Make Maniphest task statuses user configurable

Summary: Fixes T1812. Moves the internal configuration into public space and documents it.

Test Plan:
  - Tried to set it to some invalid stuff.
  - Set it to various valid things.
  - Browsed around, changed statuses, filtered statuses, viewed statuses, merged duplictes, examined transaction record, created tasks.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T1812

Differential Revision: https://secure.phabricator.com/D8585

src/__phutil_library_map__.php

@@ -882,6 +882,7 @@ phutil_register_library_map(array(
     'ManiphestReplyHandler' => 'applications/maniphest/mail/ManiphestReplyHandler.php',
     'ManiphestReportController' => 'applications/maniphest/controller/ManiphestReportController.php',
     'ManiphestSearchIndexer' => 'applications/maniphest/search/ManiphestSearchIndexer.php',
+    'ManiphestStatusConfigOptionType' => 'applications/maniphest/config/ManiphestStatusConfigOptionType.php',
     'ManiphestSubpriorityController' => 'applications/maniphest/controller/ManiphestSubpriorityController.php',
     'ManiphestSubscribeController' => 'applications/maniphest/controller/ManiphestSubscribeController.php',
     'ManiphestTask' => 'applications/maniphest/storage/ManiphestTask.php',
@@ -1323,6 +1324,7 @@ phutil_register_library_map(array(
     'PhabricatorConfigIssueListController' => 'applications/config/controller/PhabricatorConfigIssueListController.php',
     'PhabricatorConfigIssueViewController' => 'applications/config/controller/PhabricatorConfigIssueViewController.php',
     'PhabricatorConfigJSON' => 'applications/config/json/PhabricatorConfigJSON.php',
+    'PhabricatorConfigJSONOptionType' => 'applications/config/custom/PhabricatorConfigJSONOptionType.php',
     'PhabricatorConfigListController' => 'applications/config/controller/PhabricatorConfigListController.php',
     'PhabricatorConfigLocalSource' => 'infrastructure/env/PhabricatorConfigLocalSource.php',
     'PhabricatorConfigManagementDeleteWorkflow' => 'applications/config/management/PhabricatorConfigManagementDeleteWorkflow.php',
@@ -3521,6 +3523,7 @@ phutil_register_library_map(array(
     'ManiphestReplyHandler' => 'PhabricatorMailReplyHandler',
     'ManiphestReportController' => 'ManiphestController',
     'ManiphestSearchIndexer' => 'PhabricatorSearchDocumentIndexer',
+    'ManiphestStatusConfigOptionType' => 'PhabricatorConfigJSONOptionType',
     'ManiphestSubpriorityController' => 'ManiphestController',
     'ManiphestSubscribeController' => 'ManiphestController',
     'ManiphestTask' =>
@@ -4032,6 +4035,7 @@ phutil_register_library_map(array(
     'PhabricatorConfigIgnoreController' => 'PhabricatorApplicationsController',
     'PhabricatorConfigIssueListController' => 'PhabricatorConfigController',
     'PhabricatorConfigIssueViewController' => 'PhabricatorConfigController',
+    'PhabricatorConfigJSONOptionType' => 'PhabricatorConfigOptionType',
     'PhabricatorConfigListController' => 'PhabricatorConfigController',
     'PhabricatorConfigLocalSource' => 'PhabricatorConfigProxySource',
     'PhabricatorConfigManagementDeleteWorkflow' => 'PhabricatorConfigManagementWorkflow',

src/applications/config/controller/PhabricatorConfigEditController.php

@@ -102,7 +102,6 @@ final class PhabricatorConfigEditController
     $error_view = null;
     if ($errors) {
       $error_view = id(new AphrontErrorView())
-        ->setTitle(pht('You broke everything!'))
         ->setErrors($errors);
     } else if ($option->getHidden()) {
       $msg = pht(

src/applications/config/custom/PhabricatorConfigJSONOptionType.php

@@ -0,0 +1,62 @@
+<?php
+
+abstract class PhabricatorConfigJSONOptionType
+  extends PhabricatorConfigOptionType {
+
+  public function readRequest(
+    PhabricatorConfigOption $option,
+    AphrontRequest $request) {
+
+    $e_value = null;
+    $errors = array();
+    $storage_value = $request->getStr('value');
+    $display_value = $request->getStr('value');
+
+    if (strlen($display_value)) {
+      $storage_value = phutil_json_decode($display_value);
+      if ($storage_value === null) {
+        $e_value = pht('Invalid');
+        $errors[] = pht(
+          'Configuration value should be specified in JSON. The provided '.
+          'value is not valid JSON.');
+      } else {
+        try {
+          $this->validateOption($option, $storage_value);
+        } catch (Exception $ex) {
+          $e_value = pht('Invalid');
+          $errors[] = $ex->getMessage();
+        }
+      }
+    } else {
+      $storage_value = null;
+    }
+
+    return array($e_value, $errors, $storage_value, $display_value);
+  }
+
+  public function getDisplayValue(
+    PhabricatorConfigOption $option,
+    PhabricatorConfigEntry $entry) {
+    $value = $entry->getValue();
+    if (!$value) {
+      return '';
+    }
+
+    $json = new PhutilJSON();
+    return $json->encodeFormatted($value);
+  }
+
+  public function renderControl(
+    PhabricatorConfigOption $option,
+    $display_value,
+    $e_value) {
+
+    return id(new AphrontFormTextAreaControl())
+      ->setHeight(AphrontFormTextAreaControl::HEIGHT_VERY_TALL)
+      ->setName('value')
+      ->setLabel(pht('Value'))
+      ->setValue($display_value)
+      ->setError($e_value);
+  }
+
+}

