This fixes a bug that occurs when you combine partial clone and
uploadpack.packobjectshook. You can reproduce it as follows:
git clone -u 'git -c uploadpack.allowfilter '\
'-c uploadpack.packobjectshook=env '\
'upload-pack' --filter=blob:none --no-local \
src.git dst.git
Be careful with the line endings because this has a long quoted string
as the -u argument.
The error I get when I run this is:
Cloning into '/tmp/broken'...
remote: fatal: invalid filter-spec ''blob:none''
error: git upload-pack: git-pack-objects died with error.
fatal: git upload-pack: aborting due to possible repository corruption on the remote side.
remote: aborting due to possible repository corruption on the remote side.
fatal: early EOF
fatal: index-pack failed
The problem is an unnecessary and harmful layer of quoting. I tried
digging through the history of this function and I think this quoting
was there from the start. My best guess is that it stems from a
misunderstanding what use_shell=1 means. The code seems to assume it
means "arguments get joined into one big string, then fed to /bin/sh".
But that is not what it means: use_shell=1 means that the first
argument in the arguments array may be a shell script and if so should
be passed to /bin/sh. All other arguments are passed as normal
arguments.
The solution is simple: never quote the filter spec.
This commit removes the conditional quoting and adds a test for
partial clone in t5544.
---
t/t5544-pack-objects-hook.sh | 9 +++++++++
upload-pack.c | 9 +--------
2 files changed, 10 insertions(+), 8 deletions(-)
diff --git a/t/t5544-pack-objects-hook.sh b/t/t5544-pack-objects-hook.sh
index 4357af1525..f5ba663d64 100755
--- a/t/t5544-pack-objects-hook.sh
+++ b/t/t5544-pack-objects-hook.sh
@@ -59,4 +59,13 @@ test_expect_success 'hook does not run from repo config' '
test_path_is_missing .git/hook.stdout
'
+test_expect_success 'hook works with partial clone' '
+ clear_hook_results &&
+ test_config_global uploadpack.packObjectsHook ./hook &&
+ test_config_global uploadpack.allowFilter true &&
+ git clone --bare --no-local --filter=blob:none . dst.git &&
+ git -C dst.git rev-list --objects --missing=print HEAD >objects &&
+ grep "^?" objects
+'
+
test_done
diff --git a/upload-pack.c b/upload-pack.c
index 3b66bf92ba..eae1fdbc55 100644
--- a/upload-pack.c
+++ b/upload-pack.c
@@ -305,14 +305,7 @@ static void create_pack_file(struct upload_pack_data *pack_data,
if (pack_data->filter_options.choice) {
const char *spec =
expand_list_objects_filter_spec(&pack_data->filter_options);
- if (pack_objects.use_shell) {
- struct strbuf buf = STRBUF_INIT;
- sq_quote_buf(&buf, spec);
- strvec_pushf(&pack_objects.args, "--filter=%s", buf.buf);
- strbuf_release(&buf);
- } else {
- strvec_pushf(&pack_objects.args, "--filter=%s", spec);
- }
+ strvec_pushf(&pack_objects.args, "--filter=%s", spec);
}
if (uri_protocols) {
for (i = 0; i < uri_protocols->nr; i++)
--
2.30.0
