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