]> git.tdb.fi Git - builder.git/blobdiff - source/builder.cpp
Use ObjectLoaders where appropriate
[builder.git] / source / builder.cpp
index d16dd47532ca8d5cf4598a4bd74314cca3a50920..94bbce04d3a552480994b2d4597fdeb5e154f3b1 100644 (file)
@@ -1,10 +1,3 @@
-/* $Id$
-
-This file is part of builder
-Copyright © 2006-2010  Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
 #include <set>
 #include <cstdlib>
 #include <msp/core/getopt.h>
@@ -20,44 +13,36 @@ Distributed under the LGPL
 #include <msp/strings/utils.h>
 #include <msp/time/units.h>
 #include <msp/time/utils.h>
-#include "action.h"
 #include "analyzer.h"
 #include "binarypackage.h"
 #include "builder.h"
-#include "header.h"
-#include "install.h"
-#include "misc.h"
+#include "copy.h"
+#include "gnuarchiver.h"
+#include "gnuccompiler.h"
+#include "gnucxxcompiler.h"
+#include "gnulinker.h"
+#include "installedfile.h"
 #include "package.h"
-#include "pkgconfig.h"
+#include "pkgconfiggenerator.h"
 #include "sharedlibrary.h"
 #include "sourcepackage.h"
-#include "systemlibrary.h"
-#include "unlink.h"
+#include "tar.h"
+#include "task.h"
 #include "virtualtarget.h"
 
 using namespace std;
 using namespace Msp;
 
-namespace {
-
-void update_hash(string &hash, const string &value)
-{
-       for(unsigned i=0; i<value.size(); ++i)
-               hash[i%hash.size()] ^= value[i];
-}
-
-}
-
-
 Builder::Builder(int argc, char **argv):
+       package_manager(*this),
        main_pkg(0),
        native_arch(*this, string()),
+       vfs(*this),
        analyzer(0),
        build(false),
        clean(0),
        dry_run(false),
        help(false),
-       verbose(1),
        show_progress(false),
        build_file("Build"),
        jobs(1),
@@ -73,6 +58,10 @@ Builder::Builder(int argc, char **argv):
        StringList cmdline_warn;
        string prfx;
        string arch;
+       bool no_externals = false;
+       unsigned verbose = 1;
+       bool silent = false;
+       list<string> log_channels;
 
        GetOpt getopt;
        getopt.add_option('a', "analyze",    analyze_mode,  GetOpt::REQUIRED_ARG).set_help("Perform analysis.  MODE can be deps, alldeps or rebuild.", "MODE");
@@ -81,7 +70,9 @@ Builder::Builder(int argc, char **argv):
        getopt.add_option('f', "file",       build_file,    GetOpt::REQUIRED_ARG).set_help("Read info from FILE instead of Build.", "FILE");
        getopt.add_option('h', "help",       help,          GetOpt::NO_ARG).set_help("Print this message.");
        getopt.add_option('j', "jobs",       jobs,          GetOpt::REQUIRED_ARG).set_help("Run NUM commands at once, whenever possible.", "NUM");
+       getopt.add_option('l', "log",        log_channels,  GetOpt::REQUIRED_ARG).set_help("Set log channels to be displayed.", "LIST");
        getopt.add_option('n', "dry-run",    dry_run,       GetOpt::NO_ARG).set_help("Don't actually do anything, only show what would be done.");
+       getopt.add_option('s', "silent",     silent,        GetOpt::NO_ARG).set_help("Don't print any messages other than errors.");
        getopt.add_option('v', "verbose",    verbose,       GetOpt::NO_ARG).set_help("Print more information about what's going on.");
        getopt.add_option('x', "no-externals",  no_externals, GetOpt::NO_ARG).set_help("Do not load external source packages.");
        getopt.add_option('A', "conf-all",   conf_all,      GetOpt::NO_ARG).set_help("Apply configuration to all packages.");
@@ -99,6 +90,40 @@ Builder::Builder(int argc, char **argv):
        helpmsg = getopt.generate_help();
        getopt(argc, argv);
 
