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<?php declare(strict_types=1);
/*
* This file is part of Composer.
*
* (c) Nils Adermann <naderman@naderman.de>
* Jordi Boggiano <j.boggiano@seld.be>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Composer\Package\Version;
use Composer\Config;
use Composer\Pcre\Preg;
use Composer\Repository\Vcs\HgDriver;
use Composer\IO\NullIO;
use Composer\Semver\VersionParser as SemverVersionParser;
use Composer\Util\Git as GitUtil;
use Composer\Util\HttpDownloader;
use Composer\Util\Platform;
use Composer\Util\ProcessExecutor;
use Composer\Util\Svn as SvnUtil;
use React\Promise\CancellablePromiseInterface;
use Symfony\Component\Process\Process;
/**
* Try to guess the current version number based on different VCS configuration.
*
* @author Jordi Boggiano <j.boggiano@seld.be>
* @author Samuel Roze <samuel.roze@gmail.com>
*
* @phpstan-type Version array{version: string, commit: string|null, pretty_version: string|null}|array{version: string, commit: string|null, pretty_version: string|null, feature_version: string|null, feature_pretty_version: string|null}
*/
class VersionGuesser
{
/**
* @var Config
*/
private $config;
/**
* @var ProcessExecutor
*/
private $process;
/**
* @var SemverVersionParser
*/
private $versionParser;
public function __construct(Config $config, ProcessExecutor $process, SemverVersionParser $versionParser)
{
$this->config = $config;
$this->process = $process;
$this->versionParser = $versionParser;
}
/**
* @param array<string, mixed> $packageConfig
* @param string $path Path to guess into
*
* @phpstan-return Version|null
*/
public function guessVersion(array $packageConfig, string $path): ?array
{
if (!function_exists('proc_open')) {
return null;
}
// bypass version guessing in bash completions as it takes time to create
// new processes and the root version is usually not that important
if (Platform::isInputCompletionProcess()) {
return null;
}
$versionData = $this->guessGitVersion($packageConfig, $path);
if (null !== $versionData['version']) {
return $this->postprocess($versionData);
}
$versionData = $this->guessHgVersion($packageConfig, $path);
if (null !== $versionData && null !== $versionData['version']) {
return $this->postprocess($versionData);
}
$versionData = $this->guessFossilVersion($path);
if (null !== $versionData['version']) {
return $this->postprocess($versionData);
}
$versionData = $this->guessSvnVersion($packageConfig, $path);
if (null !== $versionData && null !== $versionData['version']) {
return $this->postprocess($versionData);
}
return null;
}
/**
* @phpstan-param Version $versionData
*
* @phpstan-return Version
*/
private function postprocess(array $versionData): array
{
if (!empty($versionData['feature_version']) && $versionData['feature_version'] === $versionData['version'] && $versionData['feature_pretty_version'] === $versionData['pretty_version']) {
unset($versionData['feature_version'], $versionData['feature_pretty_version']);
}
if ('-dev' === substr($versionData['version'], -4) && Preg::isMatch('{\.9{7}}', $versionData['version'])) {
$versionData['pretty_version'] = Preg::replace('{(\.9{7})+}', '.x', $versionData['version']);
}
if (!empty($versionData['feature_version']) && '-dev' === substr($versionData['feature_version'], -4) && Preg::isMatch('{\.9{7}}', $versionData['feature_version'])) {
$versionData['feature_pretty_version'] = Preg::replace('{(\.9{7})+}', '.x', $versionData['feature_version']);
}
return $versionData;
}
/**
* @param array<string, mixed> $packageConfig
*
* @return array{version: string|null, commit: string|null, pretty_version: string|null, feature_version?: string|null, feature_pretty_version?: string|null}
*/
private function guessGitVersion(array $packageConfig, string $path): array
{
GitUtil::cleanEnv();
$commit = null;
$version = null;
$prettyVersion = null;
$featureVersion = null;
$featurePrettyVersion = null;
$isDetached = false;
// try to fetch current version from git branch
if (0 === $this->process->execute(['git', 'branch', '-a', '--no-color', '--no-abbrev', '-v'], $output, $path)) {
$branches = [];
$isFeatureBranch = false;
// find current branch and collect all branch names
foreach ($this->process->splitLines($output) as $branch) {
if ($branch && Preg::isMatchStrictGroups('{^(?:\* ) *(\(no branch\)|\(detached from \S+\)|\(HEAD detached at \S+\)|\S+) *([a-f0-9]+) .*$}', $branch, $match)) {
if (
$match[1] === '(no branch)'
|| strpos($match[1], '(detached ') === 0
