DiffusionSvnFileContentQuery.php
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	<?php

	final class DiffusionSvnFileContentQuery extends DiffusionFileContentQuery {

	public function getFileContentFuture() {
	$drequest = $this->getRequest();

	$repository = $drequest->getRepository();
	$path = $drequest->getPath();
	$commit = $drequest->getCommit();

	return $repository->getRemoteCommandFuture(
	'%C %s',
	$this->getNeedsBlame() ? 'blame --force' : 'cat',
	$repository->getSubversionPathURI($path, $commit));
	}

	protected function executeQueryFromFuture(Future $future) {
	try {
	list($corpus) = $future->resolvex();
	} catch (CommandException $ex) {
	$stderr = $ex->getStdErr();
	if (preg_match('/path not found$/', trim($stderr))) {
	// TODO: Improve user experience for this. One way to end up here
	// is to have the parser behind and look at a file which was recently
	// nuked; Diffusion will think it still exists and try to grab content
	// at HEAD.
	throw new Exception(
	pht(
	'Failed to retrieve file content from Subversion. The file may '.
	'have been recently deleted, or the Diffusion cache may be out of '.
	'date.'));
	} else {
	throw $ex;
	}
	}

	$file_content = new DiffusionFileContent();
	$file_content->setCorpus($corpus);

	return $file_content;
	}

	protected function tokenizeLine($line) {
	// sample line:
	// 347498 yliu function print();
	$m = array();
	preg_match('/^\s(\d+)\s+(\S+)(?: (.))?$/', $line, $m);
	$rev_id = $m[1];
	$author = $m[2];
	$text = idx($m, 3);

	return array($rev_id, $author, $text);
	}

	}