Remove plugin installer hackery

src/Composer/Installer/InstallationManager.php

@@ -467,11 +467,7 @@ class InstallationManager
     {
         $package = $operation->getPackage();
         $installer = $this->getInstaller($package->getType());
-        if ($installer instanceof PluginInstaller) {
-            $promise = $installer->install($repo, $package, $this);
-        } else {
         $promise = $installer->install($repo, $package);
-        }
         $this->markForNotification($package);
 
         return $promise;
@@ -493,11 +489,7 @@ class InstallationManager
 
         if ($initialType === $targetType) {
             $installer = $this->getInstaller($initialType);
-            if ($installer instanceof PluginInstaller) {
-                $promise = $installer->update($repo, $initial, $target, $this);
-            } else {
             $promise = $installer->update($repo, $initial, $target);
-            }
             $this->markForNotification($target);
         } else {
             $promise = $this->getInstaller($initialType)->uninstall($repo, $initial);
@@ -505,12 +497,8 @@ class InstallationManager
                 $promise = \React\Promise\resolve();
             }
 
-            $installManager = $this;
             $installer = $this->getInstaller($targetType);
-            $promise->then(function () use ($installer, $repo, $target, $installManager) {
+            $promise->then(function () use ($installer, $repo, $target) {
-                if ($installer instanceof PluginInstaller) {
-                    return $installer->install($repo, $target, $installManager);
-                }
                 return $installer->install($repo, $target);
             });
         }

src/Composer/Installer/PluginInstaller.php

@@ -63,7 +63,7 @@ class PluginInstaller extends LibraryInstaller
     /**
      * {@inheritDoc}
      */
-    public function install(InstalledRepositoryInterface $repo, PackageInterface $package, InstallationManager $installationManager = null)
+    public function install(InstalledRepositoryInterface $repo, PackageInterface $package)
     {
         $promise = parent::install($repo, $package);
         if (!$promise instanceof PromiseInterface) {
@@ -73,11 +73,8 @@ class PluginInstaller extends LibraryInstaller
         $pluginManager = $this->composer->getPluginManager();
         $self = $this;
 
-        return $promise->then(function () use ($self, $pluginManager, $package, $repo, $installationManager) {
+        return $promise->then(function () use ($self, $pluginManager, $package, $repo) {
             try {
-                if ($installationManager) {
-                    $self->updateInstalledVersions($repo, $installationManager);
-                }
                 $pluginManager->registerPackage($package, true);
             } catch (\Exception $e) {
                 $self->rollbackInstall($e, $repo, $package);
@@ -88,7 +85,7 @@ class PluginInstaller extends LibraryInstaller
     /**
      * {@inheritDoc}
      */
-    public function update(InstalledRepositoryInterface $repo, PackageInterface $initial, PackageInterface $target, InstallationManager $installationManager = null)
+    public function update(InstalledRepositoryInterface $repo, PackageInterface $initial, PackageInterface $target)
     {
         $promise = parent::update($repo, $initial, $target);
         if (!$promise instanceof PromiseInterface) {
@@ -98,12 +95,9 @@ class PluginInstaller extends LibraryInstaller
         $pluginManager = $this->composer->getPluginManager();
         $self = $this;
 
-        return $promise->then(function () use ($self, $pluginManager, $initial, $target, $repo, $installationManager) {
+        return $promise->then(function () use ($self, $pluginManager, $initial, $target, $repo) {
             try {
                 $pluginManager->deactivatePackage($initial, true);
-                if ($installationManager) {
-                    $self->updateInstalledVersions($repo, $installationManager);
-                }
                 $pluginManager->registerPackage($target, true);
             } catch (\Exception $e) {
                 $self->rollbackInstall($e, $repo, $target);
@@ -128,16 +122,4 @@ class PluginInstaller extends LibraryInstaller
         parent::uninstall($repo, $package);
         throw $e;
     }
-
-    /**
-     * TODO v3 should make this private once we can drop PHP 5.3 support
-     * @private
-     */
-    public function updateInstalledVersions(InstalledRepositoryInterface $repo, InstallationManager $installationManager)
-    {
-        $versions = $repo->generateInstalledVersions($installationManager);
-        if ($versions) {
-            \Composer\InstalledVersions::reload($versions);
-        }
-    }
 }

