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 FS::Path &p):
  15         SourceFile(b, p)
  16 { }
  17
  18 CSourceFile::CSourceFile(Builder &b, const Component &c, const FS::Path &p):
  19         SourceFile(b, c, p)
  20 {
  21         string ext = FS::extpart(FS::basename(path));
  22         if(ext==".h" || ext==".H" || ext==".hpp")
  23                 install_location = FS::Path("include")/package->get_name();
  24 }
  25
  26 void CSourceFile::parse_includes(IO::Base &in)
  27 {
  28         static Regex r_include("^[ \t]*#include[ \t]+([\"<].*)[\">]");
  29
  30         string line;
  31         while(in.getline(line))
  32                 if(RegMatch match = r_include.match(line))
  33                         includes.push_back(match[1].str);
  34 }
  35
  36 void CSourceFile::find_dependencies()
  37 {
  38         if(!component || !mtime)
  39                 return;
  40
  41         const SourcePackage &spkg = component->get_package();
  42
  43         Cache &cache = spkg.get_cache();
  44         if(mtime<cache.get_mtime() && cache.has_key(this, "includes"))
  45                 includes = cache.get_values(this, "includes");
  46         else
  47         {
  48                 IO::BufferedFile in(path.str());
  49
  50                 builder.get_logger().log("files", "Reading includes from %s", path.str());
  51
  52                 parse_includes(in);
  53                 cache.set_values(this, "includes", includes);
  54         }
  55
  56         const BuildInfo &build_info = component->get_build_info_for_path(path);
  57         const auto &incpath = build_info.incpath;
  58         VirtualFileSystem::SearchPath local_incpath;
  59         local_incpath.reserve(1+build_info.local_incpath.size()+incpath.size());
  60         local_incpath.push_back(FS::dirname(path).str());
  61         local_incpath.insert(local_incpath.end(), build_info.local_incpath.begin(), build_info.local_incpath.end());
  62         local_incpath.insert(local_incpath.end(), incpath.begin(), incpath.end());
  63
  64         Tool *compiler = builder.get_toolchain().get_tool_for_suffix(FS::extpart(FS::basename(path)), true);
  65         if(compiler)
  66                 compiler->prepare();
  67         for(const string &i: includes)
  68                 if(Target *hdr = builder.get_vfs().find_header(i.substr(1), compiler, (i[0]=='"' ? local_incpath : incpath)))
  69                         add_transitive_dependency(*hdr);
  70 }
  71
  72 void CSourceFile::modified()
  73 {
  74         includes.clear();
  75         trans_depends.clear();
  76         find_dependencies();
  77 }