kicad/common/filename_resolver.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
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* Copyright (C) 2015-2020 Cirilo Bernardo <cirilo.bernardo@gmail.com>
* Copyright (C) 2015-2021 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 <fstream>
#include <mutex>
#include <sstream>
#include <wx/log.h>
#include <wx/msgdlg.h>
#include <pgm_base.h>
#include <trace_helpers.h>
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#include "common.h"
#include "filename_resolver.h"
#include <wx_filename.h>
// configuration file version
#define CFGFILE_VERSION 1
// flag bits used to track different one-off messages to users
#define ERRFLG_ALIAS (1)
#define ERRFLG_RELPATH (2)
#define ERRFLG_ENVPATH (4)
#define MASK_3D_RESOLVER "3D_RESOLVER"
static std::mutex mutex_resolver;
FILENAME_RESOLVER::FILENAME_RESOLVER() :
m_pgm( nullptr ),
m_project( nullptr )
{
m_errflags = 0;
}
bool FILENAME_RESOLVER::Set3DConfigDir( const wxString& aConfigDir )
{
if( aConfigDir.empty() )
return false;
wxFileName cfgdir( ExpandEnvVarSubstitutions( aConfigDir, m_project ), "" );
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cfgdir.Normalize( FN_NORMALIZE_FLAGS );
if( !cfgdir.DirExists() )
return false;
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m_configDir = cfgdir.GetPath();
createPathList();
return true;
}
bool FILENAME_RESOLVER::SetProject( PROJECT* aProject, bool* flgChanged )
{
m_project = aProject;
if( !aProject )
return false;
wxFileName projdir( ExpandEnvVarSubstitutions( aProject->GetProjectPath(), aProject ), "" );
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projdir.Normalize( FN_NORMALIZE_FLAGS );
if( !projdir.DirExists() )
return false;
m_curProjDir = projdir.GetPath();
if( flgChanged )
*flgChanged = false;
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if( m_paths.empty() )
{
SEARCH_PATH al;
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al.m_Alias = "${KIPRJMOD}";
al.m_Pathvar = "${KIPRJMOD}";
al.m_Pathexp = m_curProjDir;
m_paths.push_back( al );
if( flgChanged )
*flgChanged = true;
}
else
{
if( m_paths.front().m_Pathexp != m_curProjDir )
{
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m_paths.front().m_Pathexp = m_curProjDir;
if( flgChanged )
*flgChanged = true;
}
else
{
return true;
}
}
#ifdef DEBUG
{
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [INFO] changed project dir to ";
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ostr << m_paths.front().m_Pathexp.ToUTF8();
wxLogTrace( MASK_3D_RESOLVER, "%s\n", ostr.str().c_str() );
}
#endif
return true;
}
wxString FILENAME_RESOLVER::GetProjectDir() const
{
return m_curProjDir;
}
void FILENAME_RESOLVER::SetProgramBase( PGM_BASE* aBase )
{
m_pgm = aBase;
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if( !m_pgm || m_paths.empty() )
return;
// recreate the path list
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m_paths.clear();
createPathList();
}
bool FILENAME_RESOLVER::createPathList()
{
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if( !m_paths.empty() )
return true;
// add an entry for the default search path; at this point
// we cannot set a sensible default so we use an empty string.
