source/installedfile.cpp

   1 #include <msp/fs/stat.h>
   2 #include <msp/fs/utils.h>
   3 #include "builder.h"
   4 #include "installedfile.h"
   5 #include "sharedlibrary.h"
   6
   7 using namespace std;
   8 using namespace Msp;
   9
  10 InstalledFile::InstalledFile(Builder &b, const SourcePackage &p, FileTarget &s, const string &loc):
  11         FileTarget(b, p, generate_target_path(b.get_prefix(), s, loc)),
  12         source(s)
  13 {
  14         add_dependency(source);
  15
  16         if(const SharedLibrary *shlib = dynamic_cast<const SharedLibrary *>(&source))
  17                 if(!shlib->get_soname().empty())
  18                         link = FS::dirname(path)/FS::basename(shlib->get_path());
  19
  20         if(!link.empty())
  21                 builder.get_vfs().register_path(link, this);
  22 }
  23
  24 FS::Path InstalledFile::generate_target_path(const FS::Path &prefix, const FileTarget &tgt, const string &loc)
  25 {
  26         if(!tgt.is_installable() && loc.empty())
  27                 throw invalid_argument(tgt.get_name()+" is not installable");
  28
  29         FS::Path mid;
  30         if(!loc.empty())
  31                 mid = loc;
  32         else if(const Component *comp = tgt.get_component())
  33                 mid = comp->get_install_map().get_install_location(tgt);
  34         else
  35                 mid = tgt.get_install_location();
  36
  37         string fn = FS::basename(tgt.get_path());
  38         if(const SharedLibrary *shlib = dynamic_cast<const SharedLibrary *>(&tgt))
  39                 if(!shlib->get_soname().empty())
  40                         fn = shlib->get_soname();
  41
  42         return prefix/mid/fn;
  43 }
  44
  45 Target *InstalledFile::get_real_target()
  46 {
  47         return source.get_real_target();
  48 }
  49
  50 void InstalledFile::check_rebuild()
  51 {
  52         if(!mtime)
  53                 mark_rebuild("Does not exist");
  54         else if(source.get_mtime()>mtime || source.get_size()!=size)
  55                 mark_rebuild(source.get_name()+" has changed");
  56         else if(source.needs_rebuild())
  57                 mark_rebuild(source.get_name()+" needs rebuilding");
  58         if(!needs_rebuild() && !link.empty())
  59         {
  60                 if(!FS::exists(link))
  61                         mark_rebuild("Symlink does not exist");
  62                 else
  63                 {
  64                         FS::Path rel_path = FS::relative(path, FS::dirname(link));
  65                         if(FS::readlink(link)!=rel_path)
  66                                 mark_rebuild("Symlink needs updating");
  67                 }
  68         }
  69 }
  70
  71 void InstalledFile::clean()
  72 {
  73         if(!link.empty() && mtime)
  74                 FS::unlink(link);
  75         FileTarget::clean();
  76 }