static function loadObject($filename)
{
$filename = realpath($filename);
if (isset(self::$cache[$filename])) {
return self::$cache[$filename];
}
$D = new DwarfLineInfo($filename);
$D->parse();
self::$cache[$filename] = $D;
return $D;
}
function generateCoverageResults()
{
// Find all executables, not just the test executables.
// We need to do this because the test executables may not
// include all of the possible code (linker decides to omit
// it from the image) so we see a skewed representation of
// the source lines.
$fp = popen("find {$this->repo_root} -type f -name watchman -o " . "-name \\*.a -o -name \\*.so -o -name \\*.dylib", "r");
while (true) {
$line = fgets($fp);
if ($line === false) {
break;
}
$obj_files[] = trim($line);
}
// Parse line information from the objects
foreach ($obj_files as $object) {
DwarfLineInfo::loadObject($object);
}
$CG = new CallgrindFile((string) $this->cg_file);
$CG->parse();
$source_files = array();
foreach ($CG->getSourceFiles() as $filename) {
if (Filesystem::isDescendant($filename, $this->repo_root) && !preg_match("/(thirdparty|tests)/", $filename)) {
$source_files[$filename] = $filename;
}
}
$cov = array();
foreach ($source_files as $filename) {
$relsrc = substr($filename, strlen($this->repo_root) + 1);
$cov[$relsrc] = CallgrindFile::mergeSourceLineData($filename, array($CG));
}
$res = new ArcanistUnitTestResult();
$res->setName('coverage');
$res->setUserData("Collected");
$res->setResult(ArcanistUnitTestResult::RESULT_PASS);
$res->setCoverage($cov);
// Stash it for review with our `arc cov` command
$wc = ArcanistWorkingCopyIdentity::newFromPath($this->repo_root);
$api = ArcanistRepositoryAPI::newAPIFromWorkingCopyIdentity($wc);
$api->writeScratchFile('wman-cov.json', json_encode($cov));
return array($res);
}
function collectSourceFileData($sourcefile)
{
$all_lines = array();
$this->getTouchedLines($sourcefile, $all_lines);
foreach ($this->getObjectFiles() as $objfile) {
DwarfLineInfo::loadObject($objfile);
}
$exe_lines = DwarfLineInfo::mergedSourceLines($sourcefile);
$max_line = max($exe_lines);
/* now build a string containing the coverage info.
* This is compatible with ArcanistUnitTestResult coverage data:
* N not executable
* C covered
* U uncovered
* X unreachable (we can't detect that here)
*/
$cov = str_repeat('N', $max_line);
for ($i = 1; $i <= $max_line; $i++) {
if (isset($all_lines[$i])) {
$cov[$i - 1] = 'C';
} else {
if (isset($exe_lines[$i])) {
$cov[$i - 1] = 'U';
}
}
}
return $cov;
}