// the user may change this later with a call to SetProjectDir()
SEARCH_PATH lpath;
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lpath.m_Alias = "${KIPRJMOD}";
lpath.m_Pathvar = "${KIPRJMOD}";
lpath.m_Pathexp = m_curProjDir;
m_paths.push_back( lpath );
wxFileName fndummy;
wxUniChar psep = fndummy.GetPathSeparator();
std::list< wxString > epaths;
if( GetKicadPaths( epaths ) )
{
for( const wxString& currPath : epaths )
{
wxString currPathVarFormat = currPath;
currPathVarFormat.Prepend( wxS( "${" ) );
currPathVarFormat.Append( wxS( "}" ) );
wxString pathVal = ExpandEnvVarSubstitutions( currPathVarFormat, m_project );
if( pathVal.empty() )
{
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lpath.m_Pathexp.clear();
}
else
{
fndummy.Assign( pathVal, "" );
fndummy.Normalize( FN_NORMALIZE_FLAGS );
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lpath.m_Pathexp = fndummy.GetFullPath();
}
lpath.m_Alias = currPath;
lpath.m_Pathvar = currPath;
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if( !lpath.m_Pathexp.empty() && psep == *lpath.m_Pathexp.rbegin() )
lpath.m_Pathexp.erase( --lpath.m_Pathexp.end() );
// we add it first with the alias set to the non-variable format
m_paths.push_back( lpath );
// now add it with the "new variable format ${VAR}"
lpath.m_Alias = currPathVarFormat;
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m_paths.push_back( lpath );
}
}
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if( m_paths.empty() )
return false;
#ifdef DEBUG
wxLogTrace( MASK_3D_RESOLVER, " * [3D model] search paths:\n" );
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std::list< SEARCH_PATH >::const_iterator sPL = m_paths.begin();
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while( sPL != m_paths.end() )
{
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wxLogTrace( MASK_3D_RESOLVER, " + %s : '%s'\n", (*sPL).m_Alias.GetData(),
(*sPL).m_Pathexp.GetData() );
++sPL;
}
#endif
return true;
}
bool FILENAME_RESOLVER::UpdatePathList( const std::vector< SEARCH_PATH >& aPathList )
{
wxUniChar envMarker( '$' );
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while( !m_paths.empty() && envMarker != *m_paths.back().m_Alias.rbegin() )
m_paths.pop_back();
for( const SEARCH_PATH& path : aPathList )
addPath( path );
return true;
}
wxString FILENAME_RESOLVER::ResolvePath( const wxString& aFileName, const wxString& aWorkingPath )
{
std::lock_guard<std::mutex> lock( mutex_resolver );
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if( aFileName.empty() )
return wxEmptyString;
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if( m_paths.empty() )
createPathList();
// first attempt to use the name as specified:
wxString tname = aFileName;
#ifdef _WIN32
// translate from KiCad's internal UNIX-like path to MSWin paths
tname.Replace( wxT( "/" ), wxT( "\\" ) );
#endif
// Note: variable expansion must preferably be performed via a threadsafe wrapper for the
// getenv() system call. If we allow the wxFileName::Normalize() routine to perform expansion
// then we will have a race condition since wxWidgets does not assure a threadsafe wrapper
// for getenv().
tname = ExpandEnvVarSubstitutions( tname, m_project );
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wxFileName tmpFN( tname );
// this case covers full paths, leading expanded vars, and paths relative to the current
// working directory (which is not necessarily the current project directory)
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if( tmpFN.FileExists() )
{
tmpFN.Normalize( FN_NORMALIZE_FLAGS );
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tname = tmpFN.GetFullPath();
// special case: if a path begins with ${ENV_VAR} but is not in the resolver's path list
// then add it.
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if( aFileName.StartsWith( "${" ) || aFileName.StartsWith( "$(" ) )
checkEnvVarPath( aFileName );
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return tname;
}
// if a path begins with ${ENV_VAR}/$(ENV_VAR) and is not resolved then the file either does
// not exist or the ENV_VAR is not defined
if( aFileName.StartsWith( "${" ) || aFileName.StartsWith( "$(" ) )
{
if( !( m_errflags & ERRFLG_ENVPATH ) )
{
m_errflags |= ERRFLG_ENVPATH;
wxString errmsg = "[3D File Resolver] No such path; ensure the environment var is defined";
errmsg.append( "\n" );
errmsg.append( tname );
errmsg.append( "\n" );
wxLogTrace( tracePathsAndFiles, errmsg );
}
return wxEmptyString;
}
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// at this point aFileName is:
// a. an aliased shortened name or
// b. cannot be determined
// check the path relative to the current project directory;
// NB: this is not necessarily the same as the current working directory, which has already
// been checked. This case accounts for partial paths which do not contain ${KIPRJMOD}.
