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-rw-r--r--src/buildtool/file_system/file_root.hpp23
1 files changed, 23 insertions, 0 deletions
diff --git a/src/buildtool/file_system/file_root.hpp b/src/buildtool/file_system/file_root.hpp
index 872ae1ff..10b04c66 100644
--- a/src/buildtool/file_system/file_root.hpp
+++ b/src/buildtool/file_system/file_root.hpp
@@ -196,6 +196,29 @@ class FileRoot {
return true;
}
+ [[nodiscard]] auto AsKnownTree(std::string const& repository)
+ const noexcept -> std::optional<ArtifactDescription> {
+ if (Compatibility::IsCompatible()) {
+ return std::nullopt;
+ }
+ if (std::holds_alternative<tree_t>(data_)) {
+ try {
+ auto const& data = std::get<tree_t>(data_);
+ auto const& id = data->Hash();
+ auto const& size = data->Size();
+ if (size) {
+ return ArtifactDescription{
+ ArtifactDigest{id, *size, /*is_tree=*/true},
+ ObjectType::Tree,
+ repository};
+ }
+ } catch (...) {
+ return std::nullopt;
+ }
+ }
+ return std::nullopt;
+ }
+
[[nodiscard]] auto FilesIterator() const -> Iterator {
if (std::holds_alternative<pairs_t>(data_)) {
auto const& data = std::get<pairs_t>(data_);