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   1  <?php
   2  
   3  final class ReleephCommitFinder {
   4  
   5    private $releephProject;
   6    private $user;
   7    private $objectPHID;
   8  
   9    public function setUser(PhabricatorUser $user) {
  10      $this->user = $user;
  11      return $this;
  12    }
  13    public function getUser() {
  14      return $this->user;
  15    }
  16  
  17    public function setReleephProject(ReleephProject $rp) {
  18      $this->releephProject = $rp;
  19      return $this;
  20    }
  21  
  22    public function getRequestedObjectPHID() {
  23      return $this->objectPHID;
  24    }
  25  
  26    public function fromPartial($partial_string) {
  27      $this->objectPHID = null;
  28  
  29      // Look for diffs
  30      $matches = array();
  31      if (preg_match('/^D([1-9]\d*)$/', $partial_string, $matches)) {
  32        $diff_id = $matches[1];
  33        // TOOD: (T603) This is all slated for annihilation.
  34        $diff_rev = id(new DifferentialRevision())->load($diff_id);
  35        if (!$diff_rev) {
  36          throw new ReleephCommitFinderException(
  37            "{$partial_string} does not refer to an existing diff.");
  38        }
  39        $commit_phids = $diff_rev->loadCommitPHIDs();
  40  
  41        if (!$commit_phids) {
  42          throw new ReleephCommitFinderException(
  43            "{$partial_string} has no commits associated with it yet.");
  44        }
  45  
  46        $this->objectPHID = $diff_rev->getPHID();
  47  
  48        $commits = id(new PhabricatorRepositoryCommit())->loadAllWhere(
  49          'phid IN (%Ls) ORDER BY epoch ASC',
  50          $commit_phids);
  51        return head($commits);
  52      }
  53  
  54      // Look for a raw commit number, or r<callsign><commit-number>.
  55      $repository = $this->releephProject->getRepository();
  56      $dr_data = null;
  57      $matches = array();
  58      if (preg_match('/^r(?P<callsign>[A-Z]+)(?P<commit>\w+)$/',
  59        $partial_string, $matches)) {
  60        $callsign = $matches['callsign'];
  61        if ($callsign != $repository->getCallsign()) {
  62          throw new ReleephCommitFinderException(sprintf(
  63            '%s is in a different repository to this Releeph project (%s).',
  64            $partial_string,
  65            $repository->getCallsign()));
  66        } else {
  67          $dr_data = $matches;
  68        }
  69      } else {
  70        $dr_data = array(
  71          'callsign' => $repository->getCallsign(),
  72          'commit' => $partial_string,
  73        );
  74      }
  75  
  76      try {
  77        $dr_data['user'] = $this->getUser();
  78        $dr = DiffusionRequest::newFromDictionary($dr_data);
  79      } catch (Exception $ex) {
  80        $message = "No commit matches {$partial_string}: ".$ex->getMessage();
  81        throw new ReleephCommitFinderException($message);
  82      }
  83  
  84      $phabricator_repository_commit = $dr->loadCommit();
  85  
  86      if (!$phabricator_repository_commit) {
  87        throw new ReleephCommitFinderException(
  88          "The commit {$partial_string} doesn't exist in this repository.");
  89      }
  90  
  91      // When requesting a single commit, if it has an associated review we
  92      // imply the review was requested instead. This is always correct for now
  93      // and consistent with the older behavior, although it might not be the
  94      // right rule in the future.
  95      $phids = PhabricatorEdgeQuery::loadDestinationPHIDs(
  96        $phabricator_repository_commit->getPHID(),
  97        PhabricatorEdgeConfig::TYPE_COMMIT_HAS_DREV);
  98      if ($phids) {
  99        $this->objectPHID = head($phids);
 100      }
 101  
 102      return $phabricator_repository_commit;
 103    }
 104  
 105  }