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798 lines
23 KiB
798 lines
23 KiB
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2020 Jon Evans <jon@craftyjon.com>
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* Copyright (C) 2020-2021 KiCad Developers, see AUTHORS.txt for contributors.
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*
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* This program is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <algorithm>
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#include <fstream>
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#include <iomanip>
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#include <utility>
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#include <sstream>
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#include <locale_io.h>
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#include <gal/color4d.h>
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#include <settings/json_settings.h>
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#include <settings/json_settings_internals.h>
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#include <settings/nested_settings.h>
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#include <settings/parameters.h>
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#include <wx/config.h>
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#include <wx/debug.h>
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#include <wx/fileconf.h>
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#include <wx/filename.h>
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#include <wx/log.h>
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#include <wx/stdstream.h>
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#include <wx/wfstream.h>
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const wxChar* const traceSettings = wxT( "KICAD_SETTINGS" );
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nlohmann::json::json_pointer JSON_SETTINGS_INTERNALS::PointerFromString( std::string aPath )
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{
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std::replace( aPath.begin(), aPath.end(), '.', '/' );
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aPath.insert( 0, "/" );
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nlohmann::json::json_pointer p;
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try
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{
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p = nlohmann::json::json_pointer( aPath );
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}
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catch( ... )
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{
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wxASSERT_MSG( false, wxT( "Invalid pointer path in PointerFromString!" ) );
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}
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return p;
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}
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JSON_SETTINGS::JSON_SETTINGS( const wxString& aFilename, SETTINGS_LOC aLocation,
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int aSchemaVersion, bool aCreateIfMissing, bool aCreateIfDefault,
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bool aWriteFile ) :
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m_filename( aFilename ),
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m_legacy_filename( "" ),
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m_location( aLocation ),
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m_createIfMissing( aCreateIfMissing ),
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m_createIfDefault( aCreateIfDefault ),
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m_writeFile( aWriteFile ),
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m_deleteLegacyAfterMigration( true ),
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m_resetParamsIfMissing( true ),
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m_schemaVersion( aSchemaVersion ),
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m_manager( nullptr )
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{
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m_internals = std::make_unique<JSON_SETTINGS_INTERNALS>();
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try
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{
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m_internals->SetFromString( "meta.filename", GetFullFilename() );
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}
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catch( ... )
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{
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wxLogTrace( traceSettings, wxT( "Error: Could not create filename field for %s" ),
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GetFullFilename() );
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}
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m_params.emplace_back(
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new PARAM<int>( "meta.version", &m_schemaVersion, m_schemaVersion, true ) );
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}
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JSON_SETTINGS::~JSON_SETTINGS()
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{
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for( auto param: m_params )
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delete param;
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m_params.clear();
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}
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wxString JSON_SETTINGS::GetFullFilename() const
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{
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return wxString( m_filename + "." + getFileExt() );
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}
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nlohmann::json& JSON_SETTINGS::At( const std::string& aPath )
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{
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return m_internals->At( aPath );
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}
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bool JSON_SETTINGS::Contains( const std::string& aPath ) const
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{
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return m_internals->contains( JSON_SETTINGS_INTERNALS::PointerFromString( aPath ) );
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}
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size_t JSON_SETTINGS::Count( const std::string& aPath ) const
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{
