source/pkgconfiggenerator.cpp

   1 #include <msp/fs/utils.h>
   2 #include <msp/io/file.h>
   3 #include <msp/io/print.h>
   4 #include "builder.h"
   5 #include "pkgconfigfile.h"
   6 #include "pkgconfiggenerator.h"
   7
   8 using namespace std;
   9 using namespace Msp;
  10
  11 PkgConfigGenerator::PkgConfigGenerator(Builder &b):
  12         Tool(b, "PCG")
  13 {
  14 }
  15
  16 Target *PkgConfigGenerator::create_target(const list<Target *> &, const string &)
  17 {
  18         throw logic_error("Not implemented");
  19 }
  20
  21 Task *PkgConfigGenerator::run(const Target &target) const
  22 {
  23         const PkgConfigFile &pkgc = dynamic_cast<const PkgConfigFile &>(target);
  24         Worker *worker = new Worker(pkgc);
  25         return new InternalTask(worker);
  26 }
  27
  28
  29 PkgConfigGenerator::Worker::Worker(const PkgConfigFile &t):
  30         target(t)
  31 { }
  32
  33 void PkgConfigGenerator::Worker::main()
  34 {
  35         Builder &builder = target.get_package()->get_builder();
  36         const SourcePackage &spkg = *target.get_package();
  37
  38         IO::BufferedFile out(target.get_path().str(), IO::M_WRITE);
  39         IO::print(out, "prefix=%s\n", builder.get_prefix().str());
  40         IO::print(out, "source=%s\n\n", spkg.get_source_directory());
  41
  42         IO::print(out, "Name: %s\n", spkg.get_label());
  43         IO::print(out, "Description: %s\n", spkg.get_description());
  44         IO::print(out, "Version: %s\n", spkg.get_version());
  45
  46         IO::print(out, "Requires:");
  47         for(const Package *r: spkg.get_required_packages())
  48                 if(r->uses_pkgconfig())
  49                         IO::print(out, " %s", r->get_name());
  50         out.put('\n');
  51
  52         const BuildInfo &binfo = spkg.get_exported_build_info();
  53         IO::print(out, "Libs:");
  54         for(const FS::Path &p: binfo.libpath)
  55                 IO::print(out, " -L%s", prefixify(p, builder.get_prefix()));
  56         for(const string &l: binfo.libs)
  57                 IO::print(out, " -l%s", l);
  58         if(binfo.threads)
  59                 out.write("-pthread");
  60         out.put('\n');
  61
  62         IO::print(out, "Cflags:");
  63         for(const FS::Path &p: binfo.incpath)
  64                 IO::print(out, " -I%s", prefixify(p, builder.get_prefix()));
  65         for(const auto &kvp: binfo.defines)
  66                 if(kvp.second.empty())
  67                         IO::print(out, " -D%s", kvp.first);
  68                 else
  69                         IO::print(out, " -D%s=%s", kvp.first, kvp.second);
  70         out.put('\n');
  71
  72         status = Task::SUCCESS;
  73 }
  74
  75 string PkgConfigGenerator::Worker::prefixify(const FS::Path &path, const FS::Path &prefix)
  76 {
  77         if(FS::descendant_depth(path, prefix)>=0)
  78         {
  79                 FS::Path rel_path = FS::relative(path, prefix);
  80                 return "${prefix}"+rel_path.str().substr(1);
  81         }
  82         else
  83                 return path.str();
  84 }