#include "refs.h"
#include "argv-array.h"
#include "quote.h"
+#include "trailer.h"
#define GIT_REFLOG_ACTION "GIT_REFLOG_ACTION"
static GIT_PATH_FUNC(git_path_todo_file, "sequencer/todo")
static GIT_PATH_FUNC(git_path_opts_file, "sequencer/opts")
static GIT_PATH_FUNC(git_path_head_file, "sequencer/head")
+static GIT_PATH_FUNC(git_path_abort_safety_file, "sequencer/abort-safety")
/*
* A script to set the GIT_AUTHOR_NAME, GIT_AUTHOR_EMAIL, and
return git_path_todo_file();
}
-static int is_rfc2822_line(const char *buf, int len)
-{
- int i;
-
- for (i = 0; i < len; i++) {
- int ch = buf[i];
- if (ch == ':')
- return 1;
- if (!isalnum(ch) && ch != '-')
- break;
- }
-
- return 0;
-}
-
-static int is_cherry_picked_from_line(const char *buf, int len)
-{
- /*
- * We only care that it looks roughly like (cherry picked from ...)
- */
- return len > strlen(cherry_picked_prefix) + 1 &&
- starts_with(buf, cherry_picked_prefix) && buf[len - 1] == ')';
-}
-
/*
* Returns 0 for non-conforming footer
* Returns 1 for conforming footer
static int has_conforming_footer(struct strbuf *sb, struct strbuf *sob,
int ignore_footer)
{
- char prev;
- int i, k;
- int len = sb->len - ignore_footer;
- const char *buf = sb->buf;
- int found_sob = 0;
-
- /* footer must end with newline */
- if (!len || buf[len - 1] != '\n')
- return 0;
+ struct trailer_info info;
+ int i;
+ int found_sob = 0, found_sob_last = 0;
- prev = '\0';
- for (i = len - 1; i > 0; i--) {
- char ch = buf[i];
- if (prev == '\n' && ch == '\n') /* paragraph break */
- break;
- prev = ch;
- }
+ trailer_info_get(&info, sb->buf);
- /* require at least one blank line */
- if (prev != '\n' || buf[i] != '\n')
+ if (info.trailer_start == info.trailer_end)
return 0;
- /* advance to start of last paragraph */
- while (i < len - 1 && buf[i] == '\n')
- i++;
-
- for (; i < len; i = k) {
- int found_rfc2822;
-
- for (k = i; k < len && buf[k] != '\n'; k++)
- ; /* do nothing */
- k++;
+ for (i = 0; i < info.trailer_nr; i++)
+ if (sob && !strncmp(info.trailers[i], sob->buf, sob->len)) {
+ found_sob = 1;
+ if (i == info.trailer_nr - 1)
+ found_sob_last = 1;
+ }
- found_rfc2822 = is_rfc2822_line(buf + i, k - i - 1);
- if (found_rfc2822 && sob &&
- !strncmp(buf + i, sob->buf, sob->len))
- found_sob = k;
+ trailer_info_release(&info);
- if (!(found_rfc2822 ||
- is_cherry_picked_from_line(buf + i, k - i - 1)))
- return 0;
- }
- if (found_sob == i)
+ if (found_sob_last)
return 3;
if (found_sob)
return 2;
static const char *action_name(const struct replay_opts *opts)
{
- return opts->action == REPLAY_REVERT ? "revert" : "cherry-pick";
+ return opts->action == REPLAY_REVERT ? N_("revert") : N_("cherry-pick");
}
struct commit_message {
int msg_fd = hold_lock_file_for_update(&msg_file, filename, 0);
if (msg_fd < 0)
- return error_errno(_("Could not lock '%s'"), filename);
+ return error_errno(_("could not lock '%s'"), filename);
if (write_in_full(msg_fd, buf, len) < 0) {
rollback_lock_file(&msg_file);
- return error_errno(_("Could not write to '%s'"), filename);
+ return error_errno(_("could not write to '%s'"), filename);
}
if (append_eol && write(msg_fd, "\n", 1) < 0) {
rollback_lock_file(&msg_file);
- return error_errno(_("Could not write eol to '%s"), filename);
+ return error_errno(_("could not write eol to '%s'"), filename);
}
if (commit_lock_file(&msg_file) < 0) {
rollback_lock_file(&msg_file);
- return error(_("Error wrapping up %s."), filename);
+ return error(_("failed to finalize '%s'."), filename);
}
return 0;
static int error_dirty_index(struct replay_opts *opts)
{
if (read_cache_unmerged())
- return error_resolve_conflict(action_name(opts));
+ return error_resolve_conflict(_(action_name(opts)));
- error(_("Your local changes would be overwritten by %s."),
- action_name(opts));
+ error(_("your local changes would be overwritten by %s."),
