Drastically simplify using Composer Runtime API (#65)

---------

Co-authored-by: Moshe Weitzman <weitzman@tejasa.com>

.github/workflows/ci.yml

@@ -8,7 +8,7 @@ jobs:
     strategy:
       matrix:
         operating-system: ['ubuntu-latest']
-        php-versions: ['7.2', '7.3', '7.4', '8.0']
+        php-versions: ['8.1']
     steps:
       - name: Checkout
         uses: actions/checkout@v2
@@ -21,5 +21,8 @@ jobs:
       - name: Install dependencies
         run: composer install
 
+      - name: Install fixtures
+        run: composer install-fixtures
+
       - name: Run unit tests
         run: ./vendor/bin/phpunit

.gitignore

@@ -1,3 +1,7 @@
 /composer.lock
 /vendor/
 /.phpunit.result.cache
+/tests/fixtures/custom-vendor/foo
+/tests/fixtures/default/web
+/tests/fixtures/default/vendor
+/tests/fixtures/*/composer.lock

README.md

@@ -3,45 +3,22 @@
 [![GitHub Workflow Status](https://img.shields.io/github/actions/workflow/status/webflo/drupal-finder/ci.yml)](https://github.com/webflo/drupal-finder/actions/workflows/ci.yml)
 [![Packagist](https://img.shields.io/packagist/v/webflo/drupal-finder.svg)](https://packagist.org/packages/webflo/drupal-finder)
 
-Drupal Finder provides a class to locate a Drupal installation in a given path.
+Drupal Finder provides a class to locate a Drupal installation based on Composer metadata.
 
 ## Usage
 
 ```PHP
-$drupalFinder = new \DrupalFinder\DrupalFinder(getcwd());
+$drupalFinder = new \DrupalFinder\DrupalFinderComposerRuntime();
 
 $drupalRoot = $drupalFinder->getDrupalRoot();
 $composerRoot = $drupalFinder->getComposerRoot();
 $vendorDir = $drupalFinder->getVendorDir();
 ```
 
-### Environment variables
-
-If a set of environment variables is specified, then Drupal Finder uses those
-values to determine the paths of the pertinent directories:
-
-- `DRUPAL_FINDER_DRUPAL_ROOT`
-- `DRUPAL_FINDER_COMPOSER_ROOT`
-- `DRUPAL_FINDER_VENDOR_DIR`
-
-For example:
-
-- `DRUPAL_FINDER_DRUPAL_ROOT=/var/www/web`
-- `DRUPAL_FINDER_COMPOSER_ROOT=/var/www`
-- `DRUPAL_FINDER_VENDOR_DIR=/var/www/vendor`
-
-This is useful for situations where you are containerizing an application,
-directories may be in odd places, or a composer.json might be missing since it
-is unneeded in a final build artifact.
-
-You are not required to set all the environment variables to use this
-feature. If you set an environment variable, then its associated getter
-function will return the value assigned to the environment variable.
-
 ## Examples
 
-- [Drupal Console Launcher](https://github.com/hechoendrupal/drupal-console-launcher)
-- [Drush Launcher](https://github.com/drush-ops/drush-launcher)
+- [Drush](https://github.com/drush-ops/drush)
+- [phpstan-drupal](https://github.com/mglaman/phpstan-drupal)
 
