/
qgsprocess.cpp
1305 lines (1164 loc) · 44.6 KB
/
qgsprocess.cpp
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/***************************************************************************
qgsprocess.h
-------------------
begin : February 2019
copyright : (C) 2019 Nyall Dawson
email : nyall dot dawson at gmail dot com
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include "qgscommandlineutils.h"
#include "qgsprocess.h"
#include "qgsprocessingregistry.h"
#include "qgsprocessingalgorithm.h"
#include "qgsnativealgorithms.h"
#ifdef HAVE_3D
#include "qgs3dalgorithms.h"
#endif
#include "qgssettings.h"
#include "qgsapplication.h"
#include "qgsprocessingparametertype.h"
#include "processing/models/qgsprocessingmodelalgorithm.h"
#include "qgsproject.h"
#include "qgsgeos.h"
#include "qgsjsonutils.h"
#if defined(Q_OS_UNIX) && !defined(Q_OS_ANDROID)
#include "sigwatch.h"
#endif
#include <iostream>
#include <string>
#include <QObject>
#include <QLibrary>
#include <ogr_api.h>
#include <gdal_version.h>
#include <proj.h>
#include <json.hpp>
ConsoleFeedback::ConsoleFeedback( bool useJson )
: mUseJson( useJson )
{
if ( !mUseJson )
{
connect( this, &QgsFeedback::progressChanged, this, &ConsoleFeedback::showTerminalProgress );
mTimer.start();
}
}
void ConsoleFeedback::setProgressText( const QString &text )
{
if ( !mUseJson )
std::cout << text.toLocal8Bit().constData() << '\n';
QgsProcessingFeedback::setProgressText( text );
}
void ConsoleFeedback::reportError( const QString &error, bool fatalError )
{
if ( !mUseJson )
std::cerr << "ERROR:\t" << error.toLocal8Bit().constData() << '\n';
else
{
if ( !mJsonLog.contains( QStringLiteral( "errors" ) ) )
mJsonLog.insert( QStringLiteral( "errors" ), QStringList() );
mJsonLog[ QStringLiteral( "errors" )] = mJsonLog.value( QStringLiteral( "errors" ) ).toStringList() << error;
}
QgsProcessingFeedback::reportError( error, fatalError );
}
void ConsoleFeedback::pushWarning( const QString &warning )
{
if ( !mUseJson )
std::cout << "WARNING:\t" << warning.toLocal8Bit().constData() << '\n';
else
{
if ( !mJsonLog.contains( QStringLiteral( "warning" ) ) )
mJsonLog.insert( QStringLiteral( "warning" ), QStringList() );
mJsonLog[ QStringLiteral( "warning" )] = mJsonLog.value( QStringLiteral( "warning" ) ).toStringList() << warning;
}
QgsProcessingFeedback::pushWarning( warning );
}
void ConsoleFeedback::pushInfo( const QString &info )
{
if ( !mUseJson )
std::cout << info.toLocal8Bit().constData() << '\n';
else
{
if ( !mJsonLog.contains( QStringLiteral( "info" ) ) )
mJsonLog.insert( QStringLiteral( "info" ), QStringList() );
mJsonLog[ QStringLiteral( "info" )] = mJsonLog.value( QStringLiteral( "info" ) ).toStringList() << info;
}
QgsProcessingFeedback::pushInfo( info );
}
void ConsoleFeedback::pushCommandInfo( const QString &info )
{
if ( !mUseJson )
std::cout << info.toLocal8Bit().constData() << '\n';
else
{
if ( !mJsonLog.contains( QStringLiteral( "info" ) ) )
mJsonLog.insert( QStringLiteral( "info" ), QStringList() );
mJsonLog[ QStringLiteral( "info" )] = mJsonLog.value( QStringLiteral( "info" ) ).toStringList() << info;
}
QgsProcessingFeedback::pushCommandInfo( info );
}
void ConsoleFeedback::pushDebugInfo( const QString &info )
{
if ( !mUseJson )
std::cout << info.toLocal8Bit().constData() << '\n';
else
{
if ( !mJsonLog.contains( QStringLiteral( "info" ) ) )
mJsonLog.insert( QStringLiteral( "info" ), QStringList() );
mJsonLog[ QStringLiteral( "info" )] = mJsonLog.value( QStringLiteral( "info" ) ).toStringList() << info;
}
QgsProcessingFeedback::pushDebugInfo( info );
}
void ConsoleFeedback::pushConsoleInfo( const QString &info )
{
if ( !mUseJson )
std::cout << info.toLocal8Bit().constData() << '\n';
else
{
if ( !mJsonLog.contains( QStringLiteral( "info" ) ) )
mJsonLog.insert( QStringLiteral( "info" ), QStringList() );
mJsonLog[ QStringLiteral( "info" )] = mJsonLog.value( QStringLiteral( "info" ) ).toStringList() << info;
}
QgsProcessingFeedback::pushConsoleInfo( info );
}
QVariantMap ConsoleFeedback::jsonLog() const
{
return mJsonLog;
}
void ConsoleFeedback::showTerminalProgress( double progress )
{
const int thisTick = std::min( 40, std::max( 0, static_cast<int>( progress * 0.4 ) ) );
if ( mTimer.elapsed() > 2000 )
{
// check for signals every 2s to allow for responsive cancellation
QCoreApplication::processEvents();
mTimer.restart();
}
// Have we started a new progress run?
