Symbol library table remapping fixes.

Use GetPath() instead of GetFullPath() when initializing environment
variable table entries KICAD_SYMBOL_DIR and KICAD_PTEMPALTE due to
unexpected trailing path separator which was causing find libraries
by URI to fail.

Don't create a project symbol library table when there are no libraries
not found in the global symbol library table.

Don't add non-existent libraries to project symbol library table.

Clear symbol library table when loading a new schematic.

Minor remapping status message improvements.

common/pgm_base.cpp

@@ -493,7 +493,7 @@ bool PGM_BASE::InitPgm()
         tmpFileName.AppendDir( wxT( "modules" ) );
         envVarItem.SetDefinedExternally( false );
     }
-    envVarItem.SetValue( tmpFileName.GetFullPath() );
+    envVarItem.SetValue( tmpFileName.GetPath() );
     m_local_env_vars[ envVarName ] = envVarItem;
 
     // KISYS3DMOD
@@ -524,7 +524,7 @@ bool PGM_BASE::InitPgm()
         tmpFileName.AppendDir( wxT( "template" ) );
         envVarItem.SetDefinedExternally( false );
     }
-    envVarItem.SetValue( tmpFileName.GetFullPath() );
+    envVarItem.SetValue( tmpFileName.GetPath() );
     m_local_env_vars[ envVarName ] = envVarItem;
 
     // KICAD_SYMBOLS
@@ -540,7 +540,7 @@ bool PGM_BASE::InitPgm()
         tmpFileName.AppendDir( wxT( "library" ) );
         envVarItem.SetDefinedExternally( false );
     }
-    envVarItem.SetValue( tmpFileName.GetFullPath() );
+    envVarItem.SetValue( tmpFileName.GetPath() );
     m_local_env_vars[ envVarName ] = envVarItem;
 
     ReadPdfBrowserInfos();      // needs m_common_settings

eeschema/dialogs/dialog_symbol_remap.cpp

@@ -157,25 +157,43 @@ void DIALOG_SYMBOL_REMAP::createProjectSymbolLibTable( REPORTER& aReporter )
             if( fullFileName.IsEmpty() )
                 fullFileName = lib->GetFullFileName();
 
-            msg.Printf( _( "Adding library '%s', file '%s' to project symbol library table." ),
-                        libName, fullFileName );
-            aReporter.Report( msg, REPORTER::RPT_INFO );
+            wxFileName tmpFn = fullFileName;
 
-            prjLibTable.InsertRow( new SYMBOL_LIB_TABLE_ROW( libName, fullFileName, pluginType ) );
-        }
-
-        wxFileName fn( Prj().GetProjectPath(), SYMBOL_LIB_TABLE::GetSymbolLibTableFileName() );
+            // Don't add symbol libraries that do not exist.
+            if( tmpFn.Normalize() && tmpFn.FileExists() )
+            {
+                msg.Printf( _( "Adding library '%s', file '%s' to project symbol library table." ),
+                            libName, fullFileName );
+                aReporter.Report( msg, REPORTER::RPT_INFO );
 
-        try
-        {
-            FILE_OUTPUTFORMATTER formatter( fn.GetFullPath() );
-            prjLibTable.Format( &formatter, 0 );
+                prjLibTable.InsertRow( new SYMBOL_LIB_TABLE_ROW( libName, fullFileName,
+                                                                 pluginType ) );
+            }
+            else
+            {
+                msg.Printf( _( "Library '%s' not found." ), fullFileName );
+                aReporter.Report( msg, REPORTER::RPT_WARNING );
+            }
         }
-        catch( const IO_ERROR& ioe )
+
+        // Don't save empty project symbol library table.
+        if( !prjLibTable.IsEmpty() )
         {
-            msg.Printf( _( "Failed to write project symbol library table. Error:\n  %s" ),
-                        ioe.What() );
-            aReporter.Report( msg, REPORTER::RPT_ERROR );
+            wxFileName fn( Prj().GetProjectPath(), SYMBOL_LIB_TABLE::GetSymbolLibTableFileName() );
+
+            try
+            {
+                FILE_OUTPUTFORMATTER formatter( fn.GetFullPath() );
+                prjLibTable.Format( &formatter, 0 );
+            }
+            catch( const IO_ERROR& ioe )
+            {
+                msg.Printf( _( "Failed to write project symbol library table. Error:\n  %s" ),
+                            ioe.What() );
+                aReporter.Report( msg, REPORTER::RPT_ERROR );
+            }
+
+            aReporter.Report( _( "Created project symbol library table.\n" ), REPORTER::RPT_INFO );
         }
     }
 }

eeschema/eeschema_config.cpp

@@ -153,6 +153,7 @@ void LIB_EDIT_FRAME::InstallConfigFrame( wxCommandEvent& event )
         // Force a reload of the PART_LIBS
         prj->SetElem( PROJECT::ELEM_SCH_PART_LIBS, NULL );
         prj->SetElem( PROJECT::ELEM_SCH_SEARCH_STACK, NULL );
+        prj->SetElem( PROJECT::ELEM_SYMBOL_LIB_TABLE, NULL );
 
         // Update the schematic symbol library links.
         SCH_SCREENS schematic;
@@ -232,6 +233,7 @@ void SCH_EDIT_FRAME::InstallConfigFrame( wxCommandEvent& event )
         // Force a reload of the PART_LIBS
         prj->SetElem( PROJECT::ELEM_SCH_PART_LIBS, NULL );
         prj->SetElem( PROJECT::ELEM_SCH_SEARCH_STACK, NULL );
+        prj->SetElem( PROJECT::ELEM_SYMBOL_LIB_TABLE, NULL );
 
         // Update the schematic symbol library links.
         SCH_SCREENS schematic;