#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;
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)
{
strbuf_release(&sb);
strbuf_release(&err);
ref_transaction_free(transaction);
+ update_abort_safety_file();
return 0;
}
leave:
free_message(commit, &msg);
+ update_abort_safety_file();
return res;
}
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);
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);
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;