|| strpos($match[1], '(HEAD detached at') === 0
) {
$version = 'dev-' . $match[2];
$prettyVersion = $version;
$isFeatureBranch = true;
$isDetached = true;
} else {
$version = $this->versionParser->normalizeBranch($match[1]);
$prettyVersion = 'dev-' . $match[1];
$isFeatureBranch = $this->isFeatureBranch($packageConfig, $match[1]);
}
$commit = $match[2];
}
if ($branch && !Preg::isMatchStrictGroups('{^ *.+/HEAD }', $branch)) {
if (Preg::isMatchStrictGroups('{^(?:\* )? *((?:remotes/(?:origin|upstream)/)?[^\s/]+) *([a-f0-9]+) .*$}', $branch, $match)) {
$branches[] = $match[1];
}
}
}
if ($isFeatureBranch) {
$featureVersion = $version;
$featurePrettyVersion = $prettyVersion;
// try to find the best (nearest) version branch to assume this feature's version
$result = $this->guessFeatureVersion($packageConfig, $version, $branches, 'git rev-list %candidate%..%branch%', $path);
$version = $result['version'];
$prettyVersion = $result['pretty_version'];
}
}
if (!$version || $isDetached) {
$result = $this->versionFromGitTags($path);
if ($result) {
$version = $result['version'];
$prettyVersion = $result['pretty_version'];
$featureVersion = null;
$featurePrettyVersion = null;
}
}
if (null === $commit) {
$command = 'git log --pretty="%H" -n1 HEAD'.GitUtil::getNoShowSignatureFlag($this->process);
if (0 === $this->process->execute($command, $output, $path)) {
$commit = trim($output) ?: null;
}
}
if ($featureVersion) {
return ['version' => $version, 'commit' => $commit, 'pretty_version' => $prettyVersion, 'feature_version' => $featureVersion, 'feature_pretty_version' => $featurePrettyVersion];
}
return ['version' => $version, 'commit' => $commit, 'pretty_version' => $prettyVersion];
}
/**
* @return array{version: string, pretty_version: string}|null
*/
private function versionFromGitTags(string $path): ?array
{
// try to fetch current version from git tags
if (0 === $this->process->execute('git describe --exact-match --tags', $output, $path)) {
try {
$version = $this->versionParser->normalize(trim($output));
return ['version' => $version, 'pretty_version' => trim($output)];
} catch (\Exception $e) {
}
}
return null;
}
/**
* @param array<string, mixed> $packageConfig
*
* @return array{version: string|null, commit: ''|null, pretty_version: string|null, feature_version?: string|null, feature_pretty_version?: string|null}|null
*/
private function guessHgVersion(array $packageConfig, string $path): ?array
{
// try to fetch current version from hg branch
if (0 === $this->process->execute('hg branch', $output, $path)) {
$branch = trim($output);
$version = $this->versionParser->normalizeBranch($branch);
$isFeatureBranch = 0 === strpos($version, 'dev-');
if (VersionParser::DEFAULT_BRANCH_ALIAS === $version) {
return ['version' => $version, 'commit' => null, 'pretty_version' => 'dev-'.$branch];
}
if (!$isFeatureBranch) {
return ['version' => $version, 'commit' => null, 'pretty_version' => $version];
}
// re-use the HgDriver to fetch branches (this properly includes bookmarks)
$io = new NullIO();
$driver = new HgDriver(['url' => $path], $io, $this->config, new HttpDownloader($io, $this->config), $this->process);
$branches = array_map('strval', array_keys($driver->getBranches()));
// try to find the best (nearest) version branch to assume this feature's version
$result = $this->guessFeatureVersion($packageConfig, $version, $branches, 'hg log -r "not ancestors(\'%candidate%\') and ancestors(\'%branch%\')" --template "{node}\\n"', $path);
$result['commit'] = '';
$result['feature_version'] = $version;
$result['feature_pretty_version'] = $version;
return $result;
}
return null;
}
/**
* @param array<string, mixed> $packageConfig
* @param string[] $branches
*
* @phpstan-param non-empty-string $scmCmdline
*
* @return array{version: string|null, pretty_version: string|null}
*/
private function guessFeatureVersion(array $packageConfig, ?string $version, array $branches, string $scmCmdline, string $path): array
{
$prettyVersion = $version;
// ignore feature branches if they have no branch-alias or self.version is used
// and find the branch they came from to use as a version instead
if (!isset($packageConfig['extra']['branch-alias'][$version])
|| strpos(json_encode($packageConfig), '"self.version"')
) {
$branch = Preg::replace('{^dev-}', '', $version);
$length = PHP_INT_MAX;
// return directly, if branch is configured to be non-feature branch
if (!$this->isFeatureBranch($packageConfig, $branch)) {
