ClangExecutableVersion clangExecutableVersion(const QString &executable)
{
const ClangExecutableVersion invalidVersion;
// Sanity checks
const QFileInfo fileInfo(executable);
const bool isExecutableFile = fileInfo.isFile() && fileInfo.isExecutable();
if (!isExecutableFile)
return invalidVersion;
// Get version output
Utils::Environment environment = Utils::Environment::systemEnvironment();
Utils::Environment::setupEnglishOutput(&environment);
Utils::SynchronousProcess runner;
runner.setEnvironment(environment.toStringList());
runner.setTimeoutS(10);
// We would prefer "-dumpversion", but that one returns some old version number.
const QStringList arguments(QLatin1String(("--version")));
const Utils::SynchronousProcessResponse response = runner.runBlocking(executable, arguments);
if (response.result != Utils::SynchronousProcessResponse::Finished)
return invalidVersion;
const QString output = response.stdOut();
// Parse version output
const QRegularExpression re(QLatin1String("clang version (\\d+)\\.(\\d+)\\.(\\d+)"));
const QRegularExpressionMatch reMatch = re.match(output);
if (re.captureCount() != 3)
return invalidVersion;
const QString majorString = reMatch.captured(1);
bool convertedSuccessfully = false;
const int major = majorString.toInt(&convertedSuccessfully);
if (!convertedSuccessfully)
return invalidVersion;
const QString minorString = reMatch.captured(2);
const int minor = minorString.toInt(&convertedSuccessfully);
if (!convertedSuccessfully)
return invalidVersion;
const QString patchString = reMatch.captured(3);
const int patch = patchString.toInt(&convertedSuccessfully);
if (!convertedSuccessfully)
return invalidVersion;
return ClangExecutableVersion(major, minor, patch);
}