src/Composer/Repository/FilesystemRepository.php

@@ -141,9 +141,8 @@ class FilesystemRepository extends WritableArrayRepository
 
     /**
      * @return ?array
-     * @internal
      */
-    public function generateInstalledVersions(InstallationManager $installationManager)
+    private function generateInstalledVersions(InstallationManager $installationManager)
     {
         if (!$this->dumpVersions) {
             return null;

tests/Composer/Test/Fixtures/functional/installed-versions.test

@@ -1,8 +1,8 @@
 --TEST--
 Checks that package versions in InstalledVersions are correct on initial install. Noteworthy things:
 
-  - PluginA is already found at the moment where it is first initialized
+  - PluginA is not yet found at the moment where it is first initialized. This is a quirk which we are unlikely to fix
-  - PluginB is already found at the moment where it is first initialized
+  - PluginB is not yet found at the moment where it is first initialized, but it finds PluginA which was installed before
   - Local dependencies (symfony/*) show the local version over the Composer-bundled version once they are installed locally
 --RUN--
 update
@@ -26,12 +26,14 @@ Package operations: 6 installs, 0 updates, 0 removals
   - Downloading symfony/filesystem (%v?[2-8]\.\d+\.\d+%)
   - Installing symfony/console (99999.1.2): Symlinking from symfony-console
   - Installing plugin/a (1.1.1): Symlinking from plugin-a
-!!PluginA:1.1.1.0["root/pkg","symfony/console","composer/ca-bundle","composer/composer","composer/semver","composer/spdx-licenses","composer/xdebug-handler","justinrainbow/json-schema","psr/log","react/promise","seld/jsonlint","seld/phar-utils","symfony/debug","symfony/filesystem","symfony/finder","symfony/polyfill-ctype","symfony/polyfill-mbstring","symfony/process","plugin/a"]
+!!PluginAInit["root/pkg","symfony/console","composer/ca-bundle","composer/composer","composer/semver","composer/spdx-licenses","composer/xdebug-handler","justinrainbow/json-schema","psr/log","react/promise","seld/jsonlint","seld/phar-utils","symfony/debug","symfony/filesystem","symfony/finder","symfony/polyfill-ctype","symfony/polyfill-mbstring","symfony/process"]
+!!PluginA:null
 !!PluginB:null
 !!Versions:console:99999.1.2.0;process:%[2-8]\.\d+\.\d+.0%;filesystem:%[2-8]\.\d+\.\d+.0%
   - Installing plugin/b (2.2.2): Symlinking from plugin-b
-!!PluginB:2.2.2.0["plugin/a","root/pkg","symfony/console","composer/ca-bundle","composer/composer","composer/semver","composer/spdx-licenses","composer/xdebug-handler","justinrainbow/json-schema","psr/log","react/promise","seld/jsonlint","seld/phar-utils","symfony/debug","symfony/filesystem","symfony/finder","symfony/polyfill-ctype","symfony/polyfill-mbstring","symfony/process","plugin/b"]
+!!PluginBInit["plugin/a","root/pkg","symfony/console","composer/ca-bundle","composer/composer","composer/semver","composer/spdx-licenses","composer/xdebug-handler","justinrainbow/json-schema","psr/log","react/promise","seld/jsonlint","seld/phar-utils","symfony/debug","symfony/filesystem","symfony/finder","symfony/polyfill-ctype","symfony/polyfill-mbstring","symfony/process"]
 !!PluginA:1.1.1.0
+!!PluginB:null
 !!Versions:console:99999.1.2.0;process:%[2-8]\.\d+\.\d+.0%;filesystem:%[2-8]\.\d+\.\d+.0%
   - Installing symfony/polyfill-ctype (%v?[1-8]\.\d+\.\d+%): Extracting archive
   - Installing symfony/filesystem (%v?[2-8]\.\d+\.\d+%): Extracting archive