+       if(silent)
+               --verbose;
+       if(verbose>=1)
+       {
+               logger.enable_channel("summary");
+               logger.enable_channel("tasks");
+       }
+       if(verbose>=2)
+       {
+               logger.enable_channel("packages");
+               logger.enable_channel("commands");
+       }
+       if(verbose>=3)
+       {
+               logger.enable_channel("packagemgr");
+               logger.enable_channel("configure");
+       }
+       if(verbose>=4)
+       {
+               logger.enable_channel("files");
+               logger.enable_channel("auxcommands");
+       }
+       if(verbose>=5)
+       {
+               logger.enable_channel("tools");
+               logger.enable_channel("vfs");
+       }
+       for(list<string>::const_iterator i=log_channels.begin(); i!=log_channels.end(); ++i)
+       {
+               vector<string> parts = split(*i, ',');
+               for(vector<string>::const_iterator j=parts.begin(); j!=parts.end(); ++j)
+                       logger.enable_channel(*j);
+       }
+
        if(!analyze_mode.empty())
        {
                analyzer = new Analyzer(*this);
@@ -138,11 +163,7 @@ Builder::Builder(int argc, char **argv):
 
        cwd = FS::getcwd();
 
-       native_arch.set_tool("CC",  "gcc");
-       native_arch.set_tool("CXX", "g++");
-       native_arch.set_tool("LD",  "gcc");
-       native_arch.set_tool("LXX", "g++");
-       native_arch.set_tool("AR",  "ar");
+       package_manager.set_no_externals(no_externals);
 
        load_build_file((FS::get_sys_data_dir(argv[0], "builder")/"builderrc").str());
        load_build_file((FS::get_user_data_dir("builder")/"rc").str());
@@ -183,14 +204,17 @@ Builder::Builder(int argc, char **argv):
                warnings.insert(warnings.end(), warns.begin(), warns.end());
        }
 
-       pkg_path.push_back(cwd/".");
-       pkg_path.push_back(cwd/"..");
+       toolchain.add_tool(new GnuCCompiler(*this, *current_arch));
+       toolchain.add_tool(new GnuCxxCompiler(*this, *current_arch));
+       toolchain.add_tool(new GnuLinker(*this, *current_arch));
+       toolchain.add_tool(new GnuArchiver(*this, *current_arch));
+       toolchain.add_tool(new Copy(*this));
+       toolchain.add_tool(new Tar(*this));
+       toolchain.add_tool(new PkgConfigGenerator(*this));
 }
 
 Builder::~Builder()
 {
-       for(PackageMap::iterator i=packages.begin(); i!=packages.end(); ++i)
-               delete i->second;
        for(TargetMap::iterator i=targets.begin(); i!=targets.end(); ++i)
                delete i->second;
        delete analyzer;
@@ -247,52 +271,47 @@ int Builder::main()
        if(create_targets())
                return 1;
 
-       if(verbose>=2)
-       {
-               IO::print("Building on %s, for %s%s\n", native_arch.get_name(),
-                       current_arch->get_name(), (current_arch->is_native() ? " (native)" : ""));
-               IO::print("Prefix is %s\n", prefix);
-       }
+       logger.log("environment", format("Building on %s, for %s%s", native_arch.get_name(),
+               current_arch->get_name(), (current_arch->is_native() ? " (native)" : "")));
+       logger.log("environment", format("Prefix is %s", prefix));
 
-       if(verbose>=1)
+       const PackageManager::PackageMap &packages = package_manager.get_packages();
+       list<string> package_details;
+       for(PackageManager::PackageMap::const_iterator i=packages.begin(); i!=packages.end(); ++i)
        {
-               unsigned n_packages = 0;
-               for(PackageMap::const_iterator i=packages.begin(); i!=packages.end(); ++i)
-                       if(i->second && i->second->is_configured())
-                               ++n_packages;
-               IO::print("%d active packages, %d targets\n", n_packages, targets.size());
-       }
+               if(!i->second || !i->second->is_configured())
+                       continue;
 
-       if(verbose>=2)
-       {
-               for(PackageMap::const_iterator i=packages.begin(); i!=packages.end(); ++i)
+               string line = i->second->get_name();
+               if(dynamic_cast<SourcePackage *>(i->second))
                {
-                       if(!i->second->is_configured())
-                               continue;
+                       line += '*';
 
