2017-06-24 04:12:28 +03:00
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/*
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* Copyright (c) 2016-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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*/
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#include "eden/fs/testharness/HgRepo.h"
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#include <folly/Exception.h>
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2017-07-05 21:17:06 +03:00
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#include <folly/File.h>
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2017-06-24 04:12:28 +03:00
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#include <folly/FileUtil.h>
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#include <folly/String.h>
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#include <folly/Subprocess.h>
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#include <folly/experimental/logging/xlog.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include "eden/fs/model/Hash.h"
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using folly::StringPiece;
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using folly::Subprocess;
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using std::string;
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using std::vector;
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namespace facebook {
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namespace eden {
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HgRepo::HgRepo(AbsolutePathPiece path) : path_{path} {
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// Find the hg command and store it in hgCmd_
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auto pathPtr = getenv("PATH");
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if (!pathPtr) {
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throw std::runtime_error("unable to find hg command: no PATH");
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}
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StringPiece pathEnv{pathPtr};
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vector<string> pathEnvParts;
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folly::split(":", pathEnv, pathEnvParts);
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bool found = false;
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for (const auto& dir : pathEnvParts) {
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for (const auto& name : {"hg.real", "hg"}) {
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auto exePath = folly::to<string>(dir, "/", name);
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XLOG(DBG5) << "Checking for hg at " << exePath;
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if (access(exePath.c_str(), X_OK) == 0) {
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hgCmd_ = realpath(exePath);
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found = true;
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break;
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}
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}
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if (found) {
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break;
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}
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}
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if (!found) {
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throw std::runtime_error("unable to find hg in PATH");
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}
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XLOG(DBG1) << "Using hg command: " << hgCmd_;
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// Set up hgEnv_
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hgEnv_.push_back(folly::to<string>("PATH=", path));
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hgEnv_.push_back("HGPLAIN=1");
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hgEnv_.push_back("CHGDISABLE=1");
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hgEnv_.push_back("LOCALE=C");
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}
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string HgRepo::hg(vector<string> args) {
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args.insert(args.begin(), "hg");
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XLOG(DBG1) << "repo " << path_ << " running: " << folly::join(" ", args);
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const auto options{Subprocess::Options().chdir(path_.value()).pipeStdout()};
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Subprocess p(args, options, hgCmd_.value().c_str(), &hgEnv_);
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const auto outputs{p.communicate()};
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p.waitChecked();
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return outputs.first;
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}
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void HgRepo::hgInit() {
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XLOG(DBG1) << "creating new hg repository at " << path_;
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// Invoke Subprocess directly here rather than using our hg() helper
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// function. The hg() function requires the repository directory to already
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// exist.
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Subprocess p(
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{"hg", "init", path_.value()},
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2017-06-24 04:12:28 +03:00
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Subprocess::Options(),
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hgCmd_.value().c_str(),
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&hgEnv_);
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p.waitChecked();
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}
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2017-07-05 21:17:06 +03:00
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void HgRepo::appendToHgrc(folly::StringPiece data) {
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auto hgrcPath =
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path_ + PathComponentPiece{".hg"} + PathComponentPiece{"hgrc"};
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folly::File hgrc{hgrcPath.stringPiece(), O_WRONLY | O_APPEND | O_CREAT};
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if (folly::writeFull(hgrc.fd(), data.data(), data.size()) < 0) {
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folly::throwSystemError("error writing to ", hgrcPath);
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}
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}
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void HgRepo::appendToHgrc(const std::vector<std::string>& lines) {
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appendToHgrc(folly::join("\n", lines));
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}
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2017-06-24 04:12:28 +03:00
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Hash HgRepo::commit(StringPiece message) {
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hg("commit",
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"-u",
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"Test User <user@example.com>",
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"-d",
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"2017-01-01 13:00:00",
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"-m",
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message.str());
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auto output = hg("log", "-r.", "-T{node}\\n");
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return Hash{folly::rtrimWhitespace(output)};
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}
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void HgRepo::mkdir(RelativePathPiece path, mode_t permissions) {
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auto fullPath = path_ + path;
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auto rc = ::mkdir(fullPath.value().c_str(), permissions);
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folly::checkUnixError(rc, "mkdir ", fullPath);
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}
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void HgRepo::writeFile(
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RelativePathPiece path,
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StringPiece contents,
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mode_t permissions) {
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auto fullPath = path_ + path;
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folly::writeFileAtomic(fullPath.value(), contents, permissions);
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}
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void HgRepo::symlink(StringPiece contents, RelativePathPiece path) {
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auto fullPath = path_ + path;
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auto rc = ::symlink(contents.str().c_str(), fullPath.value().c_str());
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checkUnixError(rc, "error creating symlink at ", path);
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}
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2017-11-04 01:58:04 +03:00
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} // namespace eden
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} // namespace facebook
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