if ( thisTick <= mLastTick )
return;
while ( thisTick > mLastTick )
{
++mLastTick;
if ( mLastTick % 4 == 0 )
fprintf( stdout, "%d", ( mLastTick / 4 ) * 10 );
else
fprintf( stdout, "." );
}
if ( thisTick == 40 )
fprintf( stdout, " - done.\n" );
else
fflush( stdout );
}
#ifdef WITH_BINDINGS
//! load Python support if possible
std::unique_ptr< QgsPythonUtils > QgsProcessingExec::loadPythonSupport()
{
QString pythonlibName( QStringLiteral( "qgispython" ) );
#if defined(Q_OS_UNIX) && !defined(Q_OS_ANDROID)
pythonlibName.prepend( QgsApplication::libraryPath() );
#endif
#ifdef __MINGW32__
pythonlibName.prepend( "lib" );
#endif
QString version = QStringLiteral( "%1.%2.%3" ).arg( Qgis::versionInt() / 10000 ).arg( Qgis::versionInt() / 100 % 100 ).arg( Qgis::versionInt() % 100 );
QgsDebugMsg( QStringLiteral( "load library %1 (%2)" ).arg( pythonlibName, version ) );
QLibrary pythonlib( pythonlibName, version );
// It's necessary to set these two load hints, otherwise Python library won't work correctly
// see http://lists.kde.org/?l=pykde&m=117190116820758&w=2
pythonlib.setLoadHints( QLibrary::ResolveAllSymbolsHint | QLibrary::ExportExternalSymbolsHint );
if ( !pythonlib.load() )
{
pythonlib.setFileName( pythonlibName );
if ( !pythonlib.load() )
{
std::cerr << QStringLiteral( "Couldn't load Python support library: %1\n" ).arg( pythonlib.errorString() ).toLocal8Bit().constData();
return nullptr;
}
}
typedef QgsPythonUtils*( *inst )();
inst pythonlib_inst = reinterpret_cast< inst >( cast_to_fptr( pythonlib.resolve( "instance" ) ) );
if ( !pythonlib_inst )
{
//using stderr on purpose because we want end users to see this [TS]
std::cerr << "Couldn't resolve Python support library's instance() symbol.\n";
return nullptr;
}
std::unique_ptr< QgsPythonUtils > pythonUtils( pythonlib_inst() );
if ( pythonUtils )
{
pythonUtils->initPython( nullptr, false );
}
return pythonUtils;
}
#endif
QgsProcessingExec::QgsProcessingExec()
{
}
int QgsProcessingExec::run( const QStringList &constArgs )
{
QStringList args = constArgs;
QObject::connect( QgsApplication::messageLog(), static_cast < void ( QgsMessageLog::* )( const QString &message, const QString &tag, Qgis::MessageLevel level ) >( &QgsMessageLog::messageReceived ), QgsApplication::instance(),
[ = ]( const QString & message, const QString &, Qgis::MessageLevel level )
{
if ( level == Qgis::MessageLevel::Critical )
{
if ( !message.contains( QLatin1String( "DeprecationWarning:" ) ) )
std::cerr << message.toLocal8Bit().constData() << '\n';
}
} );
const int jsonIndex = args.indexOf( QLatin1String( "--json" ) );
bool useJson = false;
if ( jsonIndex >= 0 )
{
useJson = true;
args.removeAt( jsonIndex );
}
const int verboseIndex = args.indexOf( QLatin1String( "--verbose" ) );
QgsProcessingContext::LogLevel logLevel = QgsProcessingContext::DefaultLevel;
if ( verboseIndex >= 0 )
{
logLevel = QgsProcessingContext::Verbose;
args.removeAt( verboseIndex );
}
const int noPythonIndex = args.indexOf( QLatin1String( "--no-python" ) );
if ( noPythonIndex >= 0 )
{
mSkipPython = true;
