Add Mercurial repository configuration and local pull support

Summary: No actual parsing/import yet, but now you can define and pull Mercurial
repositories. I merged most of the local pull code so we can share it between
hg/git.

Test Plan:
  - Created a new Mercurial repository to track Codeigniter off Bitbucket
  - Edited / saved / etc.
  - Launched the mercurial pull daemon, it pulled the repo. Killed and
relaunched, it updated the repo.
  - Launched the git fetch deamon, it still works correctly.

Reviewers: Makinde, aran, jungejason, tuomaspelkonen

Reviewed By: Makinde

CC: aran, Makinde

Differential Revision: 793

src/__celerity_resource_map__.php

@@ -72,7 +72,7 @@ celerity_register_resource_map(array(
   ),
   'aphront-form-view-css' =>
   array(
-    'uri' => '/res/c79fd668/rsrc/css/aphront/form-view.css',
+    'uri' => '/res/16af59d8/rsrc/css/aphront/form-view.css',
     'type' => 'css',
     'requires' =>
     array(
@@ -1482,7 +1482,7 @@ celerity_register_resource_map(array(
       'uri' => '/res/pkg/ac869011/typeahead.pkg.js',
       'type' => 'js',
     ),
-    70966590 =>
+    'f6422902' =>
     array(
       'name' => 'core.pkg.css',
       'symbols' =>
@@ -1503,21 +1503,21 @@ celerity_register_resource_map(array(
         13 => 'phabricator-remarkup-css',
         14 => 'syntax-highlighting-css',
       ),
-      'uri' => '/res/pkg/70966590/core.pkg.css',
+      'uri' => '/res/pkg/f6422902/core.pkg.css',
       'type' => 'css',
     ),
   ),
   'reverse' =>
   array(
-    'aphront-crumbs-view-css' => '70966590',
-    'aphront-dialog-view-css' => '70966590',
-    'aphront-form-view-css' => '70966590',
-    'aphront-list-filter-view-css' => '70966590',
-    'aphront-panel-view-css' => '70966590',
-    'aphront-side-nav-view-css' => '70966590',
-    'aphront-table-view-css' => '70966590',
-    'aphront-tokenizer-control-css' => '70966590',
-    'aphront-typeahead-control-css' => '70966590',
+    'aphront-crumbs-view-css' => 'f6422902',
+    'aphront-dialog-view-css' => 'f6422902',
+    'aphront-form-view-css' => 'f6422902',
+    'aphront-list-filter-view-css' => 'f6422902',
+    'aphront-panel-view-css' => 'f6422902',
+    'aphront-side-nav-view-css' => 'f6422902',
+    'aphront-table-view-css' => 'f6422902',
+    'aphront-tokenizer-control-css' => 'f6422902',
+    'aphront-typeahead-control-css' => 'f6422902',
     'differential-changeset-view-css' => '7bf96a66',
     'differential-core-view-css' => '7bf96a66',
     'differential-revision-add-comment-css' => '7bf96a66',
@@ -1554,13 +1554,13 @@ celerity_register_resource_map(array(
     'javelin-util' => '3dbf4083',
     'javelin-vector' => '3dbf4083',
     'javelin-workflow' => '95c67dcd',
-    'phabricator-core-buttons-css' => '70966590',
-    'phabricator-core-css' => '70966590',
-    'phabricator-directory-css' => '70966590',
+    'phabricator-core-buttons-css' => 'f6422902',
+    'phabricator-core-css' => 'f6422902',
+    'phabricator-directory-css' => 'f6422902',
     'phabricator-keyboard-shortcut' => '95c67dcd',
     'phabricator-keyboard-shortcut-manager' => '95c67dcd',
-    'phabricator-remarkup-css' => '70966590',
-    'phabricator-standard-page-view' => '70966590',
-    'syntax-highlighting-css' => '70966590',
+    'phabricator-remarkup-css' => 'f6422902',
+    'phabricator-standard-page-view' => 'f6422902',
+    'syntax-highlighting-css' => 'f6422902',
   ),
 ));

