source/component.cpp

   1 /* $Id$
   2
   3 This file is part of builder
   4 Copyright © 2006-2009  Mikko Rasa, Mikkosoft Productions
   5 Distributed under the LGPL
   6 */
   7
   8 #include <msp/core/except.h>
   9 #include <msp/fs/dir.h>
  10 #include <msp/fs/stat.h>
  11 #include <msp/fs/utils.h>
  12 #include <msp/strings/lexicalcast.h>
  13 #include "builder.h"
  14 #include "component.h"
  15 #include "header.h"
  16 #include "install.h"
  17 #include "objectfile.h"
  18 #include "sharedlibrary.h"
  19 #include "sourcepackage.h"
  20 #include "staticlibrary.h"
  21 #include "target.h"
  22
  23 using namespace std;
  24 using namespace Msp;
  25
  26 Component::Component(SourcePackage &p, Type t, const string &n):
  27         pkg(p),
  28         type(t),
  29         name(n),
  30         install(false),
  31         module_host(0),
  32         modular(false),
  33         deflt(true)
  34 { }
  35
  36 void Component::create_build_info()
  37 {
  38         build_info.add(pkg.get_build_info());
  39
  40         for(PackageList::iterator i=requires.begin(); i!=requires.end(); ++i)
  41                 build_info.add((*i)->get_exported_binfo());
  42
  43         for(StringList::iterator i=build_info.incpath.begin(); i!=build_info.incpath.end(); ++i)
  44                 *i=(pkg.get_source() / *i).str();
  45         for(StringList::iterator i=build_info.libpath.begin(); i!=build_info.libpath.end(); ++i)
  46                 *i=(pkg.get_source() / *i).str();
  47
  48         if(pkg.get_library_mode()!=DYNAMIC)
  49         {
  50                 // XXX This may pull in some unnecessary libpaths too.  More thought required.
  51                 PackageList reqs=pkg.collect_requires();
  52                 for(PackageList::iterator i=reqs.begin(); i!=reqs.end(); ++i)
  53                 {
  54                         const BuildInfo &ebi=(*i)->get_exported_binfo();
  55                         build_info.libpath.insert(build_info.libpath.end(), ebi.libpath.begin(), ebi.libpath.end());
  56                 }
  57         }
  58
  59         if(type==PROGRAM)
  60         {
  61                 string strip=pkg.get_config().get_option("strip").value;
  62                 if(lexical_cast<bool>(strip))
  63                         build_info.ldflags.push_back("-s");
  64         }
  65
  66         if(modular)
  67         {
  68                 build_info.ldflags.push_back("-rdynamic");
  69                 build_info.libs.push_back("dl");
  70         }
  71         else if(module_host)
  72         {
  73                 const PathList &host_src=module_host->get_sources();
  74                 for(PathList::const_iterator i=host_src.begin(); i!=host_src.end(); ++i)
  75                         build_info.incpath.push_back(i->str());
  76         }
  77
  78         build_info.unique();
  79 }
  80
  81 void Component::create_targets() const
  82 {
  83         Builder &builder=pkg.get_builder();
  84         Target *world=builder.get_target("world");
  85         Target *def_tgt=builder.get_target("default");
  86
  87         PathList files=collect_source_files();
  88
  89         bool build_exe=(type!=HEADERS);
  90
  91         list<ObjectFile *> objs;
  92         list<Target *> inst_tgts;
  93         for(PathList::const_iterator i=files.begin(); i!=files.end(); ++i)
  94         {
  95                 string ext=FS::extpart(FS::basename(*i));
  96                 if((ext==".cpp" || ext==".c") && build_exe)
  97                 {
  98                         SourceFile *src=new SourceFile(builder, this, i->str());
  99
 100                         // Compile sources
 101                         ObjectFile *obj=new ObjectFile(builder, *this, *src);
 102                         objs.push_back(obj);
 103                 }
 104                 else if(ext==".h")
 105                 {
 106                         Target *hdr=builder.get_target(i->str());
 107                         if(!hdr)
 108                                 hdr=new Header(builder, this, i->str());
 109
 110                         // Install headers if requested
 111                         if(!install_headers.empty())
 112                                 inst_tgts.push_back(hdr);
 113                 }
 114         }
 115
 116         if(build_exe)
 117         {
 118                 Executable *exe=0;
 119                 StaticLibrary *slib=0;
 120                 if(type==LIBRARY)
 121                 {
 122                         exe=new SharedLibrary(builder, *this, objs);
 123                         slib=new StaticLibrary(builder, *this, objs);
 124                 }
 125                 else
 126                         exe=new Executable(builder, *this, objs);
 127
 128                 if(&pkg==builder.get_main_package() && deflt)
 129                 {
 130                         def_tgt->add_depend(exe);
 131                         if(slib) def_tgt->add_depend(slib);
 132                 }
 133                 else
 134                 {
 135                         world->add_depend(exe);
 136                         if(slib) world->add_depend(slib);
 137                 }
 138
 139                 if(install)
 140                 {
 141                         inst_tgts.push_back(exe);
 142                         if(slib)
 143                                 inst_tgts.push_back(slib);
 144                 }
 145         }
 146
 147         Target *inst_tgt=builder.get_target("install");
 148         for(TargetList::const_iterator i=inst_tgts.begin(); i!=inst_tgts.end(); ++i)
 149                 inst_tgt->add_depend(new Install(builder, pkg, **i));
 150 }
 151
 152 PathList Component::collect_source_files() const
 153 {
 154         PathList files;
 155         for(PathList::const_iterator i=sources.begin(); i!=sources.end(); ++i)
 156         {
 157                 if(FS::is_dir(*i))
 158                 {
 159                         list<string> sfiles=list_files(*i);
 160                         for(list<string>::iterator j=sfiles.begin(); j!=sfiles.end(); ++j)
 161                                 files.push_back(*i / *j);
 162                 }
 163                 else
 164                         files.push_back(*i);
 165         }
 166
 167         return files;
 168 }
 169
 170
 171 Component::Loader::Loader(Component &c):
 172         comp(c)
 173 {
 174         add("source",          &Loader::source);
 175         add("install",         &Component::install);
 176         add("install_headers", &Component::install_headers);
 177         add("build_info",      &Loader::build_info);
 178         add("require",         &Loader::require);
 179         add("modular",         &Loader::modular);
 180         add("host",            &Loader::host);
 181         add("default",         &Component::deflt);
 182 }
 183
 184 void Component::Loader::source(const string &s)
 185 {
 186         comp.sources.push_back(comp.pkg.get_source()/s);
 187 }
 188
 189 void Component::Loader::require(const string &n)
 190 {
 191         Package *req=comp.pkg.get_builder().get_package(n);
 192         if(req)
 193                 comp.requires.push_back(req);
 194 }
 195
 196 void Component::Loader::modular()
 197 {
 198         if(comp.type!=PROGRAM)
 199                 throw Msp::Exception("Only programs can be modular");
 200         comp.modular=true;
 201 }
 202
 203 void Component::Loader::host(const string &n)
 204 {
 205         const ComponentList &comps=comp.pkg.get_components();
 206         for(ComponentList::const_iterator i=comps.begin(); i!=comps.end(); ++i)
 207                 if(i->get_name()==n)
 208                 {
 209                         if(i->get_type()!=PROGRAM || !i->get_modular())
 210                                 throw Msp::Exception("Module host must be a modular program");
 211                         comp.module_host=&*i;
 212                         return;
 213                 }
 214
 215         throw Msp::Exception("Unknown component");
 216 }
 217
 218 void Component::Loader::build_info()
 219 {
 220         load_sub(comp.build_info);
 221 }