source/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         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();
  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(const string &c: rel_src)
  32         {
  33                 if(!fn.empty())
  34                         fn += '_';
  35                 if(c!=".")
  36                         fn += c;
  37         }
  38         const Architecture &arch = comp.get_package().get_builder().get_current_arch();
  39         return temp_dir/comp.get_name()/arch.create_filename<ObjectFile>(FS::basepart(fn));
  40 }
  41
  42 void ObjectFile::set_used_in_shared_library(bool u)
  43 {
  44         used_in_shlib = u;
  45 }
  46
  47 void ObjectFile::collect_build_info(BuildInfo &binfo) const
  48 {
  49         Target::collect_build_info(binfo);
  50         binfo.update_from(component->get_build_info_for_path(source.get_path()));
  51 }
  52
  53 void ObjectFile::find_dependencies()
  54 {
  55         vector<FileTarget *> headers;
  56         find_dependencies(source, headers);
  57         for(FileTarget *h: headers)
  58         {
  59                 add_dependency(*h);
  60                 if(h->get_real_target()->is_buildable())
  61                         h->signal_modified.connect(sigc::mem_fun(this, static_cast<void (ObjectFile::*)()>(&ObjectFile::find_dependencies)));
  62         }
  63 }
  64
  65 void ObjectFile::find_dependencies(FileTarget &tgt, vector<FileTarget *> &headers)
  66 {
  67         tgt.prepare();
  68
  69         FileTarget *rtgt = dynamic_cast<FileTarget *>(tgt.get_real_target());
  70         Dependencies deps_to_add = rtgt->get_transitive_dependencies();
  71         if(rtgt!=&tgt)
  72         {
  73                 FS::Path inst_dir = rtgt->get_component()->get_install_map().get_install_location(*rtgt);
  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(Target *&d: deps_to_add)
  78                 {
  79                         FileTarget *file = dynamic_cast<FileTarget *>(d);
  80                         if(file && file->get_package()==tpkg && FS::descendant_depth(file->get_path(), tpkg->get_source_directory())>=0)
  81                         {
  82                                 const Component *tcomp = file->get_component();
  83                                 FS::Path dep_inst = tcomp->get_install_map().get_install_location(*file);
  84                                 FS::Path displaced = FS::dirname(tgt.get_path())/FS::relative(dep_inst, inst_dir)/FS::basename(file->get_path());
  85                                 d = builder.get_vfs().get_target(displaced);
  86                                 if(!d)
  87                                 {
  88                                         /* If the target was in an overlay directory and the displaced
  89                                         dependency is not found, try removing the overlay from the path. */
  90                                         string last_dir = FS::basename(FS::dirname(displaced));
  91                                         if(any_equals(tcomp->get_overlays(), last_dir))
  92                                         {
  93                                                 displaced = displaced.subpath(0, displaced.size()-2)/FS::basename(file->get_path());
  94                                                 d = builder.get_vfs().get_target(displaced);
  95                                         }
  96                                 }
  97                         }
  98                 }
  99         }
 100
 101         for(Target *d: deps_to_add)
 102                 if(FileTarget *file = dynamic_cast<FileTarget *>(d))
 103                 {
 104                         auto i = lower_bound(headers, file);
 105                         if(i==headers.end() || *i!=file)
 106                         {
 107                                 headers.insert(i, file);
 108                                 find_dependencies(*file, headers);
 109                         }
 110                 }
 111 }