"strategy")),
|
|
OPT_BOOL(0, "root", &options.root,
|
|
N_("rebase all reachable commits up to the root(s)")),
|
|
OPT_BOOL(0, "reschedule-failed-exec",
|
|
&options.reschedule_failed_exec,
|
|
N_("automatically re-schedule any `exec` that fails")),
|
|
OPT_END(),
|
|
};
|
|
int i;
|
|
|
|
if (argc == 2 && !strcmp(argv[1], "-h"))
|
|
usage_with_options(builtin_rebase_usage,
|
|
builtin_rebase_options);
|
|
|
|
prefix = setup_git_directory();
|
|
trace_repo_setup(prefix);
|
|
setup_work_tree();
|
|
|
|
options.allow_empty_message = 1;
|
|
git_config(rebase_config, &options);
|
|
|
|
if (options.use_legacy_rebase ||
|
|
!git_env_bool("GIT_TEST_REBASE_USE_BUILTIN", -1))
|
|
warning(_("the rebase.useBuiltin support has been removed!\n"
|
|
"See its entry in 'git help config' for details."));
|
|
|
|
strbuf_reset(&buf);
|
|
strbuf_addf(&buf, "%s/applying", apply_dir());
|
|
if(file_exists(buf.buf))
|
|
die(_("It looks like 'git am' is in progress. Cannot rebase."));
|
|
|
|
if (is_directory(apply_dir())) {
|
|
options.type = REBASE_AM;
|
|
options.state_dir = apply_dir();
|
|
} else if (is_directory(merge_dir())) {
|
|
strbuf_reset(&buf);
|
|
strbuf_addf(&buf, "%s/rewritten", merge_dir());
|
|
if (is_directory(buf.buf)) {
|
|
options.type = REBASE_PRESERVE_MERGES;
|
|
options.flags |= REBASE_INTERACTIVE_EXPLICIT;
|
|
} else {
|
|
strbuf_reset(&buf);
|
|
strbuf_addf(&buf, "%s/interactive", merge_dir());
|
|
if(file_exists(buf.buf)) {
|
|
options.type = REBASE_INTERACTIVE;
|
|
options.flags |= REBASE_INTERACTIVE_EXPLICIT;
|
|
} else
|
|
options.type = REBASE_MERGE;
|
|
}
|
|
options.state_dir = merge_dir();
|
|
}
|
|
|
|
if (options.type != REBASE_UNSPECIFIED)
|
|
in_progress = 1;
|
|
|
|
total_argc = argc;
|
|
argc = parse_options(argc, argv, prefix,
|
|
builtin_rebase_options,
|
|
builtin_rebase_usage, 0);
|
|
|
|
if (action != ACTION_NONE && total_argc != 2) {
|
|
usage_with_options(builtin_rebase_usage,
|
|
builtin_rebase_options);
|
|
}
|
|
|
|
if (argc > 2)
|
|
usage_with_options(builtin_rebase_usage,
|
|
builtin_rebase_options);
|
|
|
|
if (options.type == REBASE_PRESERVE_MERGES)
|
|
warning(_("git rebase --preserve-merges is deprecated. "
|
|
"Use --rebase-merges instead."));
|
|
|
|
if (action != ACTION_NONE && !in_progress)
|
|
die(_("No rebase in progress?"));
|
|
setenv(GIT_REFLOG_ACTION_ENVIRONMENT, "rebase", 0);
|
|
|
|
if (action == ACTION_EDIT_TODO && !is_interactive(&options))
|
|
die(_("The --edit-todo action can only be used during "
|
|
"interactive rebase."));
|
|
|
|
if (trace2_is_enabled()) {
|
|
if (is_interactive(&options))
|
|
trace2_cmd_mode("interactive");
|
|
else if (exec.nr)
|
|
trace2_cmd_mode("interactive-exec");
|
|
else
|
|
trace2_cmd_mode(action_names[action]);
|
|
}
|
|
|
|
switch (action) {
|
|
case ACTION_CONTINUE: {
|
|
struct object_id head;
|
|
struct lock_file lock_file = LOCK_INIT;
|
|
int fd;
|
|
|
|
options.action = "continue";
|
|
set_reflog_action(&options);
|
|
|
|
/* Sanity check */
|
|
if (get_oid("HEAD", &head))
|
|
