fix constraint to allow upgrading d9 to d10 (#6)

* test upgrading d9 to d10

* check -W

* test with match all

* update the update call for drupal core

* add back setting constraint from lock

* stop being fancy with upper constraint

* fix phpunit

* update readme

.github/workflows/integration.yml

@@ -73,3 +73,43 @@ jobs:
           cd ~/drupal
           composer require drupal/purge:3.x-dev#1342bb92b5304c6c316357d2c2c71a62a34d3eff -W
           composer show drupal/purge
+  d9_to_d10:
+    runs-on: "ubuntu-latest"
+    name: "D9 to D10"
+    steps:
+      - name: "Checkout"
+        uses: "actions/checkout@v2"
+      - name: "Install PHP"
+        uses: "shivammathur/setup-php@v2"
+        with:
+          coverage: none
+          php-version: 8.1
+          tools: composer:v2
+          extensions: dom, curl, libxml, mbstring, zip, pdo, mysql, pdo_mysql, bcmath, gd, exif, iconv
+      - name: Setup Drupal
+        uses: bluehorndigital/[email protected]
+        with:
+          version: ^9
+          path: ~/drupal
+      - name: Require self
+        run: |
+          cd ~/drupal
+          composer require mglaman/composer-drupal-lenient *@dev
+      - name: Configure allowed list
+        run: |
+          cd ~/drupal
+          composer config --merge --json extra.drupal-lenient.allowed-list '["drupal/purge"]'
+      - name: Add module release
+        run: |
+          cd ~/drupal
+          composer require drupal/purge:3.x-dev#1342bb92b5304c6c316357d2c2c71a62a34d3eff -W
+          composer show drupal/purge
+      - name: Upgrade Drupal
+        run: |
+          cd ~/drupal
+          composer require drupal/core-recommended:^10@alpha drupal/core-dev:^10@alpha drupal/core-composer-scaffold:^10@alpha drupal/core-project-message:^10@alpha drush/drush:^11.0 guzzlehttp/guzzle:^7.0 --with-all-dependencies --no-update
+          composer update --no-progress --prefer-dist
+      - name: Show module
+        run: |
+          cd ~/drupal
+          composer show drupal/purge

README.md

@@ -15,7 +15,7 @@ See [Add a composer plugin that supports 'composer require-lenient' to support m
 
 This subscribes to `PluginEvents::PRE_POOL_CREATE` and filters packages. This is inspired by `symfony/flex`, but it does
 not filter out packages. It rewrites the `drupal/core` constraint on any package with a type of `drupal-*`,
-excluding `drupal-core`. The constraint is set to a maximum version of the installed `drupal/core` package version.
+excluding `drupal-core`. The constraint is set to `'^8 || ^9 || ^10'` for `drupal/core`.
 
 ## Try it
 

src/PackageRequiresAdjuster.php

@@ -11,6 +11,8 @@
 use Composer\Semver\Constraint\Constraint;
 use Composer\Semver\Constraint\ConstraintInterface;
 use Composer\Semver\Constraint\MatchAllConstraint;
+use Composer\Semver\Constraint\MultiConstraint;
+use Composer\Semver\VersionParser;
 
 final class PackageRequiresAdjuster
 {
@@ -19,17 +21,8 @@ final class PackageRequiresAdjuster
     public function __construct(
         private readonly Composer $composer
     ) {
-        $this->drupalCoreConstraint = new MatchAllConstraint();
-    }
-
-    public function setDrupalCoreConstraint(): void
-    {
-        $locker = $this->composer->getLocker();
-        foreach ($locker->getLockedRepository()->getPackages() as $package) {
-            if ($package->getType() === 'drupal-core') {
-                $this->drupalCoreConstraint = new Constraint('<=', $package->getVersion());
-            }
-        }
+        $this->drupalCoreConstraint = (new VersionParser())
+            ->parseConstraints('^8 || ^9 || ^10');
     }
 
     public function applies(PackageInterface $package): bool

src/Plugin.php

@@ -17,8 +17,6 @@ final class Plugin implements PluginInterface, EventSubscriberInterface
 
     public function modifyPackages(PrePoolCreateEvent $event): void
     {
-        $this->packageRequiresAdjuster->setDrupalCoreConstraint();
-
         $packages = $event->getPackages();
         foreach ($packages as $package) {
             if ($this->packageRequiresAdjuster->applies($package)) {

tests/PackageRequiresAdjusterTest.php

@@ -10,9 +10,7 @@
 use Composer\Package\RootPackage;
 use Composer\Repository\LockArrayRepository;
 use Composer\Semver\Constraint\Constraint;
-use Composer\Semver\Constraint\ConstraintInterface;
 use Composer\Semver\Constraint\MultiConstraint;
-use Composer\Semver\VersionParser;
 use PHPUnit\Framework\TestCase;
 
 /**
@@ -74,7 +72,6 @@ public function provideTypes(): array
     /**
      * @covers ::__construct
      * @covers ::adjust
-     * @covers ::setDrupalCoreConstraint
      *
      * @dataProvider provideAdjustData
      */
@@ -84,16 +81,6 @@ public function testAdjust(?string $coreVersion, string $expectedCoreConstraintS
         $root = new RootPackage('foo', '1.0', '1.0');
         $composer->setPackage($root);
         $adjuster = new PackageRequiresAdjuster($composer);
-        if ($coreVersion !== null) {
-            $corePackage = new Package('foo', $coreVersion, $coreVersion);
-            $corePackage->setType('drupal-core');
-            $locker = $this->createStub(Locker::class);
-            $lockedRepository = $this->createStub(LockArrayRepository::class);
-            $lockedRepository->method('getPackages')->willReturn([$corePackage]);
-            $locker->method('getLockedRepository')->willReturn($lockedRepository);
-            $composer->setLocker($locker);
-            $adjuster->setDrupalCoreConstraint();
-        }
         $originalDrupalCoreConstraint = new MultiConstraint([
             new Constraint('>=', '8.0'),
             new Constraint('>=', '9.0'),
@@ -139,8 +126,8 @@ public function testAdjust(?string $coreVersion, string $expectedCoreConstraintS
     public function provideAdjustData(): array
     {
         return [
-            [null, '*'],
-            ['10.0.0-alpha5', '<= 10.0.0-alpha5'],
+            [null, '^8 || ^9 || ^10'],
+            ['10.0.0-alpha5', '^8 || ^9 || ^10'],
         ];
     }
 }