-                       IO::print(" %s", i->second->get_name());
-                       if(dynamic_cast<SourcePackage *>(i->second))
-                               IO::print("*");
                        unsigned count = 0;
                        unsigned to_be_built = 0;
                        for(TargetMap::iterator j=targets.begin(); j!=targets.end(); ++j)
                                if(j->second->get_package()==i->second)
                                {
                                        ++count;
-                                       if(j->second->get_rebuild())
+                                       if(j->second->needs_rebuild())
                                                ++to_be_built;
                                }
                        if(count)
                        {
-                               IO::print(" (%d targets", count);
+                               line += format(" (%d targets", count);
                                if(to_be_built)
-                                       IO::print(", %d to be built", to_be_built);
-                               IO::print(")");
+                                       line += format(", %d to be built", to_be_built);
+                               line += ')';
                        }
-                       IO::print("\n");
                }
+
+               package_details.push_back(line);
        }
 
+       logger.log("summary", format("%d active packages, %d targets", package_details.size(), targets.size()));
+       for(list<string>::const_iterator i=package_details.begin(); i!=package_details.end(); ++i)
+               logger.log("packages", *i);
+
        if(analyzer)
                analyzer->analyze();
 
@@ -314,175 +333,14 @@ int Builder::main()
        return exit_code;
 }
 
-string Builder::run_pkgconfig(const string &pkg, const string &what)
-{
-       list<string> argv;
-       argv.push_back("pkg-config");
-       if(what=="cflags" || what=="libs")
-               argv.push_back("--"+what);
-       else if(what=="flags")
-       {
-               argv.push_back("--cflags");
-               argv.push_back("--libs");
-       }
-       else
-               argv.push_back("--variable="+what);
-       argv.push_back(pkg);
-
-       if(verbose>=4)
-               IO::print("Running %s\n", join(argv.begin(), argv.end()));
-
-       int status;
-       string res = run_command(argv, &status);
-       if(status)
-               throw runtime_error(format("pkg-config for package %s failed", pkg));
-
-       return res;
-}
-
-Package *Builder::get_package(const string &name)
-{
-       PackageMap::iterator i = packages.find(format("%s/%s", name, current_arch->get_system()));
-       if(i==packages.end())
-               i = packages.find(name);
-       if(i!=packages.end())
-               return i->second;
-
-       if(!no_externals)
-       {
-               FS::Path path = get_package_location(name);
-               if(!path.empty() && !load_build_file(path/"Build"))
-               {
-                       i = packages.find(name);
-                       if(i!=packages.end())
-                               return i->second;
-               }
-       }
-
-       Package *pkg = 0;
-       try
-       {
-               // Package source not found - create a binary package
-               pkg = BinaryPackage::from_pkgconfig(*this, name);
-       }
-       catch(...)
-       {
-               problem(name, "not found");
-       }
-
-       packages.insert(PackageMap::value_type(name, pkg));
-
-       return pkg;
-}
-
 Target *Builder::get_target(const string &n) const
 {
-       // XXX Used for getting targets by path.  get_target(const FS::Path &)?
        TargetMap::const_iterator i = targets.find(n);
        if(i!=targets.end())
                return i->second;
        return 0;
 }
 
