Example #1
0
bool Dependency::test(const Version& v) const
{
    int a = v.compare(this->min);
    int b = v.compare(this->max);

    bool low;
    if (minIncluded)
        low = a >= 0;
    else
        low = a > 0;

    bool high;
    if (maxIncluded)
        high = b <= 0;
    else
        high = b < 0;

    return low && high;
}
QString InstalledPackages::findPath_npackdcl(const Dependency& dep)
{
    QString ret;

    QString err;
    WindowsRegistry packagesWR;
    LONG e;
    err = packagesWR.open(HKEY_LOCAL_MACHINE,
            "SOFTWARE\\Npackd\\Npackd\\Packages", false, KEY_READ, &e);

    if (e == ERROR_FILE_NOT_FOUND || e == ERROR_PATH_NOT_FOUND) {
        err = "";
    } else if (err.isEmpty()) {
        Version found = Version::EMPTY;

        QStringList entries = packagesWR.list(&err);
        for (int i = 0; i < entries.count(); ++i) {
            QString name = entries.at(i);
            int pos = name.lastIndexOf("-");
            if (pos <= 0)
                continue;

            QString packageName = name.left(pos);
            if (packageName != dep.package)
                continue;

            QString versionName = name.right(name.length() - pos - 1);
            Version version;
            if (!version.setVersion(versionName))
                continue;

            if (!dep.test(version))
                continue;

            if (found != Version::EMPTY) {
                if (version.compare(found) < 0)
                    continue;
            }

            WindowsRegistry entryWR;
            err = entryWR.open(packagesWR, name, KEY_READ);
            if (!err.isEmpty())
                continue;

            QString p = entryWR.get("Path", &err).trimmed();
            if (!err.isEmpty())
                continue;

            QString dir;
            if (p.isEmpty())
                dir = "";
            else {
                QDir d(p);
                if (d.exists()) {
                    dir = p;
                } else {
                    dir = "";
                }
            }

            if (dir.isEmpty())
                continue;

            found = version;
            ret = dir;
        }
    }

    return ret;
}