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return m_internals->count( JSON_SETTINGS_INTERNALS::PointerFromString( aPath ) );
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}
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JSON_SETTINGS_INTERNALS* JSON_SETTINGS::Internals()
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{
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return m_internals.get();
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}
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void JSON_SETTINGS::Load()
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{
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for( auto param : m_params )
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{
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try
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{
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param->Load( this, m_resetParamsIfMissing );
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}
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catch( ... )
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{
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// Skip unreadable parameters in file
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wxLogTrace( traceSettings, wxT( "param '%s' load err" ), param->GetJsonPath().c_str() );
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}
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}
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}
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bool JSON_SETTINGS::LoadFromFile( const wxString& aDirectory )
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{
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// First, load all params to default values
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m_internals->clear();
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Load();
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bool success = true;
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bool migrated = false;
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bool legacy_migrated = false;
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LOCALE_IO locale;
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auto migrateFromLegacy = [&] ( wxFileName& aPath ) {
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// Backup and restore during migration so that the original can be mutated if convenient
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bool backed_up = false;
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wxFileName temp;
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if( aPath.IsDirWritable() )
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{
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temp.AssignTempFileName( aPath.GetFullPath() );
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if( !wxCopyFile( aPath.GetFullPath(), temp.GetFullPath() ) )
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{
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wxLogTrace( traceSettings, wxT( "%s: could not create temp file for migration" ),
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GetFullFilename() );
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}
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else
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backed_up = true;
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}
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// Silence popups if legacy file is read-only
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wxLogNull doNotLog;
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wxConfigBase::DontCreateOnDemand();
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auto cfg = std::make_unique<wxFileConfig>( wxT( "" ), wxT( "" ), aPath.GetFullPath() );
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// If migrate fails or is not implemented, fall back to built-in defaults that were
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// already loaded above
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if( !MigrateFromLegacy( cfg.get() ) )
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{
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wxLogTrace( traceSettings,
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wxT( "%s: migrated; not all settings were found in legacy file" ),
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GetFullFilename() );
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}
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else
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{
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wxLogTrace( traceSettings, wxT( "%s: migrated from legacy format" ), GetFullFilename() );
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}
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if( backed_up )
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{
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cfg.reset();
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if( !wxCopyFile( temp.GetFullPath(), aPath.GetFullPath() ) )
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{
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wxLogTrace( traceSettings,
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wxT( "migrate; copy temp file %s to %s failed" ),
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temp.GetFullPath(), aPath.GetFullPath() );
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}
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if( !wxRemoveFile( temp.GetFullPath() ) )
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{
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wxLogTrace( traceSettings,
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wxT( "migrate; failed to remove temp file %s" ),
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temp.GetFullPath() );
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}
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}
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// Either way, we want to clean up the old file afterwards
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legacy_migrated = true;
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};
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wxFileName path;
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if( aDirectory.empty() )
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{
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path.Assign( m_filename );
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path.SetExt( getFileExt() );
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}
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else
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{
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wxString dir( aDirectory );
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path.Assign( dir, m_filename, getFileExt() );