-Target *Builder::get_header(const string &include, const FS::Path &from, const list<string> &path)
-{
-       string hash(8, 0);
-       if(include[0]=='\"')
-               update_hash(hash, from.str());
-       for(list<string>::const_iterator i=path.begin(); i!=path.end(); ++i)
-               update_hash(hash, *i);
-
-       string id = hash+include;
-       TargetMap::iterator i = includes.find(id);
-       if(i!=includes.end())
-               return i->second;
-
-       static string cxx_ver;
-       if(cxx_ver.empty())
-       {
-               StringList argv;
-               argv.push_back(current_arch->get_tool("CXX"));
-               argv.push_back("--version");
-               if(RegMatch m = Regex("[0-9]\\.[0-9.]+").match(run_command(argv)))
-               {
-                       cxx_ver = m[0].str;
-                       while(!cxx_ver.empty() && !FS::is_dir(FS::Path("/usr/include/c++")/cxx_ver))
-                       {
-                               string::size_type dot = cxx_ver.rfind('.');
-                               if(dot==string::npos)
-                                       break;
-                               cxx_ver.erase(dot);
-                       }
-                       if(verbose>=5)
-                               IO::print("C++ version is %s\n", cxx_ver);
-               }
-               else
-                       cxx_ver = "-";
-       }
-
-       string fn = include.substr(1);
-       if(verbose>=5)
-               IO::print("Looking for include %s from %s with path %s\n", fn, from, join(path.begin(), path.end()));
-
-       StringList syspath;
-       if(current_arch->is_native())
-               syspath.push_back("/usr/include");
-       else
-               syspath.push_back("/usr/"+current_arch->get_cross_prefix()+"/include");
-       if(cxx_ver!="-")
-               syspath.push_back((FS::Path("/usr/include/c++/")/cxx_ver).str());
-
-       Target *tgt = 0;
-       if(include[0]=='\"')
-               tgt = get_header(FS::Path(from)/fn);
-       for(list<string>::const_iterator j=path.begin(); (!tgt && j!=path.end()); ++j)
-               tgt = get_header(cwd/ *j/fn);
-       for(list<string>::const_iterator j=syspath.begin(); (!tgt && j!=syspath.end()); ++j)
-               tgt = get_header(FS::Path(*j)/fn);
-
-       includes.insert(TargetMap::value_type(id, tgt));
-
-       return tgt;
-}
-
-Target *Builder::get_library(const string &lib, const list<string> &path, LibMode mode)
-{
-       string hash(8, 0);
-       for(list<string>::const_iterator i=path.begin(); i!=path.end(); ++i)
-               update_hash(hash, *i);
-
-       string id = hash+string(1, mode)+lib;
-       TargetMap::iterator i = libraries.find(id);
-       if(i!=libraries.end())
-               return i->second;
-
-       StringList syspath;
-       if(current_arch->is_native())
-       {
-               syspath.push_back("/lib");
-               syspath.push_back("/usr/lib");
-               if(current_arch->match_name("pc-32-linux"))
-                       syspath.push_back("/usr/lib/i386-linux-gnu");
-               else if(current_arch->match_name("pc-64-linux"))
-                       syspath.push_back("/usr/lib/x86_64-linux-gnu");
-       }
-       else
-               syspath.push_back("/usr/"+current_arch->get_cross_prefix()+"/lib");
-
-       if(verbose>=5)
-               IO::print("Looking for library %s with path %s\n", lib, join(path.begin(), path.end()));
-
-       Target *tgt = 0;
-       for(StringList::const_iterator j=path.begin(); (!tgt && j!=path.end()); ++j)
-               tgt = get_library(lib, cwd/ *j, mode);
-       for(StringList::iterator j=syspath.begin(); (!tgt && j!=syspath.end()); ++j)
-               tgt = get_library(lib, *j, mode);
-
-       libraries.insert(TargetMap::value_type(id, tgt));
-
-       return tgt;
-}
-
 void Builder::apply_profile_template(Config &config, const string &pt) const
 {
        vector<string> parts = split(pt, '-');
@@ -502,16 +360,9 @@ void Builder::problem(const string &p, const string &d)
        problems.push_back(Problem(p, d));
 }
 
-void Builder::add_target(FileTarget *t)
-{
-       targets.insert(TargetMap::value_type(t->get_path().str(), t));
-       new_tgts.push_back(t);
-}
-
-void Builder::add_target(VirtualTarget *t)
+void Builder::add_target(Target *t)
 {
        targets.insert(TargetMap::value_type(t->get_name(), t));
-       new_tgts.push_back(t);
 }
 
 void Builder::usage(const char *reason, const char *argv0, bool brief)
@@ -530,69 +381,18 @@ void Builder::usage(const char *reason, const char *argv0, bool brief)
        }
 }
 
-FS::Path Builder::get_package_location(const string &name)
-{
-       if(verbose>=3)
-               IO::print("Looking for package %s\n", name);
-
-       try
-       {
-               // Try to get source directory with pkgconfig
-               string srcdir = strip(run_pkgconfig(name, "source"));
-               if(!srcdir.empty())
-                       return srcdir;
-       }
-       catch(...)
-       { }
-
-       if(pkg_dirs.empty())
-       {
-               for(list<FS::Path>::const_iterator i=pkg_path.begin(); i!=pkg_path.end(); ++i)
-               {
-                       list<string> files = list_files(*i);
-                       for(list<string>::const_iterator j=files.begin(); j!=files.end(); ++j)
-                       {
-                               FS::Path full = *i / *j;
-                               if(FS::exists(full/"Build"))
-                                       pkg_dirs.push_back(full);
-                       }
-               }
-               if(verbose>=3)
-                       IO::print("%d packages found in path\n", pkg_dirs.size());
-       }
-
-       bool msp = !name.compare(0, 3, "msp");
-       for(list<FS::Path>::const_iterator i=pkg_dirs.begin(); i!=pkg_dirs.end(); ++i)
-       {
-               string base = basename(*i);
-               unsigned dash = base.rfind('-');
-
-               if(!base.compare(0, dash, name))
-                       return *i;
-               else if(msp && !base.compare(0, dash-3, name, 3, string::npos))
-                       return *i;
-       }
-
-       return FS::Path();
-}
-
 int Builder::load_build_file(const FS::Path &fn)
 {
-       try
-       {
-               IO::BufferedFile in(fn.str());
+       if(!FS::exists(fn))
+               return -1;
 
