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Apply makeNotAllowedError to empty repos

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This commit is contained in:
Eelco Dolstra 2025-04-01 15:19:46 +02:00
parent 70dcd738ef
commit 67e957b636
6 changed files with 45 additions and 12 deletions
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12
src/libfetchers/git-utils.cc
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@ -1215,16 +1215,12 @@ ref<SourceAccessor> GitRepoImpl::getAccessor(
ref<SourceAccessor> GitRepoImpl::getAccessor(const WorkdirInfo & wd, bool exportIgnore, MakeNotAllowedError makeNotAllowedError)
{
auto self = ref<GitRepoImpl>(shared_from_this());
/* In case of an empty workdir, return an empty in-memory tree. We
cannot use AllowListSourceAccessor because it would return an
error for the root (and we can't add the root to the allow-list
since that would allow access to all its children). */
ref<SourceAccessor> fileAccessor =
wd.files.empty()
? makeEmptySourceAccessor()
: AllowListSourceAccessor::create(
AllowListSourceAccessor::create(
makeFSSourceAccessor(path),
std::set<CanonPath> { wd.files },
std::set<CanonPath>{ wd.files },
// Always allow access to the root, but not its children.
std::unordered_set<CanonPath>{CanonPath::root},
std::move(makeNotAllowedError)).cast<SourceAccessor>();
if (exportIgnore)
return make_ref<GitExportIgnoreSourceAccessor>(self, fileAccessor, std::nullopt);