makefiledeps.cpp

qtmake 文件的代码

        file->type = type;

    if(seek & SEEK_MOCS && !file->moc_checked)
        findMocs(file);
    if(seek & SEEK_DEPS && !file->dep_checked)
        findDeps(file);
}

bool QMakeSourceFileInfo::containsSourceFile(const QString &f, SourceFileType type)
{
    if(SourceFile *file = files->lookupFile(QMakeLocalFileName(f)))
        return (file->type == type || file->type == TYPE_UNKNOWN || type == TYPE_UNKNOWN);
    return false;
}

char *QMakeSourceFileInfo::getBuffer(int s) {
    if(!spare_buffer || spare_buffer_size < s)
        spare_buffer = (char *)realloc(spare_buffer, spare_buffer_size=s);
    return spare_buffer;
}

#ifdef Q_WS_WIN
#define S_ISDIR(x) (x & _S_IFDIR)
#endif

QMakeLocalFileName QMakeSourceFileInfo::fixPathForFile(const QMakeLocalFileName &f, bool)
{
    return f;
}

QMakeLocalFileName QMakeSourceFileInfo::findFileForDep(const QMakeLocalFileName &/*dep*/,
                                                       const QMakeLocalFileName &/*file*/)
{
    return QMakeLocalFileName();
}

QFileInfo QMakeSourceFileInfo::findFileInfo(const QMakeLocalFileName &dep)
{
    return QFileInfo(dep.real());
}

bool QMakeSourceFileInfo::findDeps(SourceFile *file)
{
    if(file->dep_checked || file->type == TYPE_UNKNOWN)
        return true;
    files_changed = true;
    file->dep_checked = true;

    struct stat fst;
    char *buffer = 0;
    int buffer_len = 0;
    {
        int fd;
#if defined(_MSC_VER) && _MSC_VER >= 1400
        if (_sopen_s(&fd, fixPathForFile(file->file, true).local().toLatin1().constData(),
            _O_RDONLY, _SH_DENYNO, _S_IREAD) != 0)
            fd = -1;
#else
        fd = open(fixPathForFile(file->file, true).local().toLatin1().constData(), O_RDONLY);
#endif
        if(fd == -1 || fstat(fd, &fst) || S_ISDIR(fst.st_mode))
            return false;
        buffer = getBuffer(fst.st_size);
        for(int have_read = 0;
            (have_read = QT_READ(fd, buffer + buffer_len, fst.st_size - buffer_len));
            buffer_len += have_read);
        QT_CLOSE(fd);
    }
    if(!buffer)
        return false;
    if(!file->deps)
        file->deps = new SourceDependChildren;

    int line_count = 1;

