From 2c84be47c29377b906c24a613c360e184cb9c458 Mon Sep 17 00:00:00 2001
From: David Jack Wange Olrik <david@olrik.dk>
Date: Sat, 20 Aug 2016 15:49:50 +0200
Subject: [PATCH] Add support for seamless execution of local binaries

Projects that add binaries to `vendor-bin` can now execute those via the same command as projects that consume them without installing them first.

In list overview local commands have a `(local)` tag to distinguish them from commands installed in `vendor-bin`.

Local binaries take precedence over `vendor-bin` which takes precedence over binaries in path.
---
 src/Composer/Command/ExecCommand.php                  |  3 ++-
 src/Composer/EventDispatcher/EventDispatcher.php      | 11 +++++++++++
 .../Test/EventDispatcher/EventDispatcherTest.php      |  2 ++
 3 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/src/Composer/Command/ExecCommand.php b/src/Composer/Command/ExecCommand.php
index 34d1362e5..892baf746 100644
--- a/src/Composer/Command/ExecCommand.php
+++ b/src/Composer/Command/ExecCommand.php
@@ -45,9 +45,10 @@ class ExecCommand extends BaseCommand
         $binDir = $composer->getConfig()->get('bin-dir');
         if ($input->getOption('list') || !$input->getArgument('binary')) {
             $bins = glob($binDir . '/*');
+            $bins = array_merge($bins, array_map(function($e) { return "$e (local)"; }, $composer->getPackage()->getBinaries()));
 
             if (!$bins) {
-                throw new \RuntimeException("No binaries found in bin-dir ($binDir)");
+                throw new \RuntimeException("No binaries found in composer.json or in bin-dir ($binDir)");
             }
 
             $this->getIO()->write(<<<EOT
diff --git a/src/Composer/EventDispatcher/EventDispatcher.php b/src/Composer/EventDispatcher/EventDispatcher.php
index 7d473c4ad..22267d8aa 100644
--- a/src/Composer/EventDispatcher/EventDispatcher.php
+++ b/src/Composer/EventDispatcher/EventDispatcher.php
@@ -220,6 +220,17 @@ class EventDispatcher
                 } else {
                     $this->io->writeError(sprintf('> %s', $exec));
                 }
+
+                $possibleLocalBinaries = $this->composer->getPackage()->getBinaries();
+                if ( $possibleLocalBinaries ) {
+                    foreach ( $possibleLocalBinaries as $localExec ) {
+                        if ( preg_match("/\b${callable}$/", $localExec)) {
+                            $exec = str_replace($callable, $localExec, $exec);
+                            break;
+                        }
+                    }
+                }
+
                 if (0 !== ($exitCode = $this->process->execute($exec))) {
                     $this->io->writeError(sprintf('<error>Script %s handling the %s event returned with error code '.$exitCode.'</error>', $callable, $event->getName()));
 
diff --git a/tests/Composer/Test/EventDispatcher/EventDispatcherTest.php b/tests/Composer/Test/EventDispatcher/EventDispatcherTest.php
index fc1c9ce86..d893810e1 100644
--- a/tests/Composer/Test/EventDispatcher/EventDispatcherTest.php
+++ b/tests/Composer/Test/EventDispatcher/EventDispatcherTest.php
@@ -351,6 +351,8 @@ class EventDispatcherTest extends TestCase
         $composer = new Composer;
         $config = new Config;
         $composer->setConfig($config);
+        $package = $this->getMock('Composer\Package\RootPackageInterface');
+        $composer->setPackage($package);
 
         return $composer;
     }