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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_git_tree.hpp"
#include <functional>
#include <map>
#include <utility> // std::move
#include <vector>
#include "fmt/core.h"
#include "nlohmann/json.hpp"
#include "src/buildtool/build_engine/expression/expression.hpp"
#include "src/buildtool/crypto/hash_function.hpp"
#include "src/buildtool/crypto/hash_info.hpp"
[[nodiscard]] auto ParseGitTree(ExpressionPtr const& repo_desc,
std::optional<std::string> origin)
-> expected<GitTreeInfo, std::string> {
auto repo_desc_hash = repo_desc->At("id");
if (not repo_desc_hash) {
return unexpected<std::string>{"Mandatory field \"id\" is missing"};
}
if (not repo_desc_hash->get()->IsString()) {
return unexpected{
fmt::format("Unsupported value {} for "
"mandatory field \"id\"",
repo_desc_hash->get()->ToString())};
}
auto repo_desc_hash_info = HashInfo::Create(HashFunction::Type::GitSHA1,
repo_desc_hash->get()->String(),
/*is_tree=*/true);
if (not repo_desc_hash_info) {
return unexpected{
fmt::format("Unsupported value {} for "
"mandatory field \"id\"\n{}",
repo_desc_hash->get()->ToString(),
std::move(repo_desc_hash_info).error())};
}
auto repo_desc_cmd = repo_desc->At("cmd");
if (not repo_desc_cmd) {
return unexpected<std::string>{"Mandatory field \"cmd\" is missing"};
}
if (not repo_desc_cmd->get()->IsList()) {
return unexpected{
fmt::format("Unsupported value {} for "
"mandatory field \"cmd\"",
repo_desc_cmd->get()->ToString())};
}
std::vector<std::string> cmd{};
for (auto const& token : repo_desc_cmd->get()->List()) {
if (token.IsNotNull() and token->IsString()) {
cmd.emplace_back(token->String());
}
else {
return unexpected{
fmt::format("Unsupported entry {} "
"in mandatory field \"cmd\"",
token->ToString())};
}
}
std::map<std::string, std::string> env{};
auto repo_desc_env = repo_desc->Get("env", Expression::none_t{});
if (repo_desc_env.IsNotNull() and repo_desc_env->IsMap()) {
for (auto const& envar : repo_desc_env->Map().Items()) {
if (envar.second.IsNotNull() and envar.second->IsString()) {
env.insert({envar.first, envar.second->String()});
}
else {
return unexpected{
fmt::format("Unsupported value {} for "
"key {} in optional field \"envs\"",
envar.second->ToString(),
nlohmann::json(envar.first).dump())};
}
}
}
std::vector<std::string> inherit_env{};
auto repo_desc_inherit_env =
repo_desc->Get("inherit env", Expression::none_t{});
if (repo_desc_inherit_env.IsNotNull() and repo_desc_inherit_env->IsList()) {
for (auto const& envvar : repo_desc_inherit_env->List()) {
if (envvar->IsString()) {
inherit_env.emplace_back(envvar->String());
}
else {
return unexpected{
fmt::format("Not a variable "
"name in the specification "
"of \"inherit env\": {}",
envvar->ToString())};
}
}
}
// populate struct
auto info =
GitTreeInfo{.tree_hash = *std::move(repo_desc_hash_info),
.env_vars = std::move(env),
.inherit_env = std::move(inherit_env),
.command = std::move(cmd),
.origin = origin ? std::move(*origin) : std::string{}};
return info;
}
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