return ['version' => $version, 'pretty_version' => $prettyVersion];
}
// sort local branches first then remote ones
// and sort numeric branches below named ones, to make sure if the branch has the same distance from main and 1.10 and 1.9 for example, main is picked
// and sort using natural sort so that 1.10 will appear before 1.9
usort($branches, static function ($a, $b): int {
$aRemote = 0 === strpos($a, 'remotes/');
$bRemote = 0 === strpos($b, 'remotes/');
if ($aRemote !== $bRemote) {
return $aRemote ? 1 : -1;
}
return strnatcasecmp($b, $a);
});
$promises = [];
$this->process->setMaxJobs(30);
try {
foreach ($branches as $candidate) {
$candidateVersion = Preg::replace('{^remotes/\S+/}', '', $candidate);
// do not compare against itself or other feature branches
if ($candidate === $branch || $this->isFeatureBranch($packageConfig, $candidateVersion)) {
continue;
}
$cmdLine = str_replace(['%candidate%', '%branch%'], [$candidate, $branch], $scmCmdline);
$promises[] = $this->process->executeAsync($cmdLine, $path)->then(function (Process $process) use (&$length, &$version, &$prettyVersion, $candidateVersion, &$promises): void {
if (!$process->isSuccessful()) {
return;
}
$output = $process->getOutput();
if (strlen($output) < $length) {
$length = strlen($output);
$version = $this->versionParser->normalizeBranch($candidateVersion);
$prettyVersion = 'dev-' . $candidateVersion;
if ($length === 0) {
foreach ($promises as $promise) {
// to support react/promise 2.x we wrap the promise in a resolve() call for safety
\React\Promise\resolve($promise)->cancel();
}
}
}
});
}
$this->process->wait();
} finally {
$this->process->resetMaxJobs();
}
}
return ['version' => $version, 'pretty_version' => $prettyVersion];
}
/**
* @param array<string, mixed> $packageConfig
*/
private function isFeatureBranch(array $packageConfig, ?string $branchName): bool
{
$nonFeatureBranches = '';
if (!empty($packageConfig['non-feature-branches'])) {
$nonFeatureBranches = implode('|', $packageConfig['non-feature-branches']);
}
return !Preg::isMatch('{^(' . $nonFeatureBranches . '|master|main|latest|next|current|support|tip|trunk|default|develop|\d+\..+)$}', $branchName, $match);
}
/**
* @return array{version: string|null, commit: '', pretty_version: string|null}
*/
private function guessFossilVersion(string $path): array
{
$version = null;
$prettyVersion = null;
// try to fetch current version from fossil
if (0 === $this->process->execute('fossil branch list', $output, $path)) {
$branch = trim($output);
$version = $this->versionParser->normalizeBranch($branch);
$prettyVersion = 'dev-' . $branch;
}
// try to fetch current version from fossil tags
if (0 === $this->process->execute('fossil tag list', $output, $path)) {
try {
$version = $this->versionParser->normalize(trim($output));
$prettyVersion = trim($output);
} catch (\Exception $e) {
}
}
return ['version' => $version, 'commit' => '', 'pretty_version' => $prettyVersion];
}
/**
* @param array<string, mixed> $packageConfig
*
* @return array{version: string, commit: '', pretty_version: string}|null
*/
private function guessSvnVersion(array $packageConfig, string $path): ?array
{
SvnUtil::cleanEnv();
// try to fetch current version from svn
if (0 === $this->process->execute('svn info --xml', $output, $path)) {
$trunkPath = isset($packageConfig['trunk-path']) ? preg_quote($packageConfig['trunk-path'], '#') : 'trunk';
$branchesPath = isset($packageConfig['branches-path']) ? preg_quote($packageConfig['branches-path'], '#') : 'branches';
$tagsPath = isset($packageConfig['tags-path']) ? preg_quote($packageConfig['tags-path'], '#') : 'tags';
$urlPattern = '#<url>.*/(' . $trunkPath . '|(' . $branchesPath . '|' . $tagsPath . ')/(.*))</url>#';
if (Preg::isMatch($urlPattern, $output, $matches)) {
if (isset($matches[2], $matches[3]) && ($branchesPath === $matches[2] || $tagsPath === $matches[2])) {
// we are in a branches path
$version = $this->versionParser->normalizeBranch($matches[3]);
$prettyVersion = 'dev-' . $matches[3];
return ['version' => $version, 'commit' => '', 'pretty_version' => $prettyVersion];
}
assert(is_string($matches[1]));
$prettyVersion = trim($matches[1]);
if ($prettyVersion === 'trunk') {
$version = 'dev-trunk';
} else {
$version = $this->versionParser->normalize($prettyVersion);
}
return ['version' => $version, 'commit' => '', 'pretty_version' => $prettyVersion];
}
}
return null;
}
}
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