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 <iostream>
  10 #include <msp/strings/regex.h>
  11 #include "builder.h"
  12 #include "component.h"
  13 #include "sourcefile.h"
  14 #include "sourcepackage.h"
  15
  16 using namespace std;
  17 using namespace Msp;
  18
  19 SourceFile::SourceFile(Builder &b, const Component *c, const string &n):
  20         Target(b, c?&c->get_package():0, n),
  21         comp(c)
  22 { }
  23
  24 /**
  25 Parses include directives from the file and looks up the appropriate targets
  26 from Builder.
  27 */
  28 void SourceFile::find_depends()
  29 {
  30         if(!comp)
  31                 return;
  32
  33         DependencyCache &deps_cache=comp->get_package().get_deps_cache();
  34         if(mtime>deps_cache.get_mtime())
  35         {
  36                 ifstream in(name.c_str());
  37                 if(!in) return;
  38
  39                 if(builder.get_verbose()>=4)
  40                         cout<<"Reading includes from "<<name<<'\n';
  41
  42                 Regex r_include("^[ \t]*#include[ \t]+([\"<].*)[\">]");
  43
  44                 string line;
  45                 while(getline(in, line))
  46                         if(RegMatch match=r_include.match(line))
  47                                 includes.push_back(match[1].str);
  48
  49                 deps_cache.set_deps(name, includes);
  50         }
  51         else
  52                 includes=deps_cache.get_deps(name);
  53
  54         const StringList &incpath=comp->get_build_info().incpath;
  55         const string &arch=comp->get_package().get_arch();
  56
  57         string path=name.substr(0, name.rfind('/'));
  58         for(list<string>::iterator i=includes.begin(); i!=includes.end(); ++i)
  59         {
  60                 Target *hdr=builder.get_header(*i, arch, path, incpath);
  61                 if(hdr)
  62                         add_depend(hdr);
  63         }
  64
  65         deps_ready=true;
  66 }