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builtin rebase: support --autostash option

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To support `--autostash` we introduce a function `apply_autostash()`
just like in `git-legacy-rebase.sh`.

Rather than refactoring and using the same function that exists in
`sequencer.c`, we go a different route here, to avoid clashes with
the sister GSoC project that turns the interactive rebase into a
builtin.

Signed-off-by: Pratik Karki <predatoramigo@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Pratik Karki 2018-09-04 15:00:02 -07:00 committed by Junio C Hamano
parent 7998dbe1ec
commit 6defce2b02
1 changed files with 109 additions and 8 deletions
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117
builtin/rebase.c
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@ -63,12 +63,6 @@ static int use_builtin_rebase(void)
return ret;
}
static int apply_autostash(void)
{
warning("TODO");
return 0;
}
struct rebase_options {
enum rebase_type type;
const char *state_dir;
@ -98,6 +92,7 @@ struct rebase_options {
int keep_empty;
int autosquash;
char *gpg_sign_opt;
int autostash;
};
static int is_interactive(struct rebase_options *opts)
@ -224,13 +219,56 @@ static int read_basic_state(struct rebase_options *opts)
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(state_dir_path("autostash", opts), &autostash))
return error(_("Could not read '%s'"), path);
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();
apply_autostash(opts);
close_all_packs(the_repository->objects);
/*
* We ignore errors in 'gc --auto', since the
@ -345,7 +383,7 @@ static int run_specific_rebase(struct rebase_options *opts)
} else if (status == 2) {
struct strbuf dir = STRBUF_INIT;
apply_autostash();
apply_autostash(opts);
strbuf_addstr(&dir, opts->state_dir);
remove_dir_recursively(&dir, 0);
strbuf_release(&dir);
@ -480,6 +518,11 @@ static int rebase_config(const char *var, const char *value, void *data)
return 0;
}
if (!strcmp(var, "rebase.autostash")) {
opts->autostash = git_config_bool(var, value);
return 0;
}
return git_default_config(var, value, data);
}
@ -647,6 +690,8 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
N_("whitespace"), N_("passed to 'git apply'")),
OPT_SET_INT('C', NULL, &opt_c, N_("passed to 'git apply'"),
REBASE_AM),
OPT_BOOL(0, "autostash", &options.autostash,
N_("automatically stash/stash pop before and after")),
OPT_END(),
};
@ -976,6 +1021,62 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
if (read_index(the_repository->index) < 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)
update_index_if_able(&the_index, &lock_file);
rollback_lock_file(&lock_file);
if (has_unstaged_changes(0) || has_uncommitted_changes(0)) {
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", buf.buf);
printf(_("Created autostash: %s\n"), buf.buf);
if (reset_head(&head->object.oid, "reset --hard",
NULL, 0) < 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 ||
read_index(the_repository->index) < 0)
die(_("could not read index"));
}
}
if (require_clean_work_tree("rebase",
_("Please commit or stash them."), 1, 1)) {
ret = 1;