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/io/print.h>
  13 #include <msp/strings/lexicalcast.h>
  14 #include "builder.h"
  15 #include "component.h"
  16 #include "executable.h"
  17 #include "file.h"
  18 #include "header.h"
  19 #include "install.h"
  20 #include "objectfile.h"
  21 #include "sharedlibrary.h"
  22 #include "sourcepackage.h"
  23 #include "staticlibrary.h"
  24 #include "tarball.h"
  25 #include "target.h"
  26
  27 using namespace std;
  28 using namespace Msp;
  29
  30 Component::Component(SourcePackage &p, Type t, const string &n):
  31         pkg(p),
  32         type(t),
  33         name(n),
  34         install(false),
  35         module_host(0),
  36         modular(false),
  37         deflt(true)
  38 { }
  39
  40 void Component::create_build_info()
  41 {
  42         build_info.add(pkg.get_build_info());
  43
  44         for(PackageList::iterator i=requires.begin(); i!=requires.end(); ++i)
  45                 build_info.add((*i)->get_exported_binfo());
  46
  47         for(StringList::iterator i=build_info.incpath.begin(); i!=build_info.incpath.end(); ++i)
  48                 *i=(pkg.get_source() / *i).str();
  49         for(StringList::iterator i=build_info.libpath.begin(); i!=build_info.libpath.end(); ++i)
  50                 *i=(pkg.get_source() / *i).str();
  51
  52         if(pkg.get_library_mode()!=DYNAMIC)
  53         {
  54                 // XXX This may pull in some unnecessary libpaths too.  More thought required.
  55                 PackageList reqs=pkg.collect_requires();
  56                 for(PackageList::iterator i=reqs.begin(); i!=reqs.end(); ++i)
  57                 {
  58                         const BuildInfo &ebi=(*i)->get_exported_binfo();
  59                         build_info.libpath.insert(build_info.libpath.end(), ebi.libpath.begin(), ebi.libpath.end());
  60                 }
  61         }
  62
  63         if(type==PROGRAM)
  64         {
  65                 string strip=pkg.get_config().get_option("strip").value;
  66                 if(lexical_cast<bool>(strip))
  67                         build_info.ldflags.push_back("-s");
  68         }
  69
  70         if(modular)
  71         {
  72                 build_info.ldflags.push_back("-rdynamic");
  73                 build_info.libs.push_back("dl");
  74         }
  75         else if(module_host)
  76         {
  77                 const PathList &host_src=module_host->get_sources();
  78                 for(PathList::const_iterator i=host_src.begin(); i!=host_src.end(); ++i)
  79                         build_info.incpath.push_back(i->str());
  80         }
  81
  82         build_info.unique();
  83 }
  84
  85 void Component::create_targets() const
  86 {
  87         Builder &builder=pkg.get_builder();
  88         Target *world=builder.get_target("world");
  89         Target *def_tgt=builder.get_target("default");
  90
  91         PathList files=collect_source_files();
  92
  93         if(type==TARBALL)
  94         {
  95                 string tarname=name;
  96                 if(name=="@src")
  97                         tarname=pkg.get_name()+"-"+pkg.get_version();
  98                 TarBall *result=new TarBall(builder, pkg, tarname);
  99
 100                 if(name=="@src")
 101                 {
 102                         const TargetMap &targets=builder.get_targets();
 103                         for(TargetMap::const_iterator i=targets.begin(); i!=targets.end(); ++i)
 104                                 if(i->second->get_package()==&pkg && !i->second->get_buildable())
 105                                         result->add_depend(i->second);
 106                         files.push_back(pkg.get_source()/"Build");
 107                 }
 108
 109                 for(PathList::const_iterator i=files.begin(); i!=files.end(); ++i)
 110                 {
 111                         FileTarget *ft;
 112                         if(Target *tgt=builder.get_target(i->str()))
 113                                 ft=dynamic_cast<FileTarget *>(tgt);
 114                         else
 115                                 ft=new File(builder, *i);
 116                         result->add_depend(ft);
 117                 }
 118
 119                 Target *tarbls_tgt=builder.get_target("tarballs");
 120                 tarbls_tgt->add_depend(result);
 121
 122                 return;
 123         }
 124
 125         list<FileTarget *> inst_list;
 126         for(PathList::const_iterator i=files.begin(); i!=files.end(); ++i)
 127         {
 128                 string ext=FS::extpart(FS::basename(*i));
 129                 if(ext==".h")
 130                 {
 131                         FileTarget *hdr=dynamic_cast<FileTarget *>(builder.get_target(i->str()));
 132                         if(!hdr)
 133                                 hdr=new Header(builder, this, i->str());
 134
 135                         // Install headers if requested
 136                         if(type==HEADERS && install)
 137                                 inst_list.push_back(hdr);
