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Merge branch 'jc/builtin-am-signoff-regression-fix'

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Recent "git am" had regression when adding a Signed-off-by line
with its "-s" option by an unintended tightening of how an existing
trailer block is detected.

* jc/builtin-am-signoff-regression-fix:
  am: match --signoff to the original scripted version
This commit is contained in:
Junio C Hamano 2015-09-08 15:34:57 -07:00
commit d6a2b05cbb
2 changed files with 77 additions and 2 deletions
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31
builtin/am.c
View File

@ -1207,6 +1207,33 @@ static void NORETURN die_user_resolve(const struct am_state *state)
exit(128);
}
static void am_signoff(struct strbuf *sb)
{
char *cp;
struct strbuf mine = STRBUF_INIT;
/* Does it end with our own sign-off? */
strbuf_addf(&mine, "\n%s%s\n",
sign_off_header,
fmt_name(getenv("GIT_COMMITTER_NAME"),
getenv("GIT_COMMITTER_EMAIL")));
if (mine.len < sb->len &&
!strcmp(mine.buf, sb->buf + sb->len - mine.len))
goto exit; /* no need to duplicate */
/* Does it have any Signed-off-by: in the text */
for (cp = sb->buf;
cp && *cp && (cp = strstr(cp, sign_off_header)) != NULL;
cp = strchr(cp, '\n')) {
if (sb->buf == cp || cp[-1] == '\n')
break;
}
strbuf_addstr(sb, mine.buf + !!cp);
exit:
strbuf_release(&mine);
}
/**
* Appends signoff to the "msg" field of the am_state.
*/
@ -1215,7 +1242,7 @@ static void am_append_signoff(struct am_state *state)
struct strbuf sb = STRBUF_INIT;
strbuf_attach(&sb, state->msg, state->msg_len, state->msg_len);
append_signoff(&sb, 0, 0);
am_signoff(&sb);
state->msg = strbuf_detach(&sb, &state->msg_len);
}
@ -1319,7 +1346,7 @@ static int parse_mail(struct am_state *state, const char *mail)
stripspace(&msg, 0);
if (state->signoff)
append_signoff(&msg, 0, 0);
am_signoff(&msg);
assert(!state->author_name);
state->author_name = strbuf_detach(&author_name, NULL);

48
t/t4150-am.sh
View File

@ -909,4 +909,52 @@ test_expect_success 'am -3 works with rerere' '
test_cmp expect file
'
test_expect_success 'am -s unexpected trailer block' '
rm -fr .git/rebase-apply &&
git reset --hard &&
echo signed >file &&
git add file &&
cat >msg <<-EOF &&
subject here
Signed-off-by: $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL>
[jc: tweaked log message]
Signed-off-by: J C H <j@c.h>
EOF
git commit -F msg &&
git cat-file commit HEAD | sed -e '1,/^$/d' >original &&
git format-patch --stdout -1 >patch &&
git reset --hard HEAD^ &&
git am -s patch &&
(
cat original &&
echo "Signed-off-by: $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL>"
) >expect &&
git cat-file commit HEAD | sed -e '1,/^$/d' >actual &&
test_cmp expect actual &&
cat >msg <<-\EOF &&
subject here
We make sure that there is a blank line between the log
message proper and Signed-off-by: line added.
EOF
git reset HEAD^ &&
git commit -F msg file &&
git cat-file commit HEAD | sed -e '1,/^$/d' >original &&
git format-patch --stdout -1 >patch &&
git reset --hard HEAD^ &&
git am -s patch &&
(
cat original &&
echo &&
echo "Signed-off-by: $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL>"
) >expect &&
git cat-file commit HEAD | sed -e '1,/^$/d' >actual &&
test_cmp expect actual
'
test_done