// This check is performed before checking the path relative to ${KICAD6_3DMODEL_DIR} so that
// users can potentially override a model within ${KICAD6_3DMODEL_DIR}.
if( !m_paths.begin()->m_Pathexp.empty() && !tname.StartsWith( ":" ) )
{
tmpFN.Assign( m_paths.begin()->m_Pathexp, "" );
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wxString fullPath = tmpFN.GetPathWithSep() + tname;
fullPath = ExpandEnvVarSubstitutions( fullPath, m_project );
if( wxFileName::FileExists( fullPath ) )
{
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tmpFN.Assign( fullPath );
tmpFN.Normalize( FN_NORMALIZE_FLAGS );
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tname = tmpFN.GetFullPath();
return tname;
}
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}
// check path relative to search path
if( !aWorkingPath.IsEmpty() && !tname.StartsWith( ":" ) )
{
wxString tmp = aWorkingPath;
tmp.Append( tmpFN.GetPathSeparator() );
tmp.Append( tname );
tmpFN.Assign( tmp );
if( tmpFN.MakeAbsolute() && tmpFN.FileExists() )
{
tname = tmpFN.GetFullPath();
return tname;
}
}
// check the partial path relative to ${KICAD6_3DMODEL_DIR} (legacy behavior)
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if( !tname.StartsWith( ":" ) )
{
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wxFileName fpath;
wxString fullPath( "${KICAD6_3DMODEL_DIR}" );
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fullPath.Append( fpath.GetPathSeparator() );
fullPath.Append( tname );
fullPath = ExpandEnvVarSubstitutions( fullPath, m_project );
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fpath.Assign( fullPath );
if( fpath.Normalize( FN_NORMALIZE_FLAGS ) && fpath.FileExists() )
{
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tname = fpath.GetFullPath();
return tname;
}
}
// at this point the filename must contain an alias or else it is invalid
wxString alias; // the alias portion of the short filename
wxString relpath; // the path relative to the alias
if( !SplitAlias( tname, alias, relpath ) )
{
if( !( m_errflags & ERRFLG_RELPATH ) )
{
// this can happen if the file was intended to be relative to ${KICAD6_3DMODEL_DIR}
// but ${KICAD6_3DMODEL_DIR} is not set or is incorrect.
m_errflags |= ERRFLG_RELPATH;
wxString errmsg = "[3D File Resolver] No such path";
errmsg.append( "\n" );
errmsg.append( tname );
errmsg.append( "\n" );
wxLogTrace( tracePathsAndFiles, errmsg );
}
return wxEmptyString;
}
for( const SEARCH_PATH& path : m_paths )
{
// ${ENV_VAR} paths have already been checked; skip them
if( path.m_Alias.StartsWith( "${" ) || path.m_Alias.StartsWith( "$(" ) )
continue;
if( path.m_Alias == alias && !path.m_Pathexp.empty() )
{
wxFileName fpath( wxFileName::DirName( path.m_Pathexp ) );
wxString fullPath = fpath.GetPathWithSep() + relpath;
fullPath = ExpandEnvVarSubstitutions( fullPath, m_project );
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if( wxFileName::FileExists( fullPath ) )
{
tname = fullPath;
wxFileName tmp( fullPath );
if( tmp.Normalize( FN_NORMALIZE_FLAGS ) )
tname = tmp.GetFullPath();
return tname;
}
}
}
if( !( m_errflags & ERRFLG_ALIAS ) )
{
m_errflags |= ERRFLG_ALIAS;
wxString errmsg = "[3D File Resolver] No such path; ensure the path alias is defined";
errmsg.append( "\n" );
errmsg.append( tname.substr( 1 ) );
errmsg.append( "\n" );
wxLogTrace( tracePathsAndFiles, errmsg );
}
return wxEmptyString;
}
bool FILENAME_RESOLVER::addPath( const SEARCH_PATH& aPath )
{
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if( aPath.m_Alias.empty() || aPath.m_Pathvar.empty() )
return false;
std::lock_guard<std::mutex> lock( mutex_resolver );
SEARCH_PATH tpath = aPath;
#ifdef _WIN32