 ## License
 

composer.json

@@ -1,6 +1,6 @@
 {
     "name": "webflo/drupal-finder",
-    "description": "Helper class to locate a Drupal installation from a given path.",
+    "description": "Helper class to locate a Drupal installation.",
     "license": "GPL-2.0-or-later",
     "type": "library",
     "authors": [
@@ -10,20 +10,42 @@
         }
     ],
     "require": {
-        "ext-json": "*"
+        "composer-runtime-api": "^2.2",
+        "php": ">=8.1"
     },
     "autoload": {
-        "classmap": [
-            "src/DrupalFinder.php"
-        ]
+        "psr-4": {
+            "DrupalFinder\\": "src/"
+        }
     },
     "autoload-dev": {
         "psr-4": {
             "DrupalFinder\\Tests\\": "tests/"
         }
     },
     "require-dev": {
-        "phpunit/phpunit": "^8.5.14",
+        "phpunit/phpunit": "^10.4",
         "mikey179/vfsstream": "^1.6"
+    },
+    "config": {
+        "platform": {
+            "php": "8.1"
+        }
+    },
+    "scripts": {
+        "install-fixtures": [
+            "cd tests/fixtures/custom-vendor && composer install",
+            "cd tests/fixtures/default && composer install"
+        ],
+        "uninstall-fixtures": [
+            "rm -rf tests/fixtures/*/composer.lock",
+            "rm -rf tests/fixtures/custom-vendor/foo",
+            "rm -rf tests/fixtures/default/web",
+            "rm -rf tests/fixtures/default/vendor"
+        ],
+        "reinstall-fixtures": [
+            "@uninstall-fixtures",
+            "@install-fixtures"
+        ]
     }
 }

phpunit.xml.dist

@@ -3,6 +3,7 @@
   <testsuites>
     <testsuite name="DrupalFinder Test Suite">
       <directory>./tests</directory>
+      <exclude>./tests/fixtures</exclude>
     </testsuite>
   </testsuites>
 </phpunit>

src/DrupalFinder.php

@@ -7,6 +7,10 @@
 
 namespace DrupalFinder;
 
+/**
+ * @deprecated in drupal-finder:1.3.0 and is removed from drupal-finder:2.0.0.
+ *   Use \DrupalFinder\DrupalFinderComposerRuntime instead.
+ */
 class DrupalFinder
 {
     /**

src/DrupalFinderComposerRuntime.php

@@ -0,0 +1,41 @@
+<?php
+
+/**
+ * @file
+ * Contains \DrupalFinder\DrupalFinderComposerRuntime.
+ */
+
+namespace DrupalFinder;
+
+use Composer\InstalledVersions;
+
+class DrupalFinderComposerRuntime
+{
+    /**
+     * Get the Drupal root path.
+     */
+    public function getDrupalRoot(): ?string
+    {
+      $core = InstalledVersions::getInstallPath('drupal/core');
+      return $core ? realpath(dirname($core)) : null;
+    }
+
+    /**
+     * Get the path to the Composer root directory.
+     */
+    public function getComposerRoot(): ?string
+    {
+        $root = InstalledVersions::getRootPackage();
+        return realpath($root['install_path']);
+    }
+
+    /**
+     * Get the vendor path.
+     */
+    public function getVendorDir(): ?string
+    {
+      $reflection = new \ReflectionClass(InstalledVersions::class);
+      return realpath(dirname(dirname($reflection->getFileName())));
+    }
+
+}

tests/Drupal7FinderTest.php

@@ -5,6 +5,9 @@
 use DrupalFinder\DrupalFinder;
 use org\bovigo\vfs\vfsStream;
 
+/**
+ * @deprecated in drupal-finder:1.3.0 and is removed from drupal-finder:2.0.0.
+ */
 class Drupal7FinderTest extends DrupalFinderTestBase
 {
     protected static $fileStructure = [

tests/Drupal8FinderTest.php

@@ -5,6 +5,9 @@
 use org\bovigo\vfs\vfsStream;
 use DrupalFinder\DrupalFinder;
 
+/**
+ * @deprecated in drupal-finder:1.3.0 and is removed from drupal-finder:2.0.0.
+ */
 class Drupal8FinderTest extends DrupalFinderTestBase
 {
     protected static $fileStructure = [