args.removeAt( noPythonIndex );
}
if ( args.size() == 1 )
{
showUsage( args.at( 0 ) );
return 0;
}
// core providers
QgsApplication::processingRegistry()->addProvider( new QgsNativeAlgorithms( QgsApplication::processingRegistry() ) );
#ifdef HAVE_3D
QgsApplication::processingRegistry()->addProvider( new Qgs3DAlgorithms( QgsApplication::processingRegistry() ) );
#endif
#ifdef WITH_BINDINGS
if ( !mSkipPython )
{
// give Python plugins a chance to load providers
mPythonUtils = loadPythonSupport();
if ( !mPythonUtils )
{
QCoreApplication::exit( 1 );
return 1;
}
}
#endif
const QString command = args.at( 1 );
if ( command == QLatin1String( "plugins" ) )
{
if ( args.size() == 2 || ( args.size() == 3 && args.at( 2 ) == QLatin1String( "list" ) ) )
{
loadPlugins();
listPlugins( useJson, true );
return 0;
}
else if ( args.size() == 4 && args.at( 2 ) == QLatin1String( "enable" ) )
{
return enablePlugin( args.at( 3 ), true );
}
else if ( args.size() == 4 && args.at( 2 ) == QLatin1String( "disable" ) )
{
return enablePlugin( args.at( 3 ), false );
}
std::cerr << QStringLiteral( "Command %1 not known!\n" ).arg( args.value( 2 ) ).toLocal8Bit().constData();
return 1;
}
else if ( command == QLatin1String( "list" ) )
{
loadPlugins();
listAlgorithms( useJson );
return 0;
}
else if ( command == QLatin1String( "--version" ) || command == QLatin1String( "-v" ) )
{
std::cout << QgsCommandLineUtils::allVersions().toStdString();
return 0;
}
else if ( command == QLatin1String( "--help" ) || command == QLatin1String( "-h" ) )
{
showUsage( args.at( 0 ) );
return 0;
}
else if ( command == QLatin1String( "help" ) )
{
if ( args.size() < 3 )
{
std::cerr << QStringLiteral( "Algorithm ID or model file not specified\n" ).toLocal8Bit().constData();
return 1;
}
loadPlugins();
const QString algId = args.at( 2 );
return showAlgorithmHelp( algId, useJson );
}
else if ( command == QLatin1String( "run" ) )
{
if ( args.size() < 3 )
{
std::cerr << QStringLiteral( "Algorithm ID or model file not specified\n" ).toLocal8Bit().constData();
return 1;
}
loadPlugins();
const QString algId = args.at( 2 );
// build parameter map
QString ellipsoid;
QgsUnitTypes::DistanceUnit distanceUnit = QgsUnitTypes::DistanceUnknownUnit;
QgsUnitTypes::AreaUnit areaUnit = QgsUnitTypes::AreaUnknownUnit;
QString projectPath;
QVariantMap params;
if ( args.size() == 4 && args.at( 3 ) == '-' )
{
// read arguments as JSON value from stdin
std::string stdinJson;
for ( std::string line; std::getline( std::cin, line ); )
{
stdinJson.append( line + '\n' );
}
QString error;
const QVariantMap json = QgsJsonUtils::parseJson( stdinJson, error ).toMap();
if ( !error.isEmpty() )
{
std::cerr << QStringLiteral( "Could not parse JSON parameters: %1" ).arg( error ).toLocal8Bit().constData() << std::endl;
return 1;
}
if ( !json.contains( QStringLiteral( "inputs" ) ) )
{
std::cerr << QStringLiteral( "JSON parameters object must contain an \"inputs\" key." ).toLocal8Bit().constData() << std::endl;
return 1;
}
params = json.value( QStringLiteral( "inputs" ) ).toMap();
