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Don't choke on blame of files with whitespace-only trailing lines

Summary:
Fixes T4349. Two issues:

  - As discussed in T4349, we would trim the entire output and then require spaces when matching. This choked incorrectly if the last line of a file contained only whitespace. Use `phutil_split_lines()` instead, and regexp things more reasonably.
  - We were capturing the line text, not the commit, as "revision". This isn't actually used elsewhere, but was obviously wrong. Make this consistent with Git/SVN.

Test Plan: Rigged a call up and saw reasonable output after the patch, on a working copy which threw before the patch.

Reviewers: durham, btrahan

Reviewed By: durham

CC: aran

Maniphest Tasks: T4349

Differential Revision: https://secure.phabricator.com/D8078
This commit is contained in:
epriestley 2014-01-27 11:03:08 -08:00
parent b1d3948d77
commit 1daa719ace

View file

@ -323,14 +323,16 @@ final class ArcanistMercurialAPI extends ArcanistRepositoryAPI {
$this->getBaseCommit(),
$path);
$lines = phutil_split_lines($stdout, $retain_line_endings = true);
$blame = array();
foreach (explode("\n", trim($stdout)) as $line) {
foreach ($lines as $line) {
if (!strlen($line)) {
continue;
}
$matches = null;
$ok = preg_match('/^\s*([^:]+?) [a-f0-9]{12}: (.*)$/', $line, $matches);
$ok = preg_match('/^\s*([^:]+?) ([a-f0-9]{12}):/', $line, $matches);
if (!$ok) {
throw new Exception("Unable to parse Mercurial blame line: {$line}");