-/**
-Selects the last profile used. If the profile cache file is not present, the
-default profile is assumed.
-*/
-void Config::select_last_profile()
-{
- ifstream in((package.get_source()/".profile.cache").str().c_str());
- if(in)
- {
- string profile;
- getline(in, profile);
- set_option("profile", profile);
- }
-
- freeze_mtime=true;
- package.get_builder().apply_profile_template(*this, get_option("profile").value);
- freeze_mtime=false;
-
- load();
-}
-
-/**
-Selects the given profile. The profile cache file is updated as well, unless
---dry-run was given.
-*/
-void Config::select_profile(const string &profile)
-{
- set_option("profile", profile);
-
- if(!package.get_builder().get_dry_run())
- {
- ofstream out((package.get_source()/".profile.cache").str().c_str());
- if(out)
- out<<profile<<'\n';
- }
-
- freeze_mtime=true;
- package.get_builder().apply_profile_template(*this, profile);
- freeze_mtime=false;
-
- load();
-}
-
-/**
-Processes options from the given raw option map. Nonexistent options are
-ignored. If any options were changed, the mtime of the configuration is updated
-to the current time.
-
-@param opts A map to process options from
-
-@return Whether any option values were changed
-*/
-bool Config::update(const StringMap &opts)
-{
- bool changed=false;
- for(StringMap::const_iterator i=opts.begin(); i!=opts.end(); ++i)
- {
- if(set_option(i->first, i->second) && i->first!="profile")
- changed=true;
- }
-
- if(changed && !freeze_mtime)
- mtime=Time::now();
-
- return changed;
-}
-
-/**
-Expands any variable references in options.
-*/
-void Config::finish()
-{
- for(unsigned n=0; n<20; ++n)
- {
- bool changed=false;
- for(OptionMap::iterator i=options.begin(); i!=options.end(); ++i)
- {
- Option &opt=i->second;
- unsigned dollar=0;
- while((dollar=opt.value.find('$', dollar))!=string::npos)
- {
- unsigned end;
- string var;
- if(opt.value[dollar+1]=='{')
- {
- end=opt.value.find('}', dollar+2);
- if(end==string::npos)
- throw Exception("Unterminated variable reference");
- var=opt.value.substr(dollar+2, end-dollar-2);
- ++end;
- }
- else
- {
- for(end=dollar+1; (isalnum(opt.value[end]) && opt.value[end]!='_'); ++end);
- var=opt.value.substr(dollar+1, end-dollar-1);
- }
-
- string value;
- if(is_option(var))
- value=get_option(var).value;
- else
- value=getenv(var.c_str());
-
- opt.value.replace(dollar, end-dollar, value);
-
- dollar+=value.size();
- changed=true;
- }
- }
-
- if(!changed)
- break;
- }
-}
-