qtdeclarative/tools/qmllint/main.cpp

537 lines
22 KiB
C++

// Copyright (C) 2016 Klaralvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Sergio Martins <sergio.martins@kdab.com>
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include <QtQmlToolingSettings/private/qqmltoolingsettings_p.h>
#include <QtQmlToolingSettings/private/qqmltoolingutils_p.h>
#include <QtQmlCompiler/private/qqmljscompiler_p.h>
#include <QtQmlCompiler/private/qqmljslinter_p.h>
#include <QtQmlCompiler/private/qqmljsloggingutils_p.h>
#include <QtQmlCompiler/private/qqmljsresourcefilemapper_p.h>
#include <QtQmlCompiler/private/qqmljsutils_p.h>
#include <QtCore/qdebug.h>
#include <QtCore/qfile.h>
#include <QtCore/qfileinfo.h>
#include <QtCore/qcoreapplication.h>
#include <QtCore/qdiriterator.h>
#include <QtCore/qjsonobject.h>
#include <QtCore/qjsonarray.h>
#include <QtCore/qjsondocument.h>
#include <QtCore/qscopeguard.h>
#if QT_CONFIG(commandlineparser)
#include <QtCore/qcommandlineparser.h>
#endif
#include <QtCore/qlibraryinfo.h>
#include <cstdio>
using namespace Qt::StringLiterals;
constexpr int JSON_LOGGING_FORMAT_REVISION = 4;
bool argumentsFromCommandLineAndFile(QStringList& allArguments, const QStringList &arguments)
{
allArguments.reserve(arguments.size());
for (const QString &argument : arguments) {
// "@file" doesn't start with a '-' so we can't use QCommandLineParser for it
if (argument.startsWith(u'@')) {
QString optionsFile = argument;
optionsFile.remove(0, 1);
if (optionsFile.isEmpty()) {
qWarning().nospace() << "The @ option requires an input file";
return false;
}
QFile f(optionsFile);
if (!f.open(QIODevice::ReadOnly | QIODevice::Text)) {
qWarning().nospace() << "Cannot open options file specified with @";
return false;
}
while (!f.atEnd()) {
QString line = QString::fromLocal8Bit(f.readLine().trimmed());
if (!line.isEmpty())
allArguments << line;
}
} else {
allArguments << argument;
}
}
return true;
}
int main(int argc, char *argv[])
{
QHashSeed::setDeterministicGlobalSeed();
QList<QQmlJS::LoggerCategory> categories;
QCoreApplication app(argc, argv);
QCoreApplication::setApplicationName("qmllint");
QCoreApplication::setApplicationVersion(QT_VERSION_STR);
QCommandLineParser parser;
QQmlToolingSettings settings(QLatin1String("qmllint"));
parser.setApplicationDescription(QLatin1String(R"(QML syntax verifier and analyzer
All warnings can be set to three levels:
disable - Fully disables the warning.
info - Displays the warning but does not influence the return code.
warning - Displays the warning and leads to a non-zero exit code if more warnings than max-warnings occur.
error - Displays the warning as error and leads to a non-zero exit code if encountered.
