source/sourcefile.cpp

   1 #include <msp/core/maputils.h>
   2 #include <msp/fs/utils.h>
   3 #include <msp/io/print.h>
   4 #include <msp/strings/regex.h>
   5 #include "builder.h"
   6 #include "component.h"
   7 #include "sourcefile.h"
   8 #include "sourcepackage.h"
   9
  10 using namespace std;
  11 using namespace Msp;
  12
  13 SourceFile::SourceFile(Builder &b, const FS::Path &p):
  14         FileTarget(b, 0, p),
  15         comp(0)
  16 { }
  17
  18 SourceFile::SourceFile(Builder &b, const Component &c, const FS::Path &p):
  19         FileTarget(b, &c.get_package(), p),
  20         comp(&c)
  21 { }
  22
  23 void SourceFile::find_depends()
  24 {
  25         if(!comp)
  26         {
  27                 deps_ready = true;
  28                 return;
  29         }
  30
  31         const SourcePackage &spkg = comp->get_package();
  32         string relname = FS::relative(path, spkg.get_source()).str();
  33         DependencyCache &deps_cache = spkg.get_deps_cache();
  34         bool deps_found = false;
  35         if(mtime<deps_cache.get_mtime())
  36         {
  37                 try
  38                 {
  39                         includes = deps_cache.get_deps(relname);
  40                         deps_found = true;
  41                 }
  42                 catch(const key_error &)
  43                 { }
  44         }
  45
  46         if(!deps_found)
  47         {
  48                 try
  49                 {
  50                         IO::BufferedFile in(path.str());
  51
  52                         if(builder.get_verbose()>=4)
  53                                 IO::print("Reading includes from %s\n", path.str());
  54
  55                         Regex r_include("^[ \t]*#include[ \t]+([\"<].*)[\">]");
  56
  57                         string line;
  58                         while(in.getline(line))
  59                                 if(RegMatch match = r_include.match(line))
  60                                         includes.push_back(match[1].str);
  61
  62                         deps_cache.set_deps(relname, includes);
  63                 }
  64                 catch(const IO::file_not_found &)
  65                 {
  66                         if(builder.get_verbose()>=4)
  67                                 IO::print("Failed to read includes from %s\n", path.str());
  68                         deps_ready = true;
  69                         return;
  70                 }
  71         }
  72
  73         const StringList &incpath = comp->get_build_info().incpath;
  74
  75         FS::Path dir = FS::dirname(path);
  76         for(list<string>::iterator i=includes.begin(); i!=includes.end(); ++i)
  77         {
  78                 Target *hdr = builder.get_vfs().find_header(*i, dir, incpath);
  79                 if(hdr)
  80                         add_depend(hdr);
  81         }
  82
  83         deps_ready = true;
  84 }