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// Copyright (C) 2019 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include <QCoreApplication>
#include <QFile>
#include <QTextStream>
#include <QtQml/private/qqmljslexer_p.h>
#include <QtQml/private/qqmljsparser_p.h>
#include <QtQml/private/qqmljsengine_p.h>
#include <QtQml/private/qqmljsastvisitor_p.h>
#include <QtQml/private/qqmljsast_p.h>
#include <QtQmlDom/private/qqmldomitem_p.h>
#include <QtQmlDom/private/qqmldomexternalitems_p.h>
#include <QtQmlDom/private/qqmldomtop_p.h>
#include <QtQmlDom/private/qqmldomoutwriter_p.h>
#include <QtQmlDom/private/qqmldomlinewriterfactory_p.h>
#if QT_CONFIG(commandlineparser)
# include <QCommandLineParser>
#endif
#include <QtQmlToolingSettings/private/qqmltoolingsettings_p.h>
#include <QtQmlFormat/private/qqmlformatsettings_p.h>
#include <QtQmlFormat/private/qqmlformatoptions_p.h>
using namespace QQmlJS::Dom;
static void logParsingErrors(const DomItem &fileItem, const QString &filename)
{
fileItem.iterateErrors(
[](const DomItem &, const ErrorMessage &msg) {
errorToQDebug(msg);
return true;
},
true);
qWarning().noquote() << "Failed to parse" << filename;
}
// TODO
// refactor this workaround. ExternalOWningItem is not recognized as an owning type
// in ownerAs.
static std::shared_ptr<ExternalOwningItem> getFileItemOwner(const DomItem &fileItem)
{
std::shared_ptr<ExternalOwningItem> filePtr = nullptr;
switch (fileItem.internalKind()) {
case DomType::JsFile:
filePtr = fileItem.ownerAs<JsFile>();
break;
default:
filePtr = fileItem.ownerAs<QmlFile>();
break;
}
return filePtr;
}
// TODO refactor
// Introduce better encapsulation and separation of concerns and move to DOM API
// returns a DomItem corresponding to the loaded file and bool indicating the validity of the file
static std::pair<DomItem, bool> parse(const QString &filename)
{
auto envPtr =
DomEnvironment::create(QStringList(),
QQmlJS::Dom::DomEnvironment::Option::SingleThreaded
| QQmlJS::Dom::DomEnvironment::Option::NoDependencies);
// placeholder for a node
// containing metadata (ExternalItemInfo) about the loaded file
DomItem fMetadataItem;
envPtr->loadFile(FileToLoad::fromFileSystem(envPtr, filename),
// callback called when everything is loaded that receives the
// loaded external file pair (path, oldValue, newValue)
[&fMetadataItem](Path, const DomItem &, const DomItem &extItemInfo) {
fMetadataItem = extItemInfo;
});
auto fItem = fMetadataItem.fileObject();
auto filePtr = getFileItemOwner(fItem);
return { fItem, filePtr && filePtr->isValid() };
}
static bool parseFile(const QString &filename, const QQmlFormatOptions &options)
{
const auto [fileItem, validFile] = parse(filename);
if (!validFile) {
logParsingErrors(fileItem, filename);
return false;
}
// Turn AST back into source code
if (options.isVerbose())
qWarning().noquote() << "Dumping" << filename;
const auto &code = getFileItemOwner(fileItem)->code();
auto lwOptions = options.optionsForCode(code);
WriteOutChecks checks = WriteOutCheck::Default;
//Disable writeOutChecks for some usecases
if (options.forceEnabled() || options.isMaxColumnWidthSet() || code.size() > 32000
|| fileItem.internalKind() == DomType::JsFile) {
checks = WriteOutCheck::None;
}
bool res = false;
if (options.isInplace()) {
if (options.isVerbose())
qWarning().noquote() << "Writing to file" << filename;
FileWriter fw;
const unsigned numberOfBackupFiles = 0;
res = fileItem.writeOut(filename, numberOfBackupFiles, lwOptions, &fw, checks);
} else {
QFile out;
if (out.open(stdout, QIODevice::WriteOnly)) {
auto lw = createLineWriter([&out](QStringView s) { out.write(s.toUtf8()); }, filename,
lwOptions);
OutWriter ow(*lw);
res = fileItem.writeOutForFile(ow, checks);
ow.flush();
} else {
res = false;
}
}
return res;
}
int main(int argc, char *argv[])
{
QCoreApplication app(argc, argv);
QCoreApplication::setApplicationName("qmlformat");
QCoreApplication::setApplicationVersion(QT_VERSION_STR);
QQmlFormatSettings settings(QLatin1String("qmlformat"));
const auto &options = QQmlFormatOptions::buildCommandLineOptions(app.arguments());
if (!options.isValid()) {
for (const auto &error : options.errors()) {
qWarning().noquote() << error;
}
return -1;
}
if (options.writeDefaultSettingsEnabled())
return settings.writeDefaults() ? 0 : -1;
bool success = true;
if (!options.files().isEmpty()) {
if (!options.arguments().isEmpty())
qWarning() << "Warning: Positional arguments are ignored when -F is used";
for (const QString &file : options.files()) {
Q_ASSERT(!file.isEmpty());
if (!parseFile(file, options.optionsForFile(file, &settings)))
success = false;
}
} else {
for (const QString &file : options.arguments()) {
if (!parseFile(file, options.optionsForFile(file, &settings)))
success = false;
}
}
return success ? 0 : 1;
}
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