From b00660a429e79d9df0d447e3e9fbb9bf9f932d3c Mon Sep 17 00:00:00 2001
From: Paul Cristian Sarbu <paul.cristian.sarbu@huawei.com>
Date: Thu, 21 Sep 2023 15:15:22 +0200
Subject: just serve: Implement service to get Git tree of an archive content

Also adds missing TARGETS file in serve_api folder and ensures
code comments are consistent with the proto file.
---
 .../serve_api/serve_service/source_tree.hpp        | 57 +++++++++++++++++++++-
 1 file changed, 55 insertions(+), 2 deletions(-)

(limited to 'src/buildtool/serve_api/serve_service/source_tree.hpp')

diff --git a/src/buildtool/serve_api/serve_service/source_tree.hpp b/src/buildtool/serve_api/serve_service/source_tree.hpp
index a74de455..030d33ee 100644
--- a/src/buildtool/serve_api/serve_service/source_tree.hpp
+++ b/src/buildtool/serve_api/serve_service/source_tree.hpp
@@ -17,6 +17,7 @@
 
 #include <filesystem>
 #include <memory>
+#include <mutex>
 #include <optional>
 #include <string>
 #include <vector>
@@ -27,22 +28,38 @@
 #include "src/buildtool/execution_api/common/create_execution_api.hpp"
 #include "src/buildtool/execution_api/common/execution_api.hpp"
 #include "src/buildtool/execution_api/remote/config.hpp"
+#include "src/buildtool/file_system/symlinks_map/pragma_special.hpp"
+#include "src/buildtool/file_system/symlinks_map/resolve_symlinks_map.hpp"
 #include "src/buildtool/logging/logger.hpp"
 
 class SourceTreeService final
     : public justbuild::just_serve::SourceTree::Service {
 
   public:
+    using ServeCommitTreeResponse =
+        ::justbuild::just_serve::ServeCommitTreeResponse;
+    using ServeArchiveTreeResponse =
+        ::justbuild::just_serve::ServeArchiveTreeResponse;
+
     // Retrieve the Git-subtree identifier from a given Git commit.
     //
     // There are no method-specific errors.
     auto ServeCommitTree(
         ::grpc::ServerContext* context,
         const ::justbuild::just_serve::ServeCommitTreeRequest* request,
-        ::justbuild::just_serve::ServeCommitTreeResponse* response)
-        -> ::grpc::Status override;
+        ServeCommitTreeResponse* response) -> ::grpc::Status override;
+
+    // Retrieve the Git-subtree identifier for the tree obtained
+    // by unpacking an archive with a given blob identifier.
+    //
+    // There are no method-specific errors.
+    auto ServeArchiveTree(
+        ::grpc::ServerContext* context,
+        const ::justbuild::just_serve::ServeArchiveTreeRequest* request,
+        ServeArchiveTreeResponse* response) -> ::grpc::Status override;
 
   private:
+    mutable std::shared_mutex mutex_;
     std::shared_ptr<Logger> logger_{std::make_shared<Logger>("serve-service")};
 
     // remote execution endpoint
@@ -51,12 +68,48 @@ class SourceTreeService final
     // local api
     gsl::not_null<IExecutionApi::Ptr> const local_api_{
         CreateExecutionApi(std::nullopt)};
+    // symlinks resolver map
+    ResolveSymlinksMap resolve_symlinks_map_{CreateResolveSymlinksMap()};
 
     [[nodiscard]] static auto GetSubtreeFromCommit(
         std::filesystem::path const& repo_path,
         std::string const& commit,
         std::string const& subdir,
         std::shared_ptr<Logger> const& logger) -> std::optional<std::string>;
+
+    [[nodiscard]] static auto GetSubtreeFromTree(
+        std::filesystem::path const& repo_path,
+        std::string const& tree_id,
+        std::string const& subdir,
+        std::shared_ptr<Logger> const& logger) -> std::optional<std::string>;
+
+    [[nodiscard]] static auto GetBlobFromRepo(
+        std::filesystem::path const& repo_path,
+        std::string const& blob_id,
+        std::shared_ptr<Logger> const& logger) -> std::optional<std::string>;
+
+    [[nodiscard]] auto SyncArchive(std::string const& tree_id,
+                                   std::filesystem::path const& repo_path,
+                                   bool sync_tree,
+                                   ServeArchiveTreeResponse* response)
+        -> ::grpc::Status;
+
+    [[nodiscard]] auto ResolveContentTree(
+        std::string const& tree_id,
+        std::filesystem::path const& repo_path,
+        std::optional<PragmaSpecial> const& resolve_special,
+        bool sync_tree,
+        ServeArchiveTreeResponse* response) -> ::grpc::Status;
+
+    [[nodiscard]] auto ImportToGit(
+        std::filesystem::path const& unpack_path,
+        std::filesystem::path const& archive_tree_id_file,
+        std::string const& content,
+        std::string const& archive_type,
+        std::string const& subdir,
+        std::optional<PragmaSpecial> const& resolve_special,
+        bool sync_tree,
+        ServeArchiveTreeResponse* response) -> ::grpc::Status;
 };
 
 #endif  // INCLUDED_SRC_BUILDTOOL_SERVE_API_SERVE_SERVICE_SOURCE_TREE_HPP
-- 
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