Index: scripts/repository/manage_repositories.php
===================================================================
--- scripts/repository/manage_repositories.php
+++ scripts/repository/manage_repositories.php
@@ -21,6 +21,7 @@
   new PhabricatorRepositoryManagementListWorkflow(),
   new PhabricatorRepositoryManagementDeleteWorkflow(),
   new PhabricatorRepositoryManagementMarkImportedWorkflow(),
+  new PhabricatorRepositoryManagementImportingWorkflow(),
   new PhutilHelpArgumentWorkflow(),
 );
 
Index: src/__phutil_library_map__.php
===================================================================
--- src/__phutil_library_map__.php
+++ src/__phutil_library_map__.php
@@ -1660,6 +1660,7 @@
     'PhabricatorRepositoryListController' => 'applications/repository/controller/PhabricatorRepositoryListController.php',
     'PhabricatorRepositoryManagementDeleteWorkflow' => 'applications/repository/management/PhabricatorRepositoryManagementDeleteWorkflow.php',
     'PhabricatorRepositoryManagementDiscoverWorkflow' => 'applications/repository/management/PhabricatorRepositoryManagementDiscoverWorkflow.php',
+    'PhabricatorRepositoryManagementImportingWorkflow' => 'applications/repository/management/PhabricatorRepositoryManagementImportingWorkflow.php',
     'PhabricatorRepositoryManagementListWorkflow' => 'applications/repository/management/PhabricatorRepositoryManagementListWorkflow.php',
     'PhabricatorRepositoryManagementMarkImportedWorkflow' => 'applications/repository/management/PhabricatorRepositoryManagementMarkImportedWorkflow.php',
     'PhabricatorRepositoryManagementPullWorkflow' => 'applications/repository/management/PhabricatorRepositoryManagementPullWorkflow.php',
@@ -4013,6 +4014,7 @@
     'PhabricatorRepositoryListController' => 'PhabricatorRepositoryController',
     'PhabricatorRepositoryManagementDeleteWorkflow' => 'PhabricatorRepositoryManagementWorkflow',
     'PhabricatorRepositoryManagementDiscoverWorkflow' => 'PhabricatorRepositoryManagementWorkflow',
+    'PhabricatorRepositoryManagementImportingWorkflow' => 'PhabricatorRepositoryManagementWorkflow',
     'PhabricatorRepositoryManagementListWorkflow' => 'PhabricatorRepositoryManagementWorkflow',
     'PhabricatorRepositoryManagementMarkImportedWorkflow' => 'PhabricatorRepositoryManagementWorkflow',
     'PhabricatorRepositoryManagementPullWorkflow' => 'PhabricatorRepositoryManagementWorkflow',
Index: src/applications/repository/management/PhabricatorRepositoryManagementImportingWorkflow.php
===================================================================
--- /dev/null
+++ src/applications/repository/management/PhabricatorRepositoryManagementImportingWorkflow.php
@@ -0,0 +1,86 @@
+<?php
+
+final class PhabricatorRepositoryManagementImportingWorkflow
+  extends PhabricatorRepositoryManagementWorkflow {
+
+  public function didConstruct() {
+    $this
+      ->setName('importing')
+      ->setExamples('**importing** __repository__ ...')
+      ->setSynopsis(
+        'Show commits in __repository__, named by callsign, which are still '.
+        'importing.')
+      ->setArguments(
+        array(
+          array(
+            'name'        => 'simple',
+            'help'        => 'Show simpler output.',
+          ),
+          array(
+            'name'        => 'repos',
+            'wildcard'    => true,
+          ),
+        ));
+  }
+
+  public function execute(PhutilArgumentParser $args) {
+    $repos = $this->loadRepositories($args, 'repos');
+
+    if (!$repos) {
+      throw new PhutilArgumentUsageException(
+        "Specify one or more repositories to find importing commits for, ".
+        "by callsign.");
+    }
+
+    $repos = mpull($repos, null, 'getID');
+
+    $table = new PhabricatorRepositoryCommit();
+    $conn_r = $table->establishConnection('r');
+
+    $rows = queryfx_all(
+      $conn_r,
+      'SELECT repositoryID, commitIdentifier, importStatus FROM %T
+        WHERE repositoryID IN (%Ld) AND importStatus != %d',
+      $table->getTableName(),
+      array_keys($repos),
+      PhabricatorRepositoryCommit::IMPORTED_ALL);
+
+    $console = PhutilConsole::getConsole();
+    if ($rows) {
+      foreach ($rows as $row) {
+        $repo = $repos[$row['repositoryID']];
+        $identifier = $row['commitIdentifier'];
+
+        $console->writeOut("%s", 'r'.$repo->getCallsign().$identifier);
+
+        if (!$args->getArg('simple')) {
+          $status = $row['importStatus'];
+          $need = array();
+          if (!($status & PhabricatorRepositoryCommit::IMPORTED_MESSAGE)) {
+            $need[] = 'Message';
+          }
+          if (!($status & PhabricatorRepositoryCommit::IMPORTED_CHANGE)) {
+            $need[] = 'Change';
+          }
+          if (!($status & PhabricatorRepositoryCommit::IMPORTED_OWNERS)) {
+            $need[] = 'Owners';
+          }
+          if (!($status & PhabricatorRepositoryCommit::IMPORTED_HERALD)) {
+            $need[] = 'Herald';
+          }
+
+          $console->writeOut(" %s", implode(', ', $need));
+        }
+
+        $console->writeOut("\n");
+      }
+    } else {
+      $console->writeErr(
+        "%s\n",
+        pht('No importing commits found.'));
+    }
+
+    return 0;
+  }
+
+}