die(_("Cannot read HEAD"));
|
|
|
|
fd = hold_locked_index(&lock_file, 0);
|
|
if (repo_read_index(the_repository) < 0)
|
|
die(_("could not read index"));
|
|
refresh_index(the_repository->index, REFRESH_QUIET, NULL, NULL,
|
|
NULL);
|
|
if (0 <= fd)
|
|
repo_update_index_if_able(the_repository, &lock_file);
|
|
rollback_lock_file(&lock_file);
|
|
|
|
if (has_unstaged_changes(the_repository, 1)) {
|
|
puts(_("You must edit all merge conflicts and then\n"
|
|
"mark them as resolved using git add"));
|
|
exit(1);
|
|
}
|
|
if (read_basic_state(&options))
|
|
exit(1);
|
|
goto run_rebase;
|
|
}
|
|
case ACTION_SKIP: {
|
|
struct string_list merge_rr = STRING_LIST_INIT_DUP;
|
|
|
|
options.action = "skip";
|
|
set_reflog_action(&options);
|
|
|
|
rerere_clear(the_repository, &merge_rr);
|
|
string_list_clear(&merge_rr, 1);
|
|
|
|
if (reset_head(NULL, "reset", NULL, RESET_HEAD_HARD,
|
|
NULL, NULL) < 0)
|
|
die(_("could not discard worktree changes"));
|
|
remove_branch_state(the_repository);
|
|
if (read_basic_state(&options))
|
|
exit(1);
|
|
goto run_rebase;
|
|
}
|
|
case ACTION_ABORT: {
|
|
struct string_list merge_rr = STRING_LIST_INIT_DUP;
|
|
options.action = "abort";
|
|
set_reflog_action(&options);
|
|
|
|
rerere_clear(the_repository, &merge_rr);
|
|
string_list_clear(&merge_rr, 1);
|
|
|
|
if (read_basic_state(&options))
|
|
exit(1);
|
|
if (reset_head(&options.orig_head, "reset",
|
|
options.head_name, RESET_HEAD_HARD,
|
|
NULL, NULL) < 0)
|
|
die(_("could not move back to %s"),
|
|
oid_to_hex(&options.orig_head));
|
|
remove_branch_state(the_repository);
|
|
ret = finish_rebase(&options);
|
|
goto cleanup;
|
|
}
|
|
case ACTION_QUIT: {
|
|
strbuf_reset(&buf);
|
|
strbuf_addstr(&buf, options.state_dir);
|
|
ret = !!remove_dir_recursively(&buf, 0);
|
|
if (ret)
|
|
die(_("could not remove '%s'"), options.state_dir);
|
|
goto cleanup;
|
|
}
|
|
case ACTION_EDIT_TODO:
|
|
options.action = "edit-todo";
|
|
options.dont_finish_rebase = 1;
|
|
goto run_rebase;
|
|
case ACTION_SHOW_CURRENT_PATCH:
|
|
options.action = "show-current-patch";
|
|
options.dont_finish_rebase = 1;
|
|
goto run_rebase;
|
|
case ACTION_NONE:
|
|
break;
|
|
default:
|
|
BUG("action: %d", action);
|
|
}
|
|
|
|
/* Make sure no rebase is in progress */
|
|
if (in_progress) {
|
|
const char *last_slash = strrchr(options.state_dir, '/');
|
|
const char *state_dir_base =
|
|
last_slash ? last_slash + 1 : options.state_dir;
|
|
const char *cmd_live_rebase =
|
|
"git rebase (--continue | --abort | --skip)";
|
|
strbuf_reset(&buf);
|
|
strbuf_addf(&buf, "rm -fr \"%s\"", options.state_dir);
|
|
die(_("It seems that there is already a %s directory, and\n"
|
|
"I wonder if you are in the middle of another rebase. "
|
|
"If that is the\n"
|
|
"case, please try\n\t%s\n"
|
|
"If that is not the case, please\n\t%s\n"
|
|
"and run me again. I am stopping in case you still "
|
|
"have something\n"
|
|
"valuable there.\n"),
|
|
state_dir_base, cmd_live_rebase, buf.buf);
|
|
}
|
|
|
|
