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main.cpp
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main.cpp
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/*
* This file is part of the PySide project.
*
* Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
*
* Contact: PySide team <[email protected]>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
*/
#include <QCoreApplication>
#include <QLinkedList>
#include <QLibrary>
#include <QDomDocument>
#include <iostream>
#include <apiextractor.h>
#include "generatorrunnerconfig.h"
#include "generator.h"
#ifdef _WINDOWS
#define PATH_SPLITTER ";"
#else
#define PATH_SPLITTER ":"
#endif
namespace {
class ArgsHandler
{
public:
explicit ArgsHandler(const QMap<QString, QString>& other);
virtual ~ArgsHandler();
inline QMap<QString, QString>& args() const
{
return *m_args;
}
inline bool argExists(const QString& s) const
{
return m_args->contains(s);
}
QString removeArg(const QString& s);
bool argExistsRemove(const QString& s);
inline QString argValue(const QString& s) const
{
return m_args->value(s);
}
inline bool noArgs() const
{
return m_args->isEmpty();
}
private:
QMap<QString, QString>* m_args;
};
ArgsHandler::ArgsHandler(const QMap<QString, QString>& other)
: m_args(new QMap<QString, QString>(other))
{
}
ArgsHandler::~ArgsHandler()
{
delete m_args;
}
QString ArgsHandler::removeArg(const QString& s)
{
QString retval;
if (argExists(s)) {
retval = argValue(s);
m_args->remove(s);
}
return retval;
}
bool ArgsHandler::argExistsRemove(const QString& s)
{
bool retval = false;
if (argExists(s)) {
retval = true;
m_args->remove(s);
}
return retval;
}
}
static void printOptions(QTextStream& s, const QMap<QString, QString>& options)
{
QMap<QString, QString>::const_iterator it = options.constBegin();
s.setFieldAlignment(QTextStream::AlignLeft);
for (; it != options.constEnd(); ++it) {
s << " --";
s.setFieldWidth(38);
s << it.key() << it.value();
s.setFieldWidth(0);
s << endl;
}
}
typedef void (*getGeneratorsFunc)(QLinkedList<Generator*>*);
static bool processProjectFile(QFile& projectFile, QMap<QString, QString>& args)
{
QByteArray line = projectFile.readLine().trimmed();
if (line.isEmpty() || line != "[generator-project]")
return false;
QStringList includePaths;
QStringList typesystemPaths;
QStringList apiVersions;
while (!projectFile.atEnd()) {
line = projectFile.readLine().trimmed();
if (line.isEmpty())
continue;
int split = line.indexOf("=");
QString key;
QString value;
if (split > 0) {
key = line.left(split - 1).trimmed();
value = line.mid(split + 1).trimmed();
} else {
key = line;
}
if (key == "include-path")
includePaths << QDir::toNativeSeparators(value);
else if (key == "typesystem-path")
typesystemPaths << QDir::toNativeSeparators(value);
else if (key == "api-version")
apiVersions << value;
else if (key == "header-file")
args["arg-1"] = value;
else if (key == "typesystem-file")
args["arg-2"] = value;
else
args[key] = value;
}
if (!includePaths.isEmpty())
args["include-paths"] = includePaths.join(PATH_SPLITTER);
if (!typesystemPaths.isEmpty())
args["typesystem-paths"] = typesystemPaths.join(PATH_SPLITTER);
if (!apiVersions.isEmpty())
args["api-version"] = apiVersions.join("|");
return true;
}
static QMap<QString, QString> getInitializedArguments()
{
QMap<QString, QString> args;
QStringList arguments = QCoreApplication::arguments();
QString appName = arguments.first();
arguments.removeFirst();
QString projectFileName;
foreach (const QString& arg, arguments) {
if (arg.startsWith("--project-file")) {
int split = arg.indexOf("=");
if (split > 0)
projectFileName = arg.mid(split + 1).trimmed();
break;
}
}
if (projectFileName.isNull())
return args;
if (!QFile::exists(projectFileName)) {
std::cerr << qPrintable(appName) << ": Project file \"";
std::cerr << qPrintable(projectFileName) << "\" not found.";
std::cerr << std::endl;
return args;
}
QFile projectFile(projectFileName);
if (!projectFile.open(QIODevice::ReadOnly))
return args;
if (!processProjectFile(projectFile, args)) {
std::cerr << qPrintable(appName) << ": first line of project file \"";
std::cerr << qPrintable(projectFileName) << "\" must be the string \"[generator-project]\"";
std::cerr << std::endl;
return args;
}
return args;
}
static QMap<QString, QString> getCommandLineArgs()
{
QMap<QString, QString> args = getInitializedArguments();
QStringList arguments = QCoreApplication::arguments();
arguments.removeFirst();
int argNum = 0;
foreach (QString arg, arguments) {
arg = arg.trimmed();
