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// Copyright 2019 Roman Perepelitsa.
//
// This file is part of GitStatus.
//
// GitStatus is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// GitStatus is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with GitStatus. If not, see <https://www.gnu.org/licenses/>.
#ifndef ROMKATV_GITSTATUS_REPO_H_
#define ROMKATV_GITSTATUS_REPO_H_
#include <stddef.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <git2.h>
#include <algorithm>
#include <atomic>
#include <condition_variable>
#include <cstddef>
#include <cstring>
#include <functional>
#include <future>
#include <memory>
#include <mutex>
#include <string>
#include <utility>
#include <vector>
#include "check.h"
#include "index.h"
#include "options.h"
#include "string_cmp.h"
#include "tag_db.h"
#include "time.h"
namespace gitstatus {
struct IndexStats {
size_t index_size = 0;
size_t num_staged = 0;
size_t num_unstaged = 0;
size_t num_conflicted = 0;
size_t num_untracked = 0;
size_t num_staged_new = 0;
size_t num_staged_deleted = 0;
size_t num_unstaged_deleted = 0;
size_t num_skip_worktree = 0;
size_t num_assume_unchanged = 0;
};
class Repo {
public:
explicit Repo(git_repository* repo, Limits lim);
Repo(Repo&& other) = delete;
~Repo();
git_repository* repo() const { return repo_; }
// Head can be null, in which case has_staged will be false.
IndexStats GetIndexStats(const git_oid* head, git_config* cfg);
// Returns the last tag in lexicographical order whose target is equal to the given, or an
// empty string. Target can be null, in which case the tag is empty.
std::future<std::string> GetTagName(const git_oid* target);
private:
struct Shard {
bool Contains(Str<> str, StringView path) const;
std::string start_s;
std::string end_s;
size_t start_i;
size_t end_i;
};
void UpdateShards();
int OnDelta(const char* type, const git_diff_delta& d, std::atomic<size_t>& c1, size_t m1,
const std::atomic<size_t>& c2, size_t m2);
void StartStagedScan(const git_oid* head);
void StartDirtyScan(const std::vector<const char*>& paths);
void DecInflight();
void RunAsync(std::function<void()> f);
void Wait();
Limits lim_;
git_repository* const repo_;
git_index* git_index_ = nullptr;
std::vector<Shard> shards_;
git_oid head_ = {};
TagDb tag_db_;
std::unique_ptr<Index> index_;
std::mutex mutex_;
std::condition_variable cv_;
std::atomic<size_t> inflight_{0};
std::atomic<bool> error_{false};
std::atomic<size_t> staged_{0};
std::atomic<size_t> unstaged_{0};
std::atomic<size_t> conflicted_{0};
std::atomic<size_t> untracked_{0};
std::atomic<size_t> staged_new_{0};
std::atomic<size_t> staged_deleted_{0};
std::atomic<size_t> unstaged_deleted_{0};
std::atomic<size_t> skip_worktree_{0};
std::atomic<size_t> assume_unchanged_{0};
std::atomic<Tribool> untracked_cache_{Tribool::kUnknown};
};
} // namespace gitstatus
#endif // ROMKATV_GITSTATUS_REPO_H_
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