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sequencer: extract perform_autostash() from rebase

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Lib-ify the autostash code by extracting perform_autostash() from rebase
into sequencer. In a future commit, this will be used to implement
`--autostash` in other builtins.

This patch is best viewed with `--color-moved`.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Denton Liu 2020-04-07 10:28:03 -04:00 committed by Junio C Hamano
parent 9bb3dea45d
commit 0816f1dff8
3 changed files with 52 additions and 49 deletions
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49
builtin/rebase.c
View file

@ -1274,55 +1274,6 @@ static int check_exec_cmd(const char *cmd)
return 0;
}
static void create_autostash(struct repository *r, const char *path,
const char *default_reflog_action)
{
struct strbuf buf = STRBUF_INIT;
struct lock_file lock_file = LOCK_INIT;
int fd;
fd = repo_hold_locked_index(r, &lock_file, 0);
refresh_index(r->index, REFRESH_QUIET, NULL, NULL, NULL);
if (0 <= fd)
repo_update_index_if_able(r, &lock_file);
rollback_lock_file(&lock_file);
if (has_unstaged_changes(r, 1) ||
has_uncommitted_changes(r, 1)) {
struct child_process stash = CHILD_PROCESS_INIT;
struct object_id oid;
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(path))
die(_("Could not create directory for '%s'"),
path);
write_file(path, "%s", oid_to_hex(&oid));
printf(_("Created autostash: %s\n"), buf.buf);
if (reset_head(r, NULL, "reset --hard",
NULL, RESET_HEAD_HARD, NULL, NULL,
default_reflog_action) < 0)
die(_("could not reset --hard"));
if (discard_index(r->index) < 0 ||
repo_read_index(r) < 0)
die(_("could not read index"));
}
strbuf_release(&buf);
}
int cmd_rebase(int argc, const char **argv, const char *prefix)
{
struct rebase_options options = REBASE_OPTIONS_INIT;

50
sequencer.c
View file

@ -32,6 +32,7 @@
#include "alias.h"
#include "commit-reach.h"
#include "rebase-interactive.h"
#include "reset.h"
#define GIT_REFLOG_ACTION "GIT_REFLOG_ACTION"
@ -3657,6 +3658,55 @@ static enum todo_command peek_command(struct todo_list *todo_list, int offset)
return -1;
}
void create_autostash(struct repository *r, const char *path,
const char *default_reflog_action)
{
struct strbuf buf = STRBUF_INIT;
struct lock_file lock_file = LOCK_INIT;
int fd;
fd = repo_hold_locked_index(r, &lock_file, 0);
refresh_index(r->index, REFRESH_QUIET, NULL, NULL, NULL);
if (0 <= fd)
repo_update_index_if_able(r, &lock_file);
rollback_lock_file(&lock_file);
if (has_unstaged_changes(r, 1) ||
has_uncommitted_changes(r, 1)) {
struct child_process stash = CHILD_PROCESS_INIT;
struct object_id oid;
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(path))
die(_("Could not create directory for '%s'"),
path);
write_file(path, "%s", oid_to_hex(&oid));
printf(_("Created autostash: %s\n"), buf.buf);
if (reset_head(r, NULL, "reset --hard",
NULL, RESET_HEAD_HARD, NULL, NULL,
default_reflog_action) < 0)
die(_("could not reset --hard"));
if (discard_index(r->index) < 0 ||
repo_read_index(r) < 0)
die(_("could not read index"));
}
strbuf_release(&buf);
}
int apply_autostash(const char *path)
{
struct strbuf stash_oid = STRBUF_INIT;

2
sequencer.h
View file

@ -191,6 +191,8 @@ 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 apply_autostash(const char *path);
#define SUMMARY_INITIAL_COMMIT (1 << 0)