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