+ _(action_name(opts)));
if (advice_commit_before_merge)
- advise(_("Commit your changes or stash them to proceed."));
+ advise(_("commit your changes or stash them to proceed."));
return -1;
}
+static void update_abort_safety_file(void)
+{
+ struct object_id head;
+
+ /* Do nothing on a single-pick */
+ if (!file_exists(git_path_seq_dir()))
+ return;
+
+ if (!get_oid("HEAD", &head))
+ write_file(git_path_abort_safety_file(), "%s", oid_to_hex(&head));
+ else
+ write_file(git_path_abort_safety_file(), "%s", "");
+}
+
static int fast_forward_to(const unsigned char *to, const unsigned char *from,
int unborn, struct replay_opts *opts)
{
if (checkout_fast_forward(from, to, 1))
return -1; /* the callee should have complained already */
- strbuf_addf(&sb, _("%s: fast-forward"), action_name(opts));
+ strbuf_addf(&sb, _("%s: fast-forward"), _(action_name(opts)));
transaction = ref_transaction_begin(&err);
if (!transaction ||
strbuf_release(&sb);
strbuf_release(&err);
ref_transaction_free(transaction);
+ update_abort_safety_file();
return 0;
}
char **xopt;
static struct lock_file index_lock;
- hold_locked_index(&index_lock, 1);
+ hold_locked_index(&index_lock, LOCK_DIE_ON_ERROR);
read_cache();
write_locked_index(&the_index, &index_lock, COMMIT_LOCK))
/* TRANSLATORS: %s will be "revert" or "cherry-pick" */
return error(_("%s: Unable to write new index file"),
- action_name(opts));
+ _(action_name(opts)));
rollback_lock_file(&index_lock);
if (opts->signoff)
struct commit *head_commit;
if (!resolve_ref_unsafe("HEAD", RESOLVE_REF_READING, head_sha1, NULL))
- return error(_("Could not resolve HEAD commit\n"));
+ return error(_("could not resolve HEAD commit\n"));
head_commit = lookup_commit(head_sha1);
if (!cache_tree_fully_valid(active_cache_tree))
if (cache_tree_update(&the_index, 0))
- return error(_("Unable to update cache tree\n"));
+ return error(_("unable to update cache tree\n"));
return !hashcmp(active_cache_tree->sha1, head_commit->tree->object.oid.hash);
}
return env;
}
+static const char staged_changes_advice[] =
+N_("you have staged changes in your working tree\n"
+"If these changes are meant to be squashed into the previous commit, run:\n"
+"\n"
+" git commit --amend %s\n"
+"\n"
+"If they are meant to go into a new commit, run:\n"
+"\n"
+" git commit %s\n"
+"\n"
+"In both cases, once you're done, continue with:\n"
+"\n"
+" git rebase --continue\n");
+
/*
* If we are cherry-pick, and if the merge did not result in
* hand-editing, we will hit this commit and inherit the original
if (!env) {
const char *gpg_opt = gpg_sign_opt_quoted(opts);
- return error("You have staged changes in your working "
- "tree. If these changes are meant to be\n"
- "squashed into the previous commit, run:\n\n"
- " git commit --amend %s\n\n"
- "If they are meant to go into a new commit, "
- "run:\n\n"
- " git commit %s\n\n"
- "In both cases, once you're done, continue "
- "with:\n\n"
- " git rebase --continue\n", gpg_opt, gpg_opt);
+ return error(_(staged_changes_advice),
+ gpg_opt, gpg_opt);
}
}
const unsigned char *ptree_sha1;
if (parse_commit(commit))
- return error(_("Could not parse commit %s\n"),
+ return error(_("could not parse commit %s\n"),
oid_to_hex(&commit->object.oid));
if (commit->parents) {
struct commit *parent = commit->parents->item;
if (parse_commit(parent))
- return error(_("Could not parse parent commit %s\n"),
+ return error(_("could not parse parent commit %s\n"),
oid_to_hex(&parent->object.oid));
ptree_sha1 = parent->tree->object.oid.hash;
} else {
static const char *command_to_string(const enum todo_command command)
{
- if (command < ARRAY_SIZE(todo_command_strings))
+ if ((size_t)command < ARRAY_SIZE(todo_command_strings))
return todo_command_strings[command];
die("Unknown command: %d", command);
}
* to work on.