// JSON format for input parameters implies JSON output format
useJson = true;
ellipsoid = json.value( QStringLiteral( "ellipsoid" ) ).toString();
projectPath = json.value( QStringLiteral( "project_path" ) ).toString();
if ( json.contains( "distance_units" ) )
{
bool ok = false;
const QString distanceUnitsString = json.value( QStringLiteral( "distance_units" ) ).toString();
distanceUnit = QgsUnitTypes::decodeDistanceUnit( distanceUnitsString, &ok );
if ( !ok )
{
std::cerr << QStringLiteral( "%1 is not a valid distance unit value." ).arg( distanceUnitsString ).toLocal8Bit().constData() << std::endl;
return 1;
}
}
if ( json.contains( "area_units" ) )
{
bool ok = false;
const QString areaUnitsString = json.value( QStringLiteral( "area_units" ) ).toString();
areaUnit = QgsUnitTypes::decodeAreaUnit( areaUnitsString, &ok );
if ( !ok )
{
std::cerr << QStringLiteral( "%1 is not a valid area unit value." ).arg( areaUnitsString ).toLocal8Bit().constData() << std::endl;
return 1;
}
}
}
else
{
int i = 3;
for ( ; i < args.count(); i++ )
{
QString arg = args.at( i );
if ( arg == QLatin1String( "--" ) )
{
break;
}
if ( arg.startsWith( QLatin1String( "--" ) ) )
arg = arg.mid( 2 );
const QStringList parts = arg.split( '=' );
if ( parts.count() >= 2 )
{
const QString name = parts.at( 0 );
if ( name.compare( QLatin1String( "ellipsoid" ), Qt::CaseInsensitive ) == 0 )
{
ellipsoid = parts.mid( 1 ).join( '=' );
}
else if ( name.compare( QLatin1String( "distance_units" ), Qt::CaseInsensitive ) == 0 )
{
distanceUnit = QgsUnitTypes::decodeDistanceUnit( parts.mid( 1 ).join( '=' ) );
}
else if ( name.compare( QLatin1String( "area_units" ), Qt::CaseInsensitive ) == 0 )
{
areaUnit = QgsUnitTypes::decodeAreaUnit( parts.mid( 1 ).join( '=' ) );
}
else if ( name.compare( QLatin1String( "project_path" ), Qt::CaseInsensitive ) == 0 )
{
projectPath = parts.mid( 1 ).join( '=' );
}
else
{
const QString value = parts.mid( 1 ).join( '=' );
if ( params.contains( name ) )
{
// parameter specified multiple times, store all of them in a list...
if ( params.value( name ).type() == QVariant::StringList )
{
// append to existing list
QStringList listValue = params.value( name ).toStringList();
listValue << value;
params.insert( name, listValue );
}
else
{
// upgrade previous value to list
QStringList listValue = QStringList() << params.value( name ).toString()
<< value;
params.insert( name, listValue );
}
}
else
{
params.insert( name, value );
}
}
}
else
{
std::cerr << QStringLiteral( "Invalid parameter value %1. Parameter values must be entered after \"--\" e.g.\n Example:\n qgis_process run algorithm_name -- PARAM1=VALUE PARAM2=42\"\n" ).arg( arg ).toLocal8Bit().constData();
return 1;
}
}
// After '--' we only have params
for ( ; i < args.count(); i++ )
{
const QString arg = args.at( i );
const QStringList parts = arg.split( '=' );
if ( parts.count() >= 2 )
{
const QString name = parts.first();
const QString value = parts.mid( 1 ).join( '=' );
if ( params.contains( name ) )
{
// parameter specified multiple times, store all of them in a list...
