lib_table_base.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2010-2012 SoftPLC Corporation, Dick Hollenbeck <[email protected]>
 * Copyright (C) 2012 Wayne Stambaugh <[email protected]>
 * Copyright (C) 2012-2022 KiCad Developers, see AUTHORS.txt for contributors.
 *
 * 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.
 *
 * 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, you may find one here:
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * or you may search the http://www.gnu.org website for the version 2 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
 */
 
 
#include <wx/debug.h>
#include <wx/filename.h>
#include <set>
#include <common.h>
#include <kiface_base.h>
#include <lib_table_base.h>
#include <lib_table_lexer.h>
#include <macros.h>
#include <string_utils.h>
 
#define OPT_SEP '|' 
 
 
using namespace LIB_TABLE_T;
 
 
LIB_TABLE_ROW* new_clone( const LIB_TABLE_ROW& aRow )
{
 return aRow.clone();
}
 
 
void LIB_TABLE_ROW::setProperties( STRING_UTF8_MAP* aProperties )
{
 properties.reset( aProperties );
}
 
 
void LIB_TABLE_ROW::SetFullURI( const wxString& aFullURI )
{
 uri_user = aFullURI;
}
 
 
const wxString LIB_TABLE_ROW::GetFullURI( bool aSubstituted ) const
{
 if( aSubstituted )
 {
 return ExpandEnvVarSubstitutions( uri_user, nullptr );
 }
 
 return uri_user;
}
 
 
void LIB_TABLE_ROW::Format( OUTPUTFORMATTER* out, int nestLevel ) const
{
 // In Kicad, we save path and file names using the Unix notation (separator = '/')
 // So ensure separator is always '/' is saved URI string
 wxString uri = GetFullURI();
 uri.Replace( '\\', '/' );
 
 wxString extraOptions;
 
 if( !GetIsEnabled() )
 extraOptions += "(disabled)";
 
 if( !GetIsVisible() )
 extraOptions += "(hidden)";
 
 out->Print( nestLevel, "(lib (name %s)(type %s)(uri %s)(options %s)(descr %s)%s)\n",
 out->Quotew( GetNickName() ).c_str(),
 out->Quotew( GetType() ).c_str(),
 out->Quotew( uri ).c_str(),
 out->Quotew( GetOptions() ).c_str(),
 out->Quotew( GetDescr() ).c_str(),
 extraOptions.ToStdString().c_str() );
}
 
 
bool LIB_TABLE_ROW::operator==( const LIB_TABLE_ROW& r ) const
{
 return nickName == r.nickName
 && uri_user == r.uri_user
 && options == r.options
 && description == r.description
 && enabled == r.enabled
 && visible == r.visible;
}
 
 
void LIB_TABLE_ROW::SetOptions( const wxString& aOptions )
{
 options = aOptions;
 
 // set PROPERTIES* from options
 setProperties( LIB_TABLE::ParseOptions( TO_UTF8( aOptions ) ) );
}
 
 
LIB_TABLE::LIB_TABLE( LIB_TABLE* aFallBackTable ) :
 m_fallBack( aFallBackTable ), m_version( 0 )
{
 // not copying fall back, simply search aFallBackTable separately
 // if "nickName not found".
}
 
 
LIB_TABLE::~LIB_TABLE()
{
 // *fallBack is not owned here.
}
 
 
void LIB_TABLE::Clear()
{
 m_rows.clear();
 m_rowsMap.clear();
}
 
 
bool LIB_TABLE::IsEmpty( bool aIncludeFallback )
{
 if( !aIncludeFallback || !m_fallBack )
 return m_rows.empty();
 
 return m_rows.empty() && m_fallBack->IsEmpty( true );
}
 
 
const wxString LIB_TABLE::GetDescription( const wxString& aNickname )
{
 // Use "no exception" form of find row and ignore disabled flag.
 const LIB_TABLE_ROW* row = findRow( aNickname );
 
 if( row )
 return row->GetDescr();
 else
 return wxEmptyString;
}
 
 
bool LIB_TABLE::HasLibrary( const wxString& aNickname, bool aCheckEnabled ) const
{
 const LIB_TABLE_ROW* row = findRow( aNickname, aCheckEnabled );
 
 if( row == nullptr )
 return false;
 
 return true;
}
 
 
bool LIB_TABLE::HasLibraryWithPath( const wxString& aPath ) const
{
 for( const LIB_TABLE_ROW& row : m_rows )
 {
 if( row.GetFullURI() == aPath )
 return true;
 }
 
 return false;
}
 
 
wxString LIB_TABLE::GetFullURI( const wxString& aNickname, bool aExpandEnvVars ) const
{
 const LIB_TABLE_ROW* row = findRow( aNickname, true );
 
 wxString retv;
 
 if( row )
 retv = row->GetFullURI( aExpandEnvVars );
 
 return retv;
}
 
 
LIB_TABLE_ROW* LIB_TABLE::findRow( const wxString& aNickName, bool aCheckIfEnabled ) const
{
 LIB_TABLE_ROW* row = nullptr;
 LIB_TABLE* cur = (LIB_TABLE*) this;
 
 do
 {
 try
 {
 std::shared_lock<std::shared_mutex> lock( cur->m_mutex );
 }
 catch( std::system_error& e )
 {
 wxASSERT_MSG( false, wxString::Format( wxS( "Failed to lock lib table mutex: %s" ),
 e.what() ) );
 continue;
 }
 
 if( cur->m_rowsMap.count( aNickName ) )
 row = &*cur->m_rowsMap.at( aNickName );
 
 if( row )
 {
 if( !aCheckIfEnabled || row->GetIsEnabled() )
 return row;
 else
 return nullptr; // We found it, but it's disabled
 }
 
