Port "arc liberate" to Toolsets

Summary: Ref T13395. Depends on D20991. Make "arc liberate" run as a toolset command, not a classic command.

Test Plan: Ran "arc liberate"; created this diff.

Maniphest Tasks: T13395

Differential Revision: https://secure.phabricator.com/D20992

src/__phutil_library_map__.php

@@ -1205,7 +1205,7 @@ phutil_register_library_map(array(
     'ArcanistLanguageConstructParenthesesXHPASTLinterRuleTestCase' => 'ArcanistXHPASTLinterRuleTestCase',
     'ArcanistLesscLinter' => 'ArcanistExternalLinter',
     'ArcanistLesscLinterTestCase' => 'ArcanistExternalLinterTestCase',
-    'ArcanistLiberateWorkflow' => 'ArcanistWorkflow',
+    'ArcanistLiberateWorkflow' => 'ArcanistArcWorkflow',
     'ArcanistLintEngine' => 'Phobject',
     'ArcanistLintMessage' => 'Phobject',
     'ArcanistLintMessageTestCase' => 'PhutilTestCase',

src/toolset/workflow/ArcanistArcWorkflow.php

@@ -5,7 +5,7 @@ abstract class ArcanistArcWorkflow
 
   public function supportsToolset(ArcanistToolset $toolset) {
     $key = $toolset->getToolsetKey();
-    return ($key === 'arc');
+    return ($key === ArcanistArcToolset::TOOLSETKEY);
   }
 
 }

src/workflow/ArcanistLiberateWorkflow.php

@@ -1,141 +1,106 @@
 <?php
 
-/**
- * Create and update libphutil libraries.
- *
- * This workflow is unusual and involves re-executing 'arc liberate' as a
- * subprocess with `--remap` and `--verify`. This is because there is no way
- * to unload or reload a library, so every process is stuck with the library
- * definition it had when it first loaded. This is normally fine, but
- * problematic in this case because `arc liberate` modifies library definitions.
- */
-final class ArcanistLiberateWorkflow extends ArcanistWorkflow {
+final class ArcanistLiberateWorkflow
+  extends ArcanistArcWorkflow {
 
   public function getWorkflowName() {
     return 'liberate';
   }
 
-  public function getCommandSynopses() {
-    return phutil_console_format(<<<EOTEXT
-      **liberate** [__path__]
+  public function getWorkflowInformation() {
+    // TOOLSETS: Expand this help.
+
+    $help = pht(<<<EOTEXT
+Create or update an Arcanist library.
 EOTEXT
-      );
+);
+
+    return $this->newWorkflowInformation()
+      ->addExample(pht('**liberate**'))
+      ->addExample(pht('**liberate** [__path__]'))
+      ->setHelp($help);
   }
 
-  public function getCommandHelp() {
-    return phutil_console_format(<<<EOTEXT
-          Supports: libphutil
-          Create or update a libphutil library, generating required metadata
-          files like \__init__.php.
-EOTEXT
-      );
-  }
-
-  public function getArguments() {
+  public function getWorkflowArguments() {
     return array(
-      'all' => array(
-        'help' => pht(
-          'Drop the module cache before liberating. This will completely '.
-          'reanalyze the entire library. Thorough, but slow!'),
-      ),
-      'force-update' => array(
-        'help' => pht(
-          'Force the library map to be updated, even in the presence of '.
-          'lint errors.'),
-      ),
-      'library-name' => array(
-        'param' => 'name',
-        'help' =>
-          pht('Use a flag for library name rather than awaiting user input.'),
-      ),
-      'remap' => array(
-        'hide' => true,
-        'help' => pht(
-          'Internal. Run the remap step of liberation. You do not need to '.
-          'run this unless you are debugging the workflow.'),
-      ),
-      'verify' => array(
-        'hide' => true,
-        'help' => pht(
-          'Internal. Run the verify step of liberation. You do not need to '.
-          'run this unless you are debugging the workflow.'),
-      ),
-      'upgrade' => array(
-        'hide'  => true,
-        'help'  => pht('Experimental. Upgrade library to v2.'),
-      ),
-      '*' => 'argv',
+      $this->newWorkflowArgument('clean')
+        ->setHelp(
+          pht('Perform a clean rebuild, ignoring caches. Thorough, but slow.')),
+      $this->newWorkflowArgument('argv')
+        ->setWildcard(true),
     );
   }
 