if ( params.value( name ).type() == QVariant::StringList )
{
// append to existing list
QStringList listValue = params.value( name ).toStringList();
listValue << value;
params.insert( name, listValue );
}
else
{
// upgrade previous value to list
QStringList listValue = QStringList() << params.value( name ).toString()
<< value;
params.insert( name, listValue );
}
}
else
{
params.insert( name, value );
}
}
}
}
return execute( algId, params, ellipsoid, distanceUnit, areaUnit, logLevel, useJson, projectPath );
}
else
{
std::cerr << QStringLiteral( "Command %1 not known!\n" ).arg( command ).toLocal8Bit().constData();
}
return 1;
}
void QgsProcessingExec::showUsage( const QString &appName )
{
QStringList msg;
msg << "QGIS Processing Executor - " << VERSION << " '" << RELEASE_NAME << "' ("
<< Qgis::version() << ")\n"
<< "Usage: " << appName << " [--help] [--version] [--json] [--verbose] [--no-python] [command] [algorithm id, path to model file, or path to Python script] [parameters]\n"
<< "\nOptions:\n"
<< "\t--help or -h\t\tOutput the help\n"
<< "\t--version or -v\t\tOutput all versions related to QGIS Process\n"
<< "\t--json\t\tOutput results as JSON objects\n"
<< "\t--verbose\tOutput verbose logs\n"
<< "\t--no-python\tDisable Python support (results in faster startup)"
<< "\nAvailable commands:\n"
<< "\tplugins\t\tlist available and active plugins\n"
<< "\tplugins enable\tenables an installed plugin. The plugin name must be specified, e.g. \"plugins enable cartography_tools\"\n"
<< "\tplugins disable\tdisables an installed plugin. The plugin name must be specified, e.g. \"plugins disable cartography_tools\"\n"
<< "\tlist\t\tlist all available processing algorithms\n"
<< "\thelp\t\tshow help for an algorithm. The algorithm id or a path to a model file must be specified.\n"
<< "\trun\t\truns an algorithm. The algorithm id or a path to a model file and parameter values must be specified. Parameter values are specified after -- with PARAMETER=VALUE syntax. Ordered list values for a parameter can be created by specifying the parameter multiple times, e.g. --LAYERS=layer1.shp --LAYERS=layer2.shp\n"
<< "\t\t\tAlternatively, a '-' character in place of the parameters argument indicates that the parameters should be read from STDIN as a JSON object. The JSON should be structured as a map containing at least the \"inputs\" key specifying a map of input parameter values. This implies the --json option for output as a JSON object.\n"
<< "\t\t\tIf required, the ellipsoid to use for distance and area calculations can be specified via the \"--ELLIPSOID=name\" argument.\n"
<< "\t\t\tIf required, an existing QGIS project to use during the algorithm execution can be specified via the \"--PROJECT_PATH=path\" argument.\n"
<< "\t\t\tWhen passing parameters as a JSON object from STDIN, these extra arguments can be provided as an \"ellipsoid\" and a \"project_path\" key respectively.\n";
std::cout << msg.join( QString() ).toLocal8Bit().constData();
}
void QgsProcessingExec::loadPlugins()
{
#ifdef WITH_BINDINGS
if ( !mPythonUtils )
return;
QgsSettings settings;
// load plugins
const QStringList plugins = mPythonUtils->pluginList();
for ( const QString &plugin : plugins )
{
if ( plugin == QLatin1String( "processing" ) || ( mPythonUtils->isPluginEnabled( plugin ) && mPythonUtils->pluginHasProcessingProvider( plugin ) ) )
{
if ( !mPythonUtils->loadPlugin( plugin ) )
{
std::cerr << "error loading plugin: " << plugin.toLocal8Bit().constData() << "\n\n";
}
else if ( !mPythonUtils->startProcessingPlugin( plugin ) )
{
std::cerr << "error starting plugin: " << plugin.toLocal8Bit().constData() << "\n\n";
}
}
}
#endif
}
void QgsProcessingExec::listAlgorithms( bool useJson )
{
QVariantMap json;
if ( !useJson )
{
std::cout << "Available algorithms\n\n";
}
else
{
addVersionInformation( json );
}
const QList<QgsProcessingProvider *> providers = QgsApplication::processingRegistry()->providers();
QVariantMap jsonProviders;
for ( QgsProcessingProvider *provider : providers )
{
QVariantMap providerJson;