src/applications/maniphest/config/ManiphestStatusConfigOptionType.php

@@ -0,0 +1,10 @@
+<?php
+
+final class ManiphestStatusConfigOptionType
+  extends PhabricatorConfigJSONOptionType {
+
+  public function validateOption(PhabricatorConfigOption $option, $value) {
+    ManiphestTaskStatus::validateConfiguration($value);
+  }
+
+}

src/applications/maniphest/config/PhabricatorManiphestConfigOptions.php

@@ -46,6 +46,160 @@ final class PhabricatorManiphestConfigOptions
       ),
     );
 
+    $status_type = 'custom:ManiphestStatusConfigOptionType';
+    $status_defaults = array(
+      'open' => array(
+        'name' => pht('Open'),
+        'special' => ManiphestTaskStatus::SPECIAL_DEFAULT,
+      ),
+      'resolved' => array(
+        'name' => pht('Resolved'),
+        'name.full' => pht('Closed, Resolved'),
+        'closed' => true,
+        'special' => ManiphestTaskStatus::SPECIAL_CLOSED,
+        'prefixes' => array(
+          'closed',
+          'closes',
+          'close',
+          'fix',
+          'fixes',
+          'fixed',
+          'resolve',
+          'resolves',
+          'resolved',
+        ),
+        'suffixes' => array(
+          'as resolved',
+          'as fixed',
+        ),
+      ),
+      'wontfix' => array(
+        'name' => pht('Wontfix'),
+        'name.full' => pht('Closed, Wontfix'),
+        'closed' => true,
+        'prefixes' => array(
+          'wontfix',
+          'wontfixes',
+          'wontfixed',
+        ),
+        'suffixes' => array(
+          'as wontfix',
+        ),
+      ),
+      'invalid' => array(
+        'name' => pht('Invalid'),
+        'name.full' => pht('Closed, Invalid'),
+        'closed' => true,
+        'prefixes' => array(
+          'invalidate',
+          'invalidates',
+          'invalidated',
+        ),
+        'suffixes' => array(
+          'as invalid',
+        ),
+      ),
+      'duplicate' => array(
+        'name' => pht('Duplicate'),
+        'name.full' => pht('Closed, Duplicate'),
+        'transaction.icon' => 'delete',
+        'special' => ManiphestTaskStatus::SPECIAL_DUPLICATE,
+        'closed' => true,
+      ),
+      'spite' => array(
+        'name' => pht('Spite'),
+        'name.full' => pht('Closed, Spite'),
+        'name.action' => pht('Spited'),
+        'transaction.icon' => 'dislike',
+        'silly' => true,
+        'closed' => true,
+        'prefixes' => array(
+          'spite',
+          'spites',
+          'spited',
+        ),
+        'suffixes' => array(
+          'out of spite',
+          'as spite',
+        ),
+      ),
+    );
+
+    $status_description = $this->deformat(pht(<<<EOTEXT
+Allows you to edit, add, or remove the task statuses available in Maniphest,
+like "Open", "Resolved" and "Invalid". The configuration should contain a map
+of status constants to status specifications (see defaults below for examples).
+
+The constant for each status should be 1-12 characters long and  contain only
+lowercase letters and digits. Valid examples are "open", "closed", and
+"invalid". Users will not normally see these values.
+
+The keys you can provide in a specification are:
+
+  - `name` //Required string.// Name of the status, like "Invalid".
+  - `name.full` //Optional string.// Longer name, like "Closed, Invalid". This
+    appears on the task detail view in the header.
+  - `name.action` //Optional string.// Action name for email subjects, like
+    "Marked Invalid".
+  - `closed` //Optional bool.// Statuses are either "open" or "closed".
+    Specifying `true` here will mark the status as closed (like "Resolved" or
+    "Invalid"). By default, statuses are open.
+  - `special` //Optional string.// Mark this status as special. The special
+    statuses are:
+    - `default` This is the default status for newly created tasks. You must
+      designate one status as default, and it must be an open status.
+    - `closed` This is the default status for closed tasks (for example, tasks
+      closed via the "!close" action in email). You must designate one status
+      as the default closed status, and it must be a closed status.
+    - `duplicate` This is the status used when tasks are merged into one
+      another as duplicates. You must designate one status for duplicates,
+      and it must be a closed status.
+  - `transaction.icon` //Optional string.// Allows you to choose a different
+    icon to use for this status when showing status changes in the transaction
+    log.
+  - `transaction.color` //Optional string.// Allows you to choose a different
+    color to use for this status when showing status changes in the transaction
+    log.
+  - `silly` //Optional bool.// Marks this status as silly, and thus wholly
+    inappropriate for use by serious businesses.
+  - `prefixes` //Optional list<string>.// Allows you to specify a list of
+    text prefixes which will trigger a task transition into this status
+    when mentioned in a commit message. For example, providing "closes" here
+    will allow users to move tasks to this status by writing `Closes T123` in
+    commit messages.
+  - `suffixes` //Optional list<string>.// Allows you to specify a list of
+    text suffixes which will trigger a task transition into this status
+    when mentioned in a commit message, after a valid prefix. For example,
+    providing "as invalid" here will allow users to move tasks
+    to this status by writing `Closes T123 as invalid`, even if another status
+    is selected by the "Closes" prefix.
+
+Examining the default configuration and examples below will probably be helpful
+in understanding these options.
+
+EOTEXT
+));
+
+    $status_example = array(
+      'open' => array(
+        'name' => 'Open',
+        'special' => 'default',
+      ),
+      'closed' => array(
+        'name' => 'Closed',
+        'special' => 'closed',
+        'closed' => true,
+      ),
+      'duplicate' => array(
+        'name' => 'Duplicate',
+        'special' => 'duplicate',
+        'closed' => true,
+      ),
+    );
+
+    $json = new PhutilJSON();
+    $status_example = $json->encodeFormatted($status_example);
+
     // This is intentionally blank for now, until we can move more Maniphest
     // logic to custom fields.
     $default_fields = array();
@@ -92,6 +246,10 @@ final class PhabricatorManiphestConfigOptions
             "\n\n".
             'You can choose which priority is the default for newly created '.
             'tasks with `maniphest.default-priority`.')),
+      $this->newOption('maniphest.statuses', $status_type, $status_defaults)
+        ->setSummary(pht('Configure Maniphest task statuses.'))
+        ->setDescription($status_description)
+        ->addExample($status_example, pht('Minimal Valid Config')),
       $this->newOption('maniphest.default-priority', 'int', 90)
         ->setSummary(pht("Default task priority for create flows."))
         ->setDescription(

