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