for (i = 0; i < options.git_am_opts.argc; i++) {
|
|
const char *option = options.git_am_opts.argv[i], *p;
|
|
if (!strcmp(option, "--committer-date-is-author-date") ||
|
|
!strcmp(option, "--ignore-date") ||
|
|
!strcmp(option, "--whitespace=fix") ||
|
|
!strcmp(option, "--whitespace=strip"))
|
|
options.flags |= REBASE_FORCE;
|
|
else if (skip_prefix(option, "-C", &p)) {
|
|
while (*p)
|
|
if (!isdigit(*(p++)))
|
|
die(_("switch `C' expects a "
|
|
"numerical value"));
|
|
} else if (skip_prefix(option, "--whitespace=", &p)) {
|
|
if (*p && strcmp(p, "warn") && strcmp(p, "nowarn") &&
|
|
strcmp(p, "error") && strcmp(p, "error-all"))
|
|
die("Invalid whitespace option: '%s'", p);
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < exec.nr; i++)
|
|
if (check_exec_cmd(exec.items[i].string))
|
|
exit(1);
|
|
|
|
if (!(options.flags & REBASE_NO_QUIET))
|
|
argv_array_push(&options.git_am_opts, "-q");
|
|
|
|
if (options.keep_empty)
|
|
imply_interactive(&options, "--keep-empty");
|
|
|
|
if (gpg_sign) {
|
|
free(options.gpg_sign_opt);
|
|
options.gpg_sign_opt = xstrfmt("-S%s", gpg_sign);
|
|
}
|
|
|
|
if (exec.nr) {
|
|
int i;
|
|
|
|
imply_interactive(&options, "--exec");
|
|
|
|
strbuf_reset(&buf);
|
|
for (i = 0; i < exec.nr; i++)
|
|
strbuf_addf(&buf, "exec %s\n", exec.items[i].string);
|
|
options.cmd = xstrdup(buf.buf);
|
|
}
|
|
|
|
if (rebase_merges) {
|
|
if (!*rebase_merges)
|
|
; /* default mode; do nothing */
|
|
else if (!strcmp("rebase-cousins", rebase_merges))
|
|
options.rebase_cousins = 1;
|
|
else if (strcmp("no-rebase-cousins", rebase_merges))
|
|
die(_("Unknown mode: %s"), rebase_merges);
|
|
options.rebase_merges = 1;
|
|
imply_interactive(&options, "--rebase-merges");
|
|
}
|
|
|
|
if (strategy_options.nr) {
|
|
int i;
|
|
|
|
if (!options.strategy)
|
|
options.strategy = "recursive";
|
|
|
|
strbuf_reset(&buf);
|
|
for (i = 0; i < strategy_options.nr; i++)
|
|
strbuf_addf(&buf, " --%s",
|
|
strategy_options.items[i].string);
|
|
options.strategy_opts = xstrdup(buf.buf);
|
|
}
|
|
|
|
if (options.strategy) {
|
|
options.strategy = xstrdup(options.strategy);
|
|
switch (options.type) {
|
|
case REBASE_AM:
|
|
die(_("--strategy requires --merge or --interactive"));
|
|
case REBASE_MERGE:
|
|
case REBASE_INTERACTIVE:
|
|
case REBASE_PRESERVE_MERGES:
|
|
/* compatible */
|
|
break;
|
|
case REBASE_UNSPECIFIED:
|
|
options.type = REBASE_MERGE;
|
|
break;
|
|
default:
|
|
BUG("unhandled rebase type (%d)", options.type);
|
|
}
|
|
}
|
|
|
|
if (options.type == REBASE_MERGE)
|
|
imply_interactive(&options, "--merge");
|
|
|
|
if (options.root && !options.onto_name)
|
|
imply_interactive(&options, "--root without --onto");
|
|
|
|
if (isatty(2) && options.flags & REBASE_NO_QUIET)
|
|
strbuf_addstr(&options.git_format_patch_opt, " --progress");
|
|
|
|
switch (options.type) {
|
|
case REBASE_MERGE:
|
|
case REBASE_INTERACTIVE:
|
|
case REBASE_PRESERVE_MERGES:
|
|
options.state_dir = merge_dir();
|
|
break;
|
|
case REBASE_AM:
|
|
options.state_dir = apply_dir();
|
|
break;
