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Fix "empty diff" error in arcanist

Summary: Ref T2296. This error is unreachable right now -- when I fixed all the "\r\n" stuff, we always end up with a nonempty first line for an empty input. Do this test earlier and more explicitly. This results in a less useful error: "expected (some junk) on line 1" instead of "can't parse an empty diff".

Test Plan: Tried to parse an empty diff, got a "you can't parse an empty diff" error.

Reviewers: btrahan, vrana, codeblock

Reviewed By: codeblock

CC: aran

Maniphest Tasks: T2296

Differential Revision: https://secure.phabricator.com/D4370
This commit is contained in:
epriestley 2013-01-09 08:15:53 -08:00
parent a5ddd7ebc0
commit ea1585d7fa

View file

@ -188,12 +188,12 @@ final class ArcanistDiffParser {
}
public function parseDiff($diff) {
$this->didStartParse($diff);
if ($this->getLine() === null) {
$this->didFailParse("Can't parse an empty diff!");
if (!strlen(trim($diff))) {
throw new Exception("Can't parse an empty diff!");
}
$this->didStartParse($diff);
do {
$patterns = array(
// This is a normal SVN text change, probably from "svn diff".