*/
if (write_cache_as_tree(head, 0, NULL))
- return error(_("Your index file is unmerged."));
+ return error(_("your index file is unmerged."));
} else {
unborn = get_sha1("HEAD", head);
if (unborn)
hashcpy(head, EMPTY_TREE_SHA1_BIN);
- if (index_differs_from(unborn ? EMPTY_TREE_SHA1_HEX : "HEAD", 0))
+ if (index_differs_from(unborn ? EMPTY_TREE_SHA1_HEX : "HEAD", 0, 0))
return error_dirty_index(opts);
}
discard_cache();
struct commit_list *p;
if (!opts->mainline)
- return error(_("Commit %s is a merge but no -m option was given."),
+ return error(_("commit %s is a merge but no -m option was given."),
oid_to_hex(&commit->object.oid));
for (cnt = 1, p = commit->parents;
cnt++)
p = p->next;
if (cnt != opts->mainline || !p)
- return error(_("Commit %s does not have parent %d"),
+ return error(_("commit %s does not have parent %d"),
oid_to_hex(&commit->object.oid), opts->mainline);
parent = p->item;
} else if (0 < opts->mainline)
- return error(_("Mainline was specified but commit %s is not a merge."),
+ return error(_("mainline was specified but commit %s is not a merge."),
oid_to_hex(&commit->object.oid));
else
parent = commit->parents->item;
oid_to_hex(&parent->object.oid));
if (get_message(commit, &msg) != 0)
- return error(_("Cannot get commit message for %s"),
+ return error(_("cannot get commit message for %s"),
oid_to_hex(&commit->object.oid));
/*
leave:
free_message(commit, &msg);
+ update_abort_safety_file();
return res;
}
if (read_index_preload(&the_index, NULL) < 0) {
rollback_lock_file(&index_lock);
return error(_("git %s: failed to read the index"),
- action_name(opts));
+ _(action_name(opts)));
}
refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED, NULL, NULL, NULL);
if (the_index.cache_changed && index_fd >= 0) {
if (write_locked_index(&the_index, &index_lock, COMMIT_LOCK)) {
rollback_lock_file(&index_lock);
return error(_("git %s: failed to refresh the index"),
- action_name(opts));
+ _(action_name(opts)));
}
}
rollback_lock_file(&index_lock);
item = append_new_todo(todo_list);
item->offset_in_buf = p - todo_list->buf.buf;
if (parse_insn_line(item, p, eol)) {
- res = error(_("Invalid line %d: %.*s"),
+ res = error(_("invalid line %d: %.*s"),
i, (int)(eol - p), p);
item->command = -1;
}
}
if (!todo_list->nr)
- return error(_("No commits parsed."));
+ return error(_("no commits parsed."));
return res;
}
strbuf_reset(&todo_list->buf);
fd = open(todo_file, O_RDONLY);
if (fd < 0)
- return error_errno(_("Could not open %s"), todo_file);
+ return error_errno(_("could not open '%s'"), todo_file);
if (strbuf_read(&todo_list->buf, fd, 0) < 0) {
close(fd);
- return error(_("Could not read %s."), todo_file);
+ return error(_("could not read '%s'."), todo_file);
}
close(fd);
res = parse_insn_buffer(todo_list->buf.buf, todo_list);
if (res)
- return error(_("Unusable instruction sheet: %s"), todo_file);
+ return error(_("unusable instruction sheet: '%s'"), todo_file);
if (!is_rebase_i(opts)) {
enum todo_command valid =
if (valid == todo_list->items[i].command)
continue;
else if (valid == TODO_PICK)
- return error(_("Cannot cherry-pick during a revert."));
+ return error(_("cannot cherry-pick during a revert."));
else
- return error(_("Cannot revert during a cherry-pick."));
+ return error(_("cannot revert during a cherry-pick."));
}
return 0;
ALLOC_GROW(opts->xopts, opts->xopts_nr + 1, opts->xopts_alloc);
opts->xopts[opts->xopts_nr++] = xstrdup(value);
} else
- return error(_("Invalid key: %s"), key);
+ return error(_("invalid key: %s"), key);
if (!error_flag)
- return error(_("Invalid value for %s: %s"), key, value);
+ return error(_("invalid value for %s: %s"), key, value);
return 0;
}
* are pretty certain that it is syntactically correct.