    for(int x = 0; x < buffer_len; ++x) {
        bool try_local = true;
        char *inc = 0;
        if(file->type == QMakeSourceFileInfo::TYPE_UI) {
            // skip whitespaces
            while(x < buffer_len && (*(buffer+x) == ' ' || *(buffer+x) == '\t'))
                ++x;
            if(*(buffer + x) == '<') {
                ++x;
                if(buffer_len >= x + 12 && !strncmp(buffer + x, "includehint", 11) &&
                   (*(buffer + x + 11) == ' ' || *(buffer + x + 11) == '>')) {
                    for(x += 11; *(buffer + x) != '>'; ++x);
                    int inc_len = 0;
                    for(x += 1 ; *(buffer + x + inc_len) != '<'; ++inc_len);
                    *(buffer + x + inc_len) = '\0';
                    inc = buffer + x;
                } else if(buffer_len >= x + 13 && !strncmp(buffer + x, "customwidget", 12) &&
                          (*(buffer + x + 12) == ' ' || *(buffer + x + 12) == '>')) {
                    for(x += 13; *(buffer + x) != '>'; ++x); //skip up to >
                    while(x < buffer_len) {
                        for(x++; *(buffer + x) != '<'; ++x); //skip up to <
                        x++;
                        if(buffer_len >= x + 7 && !strncmp(buffer+x, "header", 6) &&
                           (*(buffer + x + 6) == ' ' || *(buffer + x + 6) == '>')) {
                            for(x += 7; *(buffer + x) != '>'; ++x); //skip up to >
                            int inc_len = 0;
                            for(x += 1 ; *(buffer + x + inc_len) != '<'; ++inc_len);
                            *(buffer + x + inc_len) = '\0';
                            inc = buffer + x;
                            break;
                        } else if(buffer_len >= x + 14 && !strncmp(buffer+x, "/customwidget", 13) &&
                                  (*(buffer + x + 13) == ' ' || *(buffer + x + 13) == '>')) {
                            x += 14;
                            break;
                        }
                    }
                } else if(buffer_len >= x + 8 && !strncmp(buffer + x, "include", 7) &&
                          (*(buffer + x + 7) == ' ' || *(buffer + x + 7) == '>')) {
                    for(x += 8; *(buffer + x) != '>'; ++x) {
                        if(buffer_len >= x + 9 && *(buffer + x) == 'i' &&
                           !strncmp(buffer + x, "impldecl", 8)) {
                            for(x += 8; *(buffer + x) != '='; ++x);
                            if(*(buffer + x) != '=')
                                continue;
                            for(++x; *(buffer+x) == '\t' || *(buffer+x) == ' '; ++x);
                            char quote = 0;
                            if(*(buffer+x) == '\'' || *(buffer+x) == '"') {
                                quote = *(buffer + x);
                                ++x;
                            }
                            int val_len;
                            for(val_len = 0; true; ++val_len) {
                                if(quote) {
                                    if(*(buffer+x+val_len) == quote)
                                        break;
                                } else if(*(buffer + x + val_len) == '>' ||
                                          *(buffer + x + val_len) == ' ') {
                                    break;
                                }
                            }
//?                            char saved = *(buffer + x + val_len);
                            *(buffer + x + val_len) = '\0';
                            if(!strcmp(buffer+x, "in implementation")) {
                                //### do this
                            }
                        }
                    }
                    int inc_len = 0;
                    for(x += 1 ; *(buffer + x + inc_len) != '<'; ++inc_len);
                    *(buffer + x + inc_len) = '\0';
                    inc = buffer + x;
                }
            }
            //read past new line now..
            for(; x < buffer_len && !qmake_endOfLine(*(buffer + x)); ++x);
            ++line_count;
        } else if(file->type == QMakeSourceFileInfo::TYPE_QRC) {
        } else if(file->type == QMakeSourceFileInfo::TYPE_C) {
            for(int beginning=1; x < buffer_len; ++x) {
                while(x < buffer_len) {
                    if(*(buffer+x) != ' ' && *(buffer+x) != '\t')
                        break;
                    ++x;
                }
                if(*(buffer+x) == '/') {
                    ++x;
                    if(buffer_len >= x) {
                        if(*(buffer+x) == '/') { //c++ style comment
                            for(; x < buffer_len && !qmake_endOfLine(*(buffer + x)); ++x);
                        } else if(*(buffer+x) == '*') { //c style comment
                            while(x < buffer_len) {
                                ++x;
                                if(*(buffer+x) == '*') {
                                    if(x < buffer_len-1 && *(buffer + (x+1)) == '/') {
                                        x += 2;
                                        break;
                                    }
                                } else if(qmake_endOfLine(*(buffer+x))) {
                                    ++line_count;
                                }
                            }
                        }
                    }
                } else if(*(buffer+x) == '\'' || *(buffer+x) == '"') {
                    beginning = 0;
                    const char term = *(buffer+(x++));
                    while(x < buffer_len) {
                        if(*(buffer+x) == term)
                            break;
                        if(*(buffer+x) == '\\') {
                            x+=2;
                        } else {
                            if(qmake_endOfLine(*(buffer+x)))
                                ++line_count;
                            ++x;
                        }
                    }
                }
                if(qmake_endOfLine(*(buffer+x))) {
                    ++line_count;
                    beginning = 1;
                } else if(beginning && *(buffer+x) == '#') {
                    break;
                } else {
                    beginning = 0;
                }
            }
            if(x >= buffer_len)
                break;