if ( !useJson )
{
std::cout << provider->name().toLocal8Bit().constData() << "\n";
}
else
{
addProviderInformation( providerJson, provider );
}
QVariantMap algorithmsJson;
const QList<const QgsProcessingAlgorithm *> algorithms = provider->algorithms();
for ( const QgsProcessingAlgorithm *algorithm : algorithms )
{
if ( algorithm->flags() & QgsProcessingAlgorithm::FlagNotAvailableInStandaloneTool )
continue;
if ( !useJson )
{
if ( algorithm->flags() & QgsProcessingAlgorithm::FlagDeprecated )
continue;
std::cout << "\t" << algorithm->id().toLocal8Bit().constData() << "\t" << algorithm->displayName().toLocal8Bit().constData() << "\n";
}
else
{
QVariantMap algorithmJson;
addAlgorithmInformation( algorithmJson, algorithm );
algorithmsJson.insert( algorithm->id(), algorithmJson );
}
}
if ( !useJson )
{
std::cout << "\n";
}
else
{
providerJson.insert( QStringLiteral( "algorithms" ), algorithmsJson );
jsonProviders.insert( provider->id(), providerJson );
}
}
if ( useJson )
{
json.insert( QStringLiteral( "providers" ), jsonProviders );
std::cout << QgsJsonUtils::jsonFromVariant( json ).dump( 2 );
}
}
void QgsProcessingExec::listPlugins( bool useJson, bool showLoaded )
{
QVariantMap json;
if ( !useJson )
{
std::cout << "Available plugins\n";
if ( showLoaded )
std::cout << "(* indicates loaded plugins which implement Processing providers)\n\n";
else
std::cout << "(* indicates enabled plugins which implement Processing providers)\n\n";
}
else
{
addVersionInformation( json );
}
#ifdef WITH_BINDINGS
QVariantMap jsonPlugins;
if ( mPythonUtils )
{
const QStringList plugins = mPythonUtils->pluginList();
for ( const QString &plugin : plugins )
{
if ( !mPythonUtils->pluginHasProcessingProvider( plugin ) )
continue;
if ( !useJson )
{
if ( showLoaded ? mPythonUtils->isPluginLoaded( plugin ) : mPythonUtils->isPluginEnabled( plugin ) )
std::cout << "* ";
else
std::cout << " ";
std::cout << plugin.toLocal8Bit().constData() << "\n";
}
else
{
QVariantMap jsonPlugin;
jsonPlugin.insert( QStringLiteral( "loaded" ), showLoaded ? mPythonUtils->isPluginLoaded( plugin ) : mPythonUtils->isPluginEnabled( plugin ) );
jsonPlugins.insert( plugin, jsonPlugin );
}
}
}
if ( useJson )
{
json.insert( QStringLiteral( "plugins" ), jsonPlugins );
std::cout << QgsJsonUtils::jsonFromVariant( json ).dump( 2 );
}
#endif
}
int QgsProcessingExec::enablePlugin( const QString &name, bool enabled )
{
if ( enabled )
std::cout << QStringLiteral( "Enabling plugin: \"%1\"\n" ).arg( name ).toLocal8Bit().constData();
else
std::cout << QStringLiteral( "Disabling plugin: \"%1\"\n" ).arg( name ).toLocal8Bit().constData();
#ifdef WITH_BINDINGS
if ( !mPythonUtils )
{
std::cerr << "\nPython not available!";
return 1;
}
const QStringList plugins = mPythonUtils->pluginList();
if ( !plugins.contains( name ) )
{
std::cerr << "\nNo matching plugins found!\n\n";
listPlugins( false, false );
return 1;
}
if ( enabled && !mPythonUtils->pluginHasProcessingProvider( name ) )
std::cout << "WARNING: Plugin does not report having a Processing provider, but enabling anyway.\n\n"
"Either the plugin does not support Processing, or the plugin's metadata is incorrect.\n"
"See https://docs.qgis.org/latest/en/docs/pyqgis_developer_cookbook/processing.html#updating-a-plugin for\n"
"instructions on how to fix the plugin metadata to remove this warning.\n\n";
if ( enabled && mPythonUtils->isPluginEnabled( name ) )
{
std::cerr << "Plugin is already enabled!\n";
return 1;
}
else if ( !enabled && !mPythonUtils->isPluginEnabled( name ) )
{
std::cerr << "Plugin is already disabled!\n";
return 1;
}
QgsSettings settings;
if ( enabled )
{
mPythonUtils->loadPlugin( name );
mPythonUtils->startProcessingPlugin( name );
const QString pluginName = mPythonUtils->getPluginMetadata( name, QStringLiteral( "name" ) );
settings.setValue( "/PythonPlugins/" + name, true );
std::cout << QStringLiteral( "Enabled %1 (%2)\n\n" ).arg( name, pluginName ).toLocal8Bit().constData();
settings.remove( "/PythonPlugins/watchDog/" + name );
}
else
{
if ( mPythonUtils->isPluginLoaded( name ) )
