source/package.cpp

   1 #include <msp/strconv.h>
   2 #include <msp/strutils.h>
   3 #include "builder.h"
   4 #include "misc.h"
   5 #include "package.h"
   6
   7 using namespace std;
   8 using namespace Msp;
   9
  10 #include <iostream>
  11
  12 /**
  13 Creates a buildable package.
  14 */
  15 Package::Package(Builder &b, const string &n, const Path::Path &s):
  16         builder(b),
  17         name(n),
  18         buildable(true),
  19         source(s),
  20         conf_done(false),
  21         use_pkgconfig(true),
  22         need_path(false)
  23 { }
  24
  25 /**
  26 Sets the path where the package files were installed.  This is only useful for
  27 non-buildable packages that don't use pkg-config.
  28 */
  29 void Package::set_path(const Msp::Path::Path &p)
  30 {
  31         path=builder.get_cwd()/p;
  32 }
  33
  34 /**
  35 Checks which kinds of things the components of this package install.
  36
  37 @return  A bitmask of installed things
  38 */
  39 unsigned Package::get_install_flags()
  40 {
  41         unsigned flags=0;
  42         for(ComponentList::iterator i=components.begin(); i!=components.end(); ++i)
  43         {
  44                 if(i->get_install())
  45                 {
  46                         if(i->get_type()==Component::PROGRAM)
  47                                 flags|=BIN;
  48                         else if(i->get_type()==Component::LIBRARY || i->get_type()==Component::MODULE)
  49                                 flags|=LIB;
  50                 }
  51                 if(!i->get_install_headers().empty())
  52                         flags|=INCLUDE;
  53         }
  54
  55         return flags;
  56 }
  57
  58 /**
  59 Tries to resolve all references to dependency packages.
  60 */
  61 void Package::resolve_refs()
  62 {
  63         for(PkgRefList::iterator i=requires.begin(); i!=requires.end(); ++i)
  64         {
  65                 Package *pkg=i->resolve();
  66                 if(pkg) all_reqs.push_back(pkg);
  67         }
  68         for(ComponentList::iterator i=components.begin(); i!=components.end(); ++i)
  69         {
  70                 i->resolve_refs();
  71                 const PkgRefList &creqs=i->get_requires();
  72                 for(PkgRefList::const_iterator j=creqs.begin(); j!=creqs.end(); ++j)
  73                         if(j->get_package())
  74                                 all_reqs.push_back(j->get_package());
  75         }
  76 }
  77
  78 /**
  79 Processes configuration options that were most likely obtained from the command
  80 line.
  81 */
  82 void Package::configure(const RawOptionMap &opts, unsigned flag)
  83 {
  84         if(conf_done)
  85                 return;
  86
  87         if(builder.get_verbose()>=3)
  88                 cout<<"Configuring "<<name<<'\n';
  89
  90         if(buildable)
  91         {
  92                 init_config();
  93
  94                 if(flag && config.process(opts) && !builder.get_dry_run())
  95                 {
  96                         if(builder.get_verbose()>=2)
  97                                 cout<<"Configuration of "<<name<<" changed\n";
  98                         config.save(source/".options.cache");
  99                 }
 100
 101                 for(PackageList::iterator i=all_reqs.begin(); i!=all_reqs.end(); ++i)
 102                 {
 103                         if((*i)->get_need_path())
 104                                 (*i)->set_path(config.get_option((*i)->get_name()+"_path").value);
 105                         (*i)->configure(opts, flag&2);
 106                 }
 107         }
 108
 109         create_build_info();
 110
 111         conf_done=true;
 112 }
 113
 114 /**
 115 Creates a non-buildable package with the given name.  Pkg-config is tried first
 116 to get build information.  If it fails, a built-in list of known packages is
 117 consulted.
 118 */
 119 Package *Package::create(Builder &b, const string &name)
 120 {
 121         list<string> argv;
 122         argv.push_back("pkg-config");
 123         argv.push_back("--silence-errors");
 124         argv.push_back("--cflags");
 125         argv.push_back("--libs");
 126         argv.push_back(name);
 127         vector<string> info=split(run_command(argv));
 128
 129         bool need_path=false;
 130         bool use_pkgconfig=true;
 131         if(info.empty())
 132         {
 133                 use_pkgconfig=false;
 134
 135                 //XXX Put these in an external file
 136                 if(name=="opengl")
 137                         info.push_back("-lGL");
 138                 else if(name=="pthread")
 139                         info.push_back("-lpthread");
 140                 else if(name=="gmpxx")
 141                         info.push_back("-lgmpxx");
 142                 else if(name=="fmod4")
 143                         need_path=true;
 144                 else
 145                         return 0;
 146         }
 147
 148         Package *pkg=new Package(b, name, info);
 149         pkg->need_path=need_path;
 150         pkg->use_pkgconfig=use_pkgconfig;
 151         return pkg;
 152 }
 153
 154 /*** private ***/
 155
 156 Package::Package(Builder &b, const string &n, const vector<string> &info):
 157         builder(b),
 158         name(n),
 159         buildable(false)
 160 {
 161         for(vector<string>::const_iterator i=info.begin(); i!=info.end(); ++i)
 162         {
 163                 if(!i->compare(0, 2, "-I"))
 164                         export_binfo.incpath.push_back(i->substr(2));
 165                 else if(!i->compare(0, 2, "-D"))
 166                         export_binfo.defines.push_back(i->substr(2));
 167                 else if(!i->compare(0, 2, "-L"))
 168                         export_binfo.libpath.push_back(i->substr(2));
 169                 else if(!i->compare(0, 2, "-l"))
 170                         export_binfo.libs.push_back(i->substr(2));