)"));
parser.addHelpOption();
parser.addVersionOption();
QCommandLineOption silentOption(QStringList() << "s" << "silent",
QLatin1String("Don't output syntax errors"));
parser.addOption(silentOption);
QCommandLineOption jsonOption(QStringList() << "json",
QLatin1String("Write output as JSON to file (or use the special "
"filename '-' to write to stdout)"),
QLatin1String("file"), QString());
parser.addOption(jsonOption);
QCommandLineOption writeDefaultsOption(
QStringList() << "write-defaults",
QLatin1String("Writes defaults settings to .qmllint.ini and exits (Warning: This "
"will overwrite any existing settings and comments!)"));
parser.addOption(writeDefaultsOption);
QCommandLineOption ignoreSettings(QStringList() << "ignore-settings",
QLatin1String("Ignores all settings files and only takes "
"command line options into consideration"));
parser.addOption(ignoreSettings);
QCommandLineOption moduleOption({ QStringLiteral("M"), QStringLiteral("module") },
QStringLiteral("Lint modules instead of files"));
parser.addOption(moduleOption);
QCommandLineOption resourceOption(
{ QStringLiteral("resource") },
QStringLiteral("Look for related files in the given resource file"),
QStringLiteral("resource"));
parser.addOption(resourceOption);
const QString &resourceSetting = QLatin1String("ResourcePath");
settings.addOption(resourceSetting);
QCommandLineOption qmlImportPathsOption(
QStringList() << "I"
<< "qmldirs",
QLatin1String("Look for QML modules in specified directory"),
QLatin1String("directory"));
parser.addOption(qmlImportPathsOption);
const QString qmlImportPathsSetting = QLatin1String("AdditionalQmlImportPaths");
settings.addOption(qmlImportPathsSetting);
QCommandLineOption environmentOption(
QStringList() << "E",
QLatin1String("Use the QML_IMPORT_PATH environment variable to look for QML Modules"));
parser.addOption(environmentOption);
QCommandLineOption qmlImportNoDefault(
QStringList() << "bare",
QLatin1String("Do not include default import directories or the current directory. "
"This may be used to run qmllint on a project using a different Qt version."));
parser.addOption(qmlImportNoDefault);
const QString qmlImportNoDefaultSetting = QLatin1String("DisableDefaultImports");
settings.addOption(qmlImportNoDefaultSetting, false);
QCommandLineOption qmldirFilesOption(
QStringList() << "i"
<< "qmltypes",
QLatin1String("Import the specified qmldir files. By default, the qmldir file found "
"in the current directory is used if present. If no qmldir file is found,"
"but qmltypes files are, those are imported instead. When this option is "
"set, you have to explicitly add the qmldir or any qmltypes files in the "
"current directory if you want it to be used. Importing qmltypes files "
"without their corresponding qmldir file is inadvisable."),
QLatin1String("qmldirs"));
parser.addOption(qmldirFilesOption);
const QString qmldirFilesSetting = QLatin1String("OverwriteImportTypes");
settings.addOption(qmldirFilesSetting);
QCommandLineOption absolutePath(
QStringList() << "absolute-path",
QLatin1String("Use absolute paths for logging instead of relative ones."));
absolutePath.setFlags(QCommandLineOption::HiddenFromHelp);
parser.addOption(absolutePath);
QCommandLineOption fixFile(QStringList() << "f"
<< "fix",
QLatin1String("Automatically apply fix suggestions"));
parser.addOption(fixFile);
QCommandLineOption dryRun(QStringList() << "dry-run",
QLatin1String("Only print out the contents of the file after fix "
"suggestions without applying them. Also prints the "
"settings file that would be used for this instance."));
parser.addOption(dryRun);
QCommandLineOption listPluginsOption(QStringList() << "list-plugins",