|
|
default:
|
|
/* the default rebase backend is `--am` */
|
|
options.type = REBASE_AM;
|
|
options.state_dir = apply_dir();
|
|
break;
|
|
}
|
|
|
|
if (options.reschedule_failed_exec && !is_interactive(&options))
|
|
die(_("%s requires an interactive rebase"), "--reschedule-failed-exec");
|
|
|
|
if (options.git_am_opts.argc) {
|
|
/* all am options except -q are compatible only with --am */
|
|
for (i = options.git_am_opts.argc - 1; i >= 0; i--)
|
|
if (strcmp(options.git_am_opts.argv[i], "-q"))
|
|
break;
|
|
|
|
if (is_interactive(&options) && i >= 0)
|
|
die(_("cannot combine am options with either "
|
|
"interactive or merge options"));
|
|
}
|
|
|
|
if (options.signoff) {
|
|
if (options.type == REBASE_PRESERVE_MERGES)
|
|
die("cannot combine '--signoff' with "
|
|
"'--preserve-merges'");
|
|
argv_array_push(&options.git_am_opts, "--signoff");
|
|
options.flags |= REBASE_FORCE;
|
|
}
|
|
|
|
if (options.type == REBASE_PRESERVE_MERGES) {
|
|
/*
|
|
* Note: incompatibility with --signoff handled in signoff block above
|
|
* Note: incompatibility with --interactive is just a strong warning;
|
|
* git-rebase.txt caveats with "unless you know what you are doing"
|
|
*/
|
|
if (options.rebase_merges)
|
|
die(_("cannot combine '--preserve-merges' with "
|
|
"'--rebase-merges'"));
|
|
|
|
if (options.reschedule_failed_exec)
|
|
die(_("error: cannot combine '--preserve-merges' with "
|
|
"'--reschedule-failed-exec'"));
|
|
}
|
|
|
|
if (options.rebase_merges) {
|
|
if (strategy_options.nr)
|
|
die(_("cannot combine '--rebase-merges' with "
|
|
"'--strategy-option'"));
|
|
if (options.strategy)
|
|
die(_("cannot combine '--rebase-merges' with "
|
|
"'--strategy'"));
|
|
}
|
|
|
|
if (!options.root) {
|
|
if (argc < 1) {
|
|
struct branch *branch;
|
|
|
|
branch = branch_get(NULL);
|
|
options.upstream_name = branch_get_upstream(branch,
|
|
NULL);
|
|
if (!options.upstream_name)
|
|
error_on_missing_default_upstream();
|
|
if (fork_point < 0)
|
|
fork_point = 1;
|
|
} else {
|
|
options.upstream_name = argv[0];
|
|
argc--;
|
|
argv++;
|
|
if (!strcmp(options.upstream_name, "-"))
|
|
options.upstream_name = "@{-1}";
|
|
}
|
|
options.upstream = peel_committish(options.upstream_name);
|
|
if (!options.upstream)
|
|
die(_("invalid upstream '%s'"), options.upstream_name);
|
|
options.upstream_arg = options.upstream_name;
|
|
} else {
|
|
if (!options.onto_name) {
|
|
if (commit_tree("", 0, the_hash_algo->empty_tree, NULL,
|
|
&squash_onto, NULL, NULL) < 0)
|
|
die(_("Could not create new root commit"));
|
|
options.squash_onto = &squash_onto;
|
|
options.onto_name = squash_onto_name =
|
|
xstrdup(oid_to_hex(&squash_onto));
|
|
}
|
|
options.upstream_name = NULL;
|
|
options.upstream = NULL;
|
|
if (argc > 1)
|
|
usage_with_options(builtin_rebase_usage,
|
|
builtin_rebase_options);
|
|
options.upstream_arg = "--root";
|
|
}
|
|
|
|
/* Make sure the branch to rebase onto is valid. */
|
|
if (!options.onto_name)
|
|
options.onto_name = options.upstream_name;
|
|