-  public function run() {
+  public function runWorkflow() {
+    $log = $this->getLogEngine();
+
     $argv = $this->getArgument('argv');
     if (count($argv) > 1) {
       throw new ArcanistUsageException(
         pht(
-          "Provide only one path to '%s'. The path should be a directory ".
-          "where you want to create or update a libphutil library.",
-          'arc liberate'));
-    } else if (count($argv) == 0) {
-      $path = getcwd();
-    } else {
-      $path = reset($argv);
-    }
+          'Provide only one path to "arc liberate". The path should identify '.
+          'a directory where you want to create or update a library.'));
+    } else if (!$argv) {
+      $log->writeStatus(
+        pht('SCAN'),
+        pht('Searching for libraries in the current working directory...'));
 
-    $is_remap = $this->getArgument('remap');
-    $is_verify = $this->getArgument('verify');
-
-    $path = Filesystem::resolvePath($path);
-
-    if (Filesystem::pathExists($path) && is_dir($path)) {
-      $init = id(new FileFinder($path))
+      $init_files = id(new FileFinder(getcwd()))
         ->withPath('*/__phutil_library_init__.php')
         ->find();
-    } else {
-      $init = null;
-    }
 
-    if ($init) {
-      if (count($init) > 1) {
+      if (!$init_files) {
         throw new ArcanistUsageException(
           pht(
-            'Specified directory contains more than one libphutil library. '.
-            'Use a more specific path.'));
+            'Unable to find any libraries under the current working '.
+            'directory. To create a library, provide a path.'));
+      }
+
+      $paths = array();
+      foreach ($init_files as $init) {
+        $paths[] = Filesystem::resolvePath(dirname($init));
       }
-      $path = Filesystem::resolvePath(dirname(reset($init)), $path);
     } else {
-      $found = false;
-      foreach (Filesystem::walkToRoot($path) as $dir) {
-        if (Filesystem::pathExists($dir.'/__phutil_library_init__.php')) {
-          $path = $dir;
-          $found = true;
-          break;
-        }
-      }
-      if (!$found) {
-        echo pht("No library currently exists at that path...\n");
-        $this->liberateCreateDirectory($path);
-        $this->liberateCreateLibrary($path);
-        return;
-      }
+      $paths = array(
+        Filesystem::resolvePath(head($argv)),
+      );
+    }
+
+    foreach ($paths as $path) {
+      $log->writeStatus(
+        pht('WORK'),
+        pht(
+          'Updating library: %s',
+          Filesystem::readablePath($path).DIRECTORY_SEPARATOR));
+      $this->liberatePath($path);
+    }
+
+    $log->writeSuccess(
+      pht('DONE'),
+      pht('Updated %s librarie(s).', phutil_count($paths)));
+
+    return 0;
+  }
+
+  private function liberatePath($path) {
+    if (!Filesystem::pathExists($path.'/__phutil_library_init__.php')) {
+      echo tsprintf(
+        "%s\n",
+        pht(
+          'No library currently exists at the path "%s"...',
+          $path));
+      $this->liberateCreateDirectory($path);
+      $this->liberateCreateLibrary($path);
+      return;
     }
 
     $version = $this->getLibraryFormatVersion($path);
     switch ($version) {
       case 1:
-        if ($this->getArgument('upgrade')) {
-          return $this->upgradeLibrary($path);
-        }
         throw new ArcanistUsageException(
           pht(
-            "This library is using libphutil v1, which is no ".
-            "longer supported. Run '%s' to upgrade to v2.",
-            'arc liberate --upgrade'));
+            'This very old library is no longer supported.'));
       case 2:
-        if ($this->getArgument('upgrade')) {
-          throw new ArcanistUsageException(
-            pht("Can't upgrade a v2 library!"));
-        }
         return $this->liberateVersion2($path);
       default:
         throw new ArcanistUsageException(
@@ -166,32 +131,17 @@ EOTEXT
     $bin = $this->getScriptPath('support/lib/rebuild-map.php');
 
     $argv = array();
-    if ($this->getArgument('all')) {
+    if ($this->getArgument('clean')) {
       $argv[] = '--drop-cache';
     }
 
     return phutil_passthru(
-      'php -f %s -- %Ls %s',
+      'php -f %R -- %Ls %R',
       $bin,
       $argv,
       $path);
   }
 