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}
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if( !path.Exists() )
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{
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// Case 1: legacy migration, no .json extension yet
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path.SetExt( getLegacyFileExt() );
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if( path.Exists() )
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{
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migrateFromLegacy( path );
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}
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// Case 2: legacy filename is different from new one
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else if( !m_legacy_filename.empty() )
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{
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path.SetName( m_legacy_filename );
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if( path.Exists() )
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migrateFromLegacy( path );
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}
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else
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{
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success = false;
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}
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}
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else
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{
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if( !path.IsFileWritable() )
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m_writeFile = false;
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try
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{
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wxFFileInputStream fp( path.GetFullPath(), wxT( "rt" ) );
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wxStdInputStream fstream( fp );
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if( fp.IsOk() )
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{
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*static_cast<nlohmann::json*>( m_internals.get() ) =
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nlohmann::json::parse( fstream, nullptr,
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/* allow_exceptions = */ true,
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/* ignore_comments = */ true );
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// If parse succeeds, check if schema migration is required
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int filever = -1;
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try
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{
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filever = m_internals->Get<int>( "meta.version" );
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}
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catch( ... )
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{
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wxLogTrace( traceSettings, wxT( "%s: file version could not be read!" ),
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GetFullFilename() );
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success = false;
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}
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if( filever >= 0 && filever < m_schemaVersion )
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{
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wxLogTrace( traceSettings, wxT( "%s: attempting migration from version %d to %d" ),
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GetFullFilename(), filever, m_schemaVersion );
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if( Migrate() )
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{
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migrated = true;
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}
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else
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{
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wxLogTrace( traceSettings, wxT( "%s: migration failed!" ), GetFullFilename() );
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}
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}
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else if( filever > m_schemaVersion )
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{
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wxLogTrace( traceSettings,
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wxT( "%s: warning: file version %d is newer than latest (%d)" ),
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GetFullFilename(), filever, m_schemaVersion );
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}
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}
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else
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{
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wxLogTrace( traceSettings, wxT( "%s exists but can't be opened for read" ),
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GetFullFilename() );
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}
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}
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catch( nlohmann::json::parse_error& error )
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{
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wxLogTrace( traceSettings, wxT( "Json parse error reading %s: %s" ),
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path.GetFullPath(), error.what() );
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wxLogTrace( traceSettings, wxT( "Attempting migration in case file is in legacy format" ) );
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migrateFromLegacy( path );
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}
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}
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// Now that we have new data in the JSON structure, load the params again
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Load();
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// And finally load any nested settings
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for( auto settings : m_nested_settings )
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settings->LoadFromFile();
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wxLogTrace( traceSettings, wxT( "Loaded <%s> with schema %d" ), GetFullFilename(), m_schemaVersion );
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// If we migrated, clean up the legacy file (with no extension)
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if( legacy_migrated || migrated )