tests/Composer/Test/Fixtures/functional/installed-versions/plugin-a/PluginA.php

@@ -10,7 +10,8 @@ class PluginA implements PluginInterface
 {
     public function activate(Composer $composer, IOInterface $io)
     {
-        echo '!!PluginA:'.InstalledVersions::getVersion('plugin/a').JsonFile::encode(InstalledVersions::getInstalledPackages(), 320)."\n";
+        echo '!!PluginAInit'.JsonFile::encode(InstalledVersions::getInstalledPackages(), 320)."\n";
+        echo '!!PluginA:'.(InstalledVersions::isInstalled('plugin/a') ? InstalledVersions::getVersion('plugin/a') : 'null')."\n";
         echo '!!PluginB:'.(InstalledVersions::isInstalled('plugin/b') ? InstalledVersions::getVersion('plugin/b') : 'null')."\n";
         echo '!!Versions:console:'.InstalledVersions::getVersion('symfony/console').';process:'.InstalledVersions::getVersion('symfony/process').';filesystem:'.InstalledVersions::getVersion('symfony/filesystem')."\n";
     }

tests/Composer/Test/Fixtures/functional/installed-versions/plugin-b/PluginB.php

@@ -10,8 +10,9 @@ class PluginB implements PluginInterface
 {
     public function activate(Composer $composer, IOInterface $io)
     {
-        echo '!!PluginB:'.InstalledVersions::getVersion('plugin/b').JsonFile::encode(InstalledVersions::getInstalledPackages(), 320)."\n";
+        echo '!!PluginBInit'.JsonFile::encode(InstalledVersions::getInstalledPackages(), 320)."\n";
         echo '!!PluginA:'.(InstalledVersions::isInstalled('plugin/a') ? InstalledVersions::getVersion('plugin/a') : 'null')."\n";
+        echo '!!PluginB:'.(InstalledVersions::isInstalled('plugin/b') ? InstalledVersions::getVersion('plugin/b') : 'null')."\n";
         echo '!!Versions:console:'.InstalledVersions::getVersion('symfony/console').';process:'.InstalledVersions::getVersion('symfony/process').';filesystem:'.InstalledVersions::getVersion('symfony/filesystem')."\n";
     }
 

tests/Composer/Test/Fixtures/functional/installed-versions2.test

@@ -2,19 +2,20 @@
 Checks that package versions in InstalledVersions are correct during an upgrade. Noteworthy things:
 
