project.cpp

qtmake 文件的代码

        QChar sep = vals.at(1);
        QStringList func = vals.split(sep);
        if(func.count() < 3 || func.count() > 4) {
            qmake_error_msg(("~= operator only can handle s/// function ('" +
                s + "')").toLatin1());
            return false;
        }
        bool global = false, case_sense = true, quote = false;
        if(func.count() == 4) {
            global = func[3].indexOf('g') != -1;
            case_sense = func[3].indexOf('i') == -1;
            quote = func[3].indexOf('q') != -1;
        }
        QString from = func[1], to = func[2];
        if(quote)
            from = QRegExp::escape(from);
        QRegExp regexp(from, case_sense ? Qt::CaseSensitive : Qt::CaseInsensitive);
        for(QStringList::Iterator varit = varlist.begin(); varit != varlist.end();) {
            if((*varit).contains(regexp)) {
                (*varit) = (*varit).replace(regexp, to);
                if ((*varit).isEmpty())
                    varit = varlist.erase(varit);
                else
                    ++varit;
                if(!global)
                    break;
            } else
                ++varit;
        }
    } else {
        if(op == "=") {
            if(!varlist.isEmpty())
                warn_msg(WarnParser, "Operator=(%s) clears variables previously set: %s:%d",
                         var.toLatin1().constData(), parser.file.toLatin1().constData(), parser.line_no);
            varlist.clear();
        }
        for(QStringList::ConstIterator valit = vallist.begin();
            valit != vallist.end(); ++valit) {
            if((*valit).isEmpty())
                continue;
            if((op == "*=" && !varlist.contains((*valit))) ||
               op == "=" || op == "+=")
                varlist.append((*valit));
            else if(op == "-=")
                varlist.removeAll((*valit));
        }
    }
    if(var == "REQUIRES") // special case to get communicated to backends!
        doProjectCheckReqs(vallist, place);
    return true;
}

bool
QMakeProject::read(QTextStream &file, QMap<QString, QStringList> &place)
{
    bool ret = true;
    QString s, line;
    while(!file.atEnd()) {
        parser.line_no++;
        line = file.readLine().trimmed();
        int prelen = line.length();

        int hash_mark = line.indexOf("#");
        if(hash_mark != -1) //good bye comments
            line = line.left(hash_mark).trimmed();
        if(!line.isEmpty() && line.right(1) == "\\") {
            if(!line.startsWith("#")) {
                line.truncate(line.length() - 1);
                s += line + Option::field_sep;
            }
        } else if(!line.isEmpty() || (line.isEmpty() && !prelen)) {
            if(s.isEmpty() && line.isEmpty())
                continue;
            if(!line.isEmpty())
                s += line;
            if(!s.isEmpty()) {
                if(!(ret = parse(s, place))) {
                    s = "";
                    break;
                }
                s = "";
            }
        }
    }
    if (!s.isEmpty())
        ret = parse(s, place);
    return ret;
}

bool
QMakeProject::read(const QString &file, QMap<QString, QStringList> &place)
{
    parser_info pi = parser;
    reset();

    QString filename = Option::fixPathToLocalOS(file);
    doVariableReplace(filename, place);
    bool ret = false, using_stdin = false;
    QFile qfile;
    if(!strcmp(filename.toLatin1(), "-")) {
        qfile.setFileName("");
        ret = qfile.open(stdin, QIODevice::ReadOnly);
        using_stdin = true;
    } else if(QFileInfo(file).isDir()) {
        return false;
    } else {
        qfile.setFileName(filename);
        ret = qfile.open(QIODevice::ReadOnly);
    }
    if(ret) {
        parser_info pi = parser;
        parser.from_file = true;
        parser.file = filename;
        parser.line_no = 0;
        QTextStream t(&qfile);
        ret = read(t, place);
        if(!using_stdin)
            qfile.close();
    }
    if(scope_blocks.count() != 1) {
        qmake_error_msg("Unterminated conditional block at end of file");
        ret = false;
    }
    parser = pi;
    return ret;
}

bool
QMakeProject::read(const QString &project, uchar cmd)
{
    pfile = project;
    return read(cmd);
}

