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Revert "Merge branch 'fc/transport-helper-sync-error-fix'"

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This reverts commit d508e4a8e2,
reversing changes made to e42552135a.

The author of the original topic says he broke the upcoming 2.0
release with something that relates to "synchronization crash
regression" while refusing to give further specifics, so this would
unfortunately be the safest option for the upcoming release.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Junio C Hamano 2014-05-14 12:06:35 -07:00
parent b28aeab4ec
commit 10e1feebb4
3 changed files with 37 additions and 71 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
Documentation/RelNotes/2.0.0.txt
View File

@ -88,10 +88,6 @@ UI, Workflows & Features
* "git grep" learned to behave in a way similar to native grep when
"-h" (no header) and "-c" (count) options are given.
* "git push" via transport-helper interface (e.g. remote-hg) has
been updated to allow forced ref updates in a way similar to the
natively supported transports.
* The "simple" mode is the default for "git push".
* "git add -u" and "git add -A", when run without any pathspec, is a

31
t/t5801-remote-helpers.sh
View File

@ -212,30 +212,19 @@ test_expect_success 'push update refs failure' '
echo "update fail" >>file &&
git commit -a -m "update fail" &&
git rev-parse --verify testgit/origin/heads/update >expect &&
test_expect_code 1 env GIT_REMOTE_TESTGIT_FAILURE="non-fast forward" \
git push origin update &&
GIT_REMOTE_TESTGIT_PUSH_ERROR="non-fast forward" &&
export GIT_REMOTE_TESTGIT_PUSH_ERROR &&
test_expect_code 1 git push origin update &&
git rev-parse --verify testgit/origin/heads/update >actual &&
test_cmp expect actual
)
'
clean_mark () {
cut -f 2 -d ' ' "$1" |
git cat-file --batch-check |
grep commit |
sort >$(basename "$1")
}
cmp_marks () {
test_when_finished "rm -rf git.marks testgit.marks" &&
clean_mark ".git/testgit/$1/git.marks" &&
clean_mark ".git/testgit/$1/testgit.marks" &&
test_cmp git.marks testgit.marks
}
test_expect_success 'proper failure checks for fetching' '
(cd local &&
test_must_fail env GIT_REMOTE_TESTGIT_FAILURE=1 git fetch 2>error &&
(GIT_REMOTE_TESTGIT_FAILURE=1 &&
export GIT_REMOTE_TESTGIT_FAILURE &&
cd local &&
test_must_fail git fetch 2> error &&
cat error &&
grep -q "Error while running fast-import" error
)
@ -243,11 +232,7 @@ test_expect_success 'proper failure checks for fetching' '
test_expect_success 'proper failure checks for pushing' '
(cd local &&
git checkout -b crash master &&
echo crash >>file &&
git commit -a -m crash &&
test_must_fail env GIT_REMOTE_TESTGIT_FAILURE=1 git push --all &&
cmp_marks origin
test_must_fail env GIT_REMOTE_TESTGIT_FAILURE=1 git push --all
)
'

