source/filetarget.cpp

   1 #include <msp/fs/stat.h>
   2 #include <msp/fs/utils.h>
   3 #include <msp/strings/format.h>
   4 #include <msp/time/utils.h>
   5 #include "builder.h"
   6 #include "filetarget.h"
   7 #include "sourcepackage.h"
   8
   9 using namespace std;
  10 using namespace Msp;
  11
  12 FileTarget::FileTarget(Builder &b, const Package *p, const FS::Path &a):
  13         Target(b, p, make_name(p, a)),
  14         path(a),
  15         size(0)
  16 {
  17         builder.get_vfs().register_path(path, this);
  18
  19         if(FS::Stat st = FS::lstat(path))
  20         {
  21                 mtime = st.get_modify_time();
  22                 size = st.get_size();
  23         }
  24 }
  25
  26 void FileTarget::touch()
  27 {
  28         mtime = Time::now();
  29 }
  30
  31 void FileTarget::check_rebuild()
  32 {
  33         if(!buildable)
  34                 return;
  35
  36         if(builder.get_build_all())
  37                 mark_rebuild("Rebuilding everything");
  38         else if(!mtime)
  39                 mark_rebuild("Does not exist");
  40         else
  41         {
  42                 for(TargetList::iterator i=depends.begin(); (i!=depends.end() && !rebuild); ++i)
  43                 {
  44                         FileTarget *ft = dynamic_cast<FileTarget *>(*i);
  45                         if(ft && ft->get_mtime()>mtime)
  46                                 mark_rebuild((*i)->get_name()+" has changed");
  47                         else if((*i)->get_rebuild())
  48                                 mark_rebuild((*i)->get_name()+" needs rebuilding");
  49                         else
  50                         {
  51                                 Target *real = ft->get_real_target();
  52                                 if(real->get_rebuild())
  53                                         mark_rebuild(real->get_name()+" needs rebuilding");
  54                         }
  55                 }
  56         }
  57
  58         const SourcePackage *spkg = dynamic_cast<const SourcePackage *>(package);
  59         if(!rebuild && spkg && spkg->get_config().get_mtime()>mtime)
  60                 mark_rebuild("Package options changed");
  61 }
  62
  63 string FileTarget::make_name(const Package *pkg, const FS::Path &pth)
  64 {
  65         if(const SourcePackage *spkg = dynamic_cast<const SourcePackage *>(pkg))
  66         {
  67                 if(FS::descendant_depth(pth, spkg->get_source())>=0)
  68                 {
  69                         FS::Path relpath = FS::relative(pth, spkg->get_source());
  70                         return format("<%s>%s", pkg->get_name(), relpath.str().substr(1));
  71                 }
  72                 else if(FS::descendant_depth(pth, pkg->get_builder().get_prefix())>=0)
  73                 {
  74                         FS::Path relpath = FS::relative(pth, pkg->get_builder().get_prefix());
  75                         return "<prefix>"+relpath.str().substr(1);
  76                 }
  77         }
  78
  79         return pth.str();
  80 }