tests/DrupalFinderComposerRuntimeTest.php

@@ -0,0 +1,39 @@
+<?php
+
+namespace DrupalFinder\Tests;
+
+use PHPUnit\Framework\TestCase;
+
+class DrupalFinderComposerRuntimeTest extends TestCase {
+
+  protected const installFixtures = 'Execute "composer install-fixtures" first.';
+
+  /**
+   * @runInSeparateProcess
+   */
+  public function testDefault() {
+    $basePath = realpath( __DIR__ . '/fixtures/default');
+    $this->assertDirectoryExists($basePath . '/vendor', static::installFixtures);
+    $this->assertDirectoryExists($basePath . '/web', static::installFixtures);
+
+    $result = json_decode(require $basePath  . '/drupal-finder.php', TRUE);
+    $this->assertSame($result['getComposerRoot'], $basePath);
+    $this->assertSame($result['getVendorDir'], $basePath . '/vendor');
+    $this->assertSame($result['getDrupalRoot'], $basePath . '/web');
+  }
+
+  /**
+   * @runInSeparateProcess
+   */
+  public function testCustomVendor() {
+    $basePath = realpath( __DIR__ . '/fixtures/custom-vendor');
+    $this->assertDirectoryExists($basePath . '/foo/bar', static::installFixtures);
+    $this->assertDirectoryExists($basePath . '/foo/bar/drupal', static::installFixtures);
+
+    $result = json_decode(require $basePath  . '/drupal-finder.php', TRUE);
+    $this->assertSame($result['getComposerRoot'], $basePath);
+    $this->assertSame($result['getVendorDir'], $basePath . '/foo/bar');
+    $this->assertSame($result['getDrupalRoot'], $basePath . '/foo/bar/drupal');
+  }
+
+}

tests/DrupalFinderTestBase.php

@@ -7,6 +7,9 @@
 use PHPUnit\Framework\SkippedTestError;
 use PHPUnit\Framework\TestCase;
 
+/**
+ * @deprecated in drupal-finder:1.3.0 and is removed from drupal-finder:2.0.0.
+ */
 abstract class DrupalFinderTestBase extends TestCase
 {
     /**

tests/fixtures/custom-vendor/composer.json

@@ -0,0 +1,17 @@
+{
+  "repositories": {
+    "drupal-finder": {
+      "type": "path",
+      "url": "../../../"
+    }
+  },
+  "require": {
+    "webflo/drupal-finder": "*",
+    "drupal/core": "^10"
+  },
+  "config": {
+    "vendor-dir": "foo/bar"
+  },
+  "minimum-stability": "dev",
+  "prefer-stable": true
+}

tests/fixtures/custom-vendor/drupal-finder.php

@@ -0,0 +1,14 @@
+<?php
+
+use DrupalFinder\DrupalFinderComposerRuntime;
+
+require __DIR__ . '/foo/bar/autoload.php';
+
+$finder = new DrupalFinderComposerRuntime();
+
+return json_encode([
+    'getComposerRoot' => $finder->getComposerRoot(),
+    'getVendorDir' => $finder->getVendorDir(),
+    'getDrupalRoot' => $finder->getDrupalRoot(),
+  ]
+);

tests/fixtures/default/composer.json

@@ -0,0 +1,27 @@
+{
+  "repositories": {
+    "drupal-finder": {
+      "type": "path",
+      "url": "../../../"
+    }
+  },
+  "require": {
+    "composer/installers": "^2.2",
+    "drupal/core": "^10",
+    "webflo/drupal-finder": "*"
+  },
+  "config": {
+    "allow-plugins": {
+      "composer/installers": true
+    }
+  },
+  "extra": {
+    "installer-paths": {
+      "web/core": [
+        "type:drupal-core"
+      ]
+    }
+  },
+  "minimum-stability": "dev",
+  "prefer-stable": true
+}

tests/fixtures/default/drupal-finder.php

@@ -0,0 +1,14 @@
+<?php
+
+use DrupalFinder\DrupalFinderComposerRuntime;
+
+require __DIR__ . '/vendor/autoload.php';
+
+$finder = new DrupalFinderComposerRuntime();
+
+return json_encode([
+    'getComposerRoot' => $finder->getComposerRoot(),
+    'getVendorDir' => $finder->getVendorDir(),
+    'getDrupalRoot' => $finder->getDrupalRoot(),
+  ]
+);