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 || !buildable)
  85                 return;
  86
  87         if(builder.get_verbose()>=3)
  88                 cout<<"Configuring "<<name<<'\n';
  89
  90         init_config();
  91
  92         if(flag && config.process(opts) && !builder.get_dry_run())
  93         {
  94                 if(builder.get_verbose()>=2)
  95                         cout<<"Configuration of "<<name<<" changed.\n";
  96                 config.save(source/".options.cache");
  97         }
  98
  99         for(PackageList::iterator i=all_reqs.begin(); i!=all_reqs.end(); ++i)
 100         {
 101                 (*i)->configure(opts, flag&2);
 102                 if((*i)->get_need_path())
 103                         (*i)->set_path(config.get_option((*i)->get_name()+"_path").value);
 104         }
 105
 106         create_build_info();
 107
 108         conf_done=true;
 109 }
 110
 111 /**
 112 Creates a non-buildable package with the given name.  Pkg-config is tried first
 113 to get build information.  If it fails, a built-in list of known packages is
 114 consulted.
 115 */
 116 Package *Package::create(Builder &b, const string &name)
 117 {
 118         list<string> argv;
 119         argv.push_back("pkg-config");
 120         argv.push_back("--silence-errors");
 121         argv.push_back("--cflags");
 122         argv.push_back("--libs");
 123         argv.push_back(name);
 124         vector<string> info=split(run_command(argv));
 125
 126         bool need_path=false;
 127         bool use_pkgconfig=true;
 128         if(info.empty())
 129         {
 130                 use_pkgconfig=false;
 131
 132                 //XXX Put these in an external file
 133                 if(name=="opengl")
 134                         info.push_back("-lGL");
 135                 else if(name=="pthread")
 136                         info.push_back("-lpthread");
 137                 else if(name=="gmpxx")
 138                         info.push_back("-lgmpxx");
 139                 else if(name=="fmod4")
 140                         need_path=true;
 141                 else
 142                         return 0;
 143         }
 144
 145         Package *pkg=new Package(b, name, info);
 146         pkg->need_path=need_path;
 147         pkg->use_pkgconfig=use_pkgconfig;
 148         return pkg;
 149 }
 150
 151 /*** private ***/
 152
 153 Package::Package(Builder &b, const string &n, const vector<string> &info):
 154         builder(b),
 155         name(n),
 156         buildable(false)
 157 {
 158         for(vector<string>::const_iterator i=info.begin(); i!=info.end(); ++i)
 159         {
 160                 if(!i->compare(0, 2, "-I"))
 161                         export_binfo.incpath.push_back(i->substr(2));
 162                 else if(!i->compare(0, 2, "-D"))
 163                         export_binfo.defines.push_back(i->substr(2));
 164                 else if(!i->compare(0, 2, "-L"))
 165                         export_binfo.libpath.push_back(i->substr(2));
 166                 else if(!i->compare(0, 2, "-l"))
 167                         export_binfo.libs.push_back(i->substr(2));
 168         }
 169 }
 170
 171 /**
 172 Initializes configuration options and loads cached values.
 173 */
 174 void Package::init_config()
 175 {
 176         config.add_option("tempdir",    "temp",   "Directory for storing temporary files");
 177         config.add_option("optimize",   "0",      "Apply compiler optimizations");
 178         config.add_option("debug",      "0",      "Produce debugging symbols");
 179         config.add_option("cpu",        "auto",   "CPU type to optimize for");
 180         config.add_option("arch",       "native", "Architecture for cross-compiling");
 181         config.add_option("staticlibs", "local",  "Use static libraries");
 182
 183         const char *home=getenv("HOME");
 184         unsigned flags=get_install_flags();
 185         if(flags)
 186                 config.add_option("prefix",     string(home)+"/local"/*"/usr"*/,            "Installation prefix");
 187         /*if(flags&INCLUDE)
 188                 config.add_option("includedir", "$prefix/include", "Header installation directory");
 189         if(flags&BIN)
 190                 config.add_option("includedir", "$prefix/bin",     "Binary installation directory");
 191         if(flags&LIB)
 192                 config.add_option("includedir", "$prefix/lib",     "Library installation directory");
 193         if(flags&DATA)
 194                 config.add_option("includedir", "$prefix/share",   "Data installation directory");*/
 195
 196         for(PkgRefList::iterator i=requires.begin(); i!=requires.end(); ++i)
 197                 if(i->get_package() && i->get_package()->get_need_path())
 198                         config.add_option(i->get_name()+"_path", "", "Path for "+i->get_name());
 199
 200         config.load(source/".options.cache");
 201 }
 202
 203 /**
 204 Fills in build info based on configuration.  All required packages must be
 205 configured when this is called.
