Rename findPackagesByName to findPackages and allow version arg

src/Composer/Command/ShowCommand.php

@@ -118,7 +118,7 @@ EOT
 
         // we only have a name, so search for the highest version of the given package
         $highestVersion = null;
-        foreach ($repos->findPackagesByName($input->getArgument('package')) as $package) {
+        foreach ($repos->findPackages($input->getArgument('package')) as $package) {
             if (null === $highestVersion || version_compare($package->getVersion(), $highestVersion->getVersion(), '>=')) {
                 $highestVersion = $package;
             }
@@ -164,7 +164,7 @@ EOT
 
         $versions = array();
 
-        foreach ($repos->findPackagesByName($package->getName()) as $version) {
+        foreach ($repos->findPackages($package->getName()) as $version) {
             $versions[] = $version->getPrettyVersion();
         }
 

src/Composer/Repository/ArrayRepository.php

@@ -44,14 +44,21 @@ class ArrayRepository implements RepositoryInterface
     /**
      * {@inheritDoc}
      */
-    public function findPackagesByName($name)
+    public function findPackages($name, $version = null)
     {
         // normalize name
         $name = strtolower($name);
+
+        // normalize version
+        if (null !== $version) {
+            $versionParser = new VersionParser();
+            $version = $versionParser->normalize($version);
+        }
+
         $packages = array();
 
         foreach ($this->getPackages() as $package) {
-            if ($package->getName() === $name) {
+            if ($package->getName() === $name && (null === $version || $version === $package->getVersion())) {
                 $packages[] = $package;
             }
         }

src/Composer/Repository/CompositeRepository.php

@@ -68,12 +68,12 @@ class CompositeRepository implements RepositoryInterface
     /**
      * {@inheritdoc}
      */
-    public function findPackagesByName($name)
+    public function findPackages($name, $version = null)
     {
         $packages = array();
         foreach ($this->repositories as $repository) {
             /* @var $repository RepositoryInterface */
-            $packages[] = $repository->findPackagesByName($name);
+            $packages[] = $repository->findPackages($name, $version);
         }
         return call_user_func_array('array_merge', $packages);
     }

src/Composer/Repository/RepositoryInterface.php

@@ -32,7 +32,7 @@ interface RepositoryInterface extends \Countable
     function hasPackage(PackageInterface $package);
 
     /**
-     * Searches for a package by it's name and version (if has one).
+     * Searches for the first match of a package by name and version.
      *
      * @param   string  $name       package name
      * @param   string  $version    package version
@@ -42,13 +42,14 @@ interface RepositoryInterface extends \Countable
     function findPackage($name, $version);
 
     /**
-     * Searches for packages by it's name.
+     * Searches for all packages matching a name and optionally a version.
      *
      * @param   string  $name       package name
+     * @param   string  $version    package version
      *
      * @return  array
      */
-    function findPackagesByName($name);
+    function findPackages($name, $version = null);
 
     /**
      * Returns list of registered packages.

src/Composer/Repository/RepositoryManager.php

@@ -50,6 +50,25 @@ class RepositoryManager
         }
     }
 
+    /**
+     * Searches for all packages matching a name and optionally a version in managed repositories.
+     *
+     * @param   string  $name       package name
+     * @param   string  $version    package version
+     *
+     * @return  array
+     */
+    public function findPackages($name, $version)
+    {
+        $packages = array();
+
+        foreach ($this->repositories as $repository) {
+            $packages = array_merge($packages, $repository->findPackages($name, $version));
+        }
+
+        return $packages;
+    }
+
     /**
      * Adds repository
      *

tests/Composer/Test/Repository/ArrayRepositoryTest.php

@@ -51,18 +51,18 @@ class ArrayRepositoryTest extends TestCase
         $this->assertFalse($repo->hasPackage($this->getPackage('bar', '1')));
     }
 
-    public function testFindPackagesByName()
+    public function testFindPackages()
     {
         $repo = new ArrayRepository();
         $repo->addPackage($this->getPackage('foo', '1'));
         $repo->addPackage($this->getPackage('bar', '2'));
         $repo->addPackage($this->getPackage('bar', '3'));
 
-        $foo = $repo->findPackagesByName('foo');
+        $foo = $repo->findPackages('foo');
         $this->assertCount(1, $foo);
         $this->assertEquals('foo', $foo[0]->getName());
 
-        $bar = $repo->findPackagesByName('bar');
+        $bar = $repo->findPackages('bar');
         $this->assertCount(2, $bar);
         $this->assertEquals('bar', $bar[0]->getName());
     }

tests/Composer/Test/Repository/CompositeRepositoryTest.php

@@ -52,7 +52,7 @@ class CompositeRepositoryTest extends TestCase
         $this->assertNull($repo->findPackage('foo', '2'), "Should not find package 'foo/2'");
     }
 
-    public function testFindPackagesByName()
+    public function testFindPackages()
     {
         $arrayRepoOne = new ArrayRepository;
         $arrayRepoOne->addPackage($this->getPackage('foo', '1'));
@@ -66,15 +66,15 @@ class CompositeRepositoryTest extends TestCase
 
         $repo = new CompositeRepository(array($arrayRepoOne, $arrayRepoTwo));
 
-        $bats = $repo->findPackagesByName('bat');
+        $bats = $repo->findPackages('bat');
         $this->assertCount(1, $bats, "Should find one instance of 'bats' (defined in just one repository)");
         $this->assertEquals('bat', $bats[0]->getName(), "Should find packages named 'bat'");
 
-        $bars = $repo->findPackagesByName('bar');
+        $bars = $repo->findPackages('bar');
         $this->assertCount(2, $bars, "Should find two instances of 'bar' (both defined in the same repository)");
         $this->assertEquals('bar', $bars[0]->getName(), "Should find packages named 'bar'");
 
-        $foos = $repo->findPackagesByName('foo');
+        $foos = $repo->findPackages('foo');
         $this->assertCount(3, $foos, "Should find three instances of 'foo' (two defined in one repository, the third in the other)");
         $this->assertEquals('foo', $foos[0]->getName(), "Should find packages named 'foo'");
     }