   - PluginA sees the old version of PluginB until that upgrade happened
-  - PluginA/PluginB see an old version of themselves as the plugin is marked install InstalledVersions::reload() but that is used as fallback vs what is in vendor dir. This is a quirk which we are unlikely to fix
+  - PluginA/PluginB see an old version of themselves. This is a quirk which we are unlikely to fix
   - Local dependencies (symfony/*) always show the local version over the Composer-bundled version, and show the correct new version as soon as they are done upgrading
 --RUN--
-update
+update plugin/* symfony/console symfony/filesystem symfony/process
 --EXPECT--
 !!PluginA:1.1.1.0["plugin/a","plugin/b","root/pkg","symfony/console","symfony/filesystem","symfony/polyfill-ctype","symfony/process","composer/ca-bundle","composer/composer","composer/semver","composer/spdx-licenses","composer/xdebug-handler","justinrainbow/json-schema","psr/log","react/promise","seld/jsonlint","seld/phar-utils","symfony/debug","symfony/finder","symfony/polyfill-mbstring"]
 !!PluginB:2.2.2.0
 !!Versions:console:99999.1.2.0;process:12345.1.2.0;filesystem:2.8.2.0
 !!PluginB:2.2.2.0["plugin/a","plugin/b","root/pkg","symfony/console","symfony/filesystem","symfony/polyfill-ctype","symfony/process","composer/ca-bundle","composer/composer","composer/semver","composer/spdx-licenses","composer/xdebug-handler","justinrainbow/json-schema","psr/log","react/promise","seld/jsonlint","seld/phar-utils","symfony/debug","symfony/finder","symfony/polyfill-mbstring"]
 !!PluginA:1.1.1.0
-!!Versions:console:99999.1.2.0;process:12345.1.2.0;filesystem:2.8.2.0%(\n> Hooks::preUpdate)?%
+!!Versions:console:99999.1.2.0;process:12345.1.2.0;filesystem:2.8.2.0
+> Hooks::preUpdate
 !!PreUpdate:["plugin/a","plugin/b","root/pkg","symfony/console","symfony/filesystem","symfony/polyfill-ctype","symfony/process","composer/ca-bundle","composer/composer","composer/semver","composer/spdx-licenses","composer/xdebug-handler","justinrainbow/json-schema","psr/log","react/promise","seld/jsonlint","seld/phar-utils","symfony/debug","symfony/finder","symfony/polyfill-mbstring"]
-!!Versions:console:99999.1.2.0;process:12345.1.2.0;filesystem:2.8.2.0%(\n> Hooks::preUpdate)?%
+!!Versions:console:99999.1.2.0;process:12345.1.2.0;filesystem:2.8.2.0
 Loading composer repositories with package information
 Updating dependencies
 Lock file operations: 0 installs, 5 updates, 0 removals
@@ -26,16 +27,19 @@ Lock file operations: 0 installs, 5 updates, 0 removals
 Writing lock file
 Installing dependencies from lock file (including require-dev)
 Package operations: 0 installs, 5 updates, 0 removals
+  - Downloading symfony/filesystem (%v?[2-8]\.\d+\.\d+%)
   - Upgrading symfony/console (99999.1.2 => 99999.1.3): Mirroring from symfony-console
   - Upgrading plugin/a (1.1.1 => 1.1.2): Mirroring from plugin-a
-!!PluginA:1.1.1.0["plugin/a","plugin/b","root/pkg","symfony/console","symfony/filesystem","symfony/polyfill-ctype","symfony/process","composer/ca-bundle","composer/composer","composer/semver","composer/spdx-licenses","composer/xdebug-handler","justinrainbow/json-schema","psr/log","react/promise","seld/jsonlint","seld/phar-utils","symfony/debug","symfony/finder","symfony/polyfill-mbstring"]
+!!PluginAInit["plugin/a","plugin/b","root/pkg","symfony/console","symfony/filesystem","symfony/polyfill-ctype","symfony/process","composer/ca-bundle","composer/composer","composer/semver","composer/spdx-licenses","composer/xdebug-handler","justinrainbow/json-schema","psr/log","react/promise","seld/jsonlint","seld/phar-utils","symfony/debug","symfony/finder","symfony/polyfill-mbstring"]
+!!PluginA:1.1.1.0
 !!PluginB:2.2.2.0
 !!Versions:console:99999.1.3.0;process:12345.1.2.0;filesystem:%[2-8]\.\d+\.\d+.0%
   - Upgrading plugin/b (2.2.2 => 2.2.3): Mirroring from plugin-b
-!!PluginB:2.2.2.0["plugin/a","plugin/b","root/pkg","symfony/console","symfony/filesystem","symfony/polyfill-ctype","symfony/process","composer/ca-bundle","composer/composer","composer/semver","composer/spdx-licenses","composer/xdebug-handler","justinrainbow/json-schema","psr/log","react/promise","seld/jsonlint","seld/phar-utils","symfony/debug","symfony/finder","symfony/polyfill-mbstring"]
+!!PluginBInit["plugin/a","plugin/b","root/pkg","symfony/console","symfony/filesystem","symfony/polyfill-ctype","symfony/process","composer/ca-bundle","composer/composer","composer/semver","composer/spdx-licenses","composer/xdebug-handler","justinrainbow/json-schema","psr/log","react/promise","seld/jsonlint","seld/phar-utils","symfony/debug","symfony/finder","symfony/polyfill-mbstring"]
 !!PluginA:1.1.2.0
+!!PluginB:2.2.2.0
 !!Versions:console:99999.1.3.0;process:12345.1.2.0;filesystem:%[2-8]\.\d+\.\d+.0%
-  - Upgrading symfony/filesystem (v2.8.2 => %v?[2-8]\.\d+\.\d+%)
+  - Upgrading symfony/filesystem (v2.8.2 => %v?[2-8]\.\d+\.\d+%): Extracting archive
   - Upgrading symfony/process (12345.1.2 => 12345.1.3): Mirroring from symfony-process
 Generating autoload files
 2 packages you are using are looking for funding.