src/applications/maniphest/constants/ManiphestTaskStatus.php

@@ -17,83 +17,7 @@ final class ManiphestTaskStatus extends ManiphestConstants {
   const SPECIAL_DUPLICATE   = 'duplicate';
 
   private static function getStatusConfig() {
-    return array(
-      self::STATUS_OPEN => array(
-        'name' => pht('Open'),
-        'special' => self::SPECIAL_DEFAULT,
-      ),
-      self::STATUS_CLOSED_RESOLVED => array(
-        'name' => pht('Resolved'),
-        'name.full' => pht('Closed, Resolved'),
-        'closed' => true,
-        'special' => self::SPECIAL_CLOSED,
-        'prefixes' => array(
-          'closed',
-          'closes',
-          'close',
-          'fix',
-          'fixes',
-          'fixed',
-          'resolve',
-          'resolves',
-          'resolved',
-        ),
-        'suffixes' => array(
-          'as resolved',
-          'as fixed',
-        ),
-      ),
-      self::STATUS_CLOSED_WONTFIX => array(
-        'name' => pht('Wontfix'),
-        'name.full' => pht('Closed, Wontfix'),
-        'closed' => true,
-        'prefixes' => array(
-          'wontfix',
-          'wontfixes',
-          'wontfixed',
-        ),
-        'suffixes' => array(
-          'as wontfix',
-        ),
-      ),
-      self::STATUS_CLOSED_INVALID => array(
-        'name' => pht('Invalid'),
-        'name.full' => pht('Closed, Invalid'),
-        'closed' => true,
-        'prefixes' => array(
-          'invalidate',
-          'invalidates',
-          'invalidated',
-        ),
-        'suffixes' => array(
-          'as invalid',
-        ),
-      ),
-      self::STATUS_CLOSED_DUPLICATE => array(
-        'name' => pht('Duplicate'),
-        'name.full' => pht('Closed, Duplicate'),
-        'transaction.icon' => 'delete',
-        'special' => self::SPECIAL_DUPLICATE,
-        'closed' => true,
-      ),
-      self::STATUS_CLOSED_SPITE => array(
-        'name' => pht('Spite'),
-        'name.full' => pht('Closed, Spite'),
-        'name.action' => pht('Spited'),
-        'transaction.icon' => 'dislike',
-        'silly' => true,
-        'closed' => true,
-        'prefixes' => array(
-          'spite',
-          'spites',
-          'spited',
-        ),
-        'suffixes' => array(
-          'out of spite',
-          'as spite',
-        ),
-      ),
-    );
+    return PhabricatorEnv::getEnvConfig('maniphest.statuses');
   }
 
   private static function getEnabledStatusMap() {