 206 */
 207 void Package::create_build_info()
 208 {
 209         if(buildable)
 210         {
 211                 for(PkgRefList::iterator i=requires.begin(); i!=requires.end(); ++i)
 212                 {
 213                         Package *pkg=i->get_package();
 214                         if(!pkg)
 215                                 continue;
 216                         build_info.add(pkg->get_exported_binfo());
 217                         //XXX We probably really only want to pass cflags and defines through
 218                         export_binfo.add(pkg->get_exported_binfo());
 219                 }
 220
 221                 build_info.cflags.push_back("-Wall");
 222                 build_info.cflags.push_back("-Wshadow");
 223                 build_info.cflags.push_back("-Wextra");
 224                 build_info.cflags.push_back("-Wpointer-arith");
 225                 build_info.cflags.push_back("-Wconversion");
 226                 build_info.cflags.push_back("-Werror");
 227
 228                 unsigned flags=get_install_flags();
 229
 230                 if(flags&INCLUDE)
 231                         export_binfo.incpath.push_back((Path::Path(config.get_option("prefix").value)/"include").str());
 232                 if(flags&LIB)
 233                         export_binfo.libpath.push_back((Path::Path(config.get_option("prefix").value)/"lib").str());
 234
 235                 string optimize=config.get_option("optimize").value;
 236                 if(strtol(optimize))
 237                 {
 238                         build_info.cflags.push_back("-O"+optimize);
 239                         string cpu=config.get_option("cpu").value;
 240                         if(cpu!="auto")
 241                                 build_info.cflags.push_back("-march="+cpu);
 242                 }
 243
 244                 if(strtobool(config.get_option("debug").value))
 245                 {
 246                         build_info.cflags.push_back("-ggdb");
 247                         build_info.defines.push_back("DEBUG");
 248                 }
 249
 250                 build_info.unique();
 251
 252                 for(list<Component>::iterator i=components.begin(); i!=components.end(); ++i)
 253                 {
 254                         i->create_build_info();
 255                         if(i->get_type()==Component::LIBRARY)
 256                                 export_binfo.libs.push_back(i->get_name());
 257                 }
 258         }
 259         else if(name=="fmod4")
 260         {
 261                 export_binfo.libs.push_back("fmodex");
 262                 if(!path.empty())
 263                 {
 264                         export_binfo.libpath.push_back((path/"api"/"lib").str());
 265                         export_binfo.incpath.push_back((path/"api"/"inc").str());
 266                 }
 267         }
 268         export_binfo.unique();
 269 }
 270
 271 Package::Loader::Loader(Package &p):
 272         pkg(p)
 273 {
 274         add("version",     &Package::version);
 275         add("description", &Package::description);
 276         add("require",     &Loader::require);
 277         add("program",     &Loader::program);
 278         add("library",     &Loader::library);
 279         add("headers",     &Loader::headers);
 280         add("build_info",  &Loader::build_info);
 281 }
 282
 283 void Package::Loader::require(const string &n)
 284 {
 285         pkg.requires.push_back(PackageRef(pkg.builder, n));
 286 }
 287
 288 void Package::Loader::program(const string &n)
 289 {
 290         Component prog(pkg, Component::PROGRAM, n);
 291         load_sub(prog);
 292         pkg.components.push_back(prog);
 293 }
 294
 295 void Package::Loader::library(const string &n)
 296 {
 297         Component prog(pkg, Component::LIBRARY, n);
 298         load_sub(prog);
 299         pkg.components.push_back(prog);
 300 }
 301
 302 void Package::Loader::headers(const string &n)
 303 {
 304         Component prog(pkg, Component::HEADERS, n);
 305         load_sub(prog);
 306         pkg.components.push_back(prog);
 307 }
 308
 309 void Package::Loader::build_info()
 310 {
 311         load_sub(pkg.build_info);
 312 }