src/__phutil_library_map__.php

@@ -575,6 +575,8 @@ phutil_register_library_map(array(
     'PhabricatorRepositoryGitHubNotification' => 'applications/repository/storage/githubnotification',
     'PhabricatorRepositoryGitHubPostReceiveController' => 'applications/repository/controller/github-post-receive',
     'PhabricatorRepositoryListController' => 'applications/repository/controller/list',
+    'PhabricatorRepositoryMercurialPullDaemon' => 'applications/repository/daemon/mercurialpull',
+    'PhabricatorRepositoryPullLocalDaemon' => 'applications/repository/daemon/pulllocal',
     'PhabricatorRepositoryShortcut' => 'applications/repository/storage/shortcut',
     'PhabricatorRepositorySvnCommitChangeParserWorker' => 'applications/repository/worker/commitchangeparser/svn',
     'PhabricatorRepositorySvnCommitDiscoveryDaemon' => 'applications/repository/daemon/commitdiscovery/svn',
@@ -1166,10 +1168,12 @@ phutil_register_library_map(array(
     'PhabricatorRepositoryGitCommitChangeParserWorker' => 'PhabricatorRepositoryCommitChangeParserWorker',
     'PhabricatorRepositoryGitCommitDiscoveryDaemon' => 'PhabricatorRepositoryCommitDiscoveryDaemon',
     'PhabricatorRepositoryGitCommitMessageParserWorker' => 'PhabricatorRepositoryCommitMessageParserWorker',
-    'PhabricatorRepositoryGitFetchDaemon' => 'PhabricatorRepositoryDaemon',
+    'PhabricatorRepositoryGitFetchDaemon' => 'PhabricatorRepositoryPullLocalDaemon',
     'PhabricatorRepositoryGitHubNotification' => 'PhabricatorRepositoryDAO',
     'PhabricatorRepositoryGitHubPostReceiveController' => 'PhabricatorRepositoryController',
     'PhabricatorRepositoryListController' => 'PhabricatorRepositoryController',
+    'PhabricatorRepositoryMercurialPullDaemon' => 'PhabricatorRepositoryPullLocalDaemon',
+    'PhabricatorRepositoryPullLocalDaemon' => 'PhabricatorRepositoryDaemon',
     'PhabricatorRepositoryShortcut' => 'PhabricatorRepositoryDAO',
     'PhabricatorRepositorySvnCommitChangeParserWorker' => 'PhabricatorRepositoryCommitChangeParserWorker',
     'PhabricatorRepositorySvnCommitDiscoveryDaemon' => 'PhabricatorRepositoryCommitDiscoveryDaemon',

src/applications/repository/constants/repositorytype/PhabricatorRepositoryType.php

@@ -20,13 +20,21 @@ final class PhabricatorRepositoryType {
 
   const REPOSITORY_TYPE_GIT         = 'git';
   const REPOSITORY_TYPE_SVN         = 'svn';
+  const REPOSITORY_TYPE_MERCURIAL   = 'hg';
 
-  public static function getNameForRepositoryType($type) {
+  public static function getAllRepositoryTypes() {
     static $map = array(
       self::REPOSITORY_TYPE_GIT       => 'Git',
       self::REPOSITORY_TYPE_SVN       => 'Subversion',
-    );
 
+      // TODO: Stabilize and remove caveat.
+      self::REPOSITORY_TYPE_MERCURIAL => 'Mercurial (LIMITED SUPPORT!)',
+    );
+    return $map;
+  }
+
+  public static function getNameForRepositoryType($type) {
+    $map = self::getAllRepositoryTypes();
     return idx($map, $type, 'Unknown');
   }
 

src/applications/repository/controller/create/PhabricatorRepositoryCreateController.php

@@ -30,10 +30,7 @@ class PhabricatorRepositoryCreateController
 
     $repository = new PhabricatorRepository();
 