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{
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if( legacy_migrated && m_deleteLegacyAfterMigration && !wxRemoveFile( path.GetFullPath() ) )
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{
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wxLogTrace( traceSettings, wxT( "Warning: could not remove legacy file %s" ),
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path.GetFullPath() );
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}
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// And write-out immediately so that we don't lose data if the program later crashes.
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if( m_deleteLegacyAfterMigration )
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SaveToFile( aDirectory, true );
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}
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return success;
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}
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bool JSON_SETTINGS::Store()
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{
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bool modified = false;
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for( auto param : m_params )
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{
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modified |= !param->MatchesFile( this );
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param->Store( this );
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}
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return modified;
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}
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void JSON_SETTINGS::ResetToDefaults()
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{
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for( auto param : m_params )
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param->SetDefault();
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}
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bool JSON_SETTINGS::SaveToFile( const wxString& aDirectory, bool aForce )
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{
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if( !m_writeFile )
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return false;
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// Default PROJECT won't have a filename set
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if( m_filename.IsEmpty() )
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return false;
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wxFileName path;
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if( aDirectory.empty() )
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{
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path.Assign( m_filename );
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path.SetExt( getFileExt() );
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}
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else
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{
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wxString dir( aDirectory );
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path.Assign( dir, m_filename, getFileExt() );
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}
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if( !m_createIfMissing && !path.FileExists() )
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{
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wxLogTrace( traceSettings,
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wxT( "File for %s doesn't exist and m_createIfMissing == false; not saving" ),
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GetFullFilename() );
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return false;
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}
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// Ensure the path exists, and create it if not.
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if( !path.DirExists() && !path.Mkdir() )
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{
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wxLogTrace( traceSettings, wxT( "Warning: could not create path %s, can't save %s" ),
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path.GetPath(), GetFullFilename() );
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return false;
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}
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if( ( path.FileExists() && !path.IsFileWritable() ) ||
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( !path.FileExists() && !path.IsDirWritable() ) )
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{
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wxLogTrace( traceSettings, wxT( "File for %s is read-only; not saving" ), GetFullFilename() );
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return false;
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}
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bool modified = false;
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for( auto settings : m_nested_settings )
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modified |= settings->SaveToFile();
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modified |= Store();
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if( !modified && !aForce && path.FileExists() )
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{
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wxLogTrace( traceSettings, wxT( "%s contents not modified, skipping save" ), GetFullFilename() );
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return false;
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}
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else if( !modified && !aForce && !m_createIfDefault )
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{
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wxLogTrace( traceSettings,
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wxT( "%s contents still default and m_createIfDefault == false; not saving" ),
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GetFullFilename() );
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return false;
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}
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wxLogTrace( traceSettings, wxT( "Saving %s" ), GetFullFilename() );
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LOCALE_IO dummy;
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bool success = true;
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try
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{
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std::stringstream buffer;
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buffer << std::setw( 2 ) << *m_internals << std::endl;
