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// 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/other_tools/utils/parse_archive.hpp"
#include <filesystem>
#include <functional>
#include <memory>
#include <unordered_map>
#include <utility> // std::move
#include <vector>
#include "fmt/core.h"
#include "src/buildtool/build_engine/expression/expression.hpp"
#include "src/buildtool/crypto/hash_function.hpp"
#include "src/buildtool/crypto/hash_info.hpp"
#include "src/buildtool/file_system/symlinks/pragma_special.hpp"
#include "src/utils/cpp/path.hpp"
auto ParseArchiveContent(ExpressionPtr const& repo_desc,
std::string const& origin)
-> expected<ArchiveContent, std::string> {
// enforce mandatory fields
auto repo_desc_content = repo_desc->At("content");
if (not repo_desc_content) {
return unexpected<std::string>{
"Mandatory field \"content\" is missing"};
}
if (not repo_desc_content->get()->IsString()) {
return unexpected{
fmt::format("Unsupported value {} for mandatory field \"content\"",
repo_desc_content->get()->ToString())};
}
auto const repo_desc_hash_info =
HashInfo::Create(HashFunction::Type::GitSHA1,
repo_desc_content->get()->String(),
/*is_tree=*/false);
if (not repo_desc_hash_info) {
return unexpected{fmt::format(
"Unsupported value {} for mandatory field \"content\"\n{}",
repo_desc_content->get()->ToString(),
repo_desc_hash_info.error())};
}
auto repo_desc_fetch = repo_desc->At("fetch");
if (not repo_desc_fetch) {
return unexpected<std::string>{"Mandatory field \"fetch\" is missing"};
}
if (not repo_desc_fetch->get()->IsString()) {
return unexpected{
fmt::format("Unsupported value {} for mandatory field \"fetch\"",
repo_desc_fetch->get()->ToString())};
}
auto repo_desc_distfile = repo_desc->Get("distfile", Expression::none_t{});
auto repo_desc_sha256 = repo_desc->Get("sha256", Expression::none_t{});
auto repo_desc_sha512 = repo_desc->Get("sha512", Expression::none_t{});
// check optional mirrors
auto repo_desc_mirrors = repo_desc->Get("mirrors", Expression::list_t{});
std::vector<std::string> mirrors{};
if (repo_desc_mirrors->IsList()) {
mirrors.reserve(repo_desc_mirrors->List().size());
for (auto const& elem : repo_desc_mirrors->List()) {
if (not elem->IsString()) {
return unexpected{fmt::format(
"Unsupported list entry {} in optional field \"mirrors\"",
elem->ToString())};
}
mirrors.emplace_back(elem->String());
}
}
else {
return unexpected{
fmt::format("Optional field \"mirrors\" should be a list of "
"strings, but found: {}",
repo_desc_mirrors->ToString())};
}
return ArchiveContent{
.content_hash = *repo_desc_hash_info,
.distfile = repo_desc_distfile->IsString()
? std::make_optional(repo_desc_distfile->String())
: std::nullopt,
.fetch_url = repo_desc_fetch->get()->String(),
.mirrors = std::move(mirrors),
.sha256 = repo_desc_sha256->IsString()
? std::make_optional(repo_desc_sha256->String())
: std::nullopt,
.sha512 = repo_desc_sha512->IsString()
? std::make_optional(repo_desc_sha512->String())
: std::nullopt,
.origin = origin};
}
auto ParseArchiveDescription(ExpressionPtr const& repo_desc,
std::string const& repo_type,
std::string const& origin,
const AsyncMapConsumerLoggerPtr& logger)
-> std::optional<ArchiveRepoInfo> {
auto const archive_content = ParseArchiveContent(repo_desc, origin);
if (not archive_content) {
(*logger)(fmt::format("ArchiveCheckout: {}", archive_content.error()),
/*fatal=*/true);
return std::nullopt;
}
// additional mandatory fields
auto repo_desc_subdir = repo_desc->Get("subdir", Expression::none_t{});
auto subdir = std::filesystem::path(repo_desc_subdir->IsString()
? repo_desc_subdir->String()
: "")
.lexically_normal();
if (not PathIsNonUpwards(subdir)) {
(*logger)(fmt::format("ArchiveCheckout: Expected field \"subdir\" to "
"be a non-upwards path, but found {}",
subdir.string()),
/*fatal=*/true);
return std::nullopt;
}
// check "special" pragma
auto repo_desc_pragma = repo_desc->At("pragma");
bool const& pragma_is_map =
repo_desc_pragma and repo_desc_pragma->get()->IsMap();
auto pragma_special =
pragma_is_map ? repo_desc_pragma->get()->At("special") : std::nullopt;
auto pragma_special_value =
pragma_special and pragma_special->get()->IsString() and
kPragmaSpecialMap.contains(pragma_special->get()->String())
? std::make_optional(
kPragmaSpecialMap.at(pragma_special->get()->String()))
: std::nullopt;
// check "absent" pragma
auto pragma_absent =
pragma_is_map ? repo_desc_pragma->get()->At("absent") : std::nullopt;
auto pragma_absent_value = pragma_absent and
pragma_absent->get()->IsBool() and
pragma_absent->get()->Bool();
return ArchiveRepoInfo{.archive = *archive_content,
.repo_type = repo_type,
.subdir = subdir.empty() ? "." : subdir.string(),
.pragma_special = pragma_special_value,
.absent = pragma_absent_value};
}
auto ParseForeignFileDescription(ExpressionPtr const& repo_desc,
std::string const& origin,
const AsyncMapConsumerLoggerPtr& logger)
-> std::optional<ForeignFileInfo> {
auto const archive_content = ParseArchiveContent(repo_desc, origin);
if (not archive_content) {
(*logger)(archive_content.error(), /*fatal=*/true);
return std::nullopt;
}
auto name = repo_desc->At("name");
if (not name) {
(*logger)(
"Mandatory field \"name\" for foreign file repository is missing",
true);
return std::nullopt;
}
if (not name->get()->IsString()) {
(*logger)(fmt::format("Field \"name\" has to be a file name, given as "
"string, but found {}",
name->get()->ToString()),
true);
return std::nullopt;
}
if (not IsValidFileName(name->get()->String())) {
(*logger)(fmt::format("Field \"name\" has to be valid a file name, but "
"found {}",
name->get()->ToString()),
true);
return std::nullopt;
}
auto executable = repo_desc->Get("executable", Expression::kFalse);
if (not executable->IsBool()) {
(*logger)(fmt::format(
"Field \"executable\" has to be a boolean, but found {}",
executable->ToString()),
true);
return std::nullopt;
}
bool absent{};
auto pragma = repo_desc->Get("pragma", Expression::kEmptyMap);
if (pragma->IsMap()) {
auto pragma_absent = pragma->Get("absent", Expression::kFalse);
if (pragma_absent->IsBool()) {
absent = pragma_absent->Bool();
}
}
return ForeignFileInfo{.archive = *archive_content,
.name = name->get()->String(),
.executable = executable->Bool(),
.absent = absent};
}
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