source/csourcefile.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 "csourcefile.h"
   8 #include "sourcepackage.h"
   9 #include "tool.h"
  10
  11 using namespace std;
  12 using namespace Msp;
  13
  14 CSourceFile::CSourceFile(Builder &b, const Component &c, const FS::Path &p):
  15         SourceFile(b, c, p)
  16 {
  17         string ext = FS::extpart(FS::basename(path));
  18         if(ext==".h" || ext==".H" || ext==".hpp")
  19                 install_location = FS::Path("include")/package->get_name();
  20 }
  21
  22 void CSourceFile::parse_includes(IO::Base &in)
  23 {
  24         static Regex r_include("^[ \t]*#include[ \t]+([\"<].*)[\">]");
  25
  26         string line;
  27         while(in.getline(line))
  28                 if(RegMatch match = r_include.match(line))
  29                         includes.push_back(match[1].str);
  30 }
  31
  32 void CSourceFile::find_dependencies()
  33 {
  34         if(!component || !mtime)
  35                 return;
  36
  37         const SourcePackage &spkg = component->get_package();
  38
  39         Cache &cache = spkg.get_cache();
  40         if(mtime<cache.get_mtime() && cache.has_key(this, "includes"))
  41                 includes = cache.get_values(this, "includes");
  42         else
  43         {
  44                 IO::BufferedFile in(path.str());
  45
  46                 builder.get_logger().log("files", "Reading includes from %s", path.str());
  47
  48                 parse_includes(in);
  49                 cache.set_values(this, "includes", includes);
  50         }
  51
  52         const BuildInfo &build_info = component->get_build_info_for_path(path);
  53         const auto &incpath = build_info.incpath;
  54         VirtualFileSystem::SearchPath local_incpath;
  55         local_incpath.reserve(1+build_info.local_incpath.size()+incpath.size());
  56         local_incpath.push_back(FS::dirname(path).str());
  57         local_incpath.insert(local_incpath.end(), build_info.local_incpath.begin(), build_info.local_incpath.end());
  58         local_incpath.insert(local_incpath.end(), incpath.begin(), incpath.end());
  59
  60         Tool *compiler = builder.get_toolchain().get_tool_for_suffix(FS::extpart(FS::basename(path)), true);
  61         if(compiler)
  62                 compiler->prepare();
  63         for(const string &i: includes)
  64                 if(Target *hdr = builder.get_vfs().find_header(i.substr(1), compiler, (i[0]=='"' ? local_incpath : incpath)))
  65                         add_transitive_dependency(*hdr);
  66 }
  67
  68 void CSourceFile::modified()
  69 {
  70         includes.clear();
  71         trans_depends.clear();
  72         find_dependencies();
  73 }