QLatin1String("List all available plugins"));
parser.addOption(listPluginsOption);
QCommandLineOption pluginsDisable(
QStringList() << "D"
<< "disable-plugins",
QLatin1String("List of qmllint plugins to disable (all to disable all plugins)"),
QLatin1String("plugins"));
parser.addOption(pluginsDisable);
const QString pluginsDisableSetting = QLatin1String("DisablePlugins");
settings.addOption(pluginsDisableSetting);
QCommandLineOption pluginPathsOption(
QStringList() << "P"
<< "plugin-paths",
QLatin1String("Look for qmllint plugins in specified directory"),
QLatin1String("directory"));
parser.addOption(pluginPathsOption);
QCommandLineOption maxWarnings(
QStringList() << "W"
<< "max-warnings",
QLatin1String("Exit with an error code if more than \"count\" many"
"warnings are found by qmllint. By default or if \"count\" "
"is -1, warnings do not cause qmllint "
"to return with an error exit code."),
"count"
);
parser.addOption(maxWarnings);
const QString maxWarningsSetting = QLatin1String("MaxWarnings");
settings.addOption(maxWarningsSetting, -1);
// QTBUG-135020: don't break existing user configs and still accept PropertyAliasCycles
settings.addOption("PropertyAliasCycles"_L1);
auto addCategory = [&](const QQmlJS::LoggerCategory &category) {
categories.push_back(category);
if (category.isDefault())
return;
QCommandLineOption option(
category.id().name().toString(),
category.description()
+ QStringLiteral(" (default: %1)")
.arg(QQmlJS::LoggingUtils::levelToString(category)),
QStringLiteral("level"), QQmlJS::LoggingUtils::levelToString(category));
if (category.isIgnored())
option.setFlags(QCommandLineOption::HiddenFromHelp);
parser.addOption(option);
settings.addOption(QStringLiteral("Warnings/") + category.settingsName(),
QQmlJS::LoggingUtils::levelToString(category));
};
for (const auto &category : QQmlJSLogger::defaultCategories()) {
addCategory(category);
}
parser.addPositionalArgument(QLatin1String("files"),
QLatin1String("list of qml or js files to verify"));
QStringList arguments;
if (!argumentsFromCommandLineAndFile(arguments, app.arguments())) {
// argumentsFromCommandLine already printed any necessary warnings.
return 1;
}
parser.parse(arguments); // parse but ignore unknown options temporarily: plugins might add some
// later
// Since we can't use QCommandLineParser::process(), we need to handle version and help manually
if (parser.isSet("version"))
parser.showVersion();
auto updateLogLevels = [&]() {
QQmlJS::LoggingUtils::updateLogLevels(categories, settings, &parser);
};
bool silent = parser.isSet(silentOption);
bool useAbsolutePath = parser.isSet(absolutePath);
bool useJson = parser.isSet(jsonOption);
// use host qml import path as a sane default if not explicitly disabled
QStringList defaultImportPaths = { QDir::currentPath() };
if (parser.isSet(resourceOption)) {
defaultImportPaths.append(QLatin1String(":/qt-project.org/imports"));
defaultImportPaths.append(QLatin1String(":/qt/qml"));
};
defaultImportPaths.append(QLibraryInfo::path(QLibraryInfo::QmlImportsPath));
QStringList qmlImportPaths =
parser.isSet(qmlImportNoDefault) ? QStringList {} : defaultImportPaths;
QStringList defaultQmldirFiles;
if (parser.isSet(qmldirFilesOption)) {
defaultQmldirFiles = QQmlJSUtils::cleanPaths(parser.values(qmldirFilesOption));
} else if (!parser.isSet(qmlImportNoDefault)){
// If nothing given explicitly, use the qmldir file from the current directory.
QFileInfo qmldirFile(QStringLiteral("qmldir"));
if (qmldirFile.isFile()) {
defaultQmldirFiles.append(qmldirFile.absoluteFilePath());
} else {
// If no qmldir file is found, use the qmltypes files
// from the current directory for backwards compatibility.