if (strstr(options.onto_name, "...")) {
|
|
if (get_oid_mb(options.onto_name, &merge_base) < 0)
|
|
die(_("'%s': need exactly one merge base"),
|
|
options.onto_name);
|
|
options.onto = lookup_commit_or_die(&merge_base,
|
|
options.onto_name);
|
|
} else {
|
|
options.onto = peel_committish(options.onto_name);
|
|
if (!options.onto)
|
|
die(_("Does not point to a valid commit '%s'"),
|
|
options.onto_name);
|
|
}
|
|
|
|
/*
|
|
* If the branch to rebase is given, that is the branch we will rebase
|
|
* branch_name -- branch/commit being rebased, or
|
|
* HEAD (already detached)
|
|
* orig_head -- commit object name of tip of the branch before rebasing
|
|
* head_name -- refs/heads/<that-branch> or NULL (detached HEAD)
|
|
*/
|
|
if (argc == 1) {
|
|
/* Is it "rebase other branchname" or "rebase other commit"? */
|
|
branch_name = argv[0];
|
|
options.switch_to = argv[0];
|
|
|
|
/* Is it a local branch? */
|
|
strbuf_reset(&buf);
|
|
strbuf_addf(&buf, "refs/heads/%s", branch_name);
|
|
if (!read_ref(buf.buf, &options.orig_head))
|
|
options.head_name = xstrdup(buf.buf);
|
|
/* If not is it a valid ref (branch or commit)? */
|
|
else if (!get_oid(branch_name, &options.orig_head))
|
|
options.head_name = NULL;
|
|
else
|
|
die(_("fatal: no such branch/commit '%s'"),
|
|
branch_name);
|
|
} else if (argc == 0) {
|
|
/* Do not need to switch branches, we are already on it. */
|
|
options.head_name =
|
|
xstrdup_or_null(resolve_ref_unsafe("HEAD", 0, NULL,
|
|
&flags));
|
|
if (!options.head_name)
|
|
die(_("No such ref: %s"), "HEAD");
|
|
if (flags & REF_ISSYMREF) {
|
|
if (!skip_prefix(options.head_name,
|
|
"refs/heads/", &branch_name))
|
|
branch_name = options.head_name;
|
|
|
|
} else {
|
|
FREE_AND_NULL(options.head_name);
|
|
branch_name = "HEAD";
|
|
}
|
|
if (get_oid("HEAD", &options.orig_head))
|
|
die(_("Could not resolve HEAD to a revision"));
|
|
} else
|
|
BUG("unexpected number of arguments left to parse");
|
|
|
|
if (fork_point > 0) {
|
|
struct commit *head =
|
|
lookup_commit_reference(the_repository,
|
|
&options.orig_head);
|
|
options.restrict_revision =
|
|
get_fork_point(options.upstream_name, head);
|
|
}
|
|
|
|
if (repo_read_index(the_repository) < 0)
|
|
die(_("could not read index"));
|
|
|
|
if (options.autostash) {
|
|
struct lock_file lock_file = LOCK_INIT;
|
|
int fd;
|
|
|
|
fd = hold_locked_index(&lock_file, 0);
|
|
refresh_cache(REFRESH_QUIET);
|
|
if (0 <= fd)
|
|
repo_update_index_if_able(the_repository, &lock_file);
|
|
rollback_lock_file(&lock_file);
|
|
|
|
if (has_unstaged_changes(the_repository, 1) ||
|
|
has_uncommitted_changes(the_repository, 1)) {
|
|
const char *autostash =
|
|
state_dir_path("autostash", &options);
|
|
struct child_process stash = CHILD_PROCESS_INIT;
|
|
struct object_id oid;
|
|
struct commit *head =
|
|
lookup_commit_reference(the_repository,
|
|
&options.orig_head);
|
|
|
|
argv_array_pushl(&stash.args,
|
|
"stash", "create", "autostash", NULL);
|
|
stash.git_cmd = 1;
|
|
stash.no_stdin = 1;
|
|
strbuf_reset(&buf);
