wxArrayString EnvironmentConfig::GetActiveSetEnvNames(bool includeWorkspace, const wxString& project)
{
//read the environments variables
EvnVarList vars;
ReadObject(wxT("Variables"), &vars);
wxArrayString envnames;
// get the active environment variables set
EnvMap variables = vars.GetVariables(wxEmptyString, includeWorkspace, project, wxEmptyString);
for(size_t i=0; i<variables.GetCount(); ++i) {
wxString key, val;
variables.Get(i, key, val);
envnames.Add( key );
}
return envnames;
}
void EnvironmentConfig::ApplyEnv(wxStringMap_t *overrideMap, const wxString &project, const wxString &config)
{
// We lock the CS here and it will be released in UnApplyEnv
// this is safe to call without Locker since the UnApplyEnv
// will always be called after ApplyEnv (ApplyEnv and UnApplyEnv are
// protected functions that can only be called from EnvSetter class
// which always call UnApplyEnv in its destructor)
m_cs.Enter();
++m_envApplied;
if ( m_envApplied > 1 ) {
//CL_DEBUG("Thread-%d: Applying environment variables... (not needed)", (int)wxThread::GetCurrentId());
return;
}
//CL_DEBUG("Thread-%d: Applying environment variables...", (int)wxThread::GetCurrentId());
//read the environments variables
EvnVarList vars;
ReadObject(wxT("Variables"), &vars);
// get the active environment variables set
EnvMap variables = vars.GetVariables(wxEmptyString, true, project, config);
// if we have an "override map" place all the entries from the override map
// into the global map before applying the environment
if(overrideMap) {
wxStringMap_t::iterator it = overrideMap->begin();
for(; it != overrideMap->end(); it++) {
variables.Put(it->first, it->second);
}
}
m_envSnapshot.clear();
for (size_t i=0; i<variables.GetCount(); i++) {
wxString key, val;
variables.Get(i, key, val);
//keep old value before changing it
wxString oldVal(wxEmptyString);
if( wxGetEnv(key, &oldVal) == false ) {
oldVal = __NO_SUCH_ENV__;
}
// keep the old value, however, don't override it if it
// already exists as it might cause the variable to grow in size...
// Simple case:
// PATH=$(PATH);\New\Path
// PATH=$(PATH);\Another\New\Path
// If we replace the value, PATH will contain the original PATH + \New\Path
if ( m_envSnapshot.count( key ) == 0 ) {
m_envSnapshot.insert( std::make_pair( key, oldVal ) );
}
// Incase this line contains other environment variables, expand them before setting this environment variable
wxString newVal = DoExpandVariables(val);
//set the new value
wxSetEnv(key, newVal);
}
}