X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fconfig.cpp;h=816ee1abb0ea26140625d9ec13dacc518dc4987a;hb=54aab19ee471810a956e1fee4d3b962aaf9ae9b3;hp=50e0de9f9a165bfd9e461c6d8a194e1a756c316c;hpb=59ac0a44d6edf179c01604c6ced744873213f855;p=builder.git diff --git a/source/config.cpp b/source/config.cpp index 50e0de9..816ee1a 100644 --- a/source/config.cpp +++ b/source/config.cpp @@ -1,14 +1,44 @@ -#include +/* $Id$ + +This file is part of builder +Copyright © 2006-2007 Mikko Rasa, Mikkosoft Productions +Distributed under the LGPL +*/ + +#include +#include +#include +#include +#include +#include +#include "builder.h" #include "config.h" +#include "sourcepackage.h" using namespace std; using namespace Msp; +Config::Config(SourcePackage &p): + package(p), + freeze_mtime(false) +{ } + +/** +Adds a configuration option. + +@param n Option name +@param v Default value +@param d Description +*/ void Config::add_option(const string &n, const string &v, const string &d) { options.insert(OptionMap::value_type(n, Option(n, v, d))); } +/** +Gets the given option from the configuration. If the option doesn't exist, +an Exception is thrown. +*/ const Config::Option &Config::get_option(const string &name) const { OptionMap::const_iterator i=options.find(name); @@ -18,31 +48,197 @@ const Config::Option &Config::get_option(const string &name) const return i->second; } +/** +Checks whether an option with the given name exists. +*/ bool Config::is_option(const string &name) const { return options.count(name); } -bool Config::process(const RawOptionMap &opts) +/** +Selects the last profile used. If the profile cache file is not present, the +default profile is assumed. +*/ +void Config::select_last_profile() +{ + try + { + IO::File in((package.get_source()/".profile.cache").str()); + string profile; + in.getline(profile); + set_option("profile", profile); + } + catch(const IO::FileNotFound &) + { } + + 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()) + { + IO::File out((package.get_source()/".profile.cache").str(), IO::M_WRITE); + IO::print(out, "%s\n", profile); + } + + 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(RawOptionMap::const_iterator i=opts.begin(); i!=opts.end(); ++i) + 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) { - OptionMap::iterator j=options.find(i->first); - if(j!=options.end()) + bool changed=false; + for(OptionMap::iterator i=options.begin(); i!=options.end(); ++i) { - if(i->second!=j->second.value) + 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; - j->second.value=i->second; + } } + + if(!changed) + break; } +} - return changed; +void Config::save() const +{ + Path fn=package.get_source()/".options.cache"; + + OptionMap::const_iterator i=options.find("profile"); + if(i!=options.end()) + fn=package.get_source()/(".options."+i->second.value+".cache"); + + IO::File out(fn.str(), IO::M_WRITE); + + for(i=options.begin(); i!=options.end(); ++i) + IO::print(out, "option \"%s\" \"%s\";\n", i->second.name, i->second.value); +} + +bool Config::set_option(const string &opt, const string &val) +{ + bool result=false; + + OptionMap::iterator i=options.find(opt); + if(i!=options.end()) + { + if(i->second.value!=val) + result=true; + i->second.value=val; + } + + return result; +} + +void Config::load() +{ + Path fn=package.get_source()/".options.cache"; + + OptionMap::iterator i=options.find("profile"); + if(i!=options.end()) + fn=package.get_source()/(".options."+i->second.value+".cache"); + + try + { + IO::File in(fn.str()); + + mtime=Time::TimeStamp::from_unixtime(stat(fn).st_mtime); + + DataFile::Parser parser(in, fn.str()); + Loader loader(*this); + loader.load(parser); + } + catch(const SystemError &) + { } } + Config::Option::Option(const string &n, const string &v, const string &d): name(n), defv(v), descr(d), value(v) { } + + +Config::Loader::Loader(Config &c): + conf(c) +{ + add("option", &Loader::option); +} + +void Config::Loader::option(const string &n, const string &v) +{ + conf.set_option(n, v); +}