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, generate_name(p, a)),
  14         path(a),
  15         size(0)
  16 {
  17         package = p;
  18
  19         builder.get_vfs().register_path(path, this);
  20
  21         if(FS::Stat st = FS::lstat(path))
  22         {
  23                 mtime = st.get_modify_time();
  24                 size = st.get_size();
  25         }
  26 }
  27
  28 void FileTarget::touch()
  29 {
  30         mtime = Time::now();
  31 }
  32
  33 void FileTarget::check_rebuild()
  34 {
  35         if(!tool)
  36                 return;
  37
  38         if(builder.get_build_all())
  39                 mark_rebuild("Rebuilding everything");
  40         else if(!mtime)
  41                 mark_rebuild("Does not exist");
  42         else
  43         {
  44                 for(Dependencies::iterator i=depends.begin(); (i!=depends.end() && !needs_rebuild()); ++i)
  45                 {
  46                         FileTarget *ft = dynamic_cast<FileTarget *>(*i);
  47                         if(ft && ft->get_mtime()>mtime)
  48                                 mark_rebuild((*i)->get_name()+" has changed");
  49                         else if((*i)->needs_rebuild())
  50                                 mark_rebuild((*i)->get_name()+" needs rebuilding");
  51                         else
  52                         {
  53                                 Target *real = ft->get_real_target();
  54                                 if(real->needs_rebuild())
  55                                         mark_rebuild(real->get_name()+" needs rebuilding");
  56                         }
  57                 }
  58         }
  59
  60         const SourcePackage *spkg = dynamic_cast<const SourcePackage *>(package);
  61         if(!needs_rebuild() && spkg && spkg->get_config().get_mtime()>mtime)
  62                 mark_rebuild("Package options changed");
  63 }
  64
  65 string FileTarget::generate_name(const Package *pkg, const FS::Path &pth)
  66 {
  67         if(const SourcePackage *spkg = dynamic_cast<const SourcePackage *>(pkg))
  68         {
  69                 if(FS::descendant_depth(pth, spkg->get_source())>=0)
  70                 {
  71                         FS::Path relpath = FS::relative(pth, spkg->get_source());
  72                         return format("<%s>%s", pkg->get_name(), relpath.str().substr(1));
  73                 }
  74                 else if(FS::descendant_depth(pth, pkg->get_builder().get_prefix())>=0)
  75                 {
  76                         FS::Path relpath = FS::relative(pth, pkg->get_builder().get_prefix());
  77                         return "<prefix>"+relpath.str().substr(1);
  78                 }
  79         }
  80
  81         return pth.str();
  82 }