bool
QMakeProject::read(uchar cmd)
{
    if(cfile.isEmpty()) {
        // hack to get the Option stuff in there
        base_vars["QMAKE_EXT_OBJ"] = QStringList(Option::obj_ext);
        base_vars["QMAKE_EXT_CPP"] = Option::cpp_ext;
        base_vars["QMAKE_EXT_H"] = Option::h_ext;
        if(!Option::user_template_prefix.isEmpty())
            base_vars["TEMPLATE_PREFIX"] = QStringList(Option::user_template_prefix);

        if(cmd & ReadCache && Option::mkfile::do_cache) {        // parse the cache
            int cache_depth = -1;
            QString qmake_cache = Option::mkfile::cachefile;
            if(qmake_cache.isEmpty())  { //find it as it has not been specified
                QString dir = QDir::convertSeparators(Option::output_dir);
                while(!QFile::exists((qmake_cache = dir + QDir::separator() + ".qmake.cache"))) {
                    dir = dir.left(dir.lastIndexOf(QDir::separator()));
                    if(dir.isEmpty() || dir.indexOf(QDir::separator()) == -1) {
                        qmake_cache = "";
                        break;
                    }
                    if(cache_depth == -1)
                        cache_depth = 1;
                    else
                        cache_depth++;
                }
            } else {
                QString abs_cache = QFileInfo(Option::mkfile::cachefile).absoluteDir().path();
                if(Option::output_dir.startsWith(abs_cache))
                    cache_depth = Option::output_dir.mid(abs_cache.length()).count('/');
            }
            if(!qmake_cache.isEmpty()) {
                if(read(qmake_cache, cache)) {
                    Option::mkfile::cachefile_depth = cache_depth;
                    Option::mkfile::cachefile = qmake_cache;
                    if(Option::mkfile::qmakespec.isEmpty() && !cache["QMAKESPEC"].isEmpty())
                        Option::mkfile::qmakespec = cache["QMAKESPEC"].first();
                }
            }
        }
        if(cmd & ReadConf) {             // parse mkspec
            QStringList mkspec_roots = qmake_mkspec_paths();
            debug_msg(2, "Looking for mkspec %s in (%s)", Option::mkfile::qmakespec.toLatin1().constData(),
                      mkspec_roots.join("::").toLatin1().constData());
            if(Option::mkfile::qmakespec.isEmpty()) {
                for(QStringList::ConstIterator it = mkspec_roots.begin(); it != mkspec_roots.end(); ++it) {
                    QString mkspec = (*it) + QDir::separator() + "default";
                    QFileInfo default_info(mkspec);
                    if(default_info.exists() && default_info.isDir()) {
                        Option::mkfile::qmakespec = mkspec;
                        break;
                    }
                }
                if(Option::mkfile::qmakespec.isEmpty()) {
                    fprintf(stderr, "QMAKESPEC has not been set, so configuration cannot be deduced.\n");
                    return false;
                }
            }

            if(QDir::isRelativePath(Option::mkfile::qmakespec) &&
               !QFile::exists(Option::mkfile::qmakespec+"/qmake.conf")) {
                bool found_mkspec = false;
                for(QStringList::ConstIterator it = mkspec_roots.begin(); it != mkspec_roots.end(); ++it) {
                    QString mkspec = (*it) + QDir::separator() + Option::mkfile::qmakespec;
                    if(QFile::exists(mkspec)) {
                        found_mkspec = true;
                        Option::mkfile::qmakespec = mkspec;
                        break;
                    }
                }
                if(!found_mkspec) {
                    fprintf(stderr, "Could not find mkspecs for your QMAKESPEC after trying:\n\t%s\n",
                            mkspec_roots.join("\n\t").toLatin1().constData());
                    return false;
                }
            }

            // parse qmake configuration
            while(Option::mkfile::qmakespec.endsWith(QString(QChar(QDir::separator()))))
                Option::mkfile::qmakespec.truncate(Option::mkfile::qmakespec.length()-1);
            QString spec = Option::mkfile::qmakespec + QDir::separator() + "qmake.conf";
            if(!QFile::exists(spec) &&
               QFile::exists(Option::mkfile::qmakespec + QDir::separator() + "tmake.conf"))
                spec = Option::mkfile::qmakespec + QDir::separator() + "tmake.conf";
            debug_msg(1, "QMAKESPEC conf: reading %s", spec.toLatin1().constData());
            if(!read(spec, base_vars)) {
                fprintf(stderr, "Failure to read QMAKESPEC conf file %s.\n", spec.toLatin1().constData());
                return false;
            }
            if(Option::mkfile::do_cache && !Option::mkfile::cachefile.isEmpty()) {
                debug_msg(1, "QMAKECACHE file: reading %s", Option::mkfile::cachefile.toLatin1().constData());
                read(Option::mkfile::cachefile, base_vars);
            }
        }

