source/objectfile.cpp

   1 #include <algorithm>
   2 #include <msp/fs/utils.h>
   3 #include "builder.h"
   4 #include "component.h"
   5 #include "objectfile.h"
   6 #include "sourcefile.h"
   7 #include "sourcepackage.h"
   8
   9 using namespace std;
  10 using namespace Msp;
  11
  12 ObjectFile::ObjectFile(Builder &b, const Component &c, SourceFile &s):
  13         FileTarget(b, c.get_package(), generate_target_path(c, s.get_path())),
  14         source(s),
  15         used_in_shlib(false)
  16 {
  17         component = &c;
  18         add_dependency(source);
  19 }
  20
  21 FS::Path ObjectFile::generate_target_path(const Component &comp, const FS::Path &src)
  22 {
  23         const SourcePackage &pkg = comp.get_package();
  24         FS::Path temp_dir = pkg.get_temp_directory()/comp.get_name();
  25         FS::Path rel_src;
  26         if(FS::descendant_depth(src, temp_dir)>=0)
  27                 rel_src = FS::relative(src, temp_dir);
  28         else
  29                 rel_src = FS::relative(src, pkg.get_source_directory());
  30         string fn;
  31         for(FS::Path::Iterator i=rel_src.begin(); i!=rel_src.end(); ++i)
  32         {
  33                 if(!fn.empty())
  34                         fn += '_';
  35                 if(*i!=".")
  36                         fn += *i;
  37         }
  38         return temp_dir/(FS::basepart(fn)+".o");
  39 }
  40
  41 void ObjectFile::set_used_in_shared_library(bool u)
  42 {
  43         used_in_shlib = u;
  44 }
  45
  46 void ObjectFile::collect_build_info(BuildInfo &binfo) const
  47 {
  48         Target::collect_build_info(binfo);
  49         binfo.update_from(component->get_build_info_for_path(source.get_path()));
  50 }
  51
  52 void ObjectFile::find_dependencies()
  53 {
  54         for(Dependencies::iterator i=depends.begin(); i!=depends.end(); ++i)
  55         {
  56                 (*i)->prepare();
  57                 find_dependencies(dynamic_cast<FileTarget *>(*i));
  58         }
  59 }
  60
  61 void ObjectFile::find_dependencies(FileTarget *tgt)
  62 {
  63         FileTarget *rtgt = dynamic_cast<FileTarget *>(tgt->get_real_target());
  64         const Dependencies &tdeps = rtgt->get_transitive_dependencies();
  65         Dependencies deps_to_add;
  66         if(rtgt==tgt)
  67         {
  68                 /* We are using the target from its original location, so dependencies
  69                 apply directly */
  70                 deps_to_add = tdeps;
  71         }
  72         else
  73         {
  74                 /* The target has been displaced by installing it.  Displace any
  75                 dependencies that come from the same package as well. */
  76                 const SourcePackage *tpkg = rtgt->get_package();
  77                 for(Dependencies::const_iterator i=tdeps.begin(); i!=tdeps.end(); ++i)
  78                 {
  79                         FileTarget *file = dynamic_cast<FileTarget *>(*i);
  80                         if(file && file->get_package()==tpkg && FS::descendant_depth(file->get_path(), tpkg->get_source_directory())>=0)
  81                         {
  82                                 FS::Path displaced = tgt->get_path()/FS::relative(file->get_path(), rtgt->get_path());
  83                                 if(Target *ddep = builder.get_vfs().get_target(displaced))
  84                                         deps_to_add.push_back(ddep);
  85                                 else
  86                                 {
  87                                         const Component *tcomp = file->get_component();
  88                                         const Component::OverlayList &overlays = tcomp->get_overlays();
  89                                         string last_dir = FS::basename(FS::dirname(displaced));
  90                                         for(Component::OverlayList::const_iterator j=overlays.begin(); j!=overlays.end(); ++j)
  91                                                 if(last_dir==*j)
  92                                                 {
  93                                                         displaced = displaced.subpath(0, displaced.size()-2)/FS::basename(file->get_path());
  94                                                         if((ddep = builder.get_vfs().get_target(displaced)))
  95                                                                 deps_to_add.push_back(ddep);
  96                                                 }
  97                                 }
  98                         }
  99                         else
 100                                 deps_to_add.push_back(*i);
 101                 }
 102         }
 103
 104         for(Dependencies::const_iterator i=deps_to_add.begin(); i!=deps_to_add.end(); ++i)
 105                 if(find(depends.begin(), depends.end(), *i)==depends.end())
 106                 {
 107                         add_dependency(**i);
 108                         if((*i)->get_real_target()->is_buildable())
 109                                 (*i)->signal_modified.connect(sigc::mem_fun(this, static_cast<void (ObjectFile::*)()>(&ObjectFile::find_dependencies)));
 110                 }
 111 }