mirror of
https://github.com/RGBCube/serenity
synced 2025-05-22 00:55:07 +00:00
f690807c5a
The existing hunk data structure does not contain any way to easily store information about context surrounding the additions and removals in a hunk. While this does work fine for normal diffs (where there is never any surrounding context) this data structure is quite limiting for other use cases. Without support for surrounding context it is not possible to: * Add support for unified or context format to the diff utility to output surrounding context. * Be able to implement a patch utility that uses the surrounding context to reliably locate where to apply a patch when a hunk range does not apply perfectly. This patch changes Diff::Hunk such that its data structure more closely resembles a unified diff. Each line in a hunk is now either a change, removal, addition or context. Allowing hunks to have context inside of them exposes that HackStudio heavily relies on there being no context in the hunks that it uses for its' git gutter implementation. The fix here is simple - ask git to produce us a diff that has no context in it!
133 lines
3.5 KiB
C++
133 lines
3.5 KiB
C++
/*
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* Copyright (c) 2020, Itamar S. <itamar8910@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include "GitRepo.h"
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#include <LibCore/Command.h>
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namespace HackStudio {
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GitRepo::CreateResult GitRepo::try_to_create(DeprecatedString const& repository_root)
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{
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if (!git_is_installed()) {
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return { CreateResult::Type::GitProgramNotFound, nullptr };
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}
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if (!git_repo_exists(repository_root)) {
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return { CreateResult::Type::NoGitRepo, nullptr };
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}
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return { CreateResult::Type::Success, adopt_ref(*new GitRepo(repository_root)) };
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}
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RefPtr<GitRepo> GitRepo::initialize_repository(DeprecatedString const& repository_root)
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{
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auto res = command_wrapper({ "init" }, repository_root);
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if (res.is_null())
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return {};
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VERIFY(git_repo_exists(repository_root));
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return adopt_ref(*new GitRepo(repository_root));
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}
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Vector<DeprecatedString> GitRepo::unstaged_files() const
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{
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auto modified = modified_files();
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auto untracked = untracked_files();
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modified.extend(move(untracked));
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return modified;
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}
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//
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Vector<DeprecatedString> GitRepo::staged_files() const
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{
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auto raw_result = command({ "diff", "--cached", "--name-only" });
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if (raw_result.is_null())
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return {};
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return parse_files_list(raw_result);
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}
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Vector<DeprecatedString> GitRepo::modified_files() const
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{
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auto raw_result = command({ "ls-files", "--modified", "--exclude-standard" });
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if (raw_result.is_null())
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return {};
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return parse_files_list(raw_result);
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}
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Vector<DeprecatedString> GitRepo::untracked_files() const
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{
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auto raw_result = command({ "ls-files", "--others", "--exclude-standard" });
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if (raw_result.is_null())
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return {};
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return parse_files_list(raw_result);
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}
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Vector<DeprecatedString> GitRepo::parse_files_list(DeprecatedString const& raw_result)
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{
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auto lines = raw_result.split('\n');
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Vector<DeprecatedString> files;
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for (auto const& line : lines) {
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files.empend(line);
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}
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return files;
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}
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DeprecatedString GitRepo::command(Vector<DeprecatedString> const& command_parts) const
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{
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return command_wrapper(command_parts, m_repository_root);
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}
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DeprecatedString GitRepo::command_wrapper(Vector<DeprecatedString> const& command_parts, DeprecatedString const& chdir)
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{
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auto const result = Core::command("git", command_parts, LexicalPath(chdir));
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if (result.is_error() || result.value().exit_code != 0)
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return {};
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return DeprecatedString(result.value().output.bytes());
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}
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bool GitRepo::git_is_installed()
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{
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return !command_wrapper({ "--help" }, "/").is_null();
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}
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bool GitRepo::git_repo_exists(DeprecatedString const& repo_root)
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{
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return !command_wrapper({ "status" }, repo_root).is_null();
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}
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bool GitRepo::stage(DeprecatedString const& file)
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{
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return !command({ "add", file }).is_null();
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}
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bool GitRepo::unstage(DeprecatedString const& file)
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{
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return !command({ "reset", "HEAD", "--", file }).is_null();
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}
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bool GitRepo::commit(DeprecatedString const& message)
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{
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return !command({ "commit", "-m", message }).is_null();
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}
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Optional<DeprecatedString> GitRepo::original_file_content(DeprecatedString const& file) const
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{
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return command({ "show", DeprecatedString::formatted("HEAD:{}", file) });
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}
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Optional<DeprecatedString> GitRepo::unstaged_diff(DeprecatedString const& file) const
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{
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return command({ "diff", "-U0", file.characters() });
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}
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bool GitRepo::is_tracked(DeprecatedString const& file) const
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{
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auto res = command({ "ls-files", file });
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if (res.is_null())
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return false;
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return !res.is_empty();
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}
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}
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