From a3b49ae44f1c8f584c06a9e6579b9b32bb612ade Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andreas=20M=C3=B6ller?= <am@localheinz.com>
Date: Sun, 15 May 2016 22:15:48 +0200
Subject: [PATCH 1/4] Enhancement: Assert that no warning is issued when using
 exact version constraint for unstable package

---
 .../Package/Loader/ValidatingArrayLoaderTest.php     | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/tests/Composer/Test/Package/Loader/ValidatingArrayLoaderTest.php b/tests/Composer/Test/Package/Loader/ValidatingArrayLoaderTest.php
index 4654fc4fc..5af956fe4 100644
--- a/tests/Composer/Test/Package/Loader/ValidatingArrayLoaderTest.php
+++ b/tests/Composer/Test/Package/Loader/ValidatingArrayLoaderTest.php
@@ -326,6 +326,18 @@ class ValidatingArrayLoaderTest extends \PHPUnit_Framework_TestCase
                 ),
                 false,
             ),
+            array(
+                array(
+                    'name' => 'foo/bar',
+                    'require' => array(
+                        'bar/unstable' => '0.3.0',
+                    ),
+                ),
+                array(
+                    // using an exact version constraint for an unstable version should not trigger a warning
+                ),
+                false,
+            ),
             array(
                 array(
                     'name' => 'foo/bar',

From bb0fb0eb267cacf27496b2d6dc2040a678888232 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andreas=20M=C3=B6ller?= <am@localheinz.com>
Date: Sun, 15 May 2016 22:24:39 +0200
Subject: [PATCH 2/4] Fix: Do not issue warning when using exact version
 constraint for unstable package

---
 src/Composer/Package/Loader/ValidatingArrayLoader.php | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/Composer/Package/Loader/ValidatingArrayLoader.php b/src/Composer/Package/Loader/ValidatingArrayLoader.php
index 13e0f7590..e60801d91 100644
--- a/src/Composer/Package/Loader/ValidatingArrayLoader.php
+++ b/src/Composer/Package/Loader/ValidatingArrayLoader.php
@@ -151,6 +151,7 @@ class ValidatingArrayLoader implements LoaderInterface
         }
 
         $unboundConstraint = new Constraint('=', $this->versionParser->normalize('dev-master'));
+        $stableConstraint = new Constraint('=', '1.0.0');
 
         foreach (array_keys(BasePackage::$supportedLinkTypes) as $linkType) {
             if ($this->validateArray($linkType) && isset($this->config[$linkType])) {
@@ -183,6 +184,7 @@ class ValidatingArrayLoader implements LoaderInterface
                             ($this->flags & self::CHECK_STRICT_CONSTRAINTS)
                             && 'require' === $linkType
                             && substr($linkConstraint, 0, 1) === '='
+                            && $stableConstraint->versionCompare($stableConstraint, $linkConstraint, '<=')
                         ) {
                             $this->warnings[] = $linkType.'.'.$package.' : exact version constraints ('.$constraint.') should be avoided if the package follows semantic versioning';
                         }

From c47b302a3c681095001369841b48104c22ecba87 Mon Sep 17 00:00:00 2001
From: Jordi Boggiano <j.boggiano@seld.be>
Date: Tue, 17 May 2016 11:59:12 +0100
Subject: [PATCH 3/4] Reset composer before loading the modified json, fixes
 #5346

---
 src/Composer/Command/RemoveCommand.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/Composer/Command/RemoveCommand.php b/src/Composer/Command/RemoveCommand.php
index 8ab9cd35f..771f7b042 100644
--- a/src/Composer/Command/RemoveCommand.php
+++ b/src/Composer/Command/RemoveCommand.php
@@ -97,6 +97,7 @@ EOT
         }
 
         // Update packages
+        $this->resetComposer();
         $composer = $this->getComposer(true, $input->getOption('no-plugins'));
         $composer->getDownloadManager()->setOutputProgress(!$input->getOption('no-progress'));
 

From 360cb4ac2af350c8b96b2fd56b67ef9d5589836a Mon Sep 17 00:00:00 2001
From: Metod <metod@simpel.si>
Date: Tue, 17 May 2016 12:06:27 +0100
Subject: [PATCH 4/4] Fix for a fatal error when system temp dir is not
 available

---
 src/Composer/Console/Application.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Composer/Console/Application.php b/src/Composer/Console/Application.php
index 2523ed4a7..f3743c2f6 100644
--- a/src/Composer/Console/Application.php
+++ b/src/Composer/Console/Application.php
@@ -188,7 +188,7 @@ class Application extends BaseApplication
             }
 
             // Check system temp folder for usability as it can cause weird runtime issues otherwise
-            Silencer::call(function() {
+            Silencer::call(function () use ($io) {
                 $tempfile = sys_get_temp_dir() . '/temp-' . md5(microtime());
                 if (!(file_put_contents($tempfile, __FILE__) && (file_get_contents($tempfile) == __FILE__) && unlink($tempfile) && !file_exists($tempfile))) {
                     $io->writeError(sprintf('<error>PHP temp directory (%s) does not exist or is not writable to Composer. Set sys_temp_dir in your php.ini</error>', sys_get_temp_dir()));