-    $type_map = array(
-      'git' => 'Git',
-      'svn' => 'Subversion',
-    );
+    $type_map = PhabricatorRepositoryType::getAllRepositoryTypes();
     $errors = array();
 
     if ($request->isFormPost()) {

src/applications/repository/controller/create/__init__.php

@@ -7,6 +7,7 @@
 
 
 phutil_require_module('phabricator', 'aphront/response/redirect');
+phutil_require_module('phabricator', 'applications/repository/constants/repositorytype');
 phutil_require_module('phabricator', 'applications/repository/controller/base');
 phutil_require_module('phabricator', 'applications/repository/storage/repository');
 phutil_require_module('phabricator', 'view/form/base');

src/applications/repository/controller/edit/PhabricatorRepositoryEditController.php

@@ -204,6 +204,7 @@ class PhabricatorRepositoryEditController
 
     $is_git = false;
     $is_svn = false;
+    $is_mercurial = false;
 
     $e_ssh_key = null;
     $e_ssh_keyfile = null;
@@ -215,22 +216,29 @@ class PhabricatorRepositoryEditController
       case PhabricatorRepositoryType::REPOSITORY_TYPE_SVN:
         $is_svn = true;
         break;
+      case PhabricatorRepositoryType::REPOSITORY_TYPE_MERCURIAL:
+        $is_mercurial = true;
+        break;
       default:
         throw new Exception("Unsupported VCS!");
     }
 
+    $has_branches       = ($is_git || $is_mercurial);
+    $has_local          = ($is_git || $is_mercurial);
+    $has_http_support   = $is_svn;
+
     if ($request->isFormPost()) {
       $tracking = ($request->getStr('tracking') == 'enabled' ? true : false);
       $repository->setDetail('tracking-enabled', $tracking);
       $repository->setDetail('remote-uri', $request->getStr('uri'));
-      if ($is_git) {
+      if ($has_local) {
         $repository->setDetail('local-path', $request->getStr('path'));
       }
       $repository->setDetail(
         'pull-frequency',
         max(1, $request->getInt('frequency')));
 
-      if ($is_git) {
+      if ($has_branches) {
         $repository->setDetail(
           'default-branch',
           $request->getStr('default-branch'));
@@ -290,7 +298,7 @@ class PhabricatorRepositoryEditController
           $e_uri = null;
         }
 
-        if ($is_git) {
+        if ($has_local) {
           if (!$repository->getDetail('local-path')) {
             $e_path = 'Required';
             $errors[] = "Local path is required.";
@@ -319,6 +327,13 @@ class PhabricatorRepositoryEditController
       $error_view->appendChild(
         'Tracking changes were saved. You may need to restart the daemon '.
         'before changes will take effect.');
+    } else if (!$repository->getDetail('tracking-enabled')) {
+      $error_view = new AphrontErrorView();
+      $error_view->setSeverity(AphrontErrorView::SEVERITY_WARNING);
+      $error_view->setTitle('Repository Not Tracked');
+      $error_view->appendChild(
+        'Tracking is currently "Disabled" for this repository, so it will '.
+        'not be imported into Phabricator. You can enable it below.');
     }
 
     switch ($repository->getVersionControlSystem()) {
@@ -375,12 +390,28 @@ class PhabricatorRepositoryEditController
       '<h1>Remote URI</h1>'.
       '<div class="aphront-form-inset">');
 
+    $clone_command = null;
+    $fetch_command = null;
+    if ($is_git) {
+      $clone_command = 'git clone';
+      $fetch_command = 'git fetch';
+    } else if ($is_mercurial) {
+      $clone_command = 'hg clone';
+      $fetch_command = 'hg pull';
+    }
+
     $uri_label = 'Repository URI';
+    if ($has_local) {
       if ($is_git) {
         $instructions =
           'Enter the URI to clone this repository from. It should look like '.
-        '<tt>git@github.com:example/example.git</tt> or '.
+          '<tt>git@github.com:example/example.git</tt>, <tt> '.
           '<tt>ssh://user@host.com/git/example.git</tt>';
+      } else if ($is_mercurial) {
+        $instructions =
+          'Enter the URI to clone this repository from. It should look '.
+          'something like <tt>ssh://user@host.com/hg/example</tt>';
+      }
       $form->appendChild(
         '<p class="aphront-form-instructions">'.$instructions.'</p>');
     } else if ($is_svn) {
@@ -436,9 +467,7 @@ class PhabricatorRepositoryEditController
             '...specify a path on disk where the daemon should '.
             'look for a private key.'));
 
