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 "executable.h"
  16 #include "header.h"
  17 #include "install.h"
  18 #include "objectfile.h"
  19 #include "sharedlibrary.h"
  20 #include "sourcepackage.h"
  21 #include "staticlibrary.h"
  22 #include "target.h"
  23
  24 using namespace std;
  25 using namespace Msp;
  26
  27 Component::Component(SourcePackage &p, Type t, const string &n):
  28         pkg(p),
  29         type(t),
  30         name(n),
  31         install(false),
  32         module_host(0),
  33         modular(false),
  34         deflt(true)
  35 { }
  36
  37 void Component::create_build_info()
  38 {
  39         build_info.add(pkg.get_build_info());
  40
  41         for(PackageList::iterator i=requires.begin(); i!=requires.end(); ++i)
  42                 build_info.add((*i)->get_exported_binfo());
  43
  44         for(StringList::iterator i=build_info.incpath.begin(); i!=build_info.incpath.end(); ++i)
  45                 *i=(pkg.get_source() / *i).str();
  46         for(StringList::iterator i=build_info.libpath.begin(); i!=build_info.libpath.end(); ++i)
  47                 *i=(pkg.get_source() / *i).str();
  48
  49         if(pkg.get_library_mode()!=DYNAMIC)
  50         {
  51                 // XXX This may pull in some unnecessary libpaths too.  More thought required.
  52                 PackageList reqs=pkg.collect_requires();
  53                 for(PackageList::iterator i=reqs.begin(); i!=reqs.end(); ++i)
  54                 {
  55                         const BuildInfo &ebi=(*i)->get_exported_binfo();
  56                         build_info.libpath.insert(build_info.libpath.end(), ebi.libpath.begin(), ebi.libpath.end());
  57                 }
  58         }
  59
  60         if(type==PROGRAM)
  61         {
  62                 string strip=pkg.get_config().get_option("strip").value;
  63                 if(lexical_cast<bool>(strip))
  64                         build_info.ldflags.push_back("-s");
  65         }
  66
  67         if(modular)
  68         {
  69                 build_info.ldflags.push_back("-rdynamic");
  70                 build_info.libs.push_back("dl");
  71         }
  72         else if(module_host)
  73         {
  74                 const PathList &host_src=module_host->get_sources();
  75                 for(PathList::const_iterator i=host_src.begin(); i!=host_src.end(); ++i)
  76                         build_info.incpath.push_back(i->str());
  77         }
  78
  79         build_info.unique();
  80 }
  81
  82 void Component::create_targets() const
  83 {
  84         Builder &builder=pkg.get_builder();
  85         Target *world=builder.get_target("world");
  86         Target *def_tgt=builder.get_target("default");
  87
  88         PathList files=collect_source_files();
  89
  90         bool build_exe=(type!=HEADERS);
  91
  92         list<ObjectFile *> objs;
  93         list<FileTarget *> inst_tgts;
  94         for(PathList::const_iterator i=files.begin(); i!=files.end(); ++i)
  95         {
  96                 string ext=FS::extpart(FS::basename(*i));
  97                 if((ext==".cpp" || ext==".c") && build_exe)
  98                 {
  99                         SourceFile *src=new SourceFile(builder, this, i->str());
 100
 101                         // Compile sources
 102                         ObjectFile *obj=new ObjectFile(builder, *this, *src);
 103                         objs.push_back(obj);
 104                 }
 105                 else if(ext==".h")
 106                 {
 107                         FileTarget *hdr=dynamic_cast<FileTarget *>(builder.get_target(i->str()));
 108                         if(!hdr)
 109                                 hdr=new Header(builder, this, i->str());
 110
 111                         // Install headers if requested
 112                         if(!install_headers.empty())
 113                                 inst_tgts.push_back(hdr);
 114                 }
 115         }
 116
 117         if(build_exe)
 118         {
 119                 Binary *bin=0;
 120                 StaticLibrary *slib=0;
 121                 if(type==LIBRARY)
 122                 {
 123                         bin=new SharedLibrary(builder, *this, objs);
 124                         slib=new StaticLibrary(builder, *this, objs);
 125                 }
 126                 else
 127                         bin=new Executable(builder, *this, objs);
 128
 129                 if(&pkg==builder.get_main_package() && deflt)
 130                 {
 131                         def_tgt->add_depend(bin);
 132                         if(slib) def_tgt->add_depend(slib);
 133                 }
 134                 else
 135                 {
 136                         world->add_depend(bin);
 137                         if(slib) world->add_depend(slib);
 138                 }
 139
 140                 if(install)
 141                 {
 142                         inst_tgts.push_back(bin);
 143                         if(slib)
 144                                 inst_tgts.push_back(slib);
 145                 }
 146         }
 147
 148         Target *inst_tgt=builder.get_target("install");
 149         for(list<FileTarget *>::const_iterator i=inst_tgts.begin(); i!=inst_tgts.end(); ++i)
 150                 inst_tgt->add_depend(new Install(builder, pkg, **i));
 151 }
 152
 153 PathList Component::collect_source_files() const
 154 {
 155         PathList files;
 156         for(PathList::const_iterator i=sources.begin(); i!=sources.end(); ++i)
 157         {
 158                 if(FS::is_dir(*i))
 159                 {
 160                         list<string> sfiles=list_files(*i);
 161                         for(list<string>::iterator j=sfiles.begin(); j!=sfiles.end(); ++j)
 162                                 files.push_back(*i / *j);
 163                 }
 164                 else
 165                         files.push_back(*i);
 166         }
 167
 168         return files;
 169 }
 170
 171
 172 Component::Loader::Loader(Component &c):
 173         comp(c)
 174 {
 175         add("source",          &Loader::source);
 176         add("install",         &Component::install);
 177         add("install_headers", &Component::install_headers);
 178         add("build_info",      &Loader::build_info);
 179         add("require",         &Loader::require);
 180         add("modular",         &Loader::modular);
 181         add("host",            &Loader::host);
 182         add("default",         &Component::deflt);
 183 }
 184
 185 void Component::Loader::source(const string &s)
 186 {
 187         comp.sources.push_back(comp.pkg.get_source()/s);
 188 }
 189
 190 void Component::Loader::require(const string &n)
 191 {
 192         Package *req=comp.pkg.get_builder().get_package(n);
 193         if(req)
 194                 comp.requires.push_back(req);
 195 }
 196
 197 void Component::Loader::modular()
 198 {
 199         if(comp.type!=PROGRAM)
 200                 throw Msp::Exception("Only programs can be modular");
 201         comp.modular=true;
 202 }
 203
 204 void Component::Loader::host(const string &n)
 205 {
 206         const ComponentList &comps=comp.pkg.get_components();
 207         for(ComponentList::const_iterator i=comps.begin(); i!=comps.end(); ++i)
 208                 if(i->get_name()==n)
 209                 {
 210                         if(i->get_type()!=PROGRAM || !i->get_modular())
 211                                 throw Msp::Exception("Module host must be a modular program");
 212                         comp.module_host=&*i;
 213                         return;
 214                 }
 215
 216         throw Msp::Exception("Unknown component");
 217 }
 218
 219 void Component::Loader::build_info()
 220 {
 221         load_sub(comp.build_info);
 222 }