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while( tpath.m_Pathvar.EndsWith( wxT( "\\" ) ) )
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tpath.m_Pathvar.erase( tpath.m_Pathvar.length() - 1 );
#else
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while( tpath.m_Pathvar.EndsWith( wxT( "/" ) ) && tpath.m_Pathvar.length() > 1 )
tpath.m_Pathvar.erase( tpath.m_Pathvar.length() - 1 );
#endif
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wxFileName path( ExpandEnvVarSubstitutions( tpath.m_Pathvar, m_project ), "" );
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path.Normalize( FN_NORMALIZE_FLAGS );
if( !path.DirExists() )
{
if( aPath.m_Pathvar == "${KICAD6_3DMODEL_DIR}"
|| aPath.m_Pathvar == "${KIPRJMOD}" || aPath.m_Pathvar == "$(KIPRJMOD)"
|| aPath.m_Pathvar == "${KISYS3DMOD}" || aPath.m_Pathvar == "$(KISYS3DMOD)" )
{
// suppress the message if the missing pathvar is a system variable
}
else
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{
wxString msg = _( "The given path does not exist" );
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msg.append( wxT( "\n" ) );
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msg.append( tpath.m_Pathvar );
wxMessageBox( msg, _( "3D model search path" ) );
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}
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tpath.m_Pathexp.clear();
}
else
{
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tpath.m_Pathexp = path.GetFullPath();
#ifdef _WIN32
while( tpath.m_Pathexp.EndsWith( wxT( "\\" ) ) )
tpath.m_Pathexp.erase( tpath.m_Pathexp.length() - 1 );
#else
while( tpath.m_Pathexp.EndsWith( wxT( "/" ) ) && tpath.m_Pathexp.length() > 1 )
tpath.m_Pathexp.erase( tpath.m_Pathexp.length() - 1 );
#endif
}
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std::list< SEARCH_PATH >::iterator sPL = m_paths.begin();
std::list< SEARCH_PATH >::iterator ePL = m_paths.end();
while( sPL != ePL )
{
if( tpath.m_Alias == sPL->m_Alias )
{
wxString msg = _( "Alias: " );
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msg.append( tpath.m_Alias );
msg.append( wxT( "\n" ) );
msg.append( _( "This path:" ) + wxS( " " ) );
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msg.append( tpath.m_Pathvar );
msg.append( wxT( "\n" ) );
msg.append( _( "Existing path:" ) + wxS( " " ) );
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msg.append( sPL->m_Pathvar );
wxMessageBox( msg, _( "Bad alias (duplicate name)" ) );
return false;
}
++sPL;
}
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m_paths.push_back( tpath );
return true;
}
void FILENAME_RESOLVER::checkEnvVarPath( const wxString& aPath )
{
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bool useParen = false;
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if( aPath.StartsWith( "$(" ) )
useParen = true;
else if( !aPath.StartsWith( "${" ) )
return;
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size_t pEnd;
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if( useParen )
pEnd = aPath.find( ")" );
else
pEnd = aPath.find( "}" );
if( pEnd == wxString::npos )
return;
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wxString envar = aPath.substr( 0, pEnd + 1 );
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// check if the alias exists; if not then add it to the end of the
// env var section of the path list
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auto sPL = m_paths.begin();
auto ePL = m_paths.end();
while( sPL != ePL )
{
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if( sPL->m_Alias == envar )
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return;
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if( !sPL->m_Alias.StartsWith( "${" ) )