|
|
if (capture_command(&stash, &buf, GIT_MAX_HEXSZ))
|
|
die(_("Cannot autostash"));
|
|
strbuf_trim_trailing_newline(&buf);
|
|
if (get_oid(buf.buf, &oid))
|
|
die(_("Unexpected stash response: '%s'"),
|
|
buf.buf);
|
|
strbuf_reset(&buf);
|
|
strbuf_add_unique_abbrev(&buf, &oid, DEFAULT_ABBREV);
|
|
|
|
if (safe_create_leading_directories_const(autostash))
|
|
die(_("Could not create directory for '%s'"),
|
|
options.state_dir);
|
|
write_file(autostash, "%s", oid_to_hex(&oid));
|
|
printf(_("Created autostash: %s\n"), buf.buf);
|
|
if (reset_head(&head->object.oid, "reset --hard",
|
|
NULL, RESET_HEAD_HARD, NULL, NULL) < 0)
|
|
die(_("could not reset --hard"));
|
|
printf(_("HEAD is now at %s"),
|
|
find_unique_abbrev(&head->object.oid,
|
|
DEFAULT_ABBREV));
|
|
strbuf_reset(&buf);
|
|
pp_commit_easy(CMIT_FMT_ONELINE, head, &buf);
|
|
if (buf.len > 0)
|
|
printf(" %s", buf.buf);
|
|
putchar('\n');
|
|
|
|
if (discard_index(the_repository->index) < 0 ||
|
|
repo_read_index(the_repository) < 0)
|
|
die(_("could not read index"));
|
|
}
|
|
}
|
|
|
|
if (require_clean_work_tree(the_repository, "rebase",
|
|
_("Please commit or stash them."), 1, 1)) {
|
|
ret = 1;
|
|
goto cleanup;
|
|
}
|
|
|
|
/*
|
|
* Now we are rebasing commits upstream..orig_head (or with --root,
|
|
* everything leading up to orig_head) on top of onto.
|
|
*/
|
|
|
|
/*
|
|
* Check if we are already based on onto with linear history,
|
|
* but this should be done only when upstream and onto are the same
|
|
* and if this is not an interactive rebase.
|
|
*/
|
|
if (can_fast_forward(options.onto, &options.orig_head, &merge_base) &&
|
|
!is_interactive(&options) && !options.restrict_revision &&
|
|
options.upstream &&
|
|
!oidcmp(&options.upstream->object.oid, &options.onto->object.oid)) {
|
|
int flag;
|
|
|
|
if (!(options.flags & REBASE_FORCE)) {
|
|
/* Lazily switch to the target branch if needed... */
|
|
if (options.switch_to) {
|
|
struct object_id oid;
|
|
|
|
if (get_oid(options.switch_to, &oid) < 0) {
|
|
ret = !!error(_("could not parse '%s'"),
|
|
options.switch_to);
|
|
goto cleanup;
|
|
}
|
|
|
|
strbuf_reset(&buf);
|
|
strbuf_addf(&buf, "%s: checkout %s",
|
|
getenv(GIT_REFLOG_ACTION_ENVIRONMENT),
|
|
options.switch_to);
|
|
if (reset_head(&oid, "checkout",
|
|
options.head_name,
|
|
RESET_HEAD_RUN_POST_CHECKOUT_HOOK,
|
|
NULL, buf.buf) < 0) {
|
|
ret = !!error(_("could not switch to "
|
|
"%s"),
|
|
options.switch_to);
|
|
goto cleanup;
|
|
}
|
|
}
|
|
|
|
if (!(options.flags & REBASE_NO_QUIET))
|
|
; /* be quiet */
|
|
else if (!strcmp(branch_name, "HEAD") &&
|
|
resolve_ref_unsafe("HEAD", 0, NULL, &flag))
|
|
puts(_("HEAD is up to date."));
|
|
else
|
|
printf(_("Current branch %s is up to date.\n"),
|
|
branch_name);
|
|
ret = !!finish_rebase(&options);
|
|
goto cleanup;
|
|
} else if (!(options.flags & REBASE_NO_QUIET))
|
|
; /* be quiet */
|
|
else if (!strcmp(branch_name, "HEAD") &&
|
|
resolve_ref_unsafe("HEAD", 0, NULL, &flag))
|
|
puts(_("HEAD is up to date, rebase forced."));