-               if(verbose>=3)
-                       IO::print("Reading %s\n", fn);
+       IO::BufferedFile in(fn.str());
 
-               DataFile::Parser parser(in, fn.str());
-               Loader loader(*this, fn.subpath(0, fn.size()-1));
-               loader.load(parser);
-       }
-       catch(const IO::file_not_found &)
-       {
-               return -1;
-       }
+       logger.log("files", format("Reading %s", fn));
+
+       DataFile::Parser parser(in, fn.str());
+       Loader loader(*this, fn.subpath(0, fn.size()-1));
+       loader.load(parser);
 
        return 0;
 }
@@ -610,47 +410,10 @@ int Builder::create_targets()
        Target *tarballs = new VirtualTarget(*this, "tarballs");
        world->add_depend(tarballs);
 
-       for(PackageMap::const_iterator i=packages.begin(); i!=packages.end(); ++i)
-       {
-               if(!i->second || !i->second->is_configured())
-                       continue;
-
-               SourcePackage *spkg = dynamic_cast<SourcePackage *>(i->second);
-               if(!spkg)
-                       continue;
-
-               const ComponentList &components = spkg->get_components();
-               for(ComponentList::const_iterator j=components.begin(); j!=components.end(); ++j)
-                       j->create_targets();
-
-               if(spkg->get_install_flags()&(SourcePackage::LIB|SourcePackage::INCLUDE))
-               {
-                       PkgConfig *pc = new PkgConfig(*this, *spkg);
-                       install->add_depend(new Install(*this, *spkg, *pc));
-               }
-       }
-
-       // Find dependencies until no new targets are created
-       while(!new_tgts.empty())
-       {
-               Target *tgt = new_tgts.front();
-               new_tgts.erase(new_tgts.begin());
-               tgt->find_depends();
-               if(!tgt->get_depends_ready())
-                       new_tgts.push_back(tgt);
-       }
-
-       // Apply what-ifs
-       for(StringList::iterator i=what_if.begin(); i!=what_if.end(); ++i)
-       {
-               FileTarget *tgt = dynamic_cast<FileTarget *>(get_target((cwd/ *i).str()));
-               if(!tgt)
-               {
-                       IO::print(IO::cerr, "Unknown what-if target %s\n", *i);
-                       return -1;
-               }
-               tgt->touch();
-       }
+       const PackageManager::PackageMap &packages = package_manager.get_packages();
+       for(PackageManager::PackageMap::const_iterator i=packages.begin(); i!=packages.end(); ++i)
+               if(i->second && i->second->is_configured())
+                       i->second->create_targets();
 
        // Make the cmdline target depend on all targets mentioned on the command line
        Target *cmdline = new VirtualTarget(*this, "cmdline");
@@ -658,7 +421,9 @@ int Builder::create_targets()
        {
                Target *tgt = get_target(*i);
                if(!tgt)
-                       tgt = get_target((cwd/ *i).str());
+                       tgt = vfs.get_target(*i);
+               if(!tgt)
+                       tgt = vfs.get_target(cwd/ *i);
                if(!tgt)
                {
                        IO::print("I don't know anything about %s\n", *i);
@@ -670,72 +435,29 @@ int Builder::create_targets()
 
        cmdline->prepare();
 
