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Refactored VersionParser

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Jordi Boggiano 13 years ago
parent 30f6c05069
commit f761cfe525
2 changed files with 204 additions and 13 deletions
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86
src/Composer/Package/Version/VersionParser.php
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@ -12,32 +12,92 @@
namespace Composer\Package\Version;
use Composer\Package\LinkConstraint\MultiConstraint;
use Composer\Package\LinkConstraint\VersionConstraint;
/**
* Version parser
*
* @author Konstantin Kudryashov <ever.zet@gmail.com>
* @author Nils Adermann <naderman@naderman.de>
* @author Jordi Boggiano <j.boggiano@seld.be>
*/
class VersionParser
{
/**
* Parses a version string and returns an array with the version, its type (alpha, beta, RC, stable) and a dev flag (for development branches tracking)
* Normalizes a version string to be able to perform comparisons on it
*
* @param string $version
* @return array
*/
public function parse($version)
public function normalize($version)
{
if (!preg_match('#^v?(\d+)(\.\d+)?(\.\d+)?-?((?:beta|RC|alpha)\d*)?-?(dev)?$#i', $version, $matches)) {
throw new \UnexpectedValueException('Invalid version string '.$version);
}
$version = trim($version);
return array(
'version' => $matches[1]
// match classical versioning
if (preg_match('{^v?(\d{1,3})(\.\d+)?(\.\d+)?-?((?:beta|RC|alpha)\d*)?(-?dev)?$}i', $version, $matches)) {
return $matches[1]
.(!empty($matches[2]) ? $matches[2] : '.0')
.(!empty($matches[3]) ? $matches[3] : '.0'),
'type' => strtolower(!empty($matches[4]) ? $matches[4] : 'stable'),
'dev' => !empty($matches[5]),
);
.(!empty($matches[3]) ? $matches[3] : '.0')
.(!empty($matches[4]) ? '-'.strtolower($matches[4]) : '')
.(!empty($matches[5]) ? '-dev' : '');
}
// match date-based versioning
if (preg_match('{^v?(\d{4}(?:[.:-]?\d{2}){1,6}(?:[.:-]?\d{1})?)((?:beta|RC|alpha)\d*)?(-?dev)?$}i', $version, $matches)) {
return preg_replace('{\D}', '-', $matches[1])
.(!empty($matches[2]) ? '-'.strtolower($matches[2]) : '')
.(!empty($matches[3]) ? '-dev' : '');
}
throw new \UnexpectedValueException('Invalid version string '.$version);
}
public function parseConstraints($constraints)
{
$constraints = preg_split('{\s*,\s*}', trim($constraints));
if (count($constraints) > 1) {
$constraintObjects = array();
foreach ($constraints as $key => $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 || '*.*.*' === $constraint) {
return array();
}
// match wildcard constraints
if (preg_match('{^(\d+)(?:\.(\d+))?\.\*$}', $constraint, $matches)) {
$lowVersion = $matches[1] . '.' . (isset($matches[2]) ? $matches[2] : '0') . '.0';
$highVersion = (isset($matches[2])
? $matches[1] . '.' . ($matches[2]+1)
: ($matches[1]+1) . '.0')
. '.0';
return array(
new VersionConstraint('>=', $lowVersion),
new VersionConstraint('<', $highVersion),
);
}
// match operators constraints
if (preg_match('{^(>=?|<=?|==?)?\s*(\d+.*)}', $constraint, $matches)) {
$version = $this->normalize($matches[2]);
return array(new VersionConstraint($matches[1] ?: '=', $version));
}
throw new \UnexpectedValueException('Could not parse version constraint '.$constraint);
}
}

131
tests/Composer/Test/Package/Version/VersionParserTest.php
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<?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\Test\Package\Version;
use Composer\Package\Version\VersionParser;
use Composer\Package\LinkConstraint\MultiConstraint;
use Composer\Package\LinkConstraint\VersionConstraint;