-  private function upgradeLibrary($path) {
-    $inits = id(new FileFinder($path))
-      ->withPath('*/__init__.php')
-      ->withType('f')
-      ->find();
-
-    echo pht('Removing %s files...', '__init__.php')."\n";
-    foreach ($inits as $init) {
-      Filesystem::remove($path.'/'.$init);
-    }
-
-    echo pht('Upgrading library to v2...')."\n";
-    $this->liberateVersion2($path);
-  }
-
   private function liberateCreateDirectory($path) {
     if (Filesystem::pathExists($path)) {
       if (!is_dir($path)) {
@@ -204,10 +154,10 @@ EOTEXT
 
     echo pht("The directory '%s' does not exist.", $path);
     if (!phutil_console_confirm(pht('Do you want to create it?'))) {
-      throw new ArcanistUsageException(pht('Canceled.'));
+      throw new ArcanistUsageException(pht('Cancelled.'));
     }
 
-    execx('mkdir -p %s', $path);
+    execx('mkdir -p %R', $path);
   }
 
   private function liberateCreateLibrary($path) {
@@ -219,14 +169,10 @@ EOTEXT
     echo pht("Creating new libphutil library in '%s'.", $path)."\n";
 
     do {
-      $name = $this->getArgument('library-name');
-      if ($name === null) {
-        echo pht('Choose a name for the new library.')."\n";
-        $name = phutil_console_prompt(
-          pht('What do you want to name this library?'));
-      } else {
-        echo pht('Using library name %s.', $name)."\n";
-      }
+      echo pht('Choose a name for the new library.')."\n";
+      $name = phutil_console_prompt(
+        pht('What do you want to name this library?'));
+
       if (preg_match('/^[a-z-]+$/', $name)) {
         break;
       } else {

src/workflow/ArcanistWorkflow.php

@@ -115,6 +115,86 @@ abstract class ArcanistWorkflow extends Phobject {
     return $this->configurationSourceList;
   }
 
+  public function newPhutilWorkflow() {
+    $arguments = $this->getWorkflowArguments();
+    assert_instances_of($arguments, 'ArcanistWorkflowArgument');
+
+    $specs = mpull($arguments, 'getPhutilSpecification');
+
+    $phutil_workflow = id(new ArcanistPhutilWorkflow())
+      ->setName($this->getWorkflowName())
+      ->setWorkflow($this)
+      ->setArguments($specs);
+
+    $information = $this->getWorkflowInformation();
+    if ($information) {
+
+      $examples = $information->getExamples();
+      if ($examples) {
+        $examples = implode("\n", $examples);
+        $phutil_workflow->setExamples($examples);
+      }
+
+      $help = $information->getHelp();
+      if (strlen($help)) {
+        // Unwrap linebreaks in the help text so we don't get weird formatting.
+        $help = preg_replace("/(?<=\S)\n(?=\S)/", ' ', $help);
+
+        $phutil_workflow->setHelp($help);
+      }
+
+    }
+
+    return $phutil_workflow;
+  }
+
+  final protected function newWorkflowArgument($key) {
+    return id(new ArcanistWorkflowArgument())
+      ->setKey($key);
+  }
+
+  final protected function newWorkflowInformation() {
+    return new ArcanistWorkflowInformation();
+  }
+
+  final public function executeWorkflow(PhutilArgumentParser $args) {
+    $runtime = $this->getRuntime();
+
+    $this->arguments = $args;
+    $caught = null;
+
+    $runtime->pushWorkflow($this);
+
+    try {
+      $err = $this->runWorkflow($args);
+    } catch (Exception $ex) {
+      $caught = $ex;
+    }
+
+    try {
+      $this->runWorkflowCleanup();
+    } catch (Exception $ex) {
+      phlog($ex);
+    }
+
+    $runtime->popWorkflow();
+
+    if ($caught) {
+      throw $caught;
+    }
+
+    return $err;
+  }
+
+  final protected function getLogEngine() {
+    return $this->getRuntime()->getLogEngine();
+  }
+
+  protected function runWorkflowCleanup() {
+    // TOOLSETS: Do we need this?
+    return;
+  }
+
   public function __construct() {}
 
   public function run() {
@@ -662,7 +742,12 @@ abstract class ArcanistWorkflow extends Phobject {
   }
 
   final public function getArgument($key, $default = null) {
-    return idx($this->arguments, $key, $default);
+    // TOOLSETS: Remove this legacy code.
+    if (is_array($this->arguments)) {
+      return idx($this->arguments, $key, $default);
+    }
+
+    return $this->arguments->getArg($key);
   }
 
   final public function getPassedArguments() {