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composer/src/Composer/Package/Version/VersionParser.php

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6.0 KiB
PHP

<?php
/*
* 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\Package\LinkConstraint\MultiConstraint;
use Composer\Package\LinkConstraint\VersionConstraint;
/**
* Version parser
*
* @author Jordi Boggiano <j.boggiano@seld.be>
*/
class VersionParser
{
private $modifierRegex = '[.-]?(?:(beta|RC|alpha|patch|pl|p)(?:[.-]?(\d+))?)?([.-]?dev)?';
/**
* Normalizes a version string to be able to perform comparisons on it
*
* @param string $version
* @return array
*/
public function normalize($version)
{
$version = trim($version);
if (preg_match('{^(?:master|trunk|default)(?:[.-]?dev)?$}i', $version)) {
return '9999999-dev';
}
// match classical versioning
if (preg_match('{^v?(\d{1,3})(\.\d+)?(\.\d+)?(\.\d+)?'.$this->modifierRegex.'$}i', $version, $matches)) {
$version = $matches[1]
.(!empty($matches[2]) ? $matches[2] : '.0')
.(!empty($matches[3]) ? $matches[3] : '.0')
.(!empty($matches[4]) ? $matches[4] : '.0');
$index = 5;
} elseif (preg_match('{^v?(\d{4}(?:[.:-]?\d{2}){1,6}(?:[.:-]?\d{1,3})?)'.$this->modifierRegex.'$}i', $version, $matches)) { // match date-based versioning
$version = preg_replace('{\D}', '-', $matches[1]);
$index = 2;
}
// add version modifiers if a version was matched
if (isset($index)) {
if (!empty($matches[$index])) {
$mod = array('{^pl?$}', '{^rc$}');
$modNormalized = array('patch', 'RC');
$version .= '-'.preg_replace($mod, $modNormalized, strtolower($matches[$index]))
. (!empty($matches[$index+1]) ? $matches[$index+1] : '');
}
if (!empty($matches[$index+2])) {
$version .= '-dev';
}
return $version;
}
if (preg_match('{(.*?)[.-]?dev$}i', $version, $match)) {
try {
return $this->normalizeBranch($match[1]);
} catch (\Exception $e) {}
}
throw new \UnexpectedValueException('Invalid version string '.$version);
}
/**
* Normalizes a branch name to be able to perform comparisons on it
*
* @param string $version
* @return array
*/
public function normalizeBranch($name)
{
$name = trim($name);
if (in_array($name, array('master', 'trunk', 'default'))) {
return $this->normalize($name);
}
if (preg_match('#^v?(\d+)(\.(?:\d+|[x*]))?(\.(?:\d+|[x*]))?(\.(?:\d+|[x*]))?$#i', $name, $matches)) {
$version = '';
for ($i = 1; $i < 5; $i++) {
$version .= isset($matches[$i]) ? str_replace('*', 'x', $matches[$i]) : '.x';
}
return str_replace('x', '9999999', $version).'-dev';
}
throw new \UnexpectedValueException('Invalid branch name '.$name);
}
/**
* Parses as constraint string into LinkConstraint objects
*
* @param string $constraints
* @return \Composer\Package\LinkConstraint\LinkConstraintInterface
*/
public function parseConstraints($constraints)
{
$constraints = preg_split('{\s*,\s*}', trim($constraints));
if (count($constraints) > 1) {
$constraintObjects = array();
foreach ($constraints as $constraint) {
$constraintObjects = array_merge($constraintObjects, $this->parseConstraint($constraint));
}
} else {
$constraintObjects = $this->parseConstraint($constraints[0]);
}
if (1 === count($constraintObjects)) {
return $constraintObjects[0];
}
return new MultiConstraint($constraintObjects);
}
private function parseConstraint($constraint)
{
if ('*' === $constraint || '*.*' === $constraint || '*.*.*' === $constraint || '*.*.*.*' === $constraint) {
return array();
}
// match wildcard constraints
if (preg_match('{^(\d+)(?:\.(\d+))?(?:\.(\d+))?\.\*$}', $constraint, $matches)) {
if (isset($matches[3])) {
$highVersion = $matches[1] . '.' . $matches[2] . '.' . $matches[3] . '.9999999';
if ($matches[3] === '0') {
$lowVersion = $matches[1] . '.' . ($matches[2] - 1) . '.9999999.9999999';
} else {
$lowVersion = $matches[1] . '.' . $matches[2] . '.' . ($matches[3] - 1). '.9999999';
}
} elseif (isset($matches[2])) {
$highVersion = $matches[1] . '.' . $matches[2] . '.9999999.9999999';
if ($matches[2] === '0') {
$lowVersion = ($matches[1] - 1) . '.9999999.9999999.9999999';
} else {
$lowVersion = $matches[1] . '.' . ($matches[2] - 1) . '.9999999.9999999';
}
} else {
$highVersion = $matches[1] . '.9999999.9999999.9999999';
if ($matches[1] === '0') {
return array(new VersionConstraint('<', $highVersion));
} else {
$lowVersion = ($matches[1] - 1) . '.9999999.9999999.9999999';
}
}
return array(
new VersionConstraint('>', $lowVersion),
new VersionConstraint('<', $highVersion),
);
}
// match operators constraints
if (preg_match('{^(>=?|<=?|==?)?\s*(.*)}', $constraint, $matches)) {
try {
$version = $this->normalize($matches[2]);
return array(new VersionConstraint($matches[1] ?: '=', $version));
} catch (\Exception $e) {}
}
throw new \UnexpectedValueException('Could not parse version constraint '.$constraint);
}
}