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wxFFileOutputStream fileStream( path.GetFullPath(), "wb" );
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if( !fileStream.IsOk()
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|| !fileStream.WriteAll( buffer.str().c_str(), buffer.str().size() ) )
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{
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wxLogTrace( traceSettings, wxT( "Warning: could not save %s" ), GetFullFilename() );
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success = false;
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}
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}
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catch( nlohmann::json::exception& error )
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{
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wxLogTrace( traceSettings, wxT( "Catch error: could not save %s. Json error %s" ),
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GetFullFilename(), error.what() );
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success = false;
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}
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catch( ... )
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{
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wxLogTrace( traceSettings, wxT( "Error: could not save %s." ) );
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success = false;
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}
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return success;
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}
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OPT<nlohmann::json> JSON_SETTINGS::GetJson( const std::string& aPath ) const
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{
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nlohmann::json::json_pointer ptr = m_internals->PointerFromString( aPath );
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if( m_internals->contains( ptr ) )
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{
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try
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{
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return OPT<nlohmann::json>{ m_internals->at( ptr ) };
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}
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catch( ... )
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{
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}
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}
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return OPT<nlohmann::json>{};
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}
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template<typename ValueType>
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OPT<ValueType> JSON_SETTINGS::Get( const std::string& aPath ) const
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{
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if( OPT<nlohmann::json> ret = GetJson( aPath ) )
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{
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try
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{
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return ret->get<ValueType>();
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}
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catch( ... )
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{
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}
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}
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return NULLOPT;
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}
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// Instantiate all required templates here to allow reducing scope of json.hpp
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template OPT<bool> JSON_SETTINGS::Get<bool>( const std::string& aPath ) const;
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template OPT<double> JSON_SETTINGS::Get<double>( const std::string& aPath ) const;
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template OPT<float> JSON_SETTINGS::Get<float>( const std::string& aPath ) const;
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template OPT<int> JSON_SETTINGS::Get<int>( const std::string& aPath ) const;
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template OPT<unsigned int> JSON_SETTINGS::Get<unsigned int>( const std::string& aPath ) const;
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template OPT<unsigned long long> JSON_SETTINGS::Get<unsigned long long>( const std::string& aPath ) const;
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template OPT<std::string> JSON_SETTINGS::Get<std::string>( const std::string& aPath ) const;
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template OPT<nlohmann::json> JSON_SETTINGS::Get<nlohmann::json>( const std::string& aPath ) const;
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template OPT<KIGFX::COLOR4D> JSON_SETTINGS::Get<KIGFX::COLOR4D>( const std::string& aPath ) const;
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template<typename ValueType>
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void JSON_SETTINGS::Set( const std::string& aPath, ValueType aVal )
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{
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m_internals->SetFromString( aPath, aVal );
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}
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// Instantiate all required templates here to allow reducing scope of json.hpp
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template void JSON_SETTINGS::Set<bool>( const std::string& aPath, bool aValue );
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template void JSON_SETTINGS::Set<double>( const std::string& aPath, double aValue );
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template void JSON_SETTINGS::Set<float>( const std::string& aPath, float aValue );
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template void JSON_SETTINGS::Set<int>( const std::string& aPath, int aValue );
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template void JSON_SETTINGS::Set<unsigned int>( const std::string& aPath, unsigned int aValue );
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template void JSON_SETTINGS::Set<unsigned long long>( const std::string& aPath, unsigned long long aValue );
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template void JSON_SETTINGS::Set<const char*>( const std::string& aPath, const char* aValue );
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template void JSON_SETTINGS::Set<std::string>( const std::string& aPath, std::string aValue );
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template void JSON_SETTINGS::Set<nlohmann::json>( const std::string& aPath, nlohmann::json aValue );
