Allow excluding paths from package

Summary: Resolves T2149.

Test Plan:
  $ bin/storage upgrade

# /owners/ - saw +
# /owners/package/1/ - saw +
# /owners/edit/1/ - added exclude paths, saw correct e-mail
# /rPabc123 - included paths are still highlighted and excluded not
# /owners/view/search/?path=/included/ - found
# /owners/view/search/?path=/excluded/ - not found
# owners.query - path: /included/
# owners.query - path: /excluded/
# new unit test

  PhabricatorOwnersPackage::loadAffectedPackages(
    $repository,
    array('/excluded/b.php'));

  PhabricatorOwnersPackage::loadAffectedPackages(
    $repository,
    array('/included/a.php'));

Reviewers: epriestley

Reviewed By: epriestley

CC: aran, Korvin

Maniphest Tasks: T2149

Differential Revision: https://secure.phabricator.com/D4102

src/applications/diffusion/controller/DiffusionLintController.php

@@ -193,11 +193,16 @@ final class DiffusionLintController extends DiffusionController {
       foreach ($paths as $path) {
         $branch = idx($branches, $repositories[$path->getRepositoryPHID()]);
         if ($branch) {
-          $or[] = qsprintf(
+          $condition = qsprintf(
             $conn,
             '(branchID IN (%Ld) AND path LIKE %>)',
             array_keys($branch),
             $path->getPath());
+          if ($path->getExcluded()) {
+            $where[] = 'NOT '.$condition;
+          } else {
+            $or[] = $condition;
+          }
         }
       }
       if (!$or) {