144 lines
4.2 KiB
C++
144 lines
4.2 KiB
C++
/*
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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) 2023 Jon Evans <jon@craftyjon.com>
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* Copyright (C) 2023 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 <wx/process.h>
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#include <utility>
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#include <paths.h>
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#include <python_manager.h>
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class PYTHON_PROCESS : public wxProcess
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{
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public:
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PYTHON_PROCESS( std::function<void(int, const wxString&, const wxString&)> aCallback ) :
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wxProcess(),
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m_callback( std::move( aCallback ) )
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{}
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void OnTerminate( int aPid, int aStatus ) override
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{
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if( m_callback )
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{
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wxString output, error;
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wxInputStream* processOut = GetInputStream();
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size_t bytesRead = 0;
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while( processOut->CanRead() && bytesRead < MAX_OUTPUT_LEN )
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{
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char buffer[4096];
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buffer[ processOut->Read( buffer, sizeof( buffer ) - 1 ).LastRead() ] = '\0';
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output.append( buffer, processOut->LastRead() );
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bytesRead += processOut->LastRead();
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}
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processOut = GetErrorStream();
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bytesRead = 0;
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while( processOut->CanRead() && bytesRead < MAX_OUTPUT_LEN )
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{
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char buffer[4096];
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buffer[ processOut->Read( buffer, sizeof( buffer ) - 1 ).LastRead() ] = '\0';
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error.append( buffer, processOut->LastRead() );
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bytesRead += processOut->LastRead();
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}
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m_callback( aStatus, output, error );
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}
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}
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static constexpr size_t MAX_OUTPUT_LEN = 1024L * 1024L;
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private:
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std::function<void(int, const wxString&, const wxString&)> m_callback;
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};
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void PYTHON_MANAGER::Execute( const wxString& aArgs,
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const std::function<void( int, const wxString&,
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const wxString& )>& aCallback,
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const wxExecuteEnv* aEnv )
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{
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PYTHON_PROCESS* process = new PYTHON_PROCESS( aCallback );
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process->Redirect();
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wxString cmd = wxString::Format( wxS( "%s %s" ), m_interpreterPath, aArgs );
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long pid = wxExecute( cmd, wxEXEC_ASYNC, process, aEnv );
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if( pid == 0 )
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aCallback( -1, wxEmptyString, _( "Process could not be created" ) );
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}
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wxString PYTHON_MANAGER::FindPythonInterpreter()
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{
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#ifdef __WXMSW__
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// TODO(JE) where
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#else
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wxArrayString output;
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if( 0 == wxExecute( wxS( "which -a python3" ), output, wxEXEC_SYNC ) )
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{
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if( !output.IsEmpty() )
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return output[0];
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}
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if( 0 == wxExecute( wxS( "which -a python" ), output, wxEXEC_SYNC ) )
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{
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if( !output.IsEmpty() )
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return output[0];
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}
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#endif
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return wxEmptyString;
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}
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std::optional<wxString> PYTHON_MANAGER::GetPythonEnvironment( const wxString& aNamespace )
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{
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wxFileName path( PATHS::GetUserCachePath(), wxEmptyString );
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path.AppendDir( wxS( "python-environments" ) );
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path.AppendDir( aNamespace );
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if( !PATHS::EnsurePathExists( path.GetPath() ) )
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return std::nullopt;
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return path.GetPath();
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}
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std::optional<wxString> PYTHON_MANAGER::GetVirtualPython( const wxString& aNamespace )
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{
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std::optional<wxString> envPath = GetPythonEnvironment( aNamespace );
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if( !envPath )
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return std::nullopt;
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wxFileName python( *envPath, wxEmptyString );
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python.AppendDir( "bin" );
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python.SetFullName( "python" );
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if( !python.IsFileExecutable() )
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return std::nullopt;
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return python.GetFullPath();
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}
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