QDirIterator it(".", {"*.qmltypes"}, QDir::Files);
while (it.hasNext()) {
it.next();
defaultQmldirFiles.append(it.fileInfo().absoluteFilePath());
}
}
}
QStringList qmldirFiles = defaultQmldirFiles;
const QStringList defaultResourceFiles =
parser.isSet(resourceOption) ? parser.values(resourceOption) : QStringList {};
QStringList resourceFiles = defaultResourceFiles;
bool success = true;
QStringList pluginPaths;
if (parser.isSet(pluginPathsOption))
pluginPaths << parser.values(pluginPathsOption);
QQmlJSLinter linter(qmlImportPaths, pluginPaths, useAbsolutePath);
for (const QQmlJSLinter::Plugin &plugin : linter.plugins()) {
for (const QQmlJS::LoggerCategory &category : plugin.categories())
addCategory(category);
}
if (parser.isSet(writeDefaultsOption)) {
return settings.writeDefaults() ? 0 : 1;
}
if (parser.isSet("help") || parser.isSet("help-all"))
parser.showHelp(0);
if (!parser.unknownOptionNames().isEmpty())
parser.process(app);
updateLogLevels();
if (parser.isSet(listPluginsOption)) {
const std::vector<QQmlJSLinter::Plugin> &plugins = linter.plugins();
if (!plugins.empty()) {
qInfo().nospace().noquote() << "Plugin\t\t\tBuilt-in?\tVersion\tAuthor\t\tDescription";
for (const QQmlJSLinter::Plugin &plugin : plugins) {
qInfo().nospace().noquote()
<< plugin.name() << "\t\t\t" << (plugin.isBuiltin() ? "Yes" : "No")
<< "\t\t" << plugin.version() << "\t" << plugin.author() << "\t\t"
<< plugin.description();
}
} else {
qWarning() << "No plugins installed.";
}
return 0;
}
const auto positionalArguments = parser.positionalArguments();
if (positionalArguments.isEmpty()) {
parser.showHelp(-1);
}
if (parser.isSet(dryRun))
settings.reportConfigForFiles(positionalArguments);
QJsonArray jsonFiles;
for (const QString &filename : positionalArguments) {
if (!parser.isSet(ignoreSettings))
settings.search(filename);
updateLogLevels();
const QDir fileDir = QFileInfo(filename).absoluteDir();
auto addAbsolutePaths = [&](QStringList &list, const QStringList &entries) {
for (const QString &file : entries)
list << (QFileInfo(file).isAbsolute() ? file : fileDir.filePath(file));
};
resourceFiles = defaultResourceFiles;
addAbsolutePaths(resourceFiles, settings.value(resourceSetting).toStringList());
qmldirFiles = defaultQmldirFiles;
if (settings.isSet(qmldirFilesSetting)
&& !settings.value(qmldirFilesSetting).toStringList().isEmpty()) {
qmldirFiles = {};
addAbsolutePaths(qmldirFiles, settings.value(qmldirFilesSetting).toStringList());
}
if (parser.isSet(qmlImportNoDefault)
|| (settings.isSet(qmlImportNoDefaultSetting)
&& settings.value(qmlImportNoDefaultSetting).toBool())) {
qmlImportPaths = {};
} else {
qmlImportPaths = defaultImportPaths;
}
if (parser.isSet(qmlImportPathsOption))
qmlImportPaths << parser.values(qmlImportPathsOption);
if (parser.isSet(environmentOption)) {
if (silent) {
qmlImportPaths << qEnvironmentVariable("QML_IMPORT_PATH")
.split(QDir::separator(), Qt::SkipEmptyParts)
<< qEnvironmentVariable("QML2_IMPORT_PATH")
.split(QDir::separator(), Qt::SkipEmptyParts);
} else {
if (const QStringList dirsFromEnv =
QQmlToolingUtils::getAndWarnForInvalidDirsFromEnv(u"QML_IMPORT_PATH"_s);
!dirsFromEnv.isEmpty()) {
qInfo().nospace().noquote()
<< "Using import directories passed from environment variable "
"\"QML_IMPORT_PATH\": \""
<< dirsFromEnv.join(u"\", \""_s) << "\".";
qmlImportPaths << dirsFromEnv;
}
if (const QStringList dirsFromEnv =
QQmlToolingUtils::getAndWarnForInvalidDirsFromEnv(
u"QML2_IMPORT_PATH"_s);
!dirsFromEnv.isEmpty()) {