mPythonUtils->unloadPlugin( name );
settings.setValue( "/PythonPlugins/" + name, false );
std::cout << QStringLiteral( "Disabled %1\n\n" ).arg( name ).toLocal8Bit().constData();
}
listPlugins( false, false );
return 0;
#else
std::cerr << "No Python support\n";
return 1;
#endif
}
int QgsProcessingExec::showAlgorithmHelp( const QString &inputId, bool useJson )
{
QString id = inputId;
std::unique_ptr< QgsProcessingModelAlgorithm > model;
const QgsProcessingAlgorithm *alg = nullptr;
if ( QFile::exists( id ) && QFileInfo( id ).suffix() == QLatin1String( "model3" ) )
{
model = std::make_unique< QgsProcessingModelAlgorithm >();
if ( !model->fromFile( id ) )
{
std::cerr << QStringLiteral( "File %1 is not a valid Processing model!\n" ).arg( id ).toLocal8Bit().constData();
return 1;
}
alg = model.get();
}
#ifdef WITH_BINDINGS
else if ( mPythonUtils && QFile::exists( id ) && QFileInfo( id ).suffix() == QLatin1String( "py" ) )
{
QString res;
if ( !mPythonUtils->evalString( QStringLiteral( "qgis.utils.import_script_algorithm(\"%1\")" ).arg( id ), res ) || res.isEmpty() )
{
std::cerr << QStringLiteral( "File %1 is not a valid Processing script!\n" ).arg( id ).toLocal8Bit().constData();
return 1;
}
id = res;
}
#endif
if ( !alg )
{
alg = QgsApplication::processingRegistry()->algorithmById( id );
if ( ! alg )
{
std::cerr << QStringLiteral( "Algorithm %1 not found!\n" ).arg( id ).toLocal8Bit().constData();
return 1;
}
}
QVariantMap json;
if ( !useJson )
{
std::cout << QStringLiteral( "%1 (%2)\n" ).arg( alg->displayName(), alg->id() ).toLocal8Bit().constData();
std::cout << "\n----------------\n";
std::cout << "Description\n";
std::cout << "----------------\n";
if ( const QgsProcessingModelAlgorithm *model = dynamic_cast< const QgsProcessingModelAlgorithm * >( alg ) )
{
// show finer help content for models
const QVariantMap help = model->helpContent();
std::cout << help.value( QStringLiteral( "ALG_DESC" ) ).toString().toLocal8Bit().constData() << '\n';
if ( !help.value( QStringLiteral( "ALG_CREATOR" ) ).toString().isEmpty() ||
!help.value( QStringLiteral( "ALG_VERSION" ) ).toString().isEmpty() )
std::cout << '\n';
if ( !help.value( QStringLiteral( "ALG_CREATOR" ) ).toString().isEmpty() )
std::cout << "Algorithm author:\t" << help.value( QStringLiteral( "ALG_CREATOR" ) ).toString().toLocal8Bit().constData() << '\n';
if ( !help.value( QStringLiteral( "ALG_VERSION" ) ).toString().isEmpty() )
std::cout << "Algorithm version:\t" << help.value( QStringLiteral( "ALG_VERSION" ) ).toString().toLocal8Bit().constData() << '\n';
if ( !help.value( QStringLiteral( "EXAMPLES" ) ).toString().isEmpty() )
{
std::cout << "\n----------------\n";
std::cout << "Examples\n";
std::cout << "----------------\n";
std::cout << help.value( QStringLiteral( "EXAMPLES" ) ).toString().toLocal8Bit().constData() << '\n';
}
}
else
{
if ( !alg->shortDescription().isEmpty() )
std::cout << alg->shortDescription().toLocal8Bit().constData() << '\n';
if ( !alg->shortHelpString().isEmpty() && alg->shortHelpString() != alg->shortDescription() )
std::cout << alg->shortHelpString().toLocal8Bit().constData() << '\n';
}
std::cout << "\n----------------\n";
std::cout << "Arguments\n";
std::cout << "----------------\n\n";
}
else
{
addVersionInformation( json );
QVariantMap algorithmDetails;
algorithmDetails.insert( QStringLiteral( "id" ), alg->id() );
addAlgorithmInformation( algorithmDetails, alg );
json.insert( QStringLiteral( "algorithm_details" ), algorithmDetails );
QVariantMap providerJson;
addProviderInformation( providerJson, alg->provider() );
json.insert( QStringLiteral( "provider_details" ), providerJson );
}
QgsProcessingContext context;
QVariantMap parametersJson;
const QgsProcessingParameterDefinitions defs = alg->parameterDefinitions();
for ( const QgsProcessingParameterDefinition *p : defs )
{
if ( p->flags() & QgsProcessingParameterDefinition::FlagHidden )
continue;
QVariantMap parameterJson;
if ( !useJson )
{
QString line = QStringLiteral( "%1: %2" ).arg( p->name(), p->description() );