 138                 }
 139         }
 140
 141         if(type==PROGRAM || type==LIBRARY || type==MODULE)
 142         {
 143                 list<ObjectFile *> objs;
 144                 for(PathList::const_iterator i=files.begin(); i!=files.end(); ++i)
 145                 {
 146                         string ext=FS::extpart(FS::basename(*i));
 147                         if((ext==".cpp" || ext==".cc" || ext==".c"))
 148                         {
 149                                 SourceFile *src=new SourceFile(builder, this, i->str());
 150                                 ObjectFile *obj=new ObjectFile(builder, *this, *src);
 151                                 objs.push_back(obj);
 152                         }
 153                 }
 154
 155                 list<FileTarget *> results;
 156                 if(type==LIBRARY)
 157                 {
 158                         results.push_back(new SharedLibrary(builder, *this, objs));
 159                         results.push_back(new StaticLibrary(builder, *this, objs));
 160                 }
 161                 else
 162                         results.push_back(new Executable(builder, *this, objs));
 163
 164                 for(list<FileTarget *>::const_iterator i=results.begin(); i!=results.end(); ++i)
 165                 {
 166                         if(&pkg==builder.get_main_package() && deflt)
 167                                 def_tgt->add_depend(*i);
 168                         else
 169                                 world->add_depend(*i);
 170                         if(install)
 171                                 inst_list.push_back(*i);
 172                 }
 173         }
 174
 175         Target *inst_tgt=builder.get_target("install");
 176         for(list<FileTarget *>::const_iterator i=inst_list.begin(); i!=inst_list.end(); ++i)
 177                 inst_tgt->add_depend(new Install(builder, pkg, **i));
 178 }
 179
 180 PathList Component::collect_source_files() const
 181 {
 182         PathList files;
 183         for(PathList::const_iterator i=sources.begin(); i!=sources.end(); ++i)
 184         {
 185                 if(FS::is_dir(*i))
 186                 {
 187                         list<string> sfiles=list_files(*i);
 188                         for(list<string>::iterator j=sfiles.begin(); j!=sfiles.end(); ++j)
 189                                 files.push_back(*i / *j);
 190                 }
 191                 else
 192                         files.push_back(*i);
 193         }
 194
 195         return files;
 196 }
 197
 198
 199 Component::Loader::Loader(Component &c):
 200         comp(c)
 201 {
 202         add("source",          &Loader::source);
 203         add("install",         &Component::install);
 204         add("install_headers", &Loader::install_headers);
 205         add("build_info",      &Loader::build_info);
 206         add("require",         &Loader::require);
 207         add("modular",         &Loader::modular);
 208         add("host",            &Loader::host);
 209         add("default",         &Component::deflt);
 210 }
 211
 212 void Component::Loader::finish()
 213 {
 214         if(!inst_hdr.empty())
 215         {
 216                 Component hdrcomp(comp.pkg, HEADERS, inst_hdr);
 217                 hdrcomp.sources=comp.sources;
 218                 hdrcomp.install=true;
 219                 const_cast<ComponentList &>(comp.pkg.get_components()).push_back(hdrcomp);
 220         }
 221 }
 222
 223 void Component::Loader::source(const string &s)
 224 {
 225         comp.sources.push_back(comp.pkg.get_source()/s);
 226 }
 227
 228 void Component::Loader::require(const string &n)
 229 {
 230         Package *req=comp.pkg.get_builder().get_package(n);
 231         if(req)
 232                 comp.requires.push_back(req);
 233 }
 234
 235 void Component::Loader::modular()
 236 {
 237         if(comp.type!=PROGRAM)
 238                 throw Msp::Exception("Only programs can be modular");
 239         comp.modular=true;
 240 }
 241
 242 void Component::Loader::host(const string &n)
 243 {
 244         const ComponentList &comps=comp.pkg.get_components();
 245         for(ComponentList::const_iterator i=comps.begin(); i!=comps.end(); ++i)
 246                 if(i->get_name()==n)
 247                 {
 248                         if(i->get_type()!=PROGRAM || !i->get_modular())
 249                                 throw Msp::Exception("Module host must be a modular program");
 250                         comp.module_host=&*i;
 251                         return;
 252                 }
 253
 254         throw Msp::Exception("Unknown component");
 255 }
 256
 257 void Component::Loader::install_headers(const string &p)
 258 {
 259         IO::print("%s: Note: install_headers is deprecated\n", get_source());
 260         if(comp.type==HEADERS)
 261         {
 262                 comp.name=p;
 263                 comp.install=true;
 264         }
 265         else
 266                 inst_hdr=p;
 267 }
 268
 269 void Component::Loader::build_info()
 270 {
 271         load_sub(comp.build_info);
 272 }