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// Copyright 2022 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/other_tools/root_maps/fpath_git_map.hpp"
#include "src/buildtool/execution_api/local/config.hpp"
#include "src/other_tools/just_mr/utils.hpp"
#include "src/utils/cpp/tmp_dir.hpp"
auto CreateFilePathGitMap(
std::optional<std::string> const& current_subcmd,
gsl::not_null<CriticalGitOpMap*> const& critical_git_op_map,
gsl::not_null<ImportToGitMap*> const& import_to_git_map,
std::size_t jobs) -> FilePathGitMap {
auto dir_to_git = [current_subcmd, critical_git_op_map, import_to_git_map](
auto ts,
auto setter,
auto logger,
auto /*unused*/,
auto const& key) {
// setup wrapped logger
auto wrapped_logger = std::make_shared<AsyncMapConsumerLogger>(
[&logger](auto const& msg, bool fatal) {
(*logger)(
fmt::format("While getting repo root from path:\n{}", msg),
fatal);
});
// check if path is a part of a git repo
auto repo_root = GitRepo::GetRepoRootFromPath(
key, wrapped_logger); // static function
if (not repo_root) {
return;
}
if (not repo_root->empty()) { // if repo root found
auto git_cas = GitCAS::Open(*repo_root);
if (not git_cas) {
(*logger)(fmt::format("Could not open object database for "
"repository {}",
repo_root->string()),
/*fatal=*/true);
return;
}
auto git_repo = GitRepo::Open(git_cas); // link fake repo to odb
if (not git_repo) {
(*logger)(fmt::format("Could not open repository {}",
repo_root->string()),
/*fatal=*/true);
return;
}
// get head commit
GitOpKey op_key = {{
*repo_root, // target_path
"", // git_hash
"", // branch
},
GitOpType::GET_HEAD_ID};
critical_git_op_map->ConsumeAfterKeysReady(
ts,
{std::move(op_key)},
[fpath = key,
git_cas = std::move(git_cas),
repo_root = std::move(*repo_root),
setter,
logger](auto const& values) {
GitOpValue op_result = *values[0];
// check flag
if (not op_result.result) {
(*logger)("Get Git head id failed",
/*fatal=*/true);
return;
}
auto git_repo =
GitRepo::Open(git_cas); // link fake repo to odb
if (not git_repo) {
(*logger)(fmt::format("Could not open repository {}",
repo_root.string()),
/*fatal=*/true);
return;
}
// setup wrapped logger
auto wrapped_logger =
std::make_shared<AsyncMapConsumerLogger>(
[&logger](auto const& msg, bool fatal) {
(*logger)(
fmt::format("While getting subtree from "
"path:\n{}",
msg),
fatal);
});
// get tree id and return workspace root
auto tree_hash = git_repo->GetSubtreeFromPath(
fpath, *op_result.result, wrapped_logger);
if (not tree_hash) {
return;
}
// set the workspace root
(*setter)(nlohmann::json::array(
{"git tree", *tree_hash, repo_root}));
},
[logger, target_path = *repo_root](auto const& msg,
bool fatal) {
(*logger)(
fmt::format("While running critical Git op "
"GET_BRANCH_REFNAME for target {}:\n{}",
target_path.string(),
msg),
fatal);
});
}
else {
// warn if import to git is inefficient
if (current_subcmd) {
(*logger)(fmt::format("Warning: Inefficient Git import of file "
"path \'{}\'.\nPlease consider using "
"\'just-mr setup\' and \'just {}\' "
"separately to cache the output.",
key.string(),
*current_subcmd),
/*fatal=*/false);
}
// it's not a git repo, so import it to git cache
auto tmp_dir = JustMR::Utils::CreateTypedTmpDir("file");
if (not tmp_dir) {
(*logger)("Failed to create import-to-git tmp directory!",
/*fatal=*/true);
return;
}
// copy folder content to tmp dir
if (not FileSystemManager::CopyDirectoryImpl(
key, tmp_dir->GetPath(), /*recursively=*/true)) {
(*logger)(
fmt::format("Failed to copy content from directory {}",
key.string()),
/*fatal=*/true);
return;
}
// do import to git
CommitInfo c_info{tmp_dir->GetPath(), "file", key};
import_to_git_map->ConsumeAfterKeysReady(
ts,
{std::move(c_info)},
// tmp_dir passed, to ensure folder is not removed until import
// to git is done
[tmp_dir, setter, logger](auto const& values) {
// check for errors
if (not values[0]->second) {
(*logger)("Importing to git failed",
/*fatal=*/true);
return;
}
// we only need the tree
std::string tree = values[0]->first;
// set the workspace root
(*setter)(nlohmann::json::array(
{"git tree", tree, JustMR::Utils::GetGitCacheRoot()}));
},
[logger, target_path = key](auto const& msg, bool fatal) {
(*logger)(
fmt::format("While importing target {} to git:\n{}",
target_path.string(),
msg),
fatal);
});
}
};
return AsyncMapConsumer<std::filesystem::path, nlohmann::json>(dir_to_git,
jobs);
}
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