-    $supports_http = $is_svn;
-
-    if ($supports_http) {
+    if ($has_http_support) {
       $form
         ->appendChild(
           '<div class="aphront-form-instructions">'.
@@ -479,13 +508,13 @@ class PhabricatorRepositoryEditController
       '<h1>Importing Repository Information</h1>'.
       '<div class="aphront-form-inset">');
 
-    if ($is_git) {
+    if ($has_local) {
       $form->appendChild(
         '<p class="aphront-form-instructions">Select a path on local disk '.
-        'which the daemons should <tt>git clone</tt> the repository into. '.
-        'This must be readable and writable by the daemons, and readable by '.
-        'the webserver. The daemons will <tt>git fetch</tt> and keep this '.
-        'repository up to date.</p>');
+        'which the daemons should <tt>'.$clone_command.'</tt> the repository '.
+        'into. This must be readable and writable by the daemons, and '.
+        'readable by the webserver. The daemons will <tt>'.$fetch_command.
+        '</tt> and keep this repository up to date.</p>');
       $form->appendChild(
         id(new AphrontFormTextControl())
           ->setName('path')
@@ -523,7 +552,15 @@ class PhabricatorRepositoryEditController
       '<h1>Application Configuration</h1>'.
       '<div class="aphront-form-inset">');
 
-    if ($is_git) {
+    if ($has_branches) {
+
+      $default_branch_name = null;
+      if ($is_mercurial) {
+        $default_branch_name = 'default';
+      } else if ($is_git) {
+        $default_branch_name = 'origin/master';
+      }
+
       $form
         ->appendChild(
           id(new AphrontFormTextControl())
@@ -532,7 +569,7 @@ class PhabricatorRepositoryEditController
             ->setValue(
               $repository->getDetail(
                 'default-branch',
-                'origin/master'))
+                $default_branch_name))
             ->setCaption(
               'Default <strong>remote</strong> branch to show in Diffusion.'));
     }

src/applications/repository/daemon/gitfetch/PhabricatorRepositoryGitFetchDaemon.php

@@ -16,40 +16,19 @@
  * limitations under the License.
  */
 
-class PhabricatorRepositoryGitFetchDaemon
-  extends PhabricatorRepositoryDaemon {
+final class PhabricatorRepositoryGitFetchDaemon
+  extends PhabricatorRepositoryPullLocalDaemon {
 
-  public function run() {
-    $repository = $this->loadRepository();
-
-    if ($repository->getVersionControlSystem() != 'git') {
-      throw new Exception("Not a git repository!");
+  protected function getSupportedRepositoryType() {
+    return PhabricatorRepositoryType::REPOSITORY_TYPE_GIT;
   }
 
-    $tracked = $repository->getDetail('tracking-enabled');
-    if (!$tracked) {
-      throw new Exception("Tracking is not enabled for this repository.");
-    }
-
-    $local_path = $repository->getDetail('local-path');
-    $remote_uri = $repository->getDetail('remote-uri');
-
-    if (!$local_path) {
-      throw new Exception("No local path is available for this repository.");
-    }
-
-    while (true) {
-      if (!Filesystem::pathExists($local_path)) {
-        if (!$remote_uri) {
-          throw new Exception("No remote URI is available.");
-        }
-        execx('mkdir -p %s', dirname($local_path));
+  protected function executeCreate($remote_uri, $local_path) {
     execx('git clone %s %s', $remote_uri, rtrim($local_path, '/'));
-      } else {
+  }
+
+  protected function executeUpdate($remote_uri, $local_path) {
     execx('(cd %s && git fetch --all)', $local_path);
   }
-      $this->sleep($repository->getDetail('pull-frequency', 15));
-    }
-  }
 
 }

src/applications/repository/daemon/gitfetch/__init__.php

@@ -6,9 +6,9 @@
 
 
 
-phutil_require_module('phabricator', 'applications/repository/daemon/base');
+phutil_require_module('phabricator', 'applications/repository/constants/repositorytype');
+phutil_require_module('phabricator', 'applications/repository/daemon/pulllocal');
 