*/
if (git_config_from_file(populate_opts_cb, git_path_opts_file(), opts) < 0)
- return error(_("Malformed options sheet: %s"),
+ return error(_("malformed options sheet: '%s'"),
git_path_opts_file());
return 0;
}
return -1;
}
else if (mkdir(git_path_seq_dir(), 0777) < 0)
- return error_errno(_("Could not create sequencer directory %s"),
+ return error_errno(_("could not create sequencer directory '%s'"),
git_path_seq_dir());
return 0;
}
fd = hold_lock_file_for_update(&head_lock, git_path_head_file(), 0);
if (fd < 0) {
rollback_lock_file(&head_lock);
- return error_errno(_("Could not lock HEAD"));
+ return error_errno(_("could not lock HEAD"));
}
strbuf_addf(&buf, "%s\n", head);
if (write_in_full(fd, buf.buf, buf.len) < 0) {
rollback_lock_file(&head_lock);
- return error_errno(_("Could not write to %s"),
+ return error_errno(_("could not write to '%s'"),
git_path_head_file());
}
if (commit_lock_file(&head_lock) < 0) {
rollback_lock_file(&head_lock);
- return error(_("Error wrapping up %s."), git_path_head_file());
+ return error(_("failed to finalize '%s'."), git_path_head_file());
}
return 0;
}
+static int rollback_is_safe(void)
+{
+ struct strbuf sb = STRBUF_INIT;
+ struct object_id expected_head, actual_head;
+
+ if (strbuf_read_file(&sb, git_path_abort_safety_file(), 0) >= 0) {
+ strbuf_trim(&sb);
+ if (get_oid_hex(sb.buf, &expected_head)) {
+ strbuf_release(&sb);
+ die(_("could not parse %s"), git_path_abort_safety_file());
+ }
+ strbuf_release(&sb);
+ }
+ else if (errno == ENOENT)
+ oidclr(&expected_head);
+ else
+ die_errno(_("could not read '%s'"), git_path_abort_safety_file());
+
+ if (get_oid("HEAD", &actual_head))
+ oidclr(&actual_head);
+
+ return !oidcmp(&actual_head, &expected_head);
+}
+
static int reset_for_rollback(const unsigned char *sha1)
{
const char *argv[4]; /* reset --merge <arg> + NULL */
+
argv[0] = "reset";
argv[1] = "--merge";
argv[2] = sha1_to_hex(sha1);
return rollback_single_pick();
}
if (!f)
- return error_errno(_("cannot open %s"), git_path_head_file());
+ return error_errno(_("cannot open '%s'"), git_path_head_file());
if (strbuf_getline_lf(&buf, f)) {
- error(_("cannot read %s: %s"), git_path_head_file(),
+ error(_("cannot read '%s': %s"), git_path_head_file(),
ferror(f) ? strerror(errno) : _("unexpected end of file"));
fclose(f);
goto fail;
error(_("cannot abort from a branch yet to be born"));
goto fail;
}
+
+ if (!rollback_is_safe()) {
+ /* Do not error, just do not rollback */
+ warning(_("You seem to have moved HEAD. "
+ "Not rewinding, check your HEAD!"));
+ } else
if (reset_for_rollback(sha1))
goto fail;
strbuf_release(&buf);
fd = hold_lock_file_for_update(&todo_lock, todo_path, 0);
if (fd < 0)
- return error_errno(_("Could not lock '%s'"), todo_path);
+ return error_errno(_("could not lock '%s'"), todo_path);
offset = next < todo_list->nr ?
todo_list->items[next].offset_in_buf : todo_list->buf.len;
if (write_in_full(fd, todo_list->buf.buf + offset,
todo_list->buf.len - offset) < 0)
- return error_errno(_("Could not write to '%s'"), todo_path);
+ return error_errno(_("could not write to '%s'"), todo_path);
if (commit_lock_file(&todo_lock) < 0)
- return error(_("Error wrapping up %s."), todo_path);
+ return error(_("failed to finalize '%s'."), todo_path);
return 0;
}
if (res)
goto release_todo_list;
}
- if (index_differs_from("HEAD", 0)) {
+ if (index_differs_from("HEAD", 0, 0)) {
res = error_dirty_index(opts);
goto release_todo_list;
}
create_seq_dir() < 0)
return -1;
if (get_sha1("HEAD", sha1) && (opts->action == REPLAY_REVERT))
- return error(_("Can't revert as initial commit"));
+ return error(_("can't revert as initial commit"));
if (save_head(sha1_to_hex(sha1)))
return -1;
if (save_opts(opts))
return -1;
+ update_abort_safety_file();
res = pick_commits(&todo_list, opts);
todo_list_release(&todo_list);
return res;