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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/ops_maps/repo_fetch_map.hpp"
#include "src/buildtool/execution_api/local/local_cas.hpp"
#include "src/buildtool/file_system/file_storage.hpp"
#include "src/other_tools/just_mr/progress_reporting/progress.hpp"
#include "src/other_tools/just_mr/progress_reporting/statistics.hpp"
#include "src/other_tools/just_mr/utils.hpp"
auto CreateRepoFetchMap(gsl::not_null<ContentCASMap*> const& content_cas_map,
std::filesystem::path const& fetch_dir,
std::size_t jobs) -> RepoFetchMap {
auto fetch_repo = [content_cas_map, fetch_dir](auto ts,
auto setter,
auto logger,
auto /* unused */,
auto const& key) {
// get corresponding distfile
auto distfile =
(key.archive.distfile ? key.archive.distfile.value()
: std::filesystem::path(key.archive.fetch_url)
.filename()
.string());
// if archive available as a git tree ID stored to file,
// that's good enough, as it means it needs no fetching
auto tree_id_file = JustMR::Utils::GetArchiveTreeIDFile(
key.repo_type, key.archive.content);
if (not FileSystemManager::Exists(tree_id_file)) {
// start work reporting
JustMRProgress::Instance().TaskTracker().Start(key.archive.origin);
JustMRStatistics::Instance().IncrementQueuedCounter();
// make sure content is in CAS
content_cas_map->ConsumeAfterKeysReady(
ts,
{key.archive},
[fetch_dir,
content = key.archive.content,
distfile,
origin = key.archive.origin,
setter,
logger]([[maybe_unused]] auto const& values) {
// content is now in CAS
// copy content from CAS into fetch_dir
auto const& casf = LocalCAS<ObjectType::File>::Instance();
auto content_path =
casf.BlobPath(ArtifactDigest(content, 0, false));
if (content_path) {
auto target_name = fetch_dir / distfile;
if (FileSystemManager::Exists(target_name)) {
std::filesystem::permissions(
target_name,
std::filesystem::perms::owner_write,
std::filesystem::perm_options::add);
}
if (not FileSystemManager::CopyFile(*content_path,
target_name)) {
(*logger)(fmt::format(
"Failed to copy content {} from CAS "
"to {}",
content,
target_name.string()),
/*fatal=*/true);
return;
}
// success
(*setter)(true);
// report work done
JustMRProgress::Instance().TaskTracker().Stop(origin);
JustMRStatistics::Instance().IncrementExecutedCounter();
}
else {
(*logger)(
fmt::format("Content {} could not be found in CAS",
content),
/*fatal=*/true);
return;
}
},
[logger, content = key.archive.content](auto const& msg,
bool fatal) {
(*logger)(
fmt::format("While ensuring content {} is in CAS:\n{}",
content,
msg),
fatal);
});
}
else {
// copy content from CAS into fetch_dir
auto const& casf = LocalCAS<ObjectType::File>::Instance();
auto content_path =
casf.BlobPath(ArtifactDigest(key.archive.content, 0, false));
if (content_path) {
auto target_name = fetch_dir / distfile;
if (FileSystemManager::Exists(target_name)) {
std::filesystem::permissions(
target_name,
std::filesystem::perms::owner_write,
std::filesystem::perm_options::add);
}
if (not FileSystemManager::CopyFile(*content_path,
target_name)) {
(*logger)(fmt::format("Failed to copy content {} from CAS "
"to {}",
key.archive.content,
target_name.string()),
/*fatal=*/true);
return;
}
// success
(*setter)(true);
// report cache hit
JustMRStatistics::Instance().IncrementCacheHitsCounter();
}
else {
(*logger)(fmt::format("Content {} could not be found in CAS",
key.archive.content),
/*fatal=*/true);
return;
}
}
};
return AsyncMapConsumer<ArchiveRepoInfo, bool>(fetch_repo, jobs);
}
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