qInfo().nospace().noquote() << "Using import directories passed from the "
"deprecated environment variable "
"\"QML2_IMPORT_PATH\": \""
<< dirsFromEnv.join(u"\", \""_s) << "\".";
qmlImportPaths << dirsFromEnv;
}
}
}
addAbsolutePaths(qmlImportPaths, settings.value(qmlImportPathsSetting).toStringList());
QSet<QString> disabledPlugins;
if (parser.isSet(pluginsDisable)) {
for (const QString &plugin : parser.values(pluginsDisable))
disabledPlugins << plugin.toLower();
}
if (settings.isSet(pluginsDisableSetting)) {
for (const QString &plugin : settings.value(pluginsDisableSetting).toStringList())
disabledPlugins << plugin.toLower();
}
linter.setPluginsEnabled(!disabledPlugins.contains("all"));
if (!linter.pluginsEnabled())
continue;
auto &plugins = linter.plugins();
for (auto &plugin : plugins)
plugin.setEnabled(!disabledPlugins.contains(plugin.name().toLower()));
const bool isFixing = parser.isSet(fixFile);
QQmlJSLinter::LintResult lintResult;
if (parser.isSet(moduleOption)) {
lintResult = linter.lintModule(filename, silent, useJson ? &jsonFiles : nullptr,
qmlImportPaths, resourceFiles);
} else {
lintResult = linter.lintFile(filename, nullptr, silent || isFixing,
useJson ? &jsonFiles : nullptr, qmlImportPaths,
qmldirFiles, resourceFiles, categories);
}
success &= (lintResult == QQmlJSLinter::LintSuccess || lintResult == QQmlJSLinter::HasWarnings);
if (success) {
const qsizetype value = parser.isSet(maxWarnings)
? parser.value(maxWarnings).toInt()
: settings.value(maxWarningsSetting).toInt();
if (value != -1 && value < linter.logger()->numWarnings())
success = false;
}
if (isFixing) {
if (lintResult != QQmlJSLinter::LintSuccess && lintResult != QQmlJSLinter::HasWarnings)
continue;
QString fixedCode;
const QQmlJSLinter::FixResult result = linter.applyFixes(&fixedCode, silent);
if (result != QQmlJSLinter::NothingToFix && result != QQmlJSLinter::FixSuccess) {
success = false;
continue;
}
if (parser.isSet(dryRun)) {
QTextStream(stdout) << fixedCode;
} else {
if (result == QQmlJSLinter::NothingToFix) {
if (!silent)
qWarning().nospace() << "Nothing to fix in " << filename;
continue;
}
const QString backupFile = filename + u".bak"_s;
if (QFile::exists(backupFile) && !QFile::remove(backupFile)) {
if (!silent) {
qWarning().nospace() << "Failed to remove old backup file " << backupFile
<< ", aborting";
}
success = false;
continue;
}
if (!QFile::copy(filename, backupFile)) {
if (!silent) {
qWarning().nospace()
<< "Failed to create backup file " << backupFile << ", aborting";
}
success = false;
continue;
}
QFile file(filename);
if (!file.open(QIODevice::WriteOnly)) {
if (!silent) {
qWarning().nospace() << "Failed to open " << filename
<< " for writing:" << file.errorString();
}
success = false;
continue;
}
const QByteArray data = fixedCode.toUtf8();
if (file.write(data) != data.size()) {
if (!silent) {
qWarning().nospace() << "Failed to write new contents to " << filename
<< ": " << file.errorString();
}
success = false;
continue;
}
if (!silent) {
qDebug().nospace() << "Applied fixes to " << filename << ". Backup created at "
<< backupFile;
}
}
}
}
if (useJson) {
QJsonObject result;
result[u"revision"_s] = JSON_LOGGING_FORMAT_REVISION;
result[u"files"_s] = jsonFiles;
QString fileName = parser.value(jsonOption);
const QByteArray json = QJsonDocument(result).toJson(QJsonDocument::Compact);
if (fileName == u"-") {
QTextStream(stdout) << QString::fromUtf8(json);
} else {
QFile file(fileName);
if (file.open(QFile::WriteOnly))
file.write(json);
else
success = false;
}
}
return success ? 0 : -1;
}