Fix invalid version format

src/Composer/Package/Version/VersionParser.php

@@ -122,6 +122,12 @@ class VersionParser
         } elseif (preg_match('{^v?(\d{4}(?:[.:-]?\d{2}){1,6}(?:[.:-]?\d{1,3})?)'.self::$modifierRegex.'$}i', $version, $matches)) { // match date-based versioning
             $version = preg_replace('{\D}', '-', $matches[1]);
             $index = 2;
+        } elseif (preg_match('{^v?(\d{4,})(\.\d+)?(\.\d+)?(\.\d+)?'.self::$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;
         }
 
         // add version modifiers if a version was matched

tests/Composer/Test/Package/Version/VersionParserTest.php

@@ -79,34 +79,35 @@ class VersionParserTest extends \PHPUnit_Framework_TestCase
     public function successfulNormalizedVersions()
     {
         return array(
-            'none'              => array('1.0.0',               '1.0.0.0'),
-            'none/2'            => array('1.2.3.4',             '1.2.3.4'),
-            'parses state'      => array('1.0.0RC1dev',         '1.0.0.0-RC1-dev'),
-            'CI parsing'        => array('1.0.0-rC15-dev',      '1.0.0.0-RC15-dev'),
-            'delimiters'        => array('1.0.0.RC.15-dev',     '1.0.0.0-RC15-dev'),
-            'RC uppercase'      => array('1.0.0-rc1',           '1.0.0.0-RC1'),
-            'patch replace'     => array('1.0.0.pl3-dev',       '1.0.0.0-patch3-dev'),
-            'forces w.x.y.z'    => array('1.0-dev',             '1.0.0.0-dev'),
-            'forces w.x.y.z/2'  => array('0',                   '0.0.0.0'),
-            'parses long'       => array('10.4.13-beta',        '10.4.13.0-beta'),
-            'expand shorthand'  => array('10.4.13-b',           '10.4.13.0-beta'),
-            'expand shorthand2' => array('10.4.13-b5',          '10.4.13.0-beta5'),
-            'strips leading v'  => array('v1.0.0',              '1.0.0.0'),
-            'strips v/datetime' => array('v20100102',           '20100102'),
-            'parses dates y-m'  => array('2010.01',             '2010-01'),
-            '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'),
-            'parses dt+patch'   => array('20100102-203040-p1',  '20100102-203040-patch1'),
-            'parses master'     => array('dev-master',          '9999999-dev'),
-            'parses trunk'      => array('dev-trunk',           '9999999-dev'),
-            'parses branches'   => array('1.x-dev',             '1.9999999.9999999.9999999-dev'),
-            'parses arbitrary'  => array('dev-feature-foo',     'dev-feature-foo'),
-            'parses arbitrary2' => array('DEV-FOOBAR',          'dev-FOOBAR'),
-            'parses arbitrary3' => array('dev-feature/foo',     'dev-feature/foo'),
-            'ignores aliases'   => array('dev-master as 1.0.0', '9999999-dev'),
+            'none'               => array('1.0.0',               '1.0.0.0'),
+            'none/2'             => array('1.2.3.4',             '1.2.3.4'),
+            'parses state'       => array('1.0.0RC1dev',         '1.0.0.0-RC1-dev'),
+            'CI parsing'         => array('1.0.0-rC15-dev',      '1.0.0.0-RC15-dev'),
+            'delimiters'         => array('1.0.0.RC.15-dev',     '1.0.0.0-RC15-dev'),
+            'RC uppercase'       => array('1.0.0-rc1',           '1.0.0.0-RC1'),
+            'patch replace'      => array('1.0.0.pl3-dev',       '1.0.0.0-patch3-dev'),
+            'forces w.x.y.z'     => array('1.0-dev',             '1.0.0.0-dev'),
+            'forces w.x.y.z/2'   => array('0',                   '0.0.0.0'),
+            'parses long'        => array('10.4.13-beta',        '10.4.13.0-beta'),
+            'expand shorthand'   => array('10.4.13-b',           '10.4.13.0-beta'),
+            'expand shorthand2'  => array('10.4.13-b5',          '10.4.13.0-beta5'),
+            'strips leading v'   => array('v1.0.0',              '1.0.0.0'),
+            'strips v/datetime'  => array('v20100102',           '20100102'),
+            'parses dates y-m'   => array('2010.01',             '2010-01'),
+            '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 dates y.m.Y' => array('2010.1.555',          '2010.1.555.0'),
+            'parses datetime'    => array('20100102-203040',     '20100102-203040'),
+            'parses dt+number'   => array('20100102203040-10',   '20100102203040-10'),
+            'parses dt+patch'    => array('20100102-203040-p1',  '20100102-203040-patch1'),
+            'parses master'      => array('dev-master',          '9999999-dev'),
+            'parses trunk'       => array('dev-trunk',           '9999999-dev'),
+            'parses branches'    => array('1.x-dev',             '1.9999999.9999999.9999999-dev'),
+            'parses arbitrary'   => array('dev-feature-foo',     'dev-feature-foo'),
+            'parses arbitrary2'  => array('DEV-FOOBAR',          'dev-FOOBAR'),
+            'parses arbitrary3'  => array('dev-feature/foo',     'dev-feature/foo'),
+            'ignores aliases'    => array('dev-master as 1.0.0', '9999999-dev'),
         );
     }