From: "Shawn O. Pearce" <spearce@xxxxxxxxxxx>
The protocol between transport-helper.c and remote-curl requires
remote-curl to always print a blank line after the push command
has run. If the blank line is ommitted, transport-helper kills its
container process (the git push the user started) with exit(128)
and no message indicating a problem, assuming the helper already
printed reasonable error text to the console.
However if the remote rejects all branches with "ng" commands in the
report-status reply, send-pack terminates with non-zero status, and
in turn remote-curl exited with non-zero status before outputting
the blank line after the helper status printed by send-pack. No
error messages reach the user.
This caused users to see the following from git push over HTTP
when the remote side's update hook rejected the branch:
$ git push http://... master
Counting objects: 4, done.
Delta compression using up to 6 threads.
Compressing objects: 100% (2/2), done.
Writing objects: 100% (3/3), 301 bytes, done.
Total 3 (delta 0), reused 0 (delta 0)
$
Always print a blank line after the send-pack process terminates,
ensuring the helper status report (if it was output) will be
correctly parsed by the calling transport-helper.c. This ensures
the helper doesn't abort before the status report can be shown to
the user.
Signed-off-by: Shawn O. Pearce <spearce@xxxxxxxxxxx>
---
remote-curl.c | 9 +++++----
t/t5541-http-push.sh | 27 +++++++++++++++++++++++++++
2 files changed, 32 insertions(+), 4 deletions(-)
diff --git a/remote-curl.c b/remote-curl.c
index 48c20b8..25c1af7 100644
--- a/remote-curl.c
+++ b/remote-curl.c
@@ -805,7 +805,7 @@ static int push(int nr_spec, char **specs)
static void parse_push(struct strbuf *buf)
{
char **specs = NULL;
- int alloc_spec = 0, nr_spec = 0, i;
+ int alloc_spec = 0, nr_spec = 0, i, ret;
do {
if (!prefixcmp(buf->buf, "push ")) {
@@ -822,12 +822,13 @@ static void parse_push(struct strbuf *buf)
break;
} while (1);
- if (push(nr_spec, specs))
- exit(128); /* error already reported */
-
+ ret = push(nr_spec, specs);
printf("\n");
fflush(stdout);
+ if (ret)
+ exit(128); /* error already reported */
+
free_specs:
for (i = 0; i < nr_spec; i++)
free(specs[i]);
diff --git a/t/t5541-http-push.sh b/t/t5541-http-push.sh
index 9b85d42..c68cbf3 100755
--- a/t/t5541-http-push.sh
+++ b/t/t5541-http-push.sh
@@ -95,6 +95,31 @@ test_expect_success 'create and delete remote branch' '
test_must_fail git show-ref --verify refs/remotes/origin/dev
'
+cat >"$HTTPD_DOCUMENT_ROOT_PATH/test_repo.git/hooks/update" <<EOF
+#!/bin/sh
+exit 1
+EOF
+chmod a+x "$HTTPD_DOCUMENT_ROOT_PATH/test_repo.git/hooks/update"
+
+printf 'remote: error: hook declined to update refs/heads/dev2 \n' >exp
+cat >>exp <<EOF
+To http://127.0.0.1:$LIB_HTTPD_PORT/smart/test_repo.git
+ ! [remote rejected] dev2 -> dev2 (hook declined)
+error: failed to push some refs to 'http://127.0.0.1:5541/smart/test_repo.git'
+EOF
+
+test_expect_success 'rejected update prints status' '
+ cd "$ROOT_PATH"/test_repo_clone &&
+ git checkout -b dev2 &&
+ : >path4 &&
+ git add path4 &&
+ test_tick &&
+ git commit -m dev2 &&
+ git push origin dev2 2>act
+ test_cmp exp act
+'
+rm -f "$HTTPD_DOCUMENT_ROOT_PATH/test_repo.git/hooks/update"
+
cat >exp <<EOF
GET /smart/test_repo.git/info/refs?service=git-upload-pack HTTP/1.1 200
@@ -106,6 +131,8 @@ GET /smart/test_repo.git/info/refs?service=git-receive-pack HTTP/1.1 200
POST /smart/test_repo.git/git-receive-pack HTTP/1.1 200
GET /smart/test_repo.git/info/refs?service=git-receive-pack HTTP/1.1 200
POST /smart/test_repo.git/git-receive-pack HTTP/1.1 200
+GET /smart/test_repo.git/info/refs?service=git-receive-pack HTTP/1.1 200
+POST /smart/test_repo.git/git-receive-pack HTTP/1.1 200
EOF
test_expect_success 'used receive-pack service' '
sed -e "
--
1.7.9.rc2.124.g1c075
--
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