src/applications/diffusion/query/rawdiff/DiffusionGitRawDiffQuery.php

   1 <?php
   2
   3 final class DiffusionGitRawDiffQuery extends DiffusionRawDiffQuery {
   4
   5   protected function newQueryFuture() {
   6     $drequest = $this->getRequest();
   7     $repository = $drequest->getRepository();
   8
   9     $commit = $this->getAnchorCommit();
  10
  11     $options = array(
  12       '-M',
  13       '-C',
  14       '--no-ext-diff',
  15       '--no-color',
  16       '--src-prefix=a/',
  17       '--dst-prefix=b/',
  18       '-U'.(int)$this->getLinesOfContext(),
  19     );
  20
  21     $against = $this->getAgainstCommit();
  22     if ($against === null) {
  23       // Check if this is the root commit by seeing if it has parents, since
  24       // `git diff X^ X` does not work if "X" is the initial commit.
  25       list($parents) = $repository->execxLocalCommand(
  26         'log -n 1 %s %s --',
  27         '--format=%P',
  28         gitsprintf('%s', $commit));
  29
  30       if (strlen(trim($parents))) {
  31         $against = $commit.'^';
  32       } else {
  33         $against = ArcanistGitAPI::GIT_MAGIC_ROOT_COMMIT;
  34       }
  35     }
  36
  37     $path = $drequest->getPath();
  38     if (!strlen($path)) {
  39       $path = '.';
  40     }
  41
  42     return $repository->getLocalCommandFuture(
  43       'diff %Ls %s %s -- %s',
  44       $options,
  45       gitsprintf('%s', $against),
  46       gitsprintf('%s', $commit),
  47       $path);
  48   }
  49
  50 }