 // Repeat, this time looking for names that were "fixed" by legacy versions because
 // the old eeschema file format didn't support spaces in tokens.
 for( const std::pair<const wxString, LIB_TABLE_ROWS_ITER>& entry : cur->m_rowsMap )
 {
 wxString legacyLibName = entry.first;
 legacyLibName.Replace( " ", "_" );
 
 if( legacyLibName == aNickName )
 {
 row = &*entry.second;
 
 if( !aCheckIfEnabled || row->GetIsEnabled() )
 return row;
 }
 }
 
 // not found, search fall back table(s), if any
 } while( ( cur = cur->m_fallBack ) != nullptr );
 
 return nullptr; // not found
}
 
 
const LIB_TABLE_ROW* LIB_TABLE::FindRowByURI( const wxString& aURI )
{
 LIB_TABLE* cur = this;
 
 do
 {
 for( unsigned i = 0; i < cur->m_rows.size(); i++ )
 {
 wxString tmp = cur->m_rows[i].GetFullURI( true );
 
 if( tmp.Find( "://" ) != wxNOT_FOUND )
 {
 if( tmp == aURI )
 return &cur->m_rows[i]; // found as URI
 }
 else
 {
 wxFileName fn = aURI;
 
 // This will also test if the file is a symlink so if we are comparing
 // a symlink to the same real file, the comparison will be true. See
 // wxFileName::SameAs() in the wxWidgets source.
 if( fn == wxFileName( tmp ) )
 return &cur->m_rows[i]; // found as full path and file name
 }
 }
 
 // not found, search fall back table(s), if any
 } while( ( cur = cur->m_fallBack ) != nullptr );
 
 return nullptr; // not found
}
 
 
std::vector<wxString> LIB_TABLE::GetLogicalLibs()
{
 // Only return unique logical library names. Use std::set::insert() to quietly reject any
 // duplicates (usually due to encountering a duplicate nickname in a fallback table).
 
 std::set<wxString> unique;
 std::vector<wxString> ret;
 const LIB_TABLE* cur = this;
 
 do
 {
 for( const LIB_TABLE_ROW& row : cur->m_rows )
 {
 if( row.GetIsEnabled() )
 unique.insert( row.GetNickName() );
 }
 
 } while( ( cur = cur->m_fallBack ) != nullptr );
 
 ret.reserve( unique.size() );
 
 // return a sorted, unique set of nicknames in a std::vector<wxString> to caller
 for( std::set< wxString >::const_iterator it = unique.begin(); it!=unique.end(); ++it )
 ret.push_back( *it );
 
 // We want to allow case-sensitive duplicates but sort by case-insensitive ordering
 std::sort( ret.begin(), ret.end(),
 []( const wxString& lhs, const wxString& rhs )
 {
 return StrNumCmp( lhs, rhs, true /* ignore case */ ) < 0;
 } );
 
 return ret;
}
 
 
bool LIB_TABLE::InsertRow( LIB_TABLE_ROW* aRow, bool doReplace )
{
 std::lock_guard<std::shared_mutex> lock( m_mutex );
 
 auto it = m_rowsMap.find( aRow->GetNickName() );
 
 if( it != m_rowsMap.end() )
 {
 if( !doReplace )
 return false;
 
 m_rows.replace( it->second, aRow );
 }
 else
 {
 m_rows.push_back( aRow );
 }
 
 aRow->SetParent( this );
 reindex();
 return true;
}
 
 
bool LIB_TABLE::RemoveRow( const LIB_TABLE_ROW* aRow )
{
 std::lock_guard<std::shared_mutex> lock( m_mutex );
 
 bool found = false;
 auto it = m_rowsMap.find( aRow->GetNickName() );
 
 if( it != m_rowsMap.end() )
 {
 if( &*it->second == aRow )
 {
 found = true;
 m_rows.erase( it->second );
 }
 }
 
 if( !found )
 {
 // Bookkeeping got messed up...
 for( int i = (int)m_rows.size() - 1; i >= 0; --i )
 {
 if( &m_rows[i] == aRow )
 {
 m_rows.erase( m_rows.begin() + i );
 found = true;
 break;
 }
 }
 }
 
 if( found )
 reindex();
 
 return found;
}
 
 
bool LIB_TABLE::ReplaceRow( size_t aIndex, LIB_TABLE_ROW* aRow )
{
 std::lock_guard<std::shared_mutex> lock( m_mutex );
 
 if( aIndex >= m_rows.size() )
 return false;
 
 m_rowsMap.erase( m_rows[aIndex].GetNickName() );
 