class VersionParserTest extends \PHPUnit_Framework_TestCase
{
/**
* @dataProvider successfulNormalizedVersions
*/
public function testNormalizeSucceeds($input, $expected)
{
$parser = new VersionParser;
$this->assertEquals($expected, $parser->normalize($input));
}
public function successfulNormalizedVersions()
{
return array(
'none' => array('1.0.0', '1.0.0'),
'parses state' => array('1.0.0RC1dev', '1.0.0-rc1-dev'),
'CI parsing' => array('1.0.0-rC15-dev', '1.0.0-rc15-dev'),
'forces x.y.z' => array('1.0-dev', '1.0.0-dev'),
'parses long' => array('10.4.13-beta', '10.4.13-beta'),
'strips leading v' => array('v1.0.0', '1.0.0'),
'strips leading v' => array('v20100102', '20100102'),
'parses dates w/ .' => array('2010.01.02', '2010-01-02'),
'parses dates w/ -' => array('2010-01-02', '2010-01-02'),
'parses numbers' => array('2010-01-02.5', '2010-01-02-5'),
'parses datetime' => array('20100102-203040', '20100102-203040'),
'parses dt+number' => array('20100102203040-10', '20100102203040-10'),
);
}
/**
* @dataProvider failingNormalizedVersions
* @expectedException UnexpectedValueException
*/
public function testNormalizeFails($input)
{
$parser = new VersionParser;
$parser->normalize($input);
}
public function failingNormalizedVersions()
{
return array(
'empty ' => array(''),
'invalid chars' => array('a'),
'invalid type' => array('1.0.0-meh'),
'too many bits' => array('1.0.0.0'),
);
}
/**
* @dataProvider simpleConstraints
*/
public function testParseConstraintsSimple($input, $expected)
{
$parser = new VersionParser;
$this->assertEquals((string) $expected, (string) $parser->parseConstraints($input));
}
public function simpleConstraints()
{
return array(
'greater than' => array('>1.0.0', new VersionConstraint('>', '1.0.0')),
'lesser than' => array('<1.2.3', new VersionConstraint('<', '1.2.3')),
'less/eq than' => array('<=1.2.3', new VersionConstraint('<=', '1.2.3')),
'great/eq than' => array('>=1.2.3', new VersionConstraint('>=', '1.2.3')),
'equals' => array('=1.2.3', new VersionConstraint('=', '1.2.3')),
'double equals' => array('==1.2.3', new VersionConstraint('=', '1.2.3')),
'no op means eq' => array('1.2.3', new VersionConstraint('=', '1.2.3')),
'completes version' => array('=1.0', new VersionConstraint('=', '1.0.0')),
'accepts spaces' => array('>= 1.2.3', new VersionConstraint('>=', '1.2.3')),
);
}
/**
* @dataProvider wildcardConstraints
*/
public function testParseConstraintsWildcard($input, $min, $max)
{
$parser = new VersionParser;
$expected = new MultiConstraint(array($min, $max));
$this->assertEquals((string) $expected, (string) $parser->parseConstraints($input));
}
public function wildcardConstraints()
{
return array(
array('2.*', new VersionConstraint('>=', '2.0.0'), new VersionConstraint('<', '3.0.0')),
array('20.*', new VersionConstraint('>=', '20.0.0'), new VersionConstraint('<', '21.0.0')),
array('2.0.*', new VersionConstraint('>=', '2.0.0'), new VersionConstraint('<', '2.1.0')),
array('2.2.*', new VersionConstraint('>=', '2.2.0'), new VersionConstraint('<', '2.3.0')),
array('2.10.*', new VersionConstraint('>=', '2.10.0'), new VersionConstraint('<', '2.11.0')),
);
}
/**
* @dataProvider failingConstraints
* @expectedException UnexpectedValueException
*/
public function testParseConstraintsFails($input)
{
$parser = new VersionParser;
$parser->parseConstraints($input);
}
public function failingConstraints()
{
return array(
'empty ' => array(''),
'invalid version' => array('1.0.0-meh'),
);
}
}
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