Updated the regexp and added more test cases.

src/Composer/Package/Archiver/BaseExcludeFilter.php

@@ -136,12 +136,15 @@ abstract class BaseExcludeFilter
         if (strlen($rule) && $rule[0] === '/') {
             $pattern .= '^/';
             $rule = substr($rule, 1);
-        } elseif (false === strpos($rule, '/') || strlen($rule) - 1 === strpos($rule, '/')) {
+        } elseif (strlen($rule) - 1 === strpos($rule, '/')) {
+            $pattern .= '^/';
+            $rule = substr($rule, 0, -1);
+        } elseif (false === strpos($rule, '/')) {
             $pattern .= '/';
         }
 
         // remove delimiters as well as caret (^) and dollar sign ($) from the regex
-        $pattern .= substr(Finder\Glob::toRegex($rule), 2, -2) . '/*.*$';
+        $pattern .= substr(Finder\Glob::toRegex($rule), 2, -2) . '(?=$|/)';
 
         return array($pattern . '#', $negate, false);
     }

tests/Composer/Test/Package/Archiver/ArchivableFilesFinderTest.php

@@ -58,12 +58,10 @@ class ArchivableFilesFinderTest extends \PHPUnit_Framework_TestCase
             'D/prefixD',
             'D/prefixE',
             'D/prefixF',
-            'E/prefixA.foo',
-            'E/prefixB.foo',
-            'E/prefixC.foo',
-            'E/prefixD.foo',
-            'E/prefixE.foo',
-            'E/prefixF.foo',
+            '/E/subtestA.foo',
+            '/F/subtestA.foo',
+            '/G/subtestA.foo',
+            '/H/subtestA.foo',
             'toplevelA.foo',
             'toplevelB.foo',
             'prefixA.foo',
@@ -72,6 +70,10 @@ class ArchivableFilesFinderTest extends \PHPUnit_Framework_TestCase
             'prefixD.foo',
             'prefixE.foo',
             'prefixF.foo',
+            'parameters.yml',
+            'parameters.yml.dist',
+            '!important!.txt',
+            '!important_too!.txt'
         );
 
         foreach ($fileTree as $relativePath) {
@@ -100,6 +102,8 @@ class ArchivableFilesFinderTest extends \PHPUnit_Framework_TestCase
         $this->finder = new ArchivableFilesFinder($this->sources, $excludes);
 
         $this->assertArchivableFiles(array(
+            '/!important!.txt',
+            '/!important_too!.txt',
             '/A/prefixA.foo',
             '/A/prefixD.foo',
             '/A/prefixE.foo',
@@ -119,10 +123,12 @@ class ArchivableFilesFinderTest extends \PHPUnit_Framework_TestCase
             '/D/prefixD',
             '/D/prefixE',
             '/D/prefixF',
-            '/E/prefixA.foo',
-            '/E/prefixD.foo',
-            '/E/prefixE.foo',
-            '/E/prefixF.foo',
+            '/E/subtestA.foo',
+            '/F/subtestA.foo',
+            '/G/subtestA.foo',
+            '/H/subtestA.foo',
+            '/parameters.yml',
+            '/parameters.yml.dist',
             '/prefixB.foo',
             '/prefixD.foo',
             '/prefixE.foo',
@@ -154,7 +160,12 @@ class ArchivableFilesFinderTest extends \PHPUnit_Framework_TestCase
             'refixD.foo',
             '/C',
             'D/prefixA',
-            'E/'
+            'E',
+            'F/',
+            'G/*',
+            'H/**',
+            'parameters.yml',
+            '\!important!.txt'
         )));
 
         // git does not currently support negative git attributes
@@ -195,9 +206,15 @@ class ArchivableFilesFinderTest extends \PHPUnit_Framework_TestCase
             '# comments',
             '',
             '^prefixD.foo',
+            'D/prefixA',
+            'parameters.yml',
+            '\!important!.txt',
+            'E',
+            'F/',
             'syntax: glob',
             'prefixF.*',
             'B/*',
+            'H/**',
         )));
 
         $this->finder = new ArchivableFilesFinder($this->sources, array());
@@ -208,7 +225,9 @@ class ArchivableFilesFinderTest extends \PHPUnit_Framework_TestCase
             'hg archive archive.zip'
         );
 
-        array_shift($expectedFiles); // remove .hg_archival.txt
+        // Remove .hg_archival.txt from the expectedFiles
+        $archiveKey = array_search('/.hg_archival.txt', $expectedFiles);
+        array_splice($expectedFiles, $archiveKey, 1);
 
         $this->assertArchivableFiles($expectedFiles);
     }

tests/Composer/Test/Package/Archiver/GitExcludeFilterTest.php

@@ -29,8 +29,8 @@ class GitExcludeFilterTest extends \PHPUnit_Framework_TestCase
     public function patterns()
     {
         return array(
-            array('app/config/parameters.yml', array('#(?=[^\.])app/(?=[^\.])config/(?=[^\.])parameters\.yml/*.*$#', false, false)),
-            array('!app/config/parameters.yml', array('#(?=[^\.])app/(?=[^\.])config/(?=[^\.])parameters\.yml/*.*$#', true, false)),
+            array('app/config/parameters.yml', array('#(?=[^\.])app/(?=[^\.])config/(?=[^\.])parameters\.yml(?=$|/)#', false, false)),
+            array('!app/config/parameters.yml', array('#(?=[^\.])app/(?=[^\.])config/(?=[^\.])parameters\.yml(?=$|/)#', true, false)),
         );
     }
 }