 m_rows.replace( aIndex, aRow );
 reindex();
 return true;
}
 
 
bool LIB_TABLE::ChangeRowOrder( size_t aIndex, int aOffset )
{
 std::lock_guard<std::shared_mutex> lock( m_mutex );
 
 if( aIndex >= m_rows.size() )
 return false;
 
 int newPos = static_cast<int>( aIndex ) + aOffset;
 
 if( newPos < 0 || newPos > static_cast<int>( m_rows.size() ) - 1 )
 return false;
 
 auto element = m_rows.release( m_rows.begin() + aIndex );
 
 m_rows.insert( m_rows.begin() + newPos, element.release() );
 reindex();
 
 return true;
}
 
 
void LIB_TABLE::TransferRows( LIB_TABLE_ROWS& aRowsList )
{
 std::lock_guard<std::shared_mutex> lock( m_mutex );
 
 m_rows.transfer( m_rows.end(), aRowsList.begin(), aRowsList.end(), aRowsList );
 
 reindex();
}
 
 
void LIB_TABLE::reindex()
{
 m_rowsMap.clear();
 
 for( LIB_TABLE_ROWS_ITER it = m_rows.begin(); it != m_rows.end(); ++it )
 {
 it->SetParent( this );
 m_rowsMap[it->GetNickName()] = it;
 }
}
 
 
bool LIB_TABLE::migrate()
{
 bool table_updated = false;
 
 for( LIB_TABLE_ROW& row : m_rows )
 {
 bool row_updated = false;
 wxString uri = row.GetFullURI( true );
 
 // If the uri still has a variable in it, that means that the user does not have
 // these vars defined. We update the old vars to the KICAD7 versions on load
 row_updated |= ( uri.Replace( wxS( "${KICAD5_" ), wxS( "${KICAD7_" ), false ) > 0 );
 row_updated |= ( uri.Replace( wxS( "${KICAD6_" ), wxS( "${KICAD7_" ), false ) > 0 );
 
 if( row_updated )
 {
 row.SetFullURI( uri );
 table_updated = true;
 }
 }
 
 return table_updated;
}
 
 
void LIB_TABLE::Load( const wxString& aFileName )
{
 // It's OK if footprint library tables are missing.
 if( wxFileName::IsFileReadable( aFileName ) )
 {
 FILE_LINE_READER reader( aFileName );
 LIB_TABLE_LEXER lexer( &reader );
 
 Parse( &lexer );
 
 if( m_version != 7 && migrate() && wxFileName::IsFileWritable( aFileName ) )
 Save( aFileName );
 }
}
 
 
void LIB_TABLE::Save( const wxString& aFileName ) const
{
 FILE_OUTPUTFORMATTER sf( aFileName );
 
 // Force the lib table version to 7 before saving
 m_version = 7;
 Format( &sf, 0 );
}
 
 
STRING_UTF8_MAP* LIB_TABLE::ParseOptions( const std::string& aOptionsList )
{
 if( aOptionsList.size() )
 {
 const char* cp = &aOptionsList[0];
 const char* end = cp + aOptionsList.size();
 
 STRING_UTF8_MAP props;
 std::string pair;
 
 // Parse all name=value pairs
 while( cp < end )
 {
 pair.clear();
 
 // Skip leading white space.
 while( cp < end && isspace( *cp ) )
 ++cp;
 
 // Find the end of pair/field
 while( cp < end )
 {
 if( *cp == '\\' && cp + 1 < end && cp[1] == OPT_SEP )
 {
 ++cp; // skip the escape
 pair += *cp++; // add the separator
 }
 else if( *cp == OPT_SEP )
 {
 ++cp; // skip the separator
 break; // process the pair
 }
 else
 {
 pair += *cp++;
 }
 }
 
 // stash the pair
 if( pair.size() )
 {
 // first equals sign separates 'name' and 'value'.
 size_t eqNdx = pair.find( '=' );
 
 if( eqNdx != pair.npos )
 {
 std::string name = pair.substr( 0, eqNdx );
 std::string value = pair.substr( eqNdx + 1 );
 props[name] = value;
 }
 else
 {
 props[pair] = ""; // property is present, but with no value.
 }
 }
 }
 
 if( props.size() )
 return new STRING_UTF8_MAP( props );
 }
 
 return nullptr;
}
 
 
UTF8 LIB_TABLE::FormatOptions( const STRING_UTF8_MAP* aProperties )
{
 UTF8 ret;
 
 if( aProperties )
 {
 for( STRING_UTF8_MAP::const_iterator it = aProperties->begin(); it != aProperties->end(); ++it )
 {
 const std::string& name = it->first;
 
 const UTF8& value = it->second;
 
 if( ret.size() )
 ret += OPT_SEP;
 
 ret += name;
 
 // the separation between name and value is '='
 if( value.size() )
 {
 ret += '=';
 
 for( std::string::const_iterator si = value.begin(); si != value.end(); ++si )
 {
 // escape any separator in the value.
 if( *si == OPT_SEP )
 ret += '\\';
 
 ret += *si;
 }
 }
 }
 }
 
 return ret;
}