if (arg.startsWith("--")) {
int split = arg.indexOf("=");
if (split > 0)
args[arg.mid(2).left(split-2)] = arg.mid(split + 1).trimmed();
else
args[arg.mid(2)] = QString();
} else if (arg.startsWith("-")) {
args[arg.mid(1)] = QString();
} else {
argNum++;
args[QString("arg-%1").arg(argNum)] = arg;
}
}
return args;
}
void printUsage(const GeneratorList& generators, const QString& generatorName)
{
QTextStream s(stdout);
s << "Usage:\n "
<< (generatorName.isEmpty() ? "generator" : generatorName)
<< " [options] header-file typesystem-file\n\n"
<< "General options:\n";
QMap<QString, QString> generalOptions;
generalOptions.insert("project-file=<file>", "text file containing a description of the binding project. Replaces and overrides command line arguments");
generalOptions.insert("debug-level=[sparse|medium|full]", "Set the debug level");
generalOptions.insert("silent", "Avoid printing any message");
generalOptions.insert("help", "Display this help and exit");
generalOptions.insert("no-suppress-warnings", "Show all warnings");
generalOptions.insert("output-directory=<path>", "The directory where the generated files will be written");
generalOptions.insert("include-paths=<path>[" PATH_SPLITTER "<path>" PATH_SPLITTER "...]", "Include paths used by the C++ parser");
generalOptions.insert("typesystem-paths=<path>[" PATH_SPLITTER "<path>" PATH_SPLITTER "...]", "Paths used when searching for typesystems");
generalOptions.insert("documentation-only", "Do not generates any code, just the documentation");
generalOptions.insert("license-file=<license-file>", "File used for copyright headers of generated files");
generalOptions.insert("version", "Output version information and exit");
generalOptions.insert("generator-set=<\"generator module\">", "generator-set to be used. e.g. qtdoc");
generalOptions.insert("api-version=<\"package mask\">,<\"version\">", "Specify the supported api version used to generate the bindings");
generalOptions.insert("drop-type-entries=\"<TypeEntry0>[;TypeEntry1;...]\"", "Semicolon separated list of type system entries (classes, namespaces, global functions and enums) to be dropped from generation.");
printOptions(s, generalOptions);
foreach (Generator* generator, generators) {
QMap<QString, QString> options = generator->options();
if (!options.isEmpty()) {
s << endl << generator->name() << " options:\n";
printOptions(s, generator->options());
}
}
}
static inline void printVerAndBanner()
{
std::cout << "generatorrunner v" GENERATORRUNNER_VERSION << std::endl;
std::cout << "Copyright (C) 2009-2012 Nokia Corporation and/or its subsidiary(-ies)" << std::endl;
}
static inline void errorPrint(const QString& s,
const bool& verAndBanner = false)
{
if (verAndBanner)
printVerAndBanner();
std::cerr << s.toAscii().constData() << std::endl;
}
int main(int argc, char *argv[])
{
// needed by qxmlpatterns
QCoreApplication app(argc, argv);
// Store command arguments in a map
QMap<QString, QString> args = getCommandLineArgs();
ArgsHandler argsHandler(args);
GeneratorList generators;
/* Get alias name (e.g.: shiboken) */
const QString aliasName = argsHandler.removeArg("alias-name");
if (argsHandler.argExistsRemove("version")) {
printVerAndBanner();
return EXIT_SUCCESS;
}
// Try to load a generator
QString generatorSet = argsHandler.removeArg("generator-set");
// Also check "generatorSet" command line argument for backward compatibility.
if (generatorSet.isEmpty())
generatorSet = argsHandler.removeArg("generatorSet");
if (!generatorSet.isEmpty()) {
QFileInfo generatorFile(generatorSet);
if (!generatorFile.exists()) {
QString generatorSetName(generatorSet + "_generator" + MODULE_EXTENSION);
// More library paths may be added via the QT_PLUGIN_PATH environment variable.
QCoreApplication::addLibraryPath(GENERATORRUNNER_PLUGIN_DIR);
foreach (const QString& path, QCoreApplication::libraryPaths()) {
generatorFile.setFile(QDir(path), generatorSetName);
if (generatorFile.exists())
break;
}
}
if (!generatorFile.exists()) {
errorPrint(QString("%1: Error loading generator-set plugin: %2 module not found.").
arg(aliasName.isEmpty() ? argv[0] : aliasName).
arg(qPrintable(generatorFile.baseName())), true);
return EXIT_FAILURE;
}
QLibrary plugin(generatorFile.filePath());
getGeneratorsFunc getGenerators = (getGeneratorsFunc)plugin.resolve("getGenerators");
if (getGenerators) {
getGenerators(&generators);
} else {
errorPrint(QString("%1: Error loading generator-set plugin: %2").
arg(aliasName.isEmpty() ? argv[0] : aliasName).