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break;
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++sPL;
}
SEARCH_PATH lpath;
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lpath.m_Alias = envar;
lpath.m_Pathvar = lpath.m_Alias;
wxFileName tmpFN( ExpandEnvVarSubstitutions( lpath.m_Alias, m_project ), "" );
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wxUniChar psep = tmpFN.GetPathSeparator();
tmpFN.Normalize( FN_NORMALIZE_FLAGS );
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if( !tmpFN.DirExists() )
return;
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lpath.m_Pathexp = tmpFN.GetFullPath();
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if( !lpath.m_Pathexp.empty() && psep == *lpath.m_Pathexp.rbegin() )
lpath.m_Pathexp.erase( --lpath.m_Pathexp.end() );
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if( lpath.m_Pathexp.empty() )
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return;
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m_paths.insert( sPL, lpath );
}
wxString FILENAME_RESOLVER::ShortenPath( const wxString& aFullPathName )
{
wxString fname = aFullPathName;
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if( m_paths.empty() )
createPathList();
std::lock_guard<std::mutex> lock( mutex_resolver );
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std::list< SEARCH_PATH >::const_iterator sL = m_paths.begin();
size_t idx;
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while( sL != m_paths.end() )
{
// undefined paths do not participate in the
// file name shortening procedure
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if( sL->m_Pathexp.empty() )
{
++sL;
continue;
}
wxFileName fpath;
// in the case of aliases, ensure that we use the most recent definition
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if( sL->m_Alias.StartsWith( "${" ) || sL->m_Alias.StartsWith( "$(" ) )
{
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wxString tpath = ExpandEnvVarSubstitutions( sL->m_Alias, m_project );
if( tpath.empty() )
{
++sL;
continue;
}
fpath.Assign( tpath, wxT( "" ) );
}
else
{
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fpath.Assign( sL->m_Pathexp, wxT( "" ) );
}
wxString fps = fpath.GetPathWithSep();
wxString tname;
idx = fname.find( fps );
if( idx == 0 )
{
fname = fname.substr( fps.size() );
#ifdef _WIN32
// ensure only the '/' separator is used in the internal name
fname.Replace( wxT( "\\" ), wxT( "/" ) );
#endif
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if( sL->m_Alias.StartsWith( "${" ) || sL->m_Alias.StartsWith( "$(" ) )
{
// old style ENV_VAR
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tname = sL->m_Alias;
tname.Append( "/" );
tname.append( fname );
}
else
{
// new style alias
tname = ":";
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tname.append( sL->m_Alias );
tname.append( ":" );
tname.append( fname );
}
return tname;
}
++sL;
}
#ifdef _WIN32
// it is strange to convert an MSWin full path to use the
// UNIX separator but this is done for consistency and can
// be helpful even when transferring project files from
// MSWin to *NIX.
fname.Replace( wxT( "\\" ), wxT( "/" ) );
#endif
return fname;
}
const std::list< SEARCH_PATH >* FILENAME_RESOLVER::GetPaths() const
{
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return &m_paths;
}
bool FILENAME_RESOLVER::SplitAlias( const wxString& aFileName,
wxString& anAlias, wxString& aRelPath ) const
{
anAlias.clear();
aRelPath.clear();
size_t searchStart = 0;
if( aFileName.StartsWith( wxT( ":" ) ) )
searchStart = 1;
size_t tagpos = aFileName.find( wxT( ":" ), searchStart );
if( tagpos == wxString::npos || tagpos == searchStart )
return false;