            //got a preprocessor symbol
            ++x;
            while(x < buffer_len) {
                if(*(buffer+x) != ' ' && *(buffer+x) != '\t')
                    break;
                ++x;
            }

            int keyword_len = 0;
            const char *keyword = buffer+x;
            while(x+keyword_len < buffer_len) {
                if(((*(buffer+x+keyword_len) < 'a' || *(buffer+x+keyword_len) > 'z')) &&
                   *(buffer+x+keyword_len) != '_') {
                    for(x+=keyword_len; //skip spaces after keyword
                        x < buffer_len && (*(buffer+x) == ' ' || *(buffer+x) == '\t');
                        x++);
                    break;
                } else if(qmake_endOfLine(*(buffer+x+keyword_len))) {
                    x += keyword_len-1;
                    keyword_len = 0;
                    break;
                }
                keyword_len++;
            }

            if(keyword_len == 7 && !strncmp(keyword, "include", keyword_len)) {
                char term = *(buffer + x);
                if(term == '<') {
                    try_local = false;
                    term = '>';
                } else if(term != '"') { //wtf?
                    continue;
                }
                x++;

                int inc_len;
                for(inc_len = 0; *(buffer + x + inc_len) != term && !qmake_endOfLine(*(buffer + x + inc_len)); ++inc_len);
                *(buffer + x + inc_len) = '\0';
                inc = buffer + x;
                x += inc_len;
            } else if(keyword_len == 13 && !strncmp(keyword, "qmake_warning", keyword_len)) {
                char term = 0;
                if(*(buffer + x) == '"')
                    term = '"';
                if(*(buffer + x) == '\'')
                    term = '\'';
                if(term)
                    x++;

                int msg_len;
                for(msg_len = 0; (term && *(buffer + x + msg_len) != term) &&
                              !qmake_endOfLine(*(buffer + x + msg_len)); ++msg_len);
                *(buffer + x + msg_len) = '\0';
                debug_msg(0, "%s:%d %s -- %s", file->file.local().toLatin1().constData(), line_count, keyword, buffer+x);
                x += msg_len;
            } else if(*(buffer+x) == '\'' || *(buffer+x) == '"') {
                const char term = *(buffer+(x++));
                while(x < buffer_len) {
                    if(*(buffer+x) == term)
                        break;
                    if(*(buffer+x) == '\\') {
                        x+=2;
                    } else {
                        if(qmake_endOfLine(*(buffer+x)))
                            ++line_count;
                        ++x;
                    }
                }
            }
        }

        if(inc) {
            if(!includes)
                includes = new SourceFiles;
            SourceFile *dep = includes->lookupFile(inc);
            if(!dep) {
                bool exists = false;
                QMakeLocalFileName lfn(inc);
                if(QDir::isRelativePath(lfn.real())) {
                    if(try_local) {
                        QString dir = findFileInfo(file->file).path();
                        if(QDir::isRelativePath(dir))
                            dir.prepend(qmake_getpwd() + "/");
                        if(!dir.endsWith("/"))
                            dir += "/";
                        QMakeLocalFileName f(dir + lfn.local());
                        if(findFileInfo(f).exists()) {
                            lfn = fixPathForFile(f);
                            exists = true;
                        }
                    }
                    if(!exists) { //path lookup
                        for(QList<QMakeLocalFileName>::Iterator it = depdirs.begin(); it != depdirs.end(); ++it) {
                            QMakeLocalFileName f((*it).real() + Option::dir_sep + lfn.real());
                            QFileInfo fi(findFileInfo(f));
                            if(fi.exists() && !fi.isDir()) {
                                lfn = fixPathForFile(f);
                                exists = true;
                                break;
                            }