From a8112042b57b7a1be8b37cce46d279fd0ff9e861 Mon Sep 17 00:00:00 2001
From: Maksim Denisov <denisov.maksim@huawei.com>
Date: Mon, 18 Nov 2024 16:36:30 +0100
Subject: Rename MRApiUtils to RehashUtils

---
 src/buildtool/execution_api/serve/utils.cpp | 118 ----------------------------
 1 file changed, 118 deletions(-)
 delete mode 100644 src/buildtool/execution_api/serve/utils.cpp

(limited to 'src/buildtool/execution_api/serve/utils.cpp')

diff --git a/src/buildtool/execution_api/serve/utils.cpp b/src/buildtool/execution_api/serve/utils.cpp
deleted file mode 100644
index 39c4f7d3..00000000
--- a/src/buildtool/execution_api/serve/utils.cpp
+++ /dev/null
@@ -1,118 +0,0 @@
-// Copyright 2024 Huawei Cloud Computing Technology Co., Ltd.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include "src/buildtool/execution_api/serve/utils.hpp"
-
-#include <cstddef>  // std::size_t
-#include <filesystem>
-#include <system_error>
-#include <utility>  // std::move
-
-#include "fmt/core.h"
-#include "src/buildtool/crypto/hash_function.hpp"
-#include "src/buildtool/file_system/file_system_manager.hpp"
-#include "src/buildtool/storage/fs_utils.hpp"
-
-namespace MRApiUtils {
-
-auto ReadRehashedDigest(ArtifactDigest const& digest,
-                        StorageConfig const& source_config,
-                        StorageConfig const& target_config,
-                        bool from_git) noexcept
-    -> expected<std::optional<Artifact::ObjectInfo>, std::string> {
-    // check for mapping file in all generations
-    std::size_t generation = 0;
-    std::optional<std::filesystem::path> rehash_id_file = std::nullopt;
-    auto const compat_hash_type = target_config.hash_function.GetType();
-    for (; generation < source_config.num_generations; ++generation) {
-        auto path = StorageUtils::GetRehashIDFile(source_config,
-                                                  compat_hash_type,
-                                                  digest.hash(),
-                                                  from_git,
-                                                  generation);
-        if (FileSystemManager::Exists(path)) {
-            rehash_id_file = std::move(path);
-            break;  // found the generation
-        }
-    }
-    if (rehash_id_file) {
-        // read id file
-        auto compat_obj_str = FileSystemManager::ReadFile(*rehash_id_file);
-        if (not compat_obj_str) {
-            return unexpected{fmt::format("failed to read rehash id file {}",
-                                          rehash_id_file->string())};
-        }
-        // get artifact object from content
-        auto compat_obj =
-            Artifact::ObjectInfo::FromString(compat_hash_type, *compat_obj_str);
-        if (not compat_obj) {
-            // handle nullopt value explicitly
-            return unexpected{
-                fmt::format("failed to read rehashed artifact from id file {}",
-                            rehash_id_file->string())};
-        }
-        // ensure the id file is in generation 0 for future calls
-        if (generation != 0) {
-            auto dest_id_file = StorageUtils::GetRehashIDFile(
-                source_config, compat_hash_type, digest.hash(), from_git);
-            auto ok = FileSystemManager::CreateFileHardlink(*rehash_id_file,
-                                                            dest_id_file);
-            if (not ok) {
-                auto const& err = ok.error();
-                if (err != std::errc::too_many_links) {
-                    return unexpected{
-                        fmt::format("failed to link rehash id file {}:\n{} {}",
-                                    dest_id_file.string(),
-                                    err.value(),
-                                    err.message())};
-                }
-                // if too many links reported, write id file ourselves
-                if (not StorageUtils::WriteTreeIDFile(dest_id_file,
-                                                      *compat_obj_str)) {
-                    return unexpected{
-                        fmt::format("failed to write rehash id file {}",
-                                    dest_id_file.string())};
-                }
-            }
-        }
-        return std::move(compat_obj);  // not dereferenced to assist type
-                                       // deduction in variant
-    }
-    // no mapping file found
-    return std::optional<Artifact::ObjectInfo>{std::nullopt};
-}
-
-auto StoreRehashedDigest(ArtifactDigest const& source_digest,
-                         ArtifactDigest const& target_digest,
-                         ObjectType obj_type,
-                         StorageConfig const& source_config,
-                         StorageConfig const& target_config,
-                         bool from_git) noexcept -> std::optional<std::string> {
-    // write mapping
-    auto const rehash_id_file =
-        StorageUtils::GetRehashIDFile(source_config,
-                                      target_config.hash_function.GetType(),
-                                      source_digest.hash(),
-                                      from_git);
-    if (not StorageUtils::WriteTreeIDFile(
-            rehash_id_file,
-            Artifact::ObjectInfo{.digest = target_digest, .type = obj_type}
-                .ToString())) {
-        return fmt::format("failed to write rehash id to file {}",
-                           rehash_id_file.string());
-    }
-    return std::nullopt;  // a-ok
-}
-
-}  // namespace MRApiUtils
-- 
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