tests/Composer/Test/Fixtures/functional/installed-versions2/Hooks.php

@@ -8,16 +8,15 @@ class Hooks
 {
     public static function preUpdate(Event $event)
     {
-        flush();
+        fwrite(STDERR, '!!PreUpdate:'.JsonFile::encode(InstalledVersions::getInstalledPackages(), 320)."\n");
-        echo '!!PreUpdate:'.JsonFile::encode(InstalledVersions::getInstalledPackages(), 320)."\n";
+        fwrite(STDERR, '!!Versions:console:'.InstalledVersions::getVersion('symfony/console').';process:'.InstalledVersions::getVersion('symfony/process').';filesystem:'.InstalledVersions::getVersion('symfony/filesystem')."\n");
-        echo '!!Versions:console:'.InstalledVersions::getVersion('symfony/console').';process:'.InstalledVersions::getVersion('symfony/process').';filesystem:'.InstalledVersions::getVersion('symfony/filesystem')."\n";
     }
 
     public static function postUpdate(Event $event)
     {
-        echo '!!PostUpdate:'.JsonFile::encode(InstalledVersions::getInstalledPackages(), 320)."\n";
+        fwrite(STDERR, '!!PostUpdate:'.JsonFile::encode(InstalledVersions::getInstalledPackages(), 320)."\n");
-        echo '!!Versions:console:'.InstalledVersions::getVersion('symfony/console').';process:'.InstalledVersions::getVersion('symfony/process').';filesystem:'.InstalledVersions::getVersion('symfony/filesystem')."\n";
+        fwrite(STDERR, '!!Versions:console:'.InstalledVersions::getVersion('symfony/console').';process:'.InstalledVersions::getVersion('symfony/process').';filesystem:'.InstalledVersions::getVersion('symfony/filesystem')."\n");
-        echo '!!PluginA:'.InstalledVersions::getVersion('plugin/a')."\n";
+        fwrite(STDERR, '!!PluginA:'.InstalledVersions::getVersion('plugin/a')."\n");
-        echo '!!PluginB:'.InstalledVersions::getVersion('plugin/b')."\n";
+        fwrite(STDERR, '!!PluginB:'.InstalledVersions::getVersion('plugin/b')."\n");
     }
 }

tests/Composer/Test/Fixtures/functional/installed-versions2/plugin-a/PluginA.php

@@ -10,7 +10,8 @@ class PluginA implements PluginInterface
 {
     public function activate(Composer $composer, IOInterface $io)
     {
-        echo '!!PluginA:'.InstalledVersions::getVersion('plugin/a').JsonFile::encode(InstalledVersions::getInstalledPackages(), 320)."\n";
+        echo '!!PluginAInit'.JsonFile::encode(InstalledVersions::getInstalledPackages(), 320)."\n";
+        echo '!!PluginA:'.(InstalledVersions::isInstalled('plugin/a') ? InstalledVersions::getVersion('plugin/a') : 'null')."\n";
         echo '!!PluginB:'.(InstalledVersions::isInstalled('plugin/b') ? InstalledVersions::getVersion('plugin/b') : 'null')."\n";
         echo '!!Versions:console:'.InstalledVersions::getVersion('symfony/console').';process:'.InstalledVersions::getVersion('symfony/process').';filesystem:'.InstalledVersions::getVersion('symfony/filesystem')."\n";
     }

tests/Composer/Test/Fixtures/functional/installed-versions2/plugin-b/PluginB.php

@@ -10,8 +10,9 @@ class PluginB implements PluginInterface
 {
     public function activate(Composer $composer, IOInterface $io)
     {
-        echo '!!PluginB:'.InstalledVersions::getVersion('plugin/b').JsonFile::encode(InstalledVersions::getInstalledPackages(), 320)."\n";
+        echo '!!PluginBInit'.JsonFile::encode(InstalledVersions::getInstalledPackages(), 320)."\n";
         echo '!!PluginA:'.(InstalledVersions::isInstalled('plugin/a') ? InstalledVersions::getVersion('plugin/a') : 'null')."\n";
+        echo '!!PluginB:'.(InstalledVersions::isInstalled('plugin/b') ? InstalledVersions::getVersion('plugin/b') : 'null')."\n";
         echo '!!Versions:console:'.InstalledVersions::getVersion('symfony/console').';process:'.InstalledVersions::getVersion('symfony/process').';filesystem:'.InstalledVersions::getVersion('symfony/filesystem')."\n";
     }