source/lib/objectfile.cpp

   1 #include <msp/core/algorithm.h>
   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         string fn = comp.flatten_source_path(src);
  23         const Architecture &arch = comp.get_package().get_builder().get_current_arch();
  24         return comp.get_temp_directory()/arch.create_filename<ObjectFile>(FS::basepart(fn));
  25 }
  26
  27 void ObjectFile::set_used_in_shared_library(bool u)
  28 {
  29         used_in_shlib = u;
  30 }
  31
  32 void ObjectFile::collect_build_info(BuildInfo &binfo) const
  33 {
  34         Target::collect_build_info(binfo);
  35         binfo.update_from(component->get_build_info_for_path(source.get_path()));
  36 }
  37
  38 void ObjectFile::find_dependencies()
  39 {
  40         vector<FileTarget *> headers;
  41         find_dependencies(source, headers);
  42         for(FileTarget *h: headers)
  43                 if(!any_equals(depends, static_cast<Target *>(h)))
  44                 {
  45                         add_dependency(*h);
  46                         if(h->get_real_target()->is_buildable())
  47                                 h->signal_modified.connect(sigc::mem_fun(this, static_cast<void (ObjectFile::*)()>(&ObjectFile::find_dependencies)));
  48                 }
  49 }
  50
  51 void ObjectFile::find_dependencies(FileTarget &tgt, vector<FileTarget *> &headers)
  52 {
  53         tgt.prepare();
  54
  55         FileTarget *rtgt = tgt.get_real_target();
  56         Dependencies deps_to_add = rtgt->get_transitive_dependencies();
  57         if(rtgt!=&tgt)
  58         {
  59                 FS::Path inst_dir = rtgt->get_component()->get_install_map().get_install_location(*rtgt);
  60                 /* The target has been displaced by installing it.  Displace any
  61                 dependencies that come from the same package as well. */
  62                 const SourcePackage *tpkg = rtgt->get_package();
  63                 for(Target *&d: deps_to_add)
  64                 {
  65                         FileTarget *file = dynamic_cast<FileTarget *>(d);
  66                         if(file && file->get_package()==tpkg && FS::descendant_depth(file->get_path(), tpkg->get_source_directory())>=0)
  67                         {
  68                                 const Component *tcomp = file->get_component();
  69                                 FS::Path dep_inst = tcomp->get_install_map().get_install_location(*file);
  70                                 FS::Path displaced = FS::dirname(tgt.get_path())/FS::relative(dep_inst, inst_dir)/FS::basename(file->get_path());
  71                                 d = builder.get_vfs().get_target(displaced);
  72                                 if(!d)
  73                                 {
  74                                         /* If the target was in an overlay directory and the displaced
  75                                         dependency is not found, try removing the overlay from the path. */
  76                                         string last_dir = FS::basename(FS::dirname(displaced));
  77                                         if(any_equals(tcomp->get_overlays(), last_dir))
  78                                         {
  79                                                 displaced = displaced.subpath(0, displaced.size()-2)/FS::basename(file->get_path());
  80                                                 d = builder.get_vfs().get_target(displaced);
  81                                         }
  82                                 }
  83                         }
  84                 }
  85         }
  86
  87         for(Target *d: deps_to_add)
  88                 if(FileTarget *file = dynamic_cast<FileTarget *>(d))
  89                 {
  90                         auto i = lower_bound(headers, file);
  91                         if(i==headers.end() || *i!=file)
  92                         {
  93                                 headers.insert(i, file);
  94                                 find_dependencies(*file, headers);
  95                         }
  96                 }
  97 }