just serve: Orchestrate remote build for uncached export targets

1 files changed, 22 insertions, 0 deletions

diff --git a/src/buildtool/serve_api/serve_service/target.hpp b/src/buildtool/serve_api/serve_service/target.hpp
index 64143776..5cb18426 100644
--- a/src/buildtool/serve_api/serve_service/target.hpp
+++ b/src/buildtool/serve_api/serve_service/target.hpp
@@ -22,6 +22,7 @@
 #include "gsl/gsl"
 #include "justbuild/just_serve/just_serve.grpc.pb.h"
 #include "src/buildtool/common/remote/remote_common.hpp"
+#include "src/buildtool/common/repository_config.hpp"
 #include "src/buildtool/execution_api/common/create_execution_api.hpp"
 #include "src/buildtool/execution_api/remote/config.hpp"
 #include "src/buildtool/logging/logger.hpp"
@@ -77,6 +78,27 @@ class TargetService final : public justbuild::just_serve::Target::Service {
     gsl::not_null<IExecutionApi::Ptr> const local_api_{
         CreateExecutionApi(std::nullopt)};
 
+    /// \brief Check if tree exists in the given repository.
+    [[nodiscard]] static auto IsTreeInRepo(
+        std::string const& tree_id,
+        std::filesystem::path const& repo_path,
+        std::shared_ptr<Logger> const& logger) -> bool;
+
+    /// \brief For a given tree id, find the known repository that can serve it.
+    [[nodiscard]] static auto GetServingRepository(
+        std::string const& tree_id,
+        std::shared_ptr<Logger> const& logger)
+        -> std::optional<std::filesystem::path>;
+
+    /// \brief Parse the stored repository configuration blob and populate the
+    /// RepositoryConfig instance.
+    /// \returns nullopt on success, error message as a string otherwise.
+    [[nodiscard]] static auto DetermineRoots(
+        std::string const& main_repo,
+        std::filesystem::path const& repo_config_path,
+        gsl::not_null<RepositoryConfig*> const& repository_config,
+        std::shared_ptr<Logger> const& logger) -> std::optional<std::string>;
+
     /// \brief Get the blob content at given path inside a Git tree.
     /// \returns If tree found, pair of "no-internal-errors" flag and content of
     /// blob at the path specified if blob exists, nullopt otherwise.