source/sourcefile.cpp

   1 /* $Id$
   2
   3 This file is part of builder
   4 Copyright © 2006-2007 Mikko Rasa, Mikkosoft Productions
   5 Distributed under the LGPL
   6 */
   7
   8 #include <fstream>
   9 #include <msp/strings/regex.h>
  10 #include "builder.h"
  11 #include "component.h"
  12 #include "sourcefile.h"
  13 #include "sourcepackage.h"
  14
  15 using namespace std;
  16 using namespace Msp;
  17
  18 SourceFile::SourceFile(Builder &b, const Component *c, const string &n):
  19         Target(b, c?&c->get_package():0, n),
  20         comp(c)
  21 { }
  22
  23 /**
  24 Parses include directives from the file and looks up the appropriate targets
  25 from Builder.
  26 */
  27 void SourceFile::find_depends()
  28 {
  29         if(!comp)
  30                 return;
  31
  32         DependencyCache &deps_cache=comp->get_package().get_deps_cache();
  33         if(mtime>deps_cache.get_mtime())
  34         {
  35                 ifstream in(name.c_str());
  36                 if(!in) return;
  37
  38                 Regex r_include("^[ \t]*#include[ \t]+([\"<].*)[\">]");
  39
  40                 string line;
  41                 while(getline(in, line))
  42                         if(RegMatch match=r_include.match(line))
  43                                 includes.push_back(match[1].str);
  44
  45                 deps_cache.set_deps(name, includes);
  46         }
  47         else
  48                 includes=deps_cache.get_deps(name);
  49
  50         const StringList &incpath=comp->get_build_info().incpath;
  51         const string &arch=comp->get_package().get_arch();
  52
  53         string path=name.substr(0, name.rfind('/'));
  54         for(list<string>::iterator i=includes.begin(); i!=includes.end(); ++i)
  55         {
  56                 Target *hdr=builder.get_header(*i, arch, path, incpath);
  57                 if(hdr)
  58                         add_depend(hdr);
  59         }
  60
  61         deps_ready=true;
  62 }