arg(qPrintable(plugin.errorString())), true);
return EXIT_FAILURE;
}
} else if (!argsHandler.argExists("help")) {
errorPrint(QString("%1: You need to specify a generator with --generator-set=GENERATOR_NAME").
arg(aliasName.isEmpty() ? argv[0] : aliasName), true);
return EXIT_FAILURE;
}
/* We need alias-name argument for the usage's message being
* printed properly when running Generatorrunner from a Shiboken's
* process. Don't worry, this "new method of doing IPC between two
* processes" is only used here as a workaround, and not our way
* out to do IPC. :-)
*/
if (argsHandler.argExistsRemove("help")) {
printUsage(generators, aliasName);
return EXIT_SUCCESS;
}
QString licenseComment;
QString licenseFileName = argsHandler.removeArg("license-file");
if (!licenseFileName.isEmpty()) {
if (QFile::exists(licenseFileName)) {
QFile licenseFile(licenseFileName);
if (licenseFile.open(QIODevice::ReadOnly))
licenseComment = licenseFile.readAll();
} else {
errorPrint(QString("Couldn't find the file containing the license heading: %1").
arg(qPrintable(licenseFileName)));
return EXIT_FAILURE;
}
}
QString outputDirectory = argsHandler.removeArg("output-directory");
if (outputDirectory.isEmpty())
outputDirectory = "out";
if (!QDir(outputDirectory).exists()) {
if (!QDir().mkpath(outputDirectory)) {
ReportHandler::warning("Can't create output directory: "+outputDirectory);
return EXIT_FAILURE;
}
}
// Create and set-up API Extractor
ApiExtractor extractor;
extractor.setLogDirectory(outputDirectory);
if (argsHandler.argExistsRemove("silent")) {
extractor.setSilent(true);
} else {
QString level = argsHandler.removeArg("debug-level");
if (!level.isEmpty()) {
if (level == "sparse")
extractor.setDebugLevel(ReportHandler::SparseDebug);
else if (level == "medium")
extractor.setDebugLevel(ReportHandler::MediumDebug);
else if (level == "full")
extractor.setDebugLevel(ReportHandler::FullDebug);
}
}
if (argsHandler.argExistsRemove("no-suppress-warnings"))
extractor.setSuppressWarnings(false);
if (argsHandler.argExists("api-version")) {
QStringList versions = argsHandler.removeArg("api-version").split("|");
foreach (QString fullVersion, versions) {
QStringList parts = fullVersion.split(",");
QString package;
QString version;
package = parts.count() == 1 ? "*" : parts.first();
version = parts.last();
extractor.setApiVersion(package, version.toAscii());
}
}
if (argsHandler.argExists("drop-type-entries"))
extractor.setDropTypeEntries(argsHandler.removeArg("drop-type-entries"));
QString path = argsHandler.removeArg("typesystem-paths");
if (!path.isEmpty())
extractor.addTypesystemSearchPath(path.split(PATH_SPLITTER));
path = argsHandler.removeArg("include-paths");
if (!path.isEmpty())
extractor.addIncludePath(path.split(PATH_SPLITTER));
QString cppFileName = argsHandler.removeArg("arg-1");
QString typeSystemFileName = argsHandler.removeArg("arg-2");
/* Make sure to remove the project file's arguments (if any) and
* --project-file, also the arguments of each generator before
* checking if there isn't any existing arguments in argsHandler.
*/
argsHandler.removeArg("project-file");
QMap<QString, QString> projectFileArgs = getInitializedArguments();
if (!projectFileArgs.isEmpty()) {
QMap<QString, QString>::const_iterator it =
projectFileArgs.constBegin();
for ( ; it != projectFileArgs.constEnd(); ++it)
argsHandler.removeArg(it.key());
}
foreach (Generator* generator, generators) {
QMap<QString, QString> options = generator->options();
if (!options.isEmpty()) {
QMap<QString, QString>::const_iterator it = options.constBegin();
for ( ; it != options.constEnd(); ++it)
argsHandler.removeArg(it.key());
}
}
if (!argsHandler.noArgs()) {
errorPrint(QString("%1: Called with wrong arguments.").
arg(aliasName.isEmpty() ? argv[0] : aliasName), true);
std::cout << "Note: use --help option for more information." << std::endl;
return EXIT_FAILURE;
}
extractor.setCppFileName(cppFileName);
extractor.setTypeSystem(typeSystemFileName);
if (!extractor.run())
return EXIT_FAILURE;
if (!extractor.classCount())
ReportHandler::warning("No C++ classes found!");
foreach (Generator* g, generators) {
g->setOutputDirectory(outputDirectory);
g->setLicenseComment(licenseComment);
if (g->setup(extractor, args))
g->generate();
}
qDeleteAll(generators);
ReportHandler::flush();
std::cout << "Done, " << ReportHandler::warningCount();
std::cout << " warnings (" << ReportHandler::suppressedCount() << " known issues)";
std::cout << std::endl;
}