-       for(PackageMap::iterator i=packages.begin(); i!=packages.end(); ++i)
-               if(SourcePackage *spkg = dynamic_cast<SourcePackage *>(i->second))
-                       spkg->get_deps_cache().save();
-
-       return 0;
-}
-
-Target *Builder::get_header(const FS::Path &fn)
-{
-       Target *tgt = get_target(fn.str());
-       if(tgt) return tgt;
-
-       if(FS::is_reg(fn))
-       {
-               tgt = new SystemHeader(*this, fn.str());
-               return tgt;
-       }
-       return 0;
-}
-
-Target *Builder::get_library(const string &lib, const FS::Path &path, LibMode mode)
-{
-       // Populate a list of candidate filenames
-       StringList candidates;
-
-       if(mode!=ALL_STATIC)
+       // Apply what-ifs
+       for(StringList::iterator i=what_if.begin(); i!=what_if.end(); ++i)
        {
-               // XXX Should probably let the Architecture populate the list
-               if(current_arch->get_system()=="windows")
+               FileTarget *tgt = vfs.get_target(cwd/ *i);
+               if(!tgt)
                {
-                       candidates.push_back("lib"+lib+".dll");
-                       candidates.push_back(lib+".dll");
+                       IO::print(IO::cerr, "Unknown what-if target %s\n", *i);
+                       return -1;
                }
-               else
-                       candidates.push_back("lib"+lib+".so");
+               tgt->touch();
        }
 
-       /* Static libraries are always considered, since sometimes shared versions
-       may not be available */
-       candidates.push_back("lib"+lib+".a");
-       if(current_arch->get_system()=="windows")
-               candidates.push_back("lib"+lib+".dll.a");
-
-       for(StringList::iterator i=candidates.begin(); i!=candidates.end(); ++i)
+       if(build_all)
        {
-               string full = (path/ *i).str();
-               Target *tgt = get_target(full);
-
-               if(tgt)
-               {
-                       Target *real_tgt = tgt->get_real_target();
-
-                       /* Ignore dynamic libraries from local packages unless library mode is
-                       DYNAMIC */
-                       if(dynamic_cast<SharedLibrary *>(real_tgt) && mode!=DYNAMIC)
-                               continue;
-                       else if(tgt)
-                               return tgt;
-               }
-               else if(FS::is_reg(full))
-               {
-                       tgt = new SystemLibrary(*this, full);
-                       return tgt;
-               }
+               for(TargetMap::iterator i=targets.begin(); i!=targets.end(); ++i)
+                       if(i->second->is_buildable() && !i->second->needs_rebuild())
+                               i->second->force_rebuild();
        }
 
+       for(PackageManager::PackageMap::const_iterator i=packages.begin(); i!=packages.end(); ++i)
+               if(SourcePackage *spkg = dynamic_cast<SourcePackage *>(i->second))
+                       spkg->get_deps_cache().save();
+
        return 0;
 }
 
@@ -745,18 +467,17 @@ int Builder::do_build()
 
        unsigned total = 0;
        for(map<string, Target *>::const_iterator i=targets.begin(); i!=targets.end(); ++i)
-               if(i->second->is_buildable() && i->second->get_rebuild())
+               if(i->second->is_buildable() && i->second->needs_rebuild())
                        ++total;
 
        if(!total)
        {
-               IO::print("Already up to date\n");
+               logger.log("summary", "Already up to date");
                return 0;
        }
-       if(verbose>=1)
-               IO::print("Will build %d target%s\n", total, (total!=1 ? "s" : ""));
+       logger.log("summary", format("Will build %d target%s", total, (total!=1 ? "s" : "")));
 
-       vector<Action *> actions;
+       vector<Task *> tasks;
 
        unsigned count = 0;
 
@@ -765,36 +486,50 @@ int Builder::do_build()
 
        while(!finish)
        {
-               if(actions.size()<jobs && !fail)
+               if(tasks.size()<jobs && !fail)
                {
                        Target *tgt = cmdline->get_buildable_target();
                        if(tgt)
                        {
-                               Action *action = tgt->build();
-                               if(action)
-                                       actions.push_back(action);
+                               if(tgt->get_tool())
+                                       logger.log("tasks", format("%-4s  %s", tgt->get_tool()->get_tag(), tgt->get_name()));
+                               Task *task = tgt->build();
+                               if(task)
+                               {
+                                       logger.log("commands", format("%s", task->get_command()));
+                                       if(dry_run)
+                                       {
+                                               task->signal_finished.emit(true);
+                                               delete task;
+                                       }
+                                       else
+                                       {
+                                               task->start();
+                                               tasks.push_back(task);
+                                       }
+                               }
 
