GitRepo: Add blob lookup method

1 files changed, 14 insertions, 5 deletions

diff --git a/src/buildtool/file_system/git_repo.hpp b/src/buildtool/file_system/git_repo.hpp
index 9c31f21b..05bcfaf3 100644
--- a/src/buildtool/file_system/git_repo.hpp
+++ b/src/buildtool/file_system/git_repo.hpp
@@ -234,12 +234,21 @@ class GitRepo {
         -> std::optional<bool>;
 
     /// \brief Check if given blob ID is present in the directory structure of
-    /// the local repository and try to return it.
+    /// the local repository.
     /// Calling it from a fake repository allows thread-safe use.
-    /// Returns a pair of a success flag, stating that no errors occurred while
-    /// performing the libgit2 calls, and an optional string containing the
-    /// content of the blob, if the blob is found. It guarantees the logger is
-    /// called exactly once with fatal if failure.
+    /// Returns a status of blob presence, or nullopt if failure.
+    /// It guarantees the logger is called exactly once with fatal if failure.
+    [[nodiscard]] auto CheckBlobExists(std::string const& blob_id,
+                                       anon_logger_ptr const& logger) noexcept
+        -> std::optional<bool>;
+
+    /// \brief Check if given blob ID is present in the directory structure
+    /// of the local repository and try to return it. Calling it from a fake
+    /// repository allows thread-safe use. Returns a pair of a success flag,
+    /// stating that no errors occurred while performing the libgit2 calls,
+    /// and an optional string containing the content of the blob, if the
+    /// blob is found. It guarantees the logger is called exactly once with
+    /// fatal if failure.
     [[nodiscard]] auto TryReadBlob(std::string const& blob_id,
                                    anon_logger_ptr const& logger) noexcept
         -> std::pair<bool, std::optional<std::string>>;