        if(cmd & ReadFeatures) {
            debug_msg(1, "Processing default_pre: %s", vars["CONFIG"].join("::").toLatin1().constData());
            if(doProjectInclude("default_pre", IncludeFlagFeature, base_vars) == IncludeNoExist)
                doProjectInclude("default", IncludeFlagFeature, base_vars);
        }
    }

    vars = base_vars; // start with the base

    //get a default
    if(pfile != "-" && vars["TARGET"].isEmpty())
        vars["TARGET"].append(QFileInfo(pfile).baseName());

    //before commandline
    if(cmd & ReadCmdLine) {
        cfile = pfile;
        parser.file = "(internal)";
        parser.from_file = false;
        parser.line_no = 1; //really arg count now.. duh
        reset();
        for(QStringList::ConstIterator it = Option::before_user_vars.begin();
            it != Option::before_user_vars.end(); ++it) {
            if(!parse((*it), vars)) {
                fprintf(stderr, "Argument failed to parse: %s\n", (*it).toLatin1().constData());
                return false;
            }
            parser.line_no++;
        }
    }

    //commandline configs
    if(cmd & ReadConfigs && !Option::user_configs.isEmpty()) {
        parser.file = "(configs)";
        parser.from_file = false;
        parser.line_no = 1; //really arg count now.. duh
        parse("CONFIG += " + Option::user_configs.join(" "), vars);
    }

    if(cmd & ReadProFile) { // parse project file
        debug_msg(1, "Project file: reading %s", pfile.toLatin1().constData());
        if(pfile != "-" && !QFile::exists(pfile) && !pfile.endsWith(".pro"))
            pfile += ".pro";
        if(!read(pfile, vars))
            return false;
    }

    if(cmd & ReadPostFiles) { // parse post files
        const QStringList l = vars["QMAKE_POST_INCLUDE_FILES"];
        for(QStringList::ConstIterator it = l.begin(); it != l.end(); ++it) {
            if(read((*it), vars)) {
                if(vars["QMAKE_INTERNAL_INCLUDED_FILES"].indexOf((*it)) == -1)
                    vars["QMAKE_INTERNAL_INCLUDED_FILES"].append((*it));
            }
        }
    }

    if(cmd & ReadCmdLine) {
        parser.file = "(internal)";
        parser.from_file = false;
        parser.line_no = 1; //really arg count now.. duh
        reset();
        for(QStringList::ConstIterator it = Option::after_user_vars.begin();
            it != Option::after_user_vars.end(); ++it) {
            if(!parse((*it), vars)) {
                fprintf(stderr, "Argument failed to parse: %s\n", (*it).toLatin1().constData());
                return false;
            }
            parser.line_no++;
        }
    }

    //after configs (set in BUILDS)
    if(cmd & ReadConfigs && !Option::after_user_configs.isEmpty()) {
        parser.file = "(configs)";
        parser.from_file = false;
        parser.line_no = 1; //really arg count now.. duh
        parse("CONFIG += " + Option::after_user_configs.join(" "), vars);
    }

    if(pfile != "-" && vars["TARGET"].isEmpty())
        vars["TARGET"].append(QFileInfo(pfile).baseName());

    if(cmd & ReadConfigs && !Option::user_configs.isEmpty()) {
        parser.file = "(configs)";
        parser.from_file = false;
        parser.line_no = 1; //really arg count now.. duh
        parse("CONFIG += " + Option::user_configs.join(" "), base_vars);
    }

    if(cmd & ReadFeatures) {
        debug_msg(1, "Processing default_post: %s", vars["CONFIG"].join("::").toLatin1().constData());
        doProjectInclude("default_post", IncludeFlagFeature, vars);

        QHash<QString, bool> processed;
        const QStringList &configs = vars["CONFIG"];
        debug_msg(1, "Processing CONFIG features: %s", configs.join("::").toLatin1().constData());
        while(1) {
            bool finished = true;
            for(int i = configs.size()-1; i >= 0; --i) {
                if(!processed.contains(configs[i])) {
                    processed.insert(configs[i], true);
                    if(doProjectInclude(configs[i], IncludeFlagFeature, vars) == IncludeSuccess) {