if ( p->flags() & QgsProcessingParameterDefinition::FlagOptional )
line += QLatin1String( " (optional)" );
std::cout << QStringLiteral( "%1\n" ).arg( line ).toLocal8Bit().constData();
if ( p->defaultValue().isValid() )
{
bool ok = false;
std::cout << QStringLiteral( "\tDefault value:\t%1\n" ).arg( p->valueAsString( p->defaultValue(), context, ok ) ).toLocal8Bit().constData();
}
}
else
{
parameterJson.insert( QStringLiteral( "name" ), p->name() );
parameterJson.insert( QStringLiteral( "description" ), p->description() );
if ( const QgsProcessingParameterType *type = QgsApplication::processingRegistry()->parameterType( p->type() ) )
{
QVariantMap typeDetails;
typeDetails.insert( QStringLiteral( "id" ), type->id() );
typeDetails.insert( QStringLiteral( "name" ), type->name() );
typeDetails.insert( QStringLiteral( "description" ), type->description() );
typeDetails.insert( QStringLiteral( "metadata" ), type->metadata() );
typeDetails.insert( QStringLiteral( "acceptable_values" ), type->acceptedStringValues() );
parameterJson.insert( QStringLiteral( "type" ), typeDetails );
}
else
{
parameterJson.insert( QStringLiteral( "type" ), p->type() );
}
parameterJson.insert( QStringLiteral( "is_destination" ), p->isDestination() );
parameterJson.insert( QStringLiteral( "default_value" ), p->defaultValue() );
parameterJson.insert( QStringLiteral( "optional" ), bool( p->flags() & QgsProcessingParameterDefinition::FlagOptional ) );
parameterJson.insert( QStringLiteral( "is_advanced" ), bool( p->flags() & QgsProcessingParameterDefinition::FlagAdvanced ) );
parameterJson.insert( QStringLiteral( "raw_definition" ), p->toVariantMap() );
}
if ( ! p->help().isEmpty() )
{
if ( !useJson )
std::cout << QStringLiteral( "\t%1\n" ).arg( p->help() ).toLocal8Bit().constData();
else
parameterJson.insert( QStringLiteral( "help" ), p->help() );
}
if ( !useJson )
std::cout << QStringLiteral( "\tArgument type:\t%1\n" ).arg( p->type() ).toLocal8Bit().constData();
if ( p->type() == QgsProcessingParameterEnum::typeName() )
{
const QgsProcessingParameterEnum *enumParam = static_cast< const QgsProcessingParameterEnum * >( p );
QStringList options;
QVariantMap jsonOptions;
for ( int i = 0; i < enumParam->options().count(); ++i )
{
options << QStringLiteral( "\t\t- %1: %2" ).arg( i ).arg( enumParam->options().at( i ) );
jsonOptions.insert( QString::number( i ), enumParam->options().at( i ) );
}
if ( !useJson )
std::cout << QStringLiteral( "\tAvailable values:\n%1\n" ).arg( options.join( '\n' ) ).toLocal8Bit().constData();
else
parameterJson.insert( QStringLiteral( "available_options" ), jsonOptions );
}
// acceptable command line values
if ( !useJson )
{
if ( const QgsProcessingParameterType *type = QgsApplication::processingRegistry()->parameterType( p->type() ) )
{
const QStringList values = type->acceptedStringValues();
if ( !values.isEmpty() )
{
std::cout << "\tAcceptable values:\n";
for ( const QString &val : values )
{
std::cout << QStringLiteral( "\t\t- %1" ).arg( val ).toLocal8Bit().constData() << "\n";
}
}
}
}
parametersJson.insert( p->name(), parameterJson );
}
QVariantMap outputsJson;
if ( !useJson )
{
std::cout << "\n----------------\n";
std::cout << "Outputs\n";
std::cout << "----------------\n\n";
}
const QgsProcessingOutputDefinitions outputs = alg->outputDefinitions();
for ( const QgsProcessingOutputDefinition *o : outputs )
{
QVariantMap outputJson;
if ( !useJson )
{
std::cout << QStringLiteral( "%1: <%2>\n" ).arg( o->name(), o->type() ).toLocal8Bit().constData();
if ( !o->description().isEmpty() )
std::cout << "\t" << o->description().toLocal8Bit().constData() << '\n';
}
else
{
outputJson.insert( QStringLiteral( "description" ), o->description() );
outputJson.insert( QStringLiteral( "type" ), o->type() );
outputsJson.insert( o->name(), outputJson );
}
}
if ( !useJson )
{
std::cout << "\n\n";
}
else
{
json.insert( QStringLiteral( "parameters" ), parametersJson );
json.insert( QStringLiteral( "outputs" ), outputsJson );
std::cout << QgsJsonUtils::jsonFromVariant( json ).dump( 2 );
}
return 0;
}