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template void JSON_SETTINGS::Set<KIGFX::COLOR4D>( const std::string& aPath, KIGFX::COLOR4D aValue );
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void JSON_SETTINGS::registerMigration( int aOldSchemaVersion, int aNewSchemaVersion,
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std::function<bool()> aMigrator )
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{
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wxASSERT( aNewSchemaVersion > aOldSchemaVersion );
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wxASSERT( aNewSchemaVersion <= m_schemaVersion );
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m_migrators[aOldSchemaVersion] = std::make_pair( aNewSchemaVersion, aMigrator );
|
|
}
|
|
|
|
|
|
bool JSON_SETTINGS::Migrate()
|
|
{
|
|
int filever = m_internals->Get<int>( "meta.version" );
|
|
|
|
while( filever < m_schemaVersion )
|
|
{
|
|
if( !m_migrators.count( filever ) )
|
|
{
|
|
wxLogTrace( traceSettings, wxT( "Migrator missing for %s version %d!" ),
|
|
typeid( *this ).name(), filever );
|
|
return false;
|
|
}
|
|
|
|
std::pair<int, std::function<bool()>> pair = m_migrators.at( filever );
|
|
|
|
if( pair.second() )
|
|
{
|
|
wxLogTrace( traceSettings, wxT( "Migrated %s from %d to %d" ), typeid( *this ).name(),
|
|
filever, pair.first );
|
|
filever = pair.first;
|
|
m_internals->At( "meta.version" ) = filever;
|
|
}
|
|
else
|
|
{
|
|
wxLogTrace( traceSettings, wxT( "Migration failed for %s from %d to %d" ),
|
|
typeid( *this ).name(), filever, pair.first );
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
bool JSON_SETTINGS::MigrateFromLegacy( wxConfigBase* aLegacyConfig )
|
|
{
|
|
wxLogTrace( traceSettings,
|
|
wxT( "MigrateFromLegacy() not implemented for %s" ), typeid( *this ).name() );
|
|
return false;
|
|
}
|
|
|
|
|
|
bool JSON_SETTINGS::SetIfPresent( const nlohmann::json& aObj, const std::string& aPath,
|
|
wxString& aTarget )
|
|
{
|
|
nlohmann::json::json_pointer ptr = JSON_SETTINGS_INTERNALS::PointerFromString( aPath );
|
|
|
|
if( aObj.contains( ptr ) && aObj.at( ptr ).is_string() )
|
|
{
|
|
aTarget = aObj.at( ptr ).get<wxString>();
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
bool JSON_SETTINGS::SetIfPresent( const nlohmann::json& aObj, const std::string& aPath,
|
|
bool& aTarget )
|
|
{
|
|
nlohmann::json::json_pointer ptr = JSON_SETTINGS_INTERNALS::PointerFromString( aPath );
|
|
|
|
if( aObj.contains( ptr ) && aObj.at( ptr ).is_boolean() )
|
|
{
|
|
aTarget = aObj.at( ptr ).get<bool>();
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
bool JSON_SETTINGS::SetIfPresent( const nlohmann::json& aObj, const std::string& aPath,
|
|
int& aTarget )
|
|
{
|
|
nlohmann::json::json_pointer ptr = JSON_SETTINGS_INTERNALS::PointerFromString( aPath );
|
|
|
|
if( aObj.contains( ptr ) && aObj.at( ptr ).is_number_integer() )
|
|
{
|
|
aTarget = aObj.at( ptr ).get<int>();
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
bool JSON_SETTINGS::SetIfPresent( const nlohmann::json& aObj, const std::string& aPath,
|
|
unsigned int& aTarget )
|
|
{
|
|
nlohmann::json::json_pointer ptr = JSON_SETTINGS_INTERNALS::PointerFromString( aPath );
|
|
|
|
if( aObj.contains( ptr ) && aObj.at( ptr ).is_number_unsigned() )
|
|
{
|
|
aTarget = aObj.at( ptr ).get<unsigned int>();
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
template<typename ValueType>
|
|
bool JSON_SETTINGS::fromLegacy( wxConfigBase* aConfig, const std::string& aKey,
|
|
const std::string& aDest )
|
|
{
|
|
ValueType val;
|
|
|
|
if( aConfig->Read( aKey, &val ) )
|
|
{
|
|
try
|
|
{
|
|
( *m_internals )[aDest] = val;
|
|
}
|
|
catch( ... )
|
|
{
|
|
wxASSERT_MSG( false, wxT( "Could not write value in fromLegacy!" ) );
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
// Explicitly declare these because we only support a few types anyway, and it means we can keep
|
|
// wxConfig detail out of the header file
|
|
template bool JSON_SETTINGS::fromLegacy<int>( wxConfigBase*, const std::string&,
|
|
const std::string& );
|
|
|
|
template bool JSON_SETTINGS::fromLegacy<double>( wxConfigBase*, const std::string&,
|
|
const std::string& );
|
|
|
|
template bool JSON_SETTINGS::fromLegacy<bool>( wxConfigBase*, const std::string&,
|
|
const std::string& );
|
|
|
|
|
|
bool JSON_SETTINGS::fromLegacyString( wxConfigBase* aConfig, const std::string& aKey,
|
|
const std::string& aDest )
|
|
{
|
|
wxString str;
|
|
|
|
if( aConfig->Read( aKey, &str ) )
|
|
{
|
|
try
|
|
{
|
|
( *m_internals )[aDest] = str.ToUTF8();
|
|
}
|
|
catch( ... )
|
|
{
|
|
wxASSERT_MSG( false, wxT( "Could not write value in fromLegacyString!" ) );
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
bool JSON_SETTINGS::fromLegacyColor( wxConfigBase* aConfig, const std::string& aKey,
|
|
const std::string& aDest )
|
|
{
|
|
wxString str;
|
|
|
|
if( aConfig->Read( aKey, &str ) )
|
|
{
|
|
KIGFX::COLOR4D color;
|
|
color.SetFromWxString( str );
|
|
|
|
try
|
|
{
|
|
nlohmann::json js = nlohmann::json::array( { color.r, color.g, color.b, color.a } );
|
|
( *m_internals )[aDest] = js;
|
|
}
|
|
catch( ... )
|
|
{
|
|
wxASSERT_MSG( false, wxT( "Could not write value in fromLegacyColor!" ) );
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
void JSON_SETTINGS::AddNestedSettings( NESTED_SETTINGS* aSettings )
|
|
{
|
|
wxLogTrace( traceSettings, wxT( "AddNestedSettings %s" ), aSettings->GetFilename() );
|
|
m_nested_settings.push_back( aSettings );
|
|
}
|
|
|
|
|
|
void JSON_SETTINGS::ReleaseNestedSettings( NESTED_SETTINGS* aSettings )
|
|
{
|
|
if( !aSettings )
|
|
return;
|
|
|
|
auto it = std::find_if( m_nested_settings.begin(), m_nested_settings.end(),
|
|
[&aSettings]( const JSON_SETTINGS* aPtr ) {
|
|
return aPtr == aSettings;
|
|
} );
|
|
|
|
if( it != m_nested_settings.end() )
|
|
{
|
|
wxLogTrace( traceSettings, wxT( "Flush and release %s" ), ( *it )->GetFilename() );
|
|
( *it )->SaveToFile();
|
|
m_nested_settings.erase( it );
|
|
}
|
|
|
|
aSettings->SetParent( nullptr );
|
|
}
|
|
|
|
|
|
// Specializations to allow conversion between wxString and std::string via JSON_SETTINGS API
|
|
|
|
template<> OPT<wxString> JSON_SETTINGS::Get( const std::string& aPath ) const
|
|
{
|
|
if( OPT<nlohmann::json> opt_json = GetJson( aPath ) )
|
|
return wxString( opt_json->get<std::string>().c_str(), wxConvUTF8 );
|
|
|
|
return NULLOPT;
|
|
}
|
|
|
|
|
|
template<> void JSON_SETTINGS::Set<wxString>( const std::string& aPath, wxString aVal )
|
|
{
|
|
( *m_internals )[aPath] = aVal.ToUTF8();
|
|
}
|
|
|
|
// Specializations to allow directly reading/writing wxStrings from JSON
|
|
|
|
void to_json( nlohmann::json& aJson, const wxString& aString )
|
|
{
|
|
aJson = aString.ToUTF8();
|
|
}
|
|
|
|
|
|
void from_json( const nlohmann::json& aJson, wxString& aString )
|
|
{
|
|
aString = wxString( aJson.get<std::string>().c_str(), wxConvUTF8 );
|
|
}
|