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