                                if(show_progress)
                                        IO::print("%d of %d target%s built\033[1G", count, total, (total!=1 ? "s" : ""));
                        }
-                       else if(actions.empty())
+                       else if(tasks.empty())
                                finish = true;
                }
                else
                        Time::sleep(10*Time::msec);
 
-               for(unsigned i=0; i<actions.size();)
+               for(unsigned i=0; i<tasks.size();)
                {
-                       int status = actions[i]->check();
-                       if(status>=0)
+                       Task::Status status = tasks[i]->check();
+                       if(status!=Task::RUNNING)
                        {
                                ++count;
 
-                               delete actions[i];
-                               actions.erase(actions.begin()+i);
-                               if(status>0)
+                               delete tasks[i];
+                               tasks.erase(tasks.begin()+i);
+                               if(status==Task::ERROR)
                                        fail = true;
-                               if(actions.empty() && fail)
+                               if(tasks.empty() && fail)
                                        finish = true;
                        }
                        else
@@ -805,9 +540,9 @@ int Builder::do_build()
        if(show_progress)
                IO::print("\033[K");
        if(fail)
-               IO::print("Build failed\n");
+               logger.log("summary", "Build failed");
        else if(show_progress)
-               IO::print("Build complete\n");
+               logger.log("summary", "Build complete");
 
        return fail;
 }
@@ -817,7 +552,7 @@ int Builder::do_clean()
        // Cleaning doesn't care about ordering, so a simpler method can be used
 
        set<Target *> clean_tgts;
-       TargetList queue;
+       list<Target *> queue;
        queue.push_back(get_target("cmdline"));
 
        while(!queue.empty())
@@ -828,19 +563,16 @@ int Builder::do_clean()
                if(tgt->is_buildable() && (tgt->get_package()==main_pkg || clean>=2))
                        clean_tgts.insert(tgt);
 
-               const TargetList &deps = tgt->get_depends();
-               for(TargetList::const_iterator i=deps.begin(); i!=deps.end(); ++i)
+               const Target::Dependencies &deps = tgt->get_depends();
+               for(list<Target *>::const_iterator i=deps.begin(); i!=deps.end(); ++i)
                        if(!clean_tgts.count(*i))
                                queue.push_back(*i);
        }
 
        for(set<Target *>::iterator i=clean_tgts.begin(); i!=clean_tgts.end(); ++i)
                if(FileTarget *ft = dynamic_cast<FileTarget *>(*i))
-               {
-                       Action *action = new Unlink(*this, *ft);
-                       while(action->check()<0) ;
-                       delete action;
-               }
+                       if(ft->get_mtime())
+                               FS::unlink(ft->get_path());
 
        return 0;
 }
@@ -874,7 +606,7 @@ string Builder::helpmsg;
 
 
 Builder::Loader::Loader(Builder &b, const FS::Path &s):
-       bld(b),
+       DataFile::ObjectLoader<Builder>(b),
        src(s)
 {
        add("binary_package", &Loader::binpkg);
@@ -885,14 +617,13 @@ Builder::Loader::Loader(Builder &b, const FS::Path &s):
 
 void Builder::Loader::binpkg(const string &n)
 {
-       BinaryPackage *pkg = new BinaryPackage(bld, n);
+       BinaryPackage *pkg = new BinaryPackage(obj, n);
        load_sub(*pkg);
-       bld.packages.insert(PackageMap::value_type(n, pkg));
 }
 
 void Builder::Loader::cross_prefix(const string &a, const string &p)
 {
-       bld.cross_prefixes[a] = p;
+       obj.cross_prefixes[a] = p;
 }
 
 void Builder::Loader::profile(const string &n)
@@ -900,17 +631,16 @@ void Builder::Loader::profile(const string &n)
        StringMap prf;
        ProfileLoader ldr(prf);
        load_sub_with(ldr);
-       bld.profile_tmpl.insert(ProfileTemplateMap::value_type(n, prf));
+       obj.profile_tmpl.insert(ProfileTemplateMap::value_type(n, prf));
 }
 
 void Builder::Loader::package(const string &n)
 {
-       SourcePackage *pkg = new SourcePackage(bld, n, src);
-       if(!bld.main_pkg)
-               bld.main_pkg = pkg;
+       SourcePackage *pkg = new SourcePackage(obj, n, src);
+       if(!obj.main_pkg)
+               obj.main_pkg = pkg;
 
        load_sub(*pkg);
-       bld.packages.insert(PackageMap::value_type(n, pkg));
 }