source/filetarget.cpp

   1 /* $Id$
   2
   3 This file is part of builder
   4 Copyright © 2009-2010  Mikko Rasa, Mikkosoft Productions
   5 Distributed under the LGPL
   6 */
   7
   8 #include <msp/fs/stat.h>
   9 #include <msp/fs/utils.h>
  10 #include <msp/time/utils.h>
  11 #include "builder.h"
  12 #include "filetarget.h"
  13 #include "sourcepackage.h"
  14
  15 using namespace std;
  16 using namespace Msp;
  17
  18 FileTarget::FileTarget(Builder &b, const Package *p, const FS::Path &a):
  19         Target(b, p, FS::basename(a.str())),
  20         path(a),
  21         size(0)
  22 {
  23         builder.add_target(this);
  24
  25         struct stat st;
  26         if(!FS::lstat(path, st))
  27         {
  28                 mtime = Time::TimeStamp::from_unixtime(st.st_mtime);
  29                 size = st.st_size;
  30         }
  31 }
  32
  33 void FileTarget::touch()
  34 {
  35         mtime = Time::now();
  36 }
  37
  38 void FileTarget::check_rebuild()
  39 {
  40         if(!buildable)
  41                 return;
  42
  43         if(builder.get_build_all())
  44                 mark_rebuild("Rebuilding everything");
  45         else if(!mtime)
  46                 mark_rebuild("Does not exist");
  47         else
  48         {
  49                 for(TargetList::iterator i=depends.begin(); (i!=depends.end() && !rebuild); ++i)
  50                 {
  51                         FileTarget *ft = dynamic_cast<FileTarget *>(*i);
  52                         if(ft && ft->get_mtime()>mtime)
  53                                 mark_rebuild((*i)->get_name()+" has changed");
  54                         else if((*i)->get_rebuild())
  55                                 mark_rebuild((*i)->get_name()+" needs rebuilding");
  56                         else
  57                         {
  58                                 Target *real = ft->get_real_target();
  59                                 if(real->get_rebuild())
  60                                         mark_rebuild(real->get_name()+" needs rebuilding");
  61                         }
  62                 }
  63         }
  64
  65         const SourcePackage *spkg = dynamic_cast<const SourcePackage *>(package);
  66         if(!rebuild && spkg && spkg->get_config().get_mtime()>mtime)
  67                 mark_rebuild("Package options changed");
  68 }