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cherry-pick: don't forget -s on failure

In case 'git cherry-pick -s <commit>' failed, the user had to use 'git
commit -s' (i.e. state the -s option again), which is easy to forget
about.  Instead, write the signed-off-by line early, so plain 'git
commit' will have the same result.

Also update 'git commit -s', so that in case there is already a relevant
Signed-off-by line before the Conflicts: line, it won't add one more at
the end of the message. If there is no such line, then add it before the
the Conflicts: line.

Signed-off-by: Miklos Vajna <vmiklos@suse.cz>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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1 parent ce5cf6f commit 5ed75e2a3fb30f93fea7772e481ec6091e9a2c5f @vmiklos vmiklos committed with gitster Sep 14, 2012
Showing with 144 additions and 65 deletions.
  1. +24 −57 builtin/commit.c
  2. +65 −0 sequencer.c
  3. +4 −0 sequencer.h
  4. +32 −0 t/t3507-cherry-pick-conflict.sh
  5. +3 −3 t/t3510-cherry-pick-sequence.sh
  6. +16 −5 t/test-lib-functions.sh
View
81 builtin/commit.c
@@ -28,6 +28,7 @@
#include "submodule.h"
#include "gpg-interface.h"
#include "column.h"
+#include "sequencer.h"
static const char * const builtin_commit_usage[] = {
N_("git commit [options] [--] <filepattern>..."),
@@ -466,8 +467,6 @@ static int is_a_merge(const struct commit *current_head)
return !!(current_head->parents && current_head->parents->next);
}
-static const char sign_off_header[] = "Signed-off-by: ";
-
static void export_one(const char *var, const char *s, const char *e, int hack)
{
struct strbuf buf = STRBUF_INIT;
@@ -552,47 +551,6 @@ static void determine_author_info(struct strbuf *author_ident)
}
}
-static int ends_rfc2822_footer(struct strbuf *sb)
-{
- int ch;
- int hit = 0;
- int i, j, k;
- int len = sb->len;
- int first = 1;
- const char *buf = sb->buf;
-
- for (i = len - 1; i > 0; i--) {
- if (hit && buf[i] == '\n')
- break;
- hit = (buf[i] == '\n');
- }
-
- while (i < len - 1 && buf[i] == '\n')
- i++;
-
- for (; i < len; i = k) {
- for (k = i; k < len && buf[k] != '\n'; k++)
- ; /* do nothing */
- k++;
-
- if ((buf[k] == ' ' || buf[k] == '\t') && !first)
- continue;
-
- first = 0;
-
- for (j = 0; i + j < len; j++) {
- ch = buf[i + j];
- if (ch == ':')
- break;
- if (isalnum(ch) ||
- (ch == '-'))
- continue;
- return 0;
- }
- }
- return 1;
-}
-
static char *cut_ident_timestamp_part(char *string)
{
char *ket = strrchr(string, '>');
@@ -717,21 +675,30 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
stripspace(&sb, 0);
if (signoff) {
- struct strbuf sob = STRBUF_INIT;
- int i;
-
- strbuf_addstr(&sob, sign_off_header);
- strbuf_addstr(&sob, fmt_name(getenv("GIT_COMMITTER_NAME"),
- getenv("GIT_COMMITTER_EMAIL")));
- strbuf_addch(&sob, '\n');
- for (i = sb.len - 1; i > 0 && sb.buf[i - 1] != '\n'; i--)
- ; /* do nothing */
- if (prefixcmp(sb.buf + i, sob.buf)) {
- if (!i || !ends_rfc2822_footer(&sb))
- strbuf_addch(&sb, '\n');
- strbuf_addbuf(&sb, &sob);
+ /*
+ * See if we have a Conflicts: block at the end. If yes, count
+ * its size, so we can ignore it.
+ */
+ int ignore_footer = 0;
+ int i, eol, previous = 0;
+ const char *nl;
+
+ for (i = 0; i < sb.len; i++) {
+ nl = memchr(sb.buf + i, '\n', sb.len - i);
+ if (nl)
+ eol = nl - sb.buf;
+ else
+ eol = sb.len;
+ if (!prefixcmp(sb.buf + previous, "\nConflicts:\n")) {
+ ignore_footer = sb.len - previous;
+ break;
+ }
+ while (i < eol)
+ i++;
+ previous = eol;
}
- strbuf_release(&sob);
+
+ append_signoff(&sb, ignore_footer);
}
if (fwrite(sb.buf, 1, sb.len, s->fp) < sb.len)
View
65 sequencer.c
@@ -17,6 +17,8 @@
#define GIT_REFLOG_ACTION "GIT_REFLOG_ACTION"
+const char sign_off_header[] = "Signed-off-by: ";
+
void remove_sequencer_state(void)
{
struct strbuf seq_dir = STRBUF_INIT;
@@ -233,6 +235,9 @@ static int do_recursive_merge(struct commit *base, struct commit *next,
die(_("%s: Unable to write new index file"), action_name(opts));
rollback_lock_file(&index_lock);
+ if (opts->signoff)
+ append_signoff(msgbuf, 0);
+
if (!clean) {
int i;
strbuf_addstr(msgbuf, "\nConflicts:\n");
@@ -1011,3 +1016,63 @@ int sequencer_pick_revisions(struct replay_opts *opts)
save_opts(opts);
return pick_commits(todo_list, opts);
}
+
+static int ends_rfc2822_footer(struct strbuf *sb, int ignore_footer)
+{
+ int ch;
+ int hit = 0;
+ int i, j, k;
+ int len = sb->len - ignore_footer;
+ int first = 1;
+ const char *buf = sb->buf;