73
transport-helper.c
View File

@ -58,7 +58,7 @@ static int recvline_fh(FILE *helper, struct strbuf *buffer, const char *name)
if (strbuf_getline(buffer, helper, '\n') == EOF) {
if (debug)
fprintf(stderr, "Debug: Remote helper quit.\n");
return 1;
exit(128);
}
if (debug)
@ -71,6 +71,12 @@ static int recvline(struct helper_data *helper, struct strbuf *buffer)
return recvline_fh(helper->out, buffer, helper->name);
}
static void xchgline(struct helper_data *helper, struct strbuf *buffer)
{
sendline(helper, buffer);
recvline(helper, buffer);
}
static void write_constant(int fd, const char *str)
{
if (debug)
@ -157,8 +163,7 @@ static struct child_process *get_helper(struct transport *transport)
while (1) {
const char *capname;
int mandatory = 0;
if (recvline(data, &buf))
exit(128);
recvline(data, &buf);
if (!*buf.buf)
break;
@ -195,9 +200,15 @@ static struct child_process *get_helper(struct transport *transport)
} else if (!strcmp(capname, "signed-tags")) {
data->signed_tags = 1;
} else if (starts_with(capname, "export-marks ")) {
data->export_marks = xstrdup(capname + strlen("export-marks "));
struct strbuf arg = STRBUF_INIT;
strbuf_addstr(&arg, "--export-marks=");
strbuf_addstr(&arg, capname + strlen("export-marks "));
data->export_marks = strbuf_detach(&arg, NULL);
} else if (starts_with(capname, "import-marks")) {
data->import_marks = xstrdup(capname + strlen("import-marks "));
struct strbuf arg = STRBUF_INIT;
strbuf_addstr(&arg, "--import-marks=");
strbuf_addstr(&arg, capname + strlen("import-marks "));
data->import_marks = strbuf_detach(&arg, NULL);
} else if (starts_with(capname, "no-private-update")) {
data->no_private_update = 1;
} else if (mandatory) {
@ -296,9 +307,7 @@ static int set_helper_option(struct transport *transport,
quote_c_style(value, &buf, NULL, 0);
strbuf_addch(&buf, '\n');
sendline(data, &buf);
if (recvline(data, &buf))
exit(128);
xchgline(data, &buf);
if (!strcmp(buf.buf, "ok"))
ret = 0;
@ -370,8 +379,7 @@ static int fetch_with_fetch(struct transport *transport,
sendline(data, &buf);
while (1) {
if (recvline(data, &buf))
exit(128);
recvline(data, &buf);
if (starts_with(buf.buf, "lock ")) {
const char *name = buf.buf + 5;
@ -422,8 +430,6 @@ static int get_exporter(struct transport *transport,
struct helper_data *data = transport->data;
struct child_process *helper = get_helper(transport);
int argc = 0, i;
struct strbuf tmp = STRBUF_INIT;
memset(fastexport, 0, sizeof(*fastexport));
/* we need to duplicate helper->in because we want to use it after
@ -434,14 +440,10 @@ static int get_exporter(struct transport *transport,
fastexport->argv[argc++] = "--use-done-feature";
fastexport->argv[argc++] = data->signed_tags ?
"--signed-tags=verbatim" : "--signed-tags=warn-strip";
if (data->export_marks) {
strbuf_addf(&tmp, "--export-marks=%s.tmp", data->export_marks);
fastexport->argv[argc++] = strbuf_detach(&tmp, NULL);
}
if (data->import_marks) {
strbuf_addf(&tmp, "--import-marks=%s", data->import_marks);
fastexport->argv[argc++] = strbuf_detach(&tmp, NULL);
}
if (data->export_marks)
fastexport->argv[argc++] = data->export_marks;
if (data->import_marks)
fastexport->argv[argc++] = data->import_marks;
for (i = 0; i < revlist_args->nr; i++)
fastexport->argv[argc++] = revlist_args->items[i].string;
@ -561,9 +563,7 @@ static int process_connect_service(struct transport *transport,
goto exit;
sendline(data, &cmdbuf);
if (recvline_fh(input, &cmdbuf, name))
exit(128);
recvline_fh(input, &cmdbuf, name);
if (!strcmp(cmdbuf.buf, "")) {
data->no_disconnect_req = 1;
if (debug)
@ -739,22 +739,16 @@ static int push_update_ref_status(struct strbuf *buf,
return !(status == REF_STATUS_OK);
}
static int push_update_refs_status(struct helper_data *data,
static void push_update_refs_status(struct helper_data *data,
struct ref *remote_refs,
int flags)
{
struct strbuf buf = STRBUF_INIT;
struct ref *ref = remote_refs;
int ret = 0;
for (;;) {
char *private;
if (recvline(data, &buf)) {
ret = 1;
break;
}
recvline(data, &buf);
if (!buf.len)
break;
@ -772,7 +766,6 @@ static int push_update_refs_status(struct helper_data *data,
free(private);
}
strbuf_release(&buf);
return ret;
}
static int push_refs_with_push(struct transport *transport,
@ -853,7 +846,8 @@ static int push_refs_with_push(struct transport *transport,
sendline(data, &buf);
strbuf_release(&buf);
return push_update_refs_status(data, remote_refs, flags);
push_update_refs_status(data, remote_refs, flags);
return 0;
}
static int push_refs_with_export(struct transport *transport,
@ -911,15 +905,7 @@ static int push_refs_with_export(struct transport *transport,
if (finish_command(&exporter))
die("Error while running fast-export");
if (push_update_refs_status(data, remote_refs, flags))
return 1;
if (data->export_marks) {
strbuf_addf(&buf, "%s.tmp", data->export_marks);
rename(buf.buf, data->export_marks);
strbuf_release(&buf);
}
push_update_refs_status(data, remote_refs, flags);
return 0;
}
@ -988,8 +974,7 @@ static struct ref *get_refs_list(struct transport *transport, int for_push)
while (1) {
char *eov, *eon;
if (recvline(data, &buf))
exit(128);
recvline(data, &buf);
if (!*buf.buf)
break;