|
|
else
|
|
printf(_("Current branch %s is up to date, rebase "
|
|
"forced.\n"), branch_name);
|
|
}
|
|
|
|
/* If a hook exists, give it a chance to interrupt*/
|
|
if (!ok_to_skip_pre_rebase &&
|
|
run_hook_le(NULL, "pre-rebase", options.upstream_arg,
|
|
argc ? argv[0] : NULL, NULL))
|
|
die(_("The pre-rebase hook refused to rebase."));
|
|
|
|
if (options.flags & REBASE_DIFFSTAT) {
|
|
struct diff_options opts;
|
|
|
|
if (options.flags & REBASE_VERBOSE) {
|
|
if (is_null_oid(&merge_base))
|
|
printf(_("Changes to %s:\n"),
|
|
oid_to_hex(&options.onto->object.oid));
|
|
else
|
|
printf(_("Changes from %s to %s:\n"),
|
|
oid_to_hex(&merge_base),
|
|
oid_to_hex(&options.onto->object.oid));
|
|
}
|
|
|
|
/* We want color (if set), but no pager */
|
|
diff_setup(&opts);
|
|
opts.stat_width = -1; /* use full terminal width */
|
|
opts.stat_graph_width = -1; /* respect statGraphWidth config */
|
|
opts.output_format |=
|
|
DIFF_FORMAT_SUMMARY | DIFF_FORMAT_DIFFSTAT;
|
|
opts.detect_rename = DIFF_DETECT_RENAME;
|
|
diff_setup_done(&opts);
|
|
diff_tree_oid(is_null_oid(&merge_base) ?
|
|
the_hash_algo->empty_tree : &merge_base,
|
|
&options.onto->object.oid, "", &opts);
|
|
diffcore_std(&opts);
|
|
diff_flush(&opts);
|
|
}
|
|
|
|
if (is_interactive(&options))
|
|
goto run_rebase;
|
|
|
|
/* Detach HEAD and reset the tree */
|
|
if (options.flags & REBASE_NO_QUIET)
|
|
printf(_("First, rewinding head to replay your work on top of "
|
|
"it...\n"));
|
|
|
|
strbuf_addf(&msg, "%s: checkout %s",
|
|
getenv(GIT_REFLOG_ACTION_ENVIRONMENT), options.onto_name);
|
|
if (reset_head(&options.onto->object.oid, "checkout", NULL,
|
|
RESET_HEAD_DETACH | RESET_ORIG_HEAD |
|
|
RESET_HEAD_RUN_POST_CHECKOUT_HOOK,
|
|
NULL, msg.buf))
|
|
die(_("Could not detach HEAD"));
|
|
strbuf_release(&msg);
|
|
|
|
/*
|
|
* If the onto is a proper descendant of the tip of the branch, then
|
|
* we just fast-forwarded.
|
|
*/
|
|
strbuf_reset(&msg);
|
|
if (oideq(&merge_base, &options.orig_head)) {
|
|
printf(_("Fast-forwarded %s to %s.\n"),
|
|
branch_name, options.onto_name);
|
|
strbuf_addf(&msg, "rebase finished: %s onto %s",
|
|
options.head_name ? options.head_name : "detached HEAD",
|
|
oid_to_hex(&options.onto->object.oid));
|
|
reset_head(NULL, "Fast-forwarded", options.head_name,
|
|
RESET_HEAD_REFS_ONLY, "HEAD", msg.buf);
|
|
strbuf_release(&msg);
|
|
ret = !!finish_rebase(&options);
|
|
goto cleanup;
|
|
}
|
|
|
|
strbuf_addf(&revisions, "%s..%s",
|
|
options.root ? oid_to_hex(&options.onto->object.oid) :
|
|
(options.restrict_revision ?
|
|
oid_to_hex(&options.restrict_revision->object.oid) :
|
|
oid_to_hex(&options.upstream->object.oid)),
|
|
oid_to_hex(&options.orig_head));
|
|
|
|
options.revisions = revisions.buf;
|
|
|
|
run_rebase:
|
|
ret = !!run_specific_rebase(&options, action);
|
|
|
|
cleanup:
|
|
strbuf_release(&revisions);
|
|
free(options.head_name);
|
|
free(options.gpg_sign_opt);
|
|
free(options.cmd);
|
|
free(squash_onto_name);
|
|
return ret;
|
|
}
|