if( tagpos + 1 >= aFileName.length() )
return false;
anAlias = aFileName.substr( searchStart, tagpos - searchStart );
aRelPath = aFileName.substr( tagpos + 1 );
return true;
}
bool FILENAME_RESOLVER::ValidateFileName( const wxString& aFileName, bool& hasAlias ) const
{
// Rules:
// 1. The generic form of an aliased 3D relative path is:
// ALIAS:relative/path
// 2. ALIAS is a UTF string excluding wxT( "{}[]()%~<>\"='`;:.,&?/\\|$" )
// 3. The relative path must be a valid relative path for the platform
hasAlias = false;
if( aFileName.empty() )
return false;
wxString filename = aFileName;
wxString lpath;
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size_t aliasStart = aFileName.StartsWith( ':' ) ? 1 : 0;
size_t aliasEnd = aFileName.find( ':', aliasStart );
// ensure that the file separators suit the current platform
#ifdef __WINDOWS__
filename.Replace( wxT( "/" ), wxT( "\\" ) );
// if we see the :\ pattern then it must be a drive designator
if( aliasEnd != wxString::npos )
{
size_t pos1 = filename.find( wxT( ":\\" ) );
if( pos1 != wxString::npos && ( pos1 != aliasEnd || pos1 != 1 ) )
return false;
// if we have a drive designator then we have no alias
if( pos1 != wxString::npos )
aliasEnd = wxString::npos;
}
#else
filename.Replace( wxT( "\\" ), wxT( "/" ) );
#endif
// names may not end with ':'
if( aliasEnd == aFileName.length() -1 )
return false;
if( aliasEnd != wxString::npos )
{
// ensure the alias component is not empty
if( aliasEnd == aliasStart )
return false;
lpath = filename.substr( aliasStart, aliasEnd );
2016-06-09 05:48:49 +00:00
// check the alias for restricted characters
if( wxString::npos != lpath.find_first_of( wxT( "{}[]()%~<>\"='`;:.,&?/\\|$" ) ) )
return false;
hasAlias = true;
lpath = aFileName.substr( aliasEnd + 1 );
}
else
{
lpath = aFileName;
// in the case of ${ENV_VAR}|$(ENV_VAR)/path, strip the
// environment string before testing
aliasEnd = wxString::npos;
if( aFileName.StartsWith( "${" ) )
aliasEnd = aFileName.find( '}' );
else if( aFileName.StartsWith( "$(" ) )
aliasEnd = aFileName.find( ')' );
if( aliasEnd != wxString::npos )
lpath = aFileName.substr( aliasEnd + 1 );
}
// Test for forbidden chars in filenames. Should be wxFileName::GetForbiddenChars()
// On MSW, the list returned by wxFileName::GetForbiddenChars() contains separators
// '\'and '/' used here because lpath can be a full path.
// So remove separators
wxString lpath_no_sep = lpath;
#ifdef __WINDOWS__
lpath_no_sep.Replace( "/", " " );
lpath_no_sep.Replace( "\\", " " );
// A disk identifier is allowed, and therefore remove its separator
if( lpath_no_sep.Length() > 1 && lpath_no_sep[1] == ':' )
lpath_no_sep[1] = ' ';
#endif
if( wxString::npos != lpath_no_sep.find_first_of( wxFileName::GetForbiddenChars() ) )
return false;
return true;
}
bool FILENAME_RESOLVER::GetKicadPaths( std::list< wxString >& paths ) const
{
paths.clear();
if( !m_pgm )
return false;
bool hasKisys3D = false;
// iterate over the list of internally defined ENV VARs
// and add them to the paths list
ENV_VAR_MAP_CITER mS = m_pgm->GetLocalEnvVariables().begin();
ENV_VAR_MAP_CITER mE = m_pgm->GetLocalEnvVariables().end();
while( mS != mE )
{
// filter out URLs, template directories, and known system paths
if( mS->first == wxS( "KICAD_PTEMPLATES" )
|| mS->first == wxS( "KICAD6_FOOTPRINT_DIR" ) )
{
++mS;
continue;
}
if( wxString::npos != mS->second.GetValue().find( wxS( "://" ) ) )
{
++mS;
continue;
}
//also add the path without the ${} to act as legacy alias support for older files
paths.push_back( mS->first );
if( mS->first == wxS("KICAD6_3DMODEL_DIR") )
hasKisys3D = true;
++mS;
}
if( !hasKisys3D )
paths.emplace_back( wxS("KICAD6_3DMODEL_DIR") );
return true;
}