-phutil_require_module('phutil', 'filesystem');
 phutil_require_module('phutil', 'future/exec');
 
 

src/applications/repository/daemon/mercurialpull/PhabricatorRepositoryMercurialPullDaemon.php

@@ -0,0 +1,34 @@
+<?php
+
+/*
+ * Copyright 2011 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+final class PhabricatorRepositoryMercurialPullDaemon
+  extends PhabricatorRepositoryPullLocalDaemon {
+
+  protected function getSupportedRepositoryType() {
+    return PhabricatorRepositoryType::REPOSITORY_TYPE_MERCURIAL;
+  }
+
+  protected function executeCreate($remote_uri, $local_path) {
+    execx('hg clone %s %s', $remote_uri, rtrim($local_path, '/'));
+  }
+
+  protected function executeUpdate($remote_uri, $local_path) {
+    execx('(cd %s && hg pull -u)', $local_path);
+  }
+
+}

src/applications/repository/daemon/mercurialpull/__init__.php

@@ -0,0 +1,15 @@
+<?php
+/**
+ * This file is automatically generated. Lint this module to rebuild it.
+ * @generated
+ */
+
+
+
+phutil_require_module('phabricator', 'applications/repository/constants/repositorytype');
+phutil_require_module('phabricator', 'applications/repository/daemon/pulllocal');
+
+phutil_require_module('phutil', 'future/exec');
+
+
+phutil_require_source('PhabricatorRepositoryMercurialPullDaemon.php');

src/applications/repository/daemon/pulllocal/PhabricatorRepositoryPullLocalDaemon.php

@@ -0,0 +1,68 @@
+<?php
+
+/*
+ * Copyright 2011 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+abstract class PhabricatorRepositoryPullLocalDaemon
+  extends PhabricatorRepositoryDaemon {
+
+  abstract protected function getSupportedRepositoryType();
+  abstract protected function executeCreate($remote_uri, $local_path);
+  abstract protected function executeUpdate($remote_uri, $local_path);
+
+  final public function run() {
+    $repository = $this->loadRepository();
+    $expected_type = $this->getSupportedRepositoryType();
+
+    $repo_type = $repository->getVersionControlSystem();
+    if ($repo_type != $expected_type) {
+      $repo_type_name = PhabricatorRepositoryType::getNameForRepositoryType(
+        $repo_type);
+      $expected_type_name = PhabricatorRepositoryType::getNameForRepositoryType(
+        $expected_type);
+      $repo_name = $repository->getName().' ('.$repository->getCallsign().')';
+      throw new Exception(
+        "This daemon pulls '{$expected_type_name}' repositories, but the ".
+        "repository '{$repo_name}' is a '{$repo_type_name}' repository.");
+    }
+
+    $tracked = $repository->getDetail('tracking-enabled');
+    if (!$tracked) {
+      throw new Exception("Tracking is not enabled for this repository.");
+    }
+
+    $local_path = $repository->getDetail('local-path');
+    $remote_uri = $repository->getDetail('remote-uri');
+
+    if (!$local_path) {
+      throw new Exception("No local path is available for this repository.");
+    }
+
+    while (true) {
+      if (!Filesystem::pathExists($local_path)) {
+        if (!$remote_uri) {
+          throw new Exception("No remote URI is available.");
+        }
+        execx('mkdir -p %s', dirname($local_path));
+        $this->executeCreate($remote_uri, $local_path);
+      } else {
+        $this->executeUpdate($remote_uri, $local_path);
+      }
+      $this->sleep($repository->getDetail('pull-frequency', 15));
+    }
+  }
+
+}

src/applications/repository/daemon/pulllocal/__init__.php

@@ -0,0 +1,16 @@
+<?php
+/**
+ * This file is automatically generated. Lint this module to rebuild it.
+ * @generated
+ */
+
+
+
+phutil_require_module('phabricator', 'applications/repository/constants/repositorytype');
+phutil_require_module('phabricator', 'applications/repository/daemon/base');
+
+phutil_require_module('phutil', 'filesystem');
+phutil_require_module('phutil', 'future/exec');
+
+
+phutil_require_source('PhabricatorRepositoryPullLocalDaemon.php');