Fix pretty guessed versions to show nicely on numeric branches, refs #6845

src/Composer/Package/Version/VersionGuesser.php

@@ -66,23 +66,36 @@ class VersionGuesser
         if (function_exists('proc_open')) {
             $versionData = $this->guessGitVersion($packageConfig, $path);
             if (null !== $versionData && null !== $versionData['version']) {
-                return $versionData;
+                return $this->postprocess($versionData);
             }
 
             $versionData = $this->guessHgVersion($packageConfig, $path);
             if (null !== $versionData && null !== $versionData['version']) {
-                return $versionData;
+                return $this->postprocess($versionData);
             }
 
             $versionData = $this->guessFossilVersion($packageConfig, $path);
             if (null !== $versionData && null !== $versionData['version']) {
-                return $versionData;
+                return $this->postprocess($versionData);
             }
 
-            return $this->guessSvnVersion($packageConfig, $path);
+            $versionData = $this->guessSvnVersion($packageConfig, $path);
+            if (null !== $versionData && null !== $versionData['version']) {
+                return $this->postprocess($versionData);
+            }
         }
     }
 
+    private function postprocess(array $versionData)
+    {
+        // make sure that e.g. dev-1.5 gets converted to 1.5.x-dev
+        if ('dev-' !== substr($versionData['version'], 0, 4)) {
+            $versionData['pretty_version'] = preg_replace('{(\.9{7})+}', '.x', $versionData['version']);
+        }
+
+        return $versionData;
+    }
+
     private function guessGitVersion(array $packageConfig, $path)
     {
         GitUtil::cleanEnv();

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

@@ -412,4 +412,35 @@ class VersionGuesserTest extends \PHPUnit_Framework_TestCase
 
         $this->assertEquals("dev-foo", $versionData['version']);
     }
+
+    public function testNumericBranchesShowNicely()
+    {
+        $executor = $this->getMockBuilder('\\Composer\\Util\\ProcessExecutor')
+            ->setMethods(array('execute'))
+            ->disableArgumentCloning()
+            ->disableOriginalConstructor()
+            ->getMock()
+        ;
+
+        $self = $this;
+
+        $executor
+            ->expects($this->at(0))
+            ->method('execute')
+            ->willReturnCallback(function ($command, &$output) use ($self) {
+                $self->assertEquals('git branch --no-color --no-abbrev -v', $command);
+                $output = "* 1.5 03a15d220da53c52eddd5f32ffca64a7b3801bea Commit message\n";
+
+                return 0;
+            })
+        ;
+
+        $config = new Config;
+        $config->merge(array('repositories' => array('packagist' => false)));
+        $guesser = new VersionGuesser($config, $executor, new VersionParser());
+        $versionData = $guesser->guessVersion(array(), 'dummy/path');
+
+        $this->assertEquals("1.5.x-dev", $versionData['pretty_version']);
+        $this->assertEquals("1.5.9999999.9999999-dev", $versionData['version']);
+    }
 }