+
+ for (i = len - 1; i > 0; i--) {
+ if (hit && buf[i] == '\n')
+ break;
+ hit = (buf[i] == '\n');
+ }
+
+ while (i < len - 1 && buf[i] == '\n')
+ i++;
+
+ for (; i < len; i = k) {
+ for (k = i; k < len && buf[k] != '\n'; k++)
+ ; /* do nothing */
+ k++;
+
+ if ((buf[k] == ' ' || buf[k] == '\t') && !first)
+ continue;
+
+ first = 0;
+
+ for (j = 0; i + j < len; j++) {
+ ch = buf[i + j];
+ if (ch == ':')
+ break;
+ if (isalnum(ch) ||
+ (ch == '-'))
+ continue;
+ return 0;
+ }
+ }
+ return 1;
+}
+
+void append_signoff(struct strbuf *msgbuf, int ignore_footer)
+{
+ struct strbuf sob = STRBUF_INIT;
+ int i;
+
+ strbuf_addstr(&sob, sign_off_header);
+ strbuf_addstr(&sob, fmt_name(getenv("GIT_COMMITTER_NAME"),
+ getenv("GIT_COMMITTER_EMAIL")));
+ strbuf_addch(&sob, '\n');
+ for (i = msgbuf->len - 1 - ignore_footer; i > 0 && msgbuf->buf[i - 1] != '\n'; i--)
+ ; /* do nothing */
+ if (prefixcmp(msgbuf->buf + i, sob.buf)) {
+ if (!i || !ends_rfc2822_footer(msgbuf, ignore_footer))
+ strbuf_splice(msgbuf, msgbuf->len - ignore_footer, 0, "\n", 1);
+ strbuf_splice(msgbuf, msgbuf->len - ignore_footer, 0, sob.buf, sob.len);
+ }
+ strbuf_release(&sob);
+}
View
4 sequencer.h
@@ -49,4 +49,8 @@ extern void remove_sequencer_state(void);
int sequencer_pick_revisions(struct replay_opts *opts);
+extern const char sign_off_header[];
+
+void append_signoff(struct strbuf *msgbuf, int ignore_footer);
+
#endif
View
32 t/t3507-cherry-pick-conflict.sh
@@ -30,6 +30,7 @@ test_expect_success setup '
test_commit initial foo a &&
test_commit base foo b &&
test_commit picked foo c &&
+ test_commit --signoff picked-signed foo d &&
git config advice.detachedhead false
'
@@ -340,4 +341,35 @@ test_expect_success 'revert conflict, diff3 -m style' '
test_cmp expected actual
'
+test_expect_success 'failed cherry-pick does not forget -s' '
+ pristine_detach initial &&
+ test_must_fail git cherry-pick -s picked &&
+ test_i18ngrep -e "Signed-off-by" .git/MERGE_MSG
+'
+
+test_expect_success 'commit after failed cherry-pick does not add duplicated -s' '
+ pristine_detach initial &&
+ test_must_fail git cherry-pick -s picked-signed &&
+ git commit -a -s &&
+ test $(git show -s |grep -c "Signed-off-by") = 1
+'
+
+test_expect_success 'commit after failed cherry-pick adds -s at the right place' '
+ pristine_detach initial &&
+ test_must_fail git cherry-pick picked &&
+ git commit -a -s &&
+ pwd &&
+ cat <<EOF > expected &&
+picked
+
+Signed-off-by: C O Mitter <committer@example.com>
+
+Conflicts:
+ foo
+EOF
+
+ git show -s --pretty=format:%B > actual &&
+ test_cmp expected actual
+'
+
test_done
View
6 t/t3510-cherry-pick-sequence.sh
@@ -410,7 +410,7 @@ test_expect_success '--continue respects -x in first commit in multi-pick' '
grep "cherry picked from.*$picked" msg
'
-test_expect_success '--signoff is not automatically propagated to resolved conflict' '
+test_expect_failure '--signoff is automatically propagated to resolved conflict' '
pristine_detach initial &&
test_expect_code 1 git cherry-pick --signoff base..anotherpick &&
echo "c" >foo &&
@@ -428,7 +428,7 @@ test_expect_success '--signoff is not automatically propagated to resolved confl
grep "Signed-off-by:" anotherpick_msg
'
-test_expect_success '--signoff dropped for implicit commit of resolution, multi-pick case' '
+test_expect_failure '--signoff dropped for implicit commit of resolution, multi-pick case' '
pristine_detach initial &&
test_must_fail git cherry-pick -s picked anotherpick &&
echo c >foo &&
@@ -441,7 +441,7 @@ test_expect_success '--signoff dropped for implicit commit of resolution, multi-
! grep Signed-off-by: msg
'
-test_expect_success 'sign-off needs to be reaffirmed after conflict resolution, single-pick case' '
+test_expect_failure 'sign-off needs to be reaffirmed after conflict resolution, single-pick case' '
pristine_detach initial &&
test_must_fail git cherry-pick -s picked &&
echo c >foo &&
View
21 t/test-lib-functions.sh
@@ -144,19 +144,30 @@ test_pause () {
test_commit () {
notick= &&
- if test "z$1" = "z--notick"
- then
- notick=yes
+ signoff= &&
+ while test $# != 0
+ do
+ case "$1" in
+ --notick)
+ notick=yes
+ ;;
+ --signoff)
+ signoff="$1"
+ ;;
+ *)
+ break
+ ;;
+ esac
shift
- fi &&
+ done &&
file=${2:-"$1.t"} &&
echo "${3-$1}" > "$file" &&
git add "$file" &&
if test -z "$notick"
then
test_tick
fi &&
- git commit -m "$1" &&
+ git commit $signoff -m "$1" &&
git tag "$1"
}

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