 171         }
 172 }
 173
 174 /**
 175 Initializes configuration options and loads cached values.
 176 */
 177 void Package::init_config()
 178 {
 179         config.add_option("tempdir",    "temp",   "Directory for storing temporary files");
 180         config.add_option("optimize",   "0",      "Apply compiler optimizations");
 181         config.add_option("debug",      "0",      "Produce debugging symbols");
 182         config.add_option("cpu",        "auto",   "CPU type to optimize for");
 183         config.add_option("arch",       "native", "Architecture for cross-compiling");
 184         config.add_option("staticlibs", "local",  "Use static libraries");
 185
 186         const char *home=getenv("HOME");
 187         unsigned flags=get_install_flags();
 188         if(flags)
 189                 config.add_option("prefix",     string(home)+"/local"/*"/usr"*/,            "Installation prefix");
 190         /*if(flags&INCLUDE)
 191                 config.add_option("includedir", "$prefix/include", "Header installation directory");
 192         if(flags&BIN)
 193                 config.add_option("includedir", "$prefix/bin",     "Binary installation directory");
 194         if(flags&LIB)
 195                 config.add_option("includedir", "$prefix/lib",     "Library installation directory");
 196         if(flags&DATA)
 197                 config.add_option("includedir", "$prefix/share",   "Data installation directory");*/
 198
 199         for(PkgRefList::iterator i=requires.begin(); i!=requires.end(); ++i)
 200                 if(i->get_package() && i->get_package()->get_need_path())
 201                         config.add_option(i->get_name()+"_path", "", "Path for "+i->get_name());
 202
 203         config.load(source/".options.cache");
 204 }
 205
 206 /**
 207 Fills in build info based on configuration.  All required packages must be
 208 configured when this is called.
 209 */
 210 void Package::create_build_info()
 211 {
 212         if(buildable)
 213         {
 214                 for(PkgRefList::iterator i=requires.begin(); i!=requires.end(); ++i)
 215                 {
 216                         Package *pkg=i->get_package();
 217                         if(!pkg)
 218                                 continue;
 219                         build_info.add(pkg->get_exported_binfo());
 220                         //XXX We probably really only want to pass cflags and defines through
 221                         export_binfo.add(pkg->get_exported_binfo());
 222                 }
 223
 224                 build_info.cflags.push_back("-Wall");
 225                 build_info.cflags.push_back("-Wshadow");
 226                 build_info.cflags.push_back("-Wextra");
 227                 build_info.cflags.push_back("-Wpointer-arith");
 228                 build_info.cflags.push_back("-Wconversion");
 229                 build_info.cflags.push_back("-Werror");
 230
 231                 unsigned flags=get_install_flags();
 232
 233                 if(flags&INCLUDE)
 234                         export_binfo.incpath.push_back((Path::Path(config.get_option("prefix").value)/"include").str());
 235                 if(flags&LIB)
 236                         export_binfo.libpath.push_back((Path::Path(config.get_option("prefix").value)/"lib").str());
 237
 238                 string optimize=config.get_option("optimize").value;
 239                 if(strtol(optimize))
 240                 {
 241                         build_info.cflags.push_back("-O"+optimize);
 242                         string cpu=config.get_option("cpu").value;
 243                         if(cpu!="auto")
 244                                 build_info.cflags.push_back("-march="+cpu);
 245                 }
 246
 247                 if(strtobool(config.get_option("debug").value))
 248                 {
 249                         build_info.cflags.push_back("-ggdb");
 250                         build_info.defines.push_back("DEBUG");
 251                 }
 252
 253                 build_info.unique();
 254
 255                 for(list<Component>::iterator i=components.begin(); i!=components.end(); ++i)
 256                 {
 257                         i->create_build_info();
 258                         if(i->get_type()==Component::LIBRARY)
 259                                 export_binfo.libs.push_back(i->get_name());
 260                 }
 261         }
 262         else if(name=="fmod4")
 263         {
 264                 export_binfo.libs.push_back("fmodex");
 265                 if(!path.empty())
 266                 {
 267                         export_binfo.libpath.push_back((path/"api"/"lib").str());
 268                         export_binfo.incpath.push_back((path/"api"/"inc").str());
 269                 }
 270         }
 271         export_binfo.unique();
 272 }
 273
 274 Package::Loader::Loader(Package &p):
 275         pkg(p)
 276 {
 277         add("version",     &Package::version);
 278         add("description", &Package::description);
 279         add("require",     &Loader::require);
 280         add("program",     &Loader::program);
 281         add("library",     &Loader::library);
 282         add("headers",     &Loader::headers);
 283         add("build_info",  &Loader::build_info);
 284 }
 285
 286 void Package::Loader::require(const string &n)
 287 {
 288         pkg.requires.push_back(PackageRef(pkg.builder, n));
 289 }
 290
 291 void Package::Loader::program(const string &n)
 292 {
 293         Component prog(pkg, Component::PROGRAM, n);
 294         load_sub(prog);
 295         pkg.components.push_back(prog);
 296 }
 297
 298 void Package::Loader::library(const string &n)
 299 {
 300         Component prog(pkg, Component::LIBRARY, n);
 301         load_sub(prog);
 302         pkg.components.push_back(prog);
 303 }
 304
 305 void Package::Loader::headers(const string &n)
 306 {
 307         Component prog(pkg, Component::HEADERS, n);
 308         load_sub(prog);
 309         pkg.components.push_back(prog);
 310 }
 311
 312 void Package::Loader::build_info()
 313 {
 314         load_sub(pkg.build_info);
 315 }