source/component.cpp

   1 #include <algorithm>
   2 #include <msp/fs/dir.h>
   3 #include <msp/fs/stat.h>
   4 #include <msp/fs/utils.h>
   5 #include <msp/io/print.h>
   6 #include <msp/strings/lexicalcast.h>
   7 #include "builder.h"
   8 #include "component.h"
   9 #include "csourcefile.h"
  10 #include "datafile.h"
  11 #include "executable.h"
  12 #include "file.h"
  13 #include "objectfile.h"
  14 #include "sharedlibrary.h"
  15 #include "sourcepackage.h"
  16 #include "staticlibrary.h"
  17 #include "tarball.h"
  18 #include "target.h"
  19 #include "tool.h"
  20 #include "toolchain.h"
  21
  22 using namespace std;
  23 using namespace Msp;
  24
  25 Component::Component(SourcePackage &p, Type t, const string &n):
  26         package(p),
  27         type(t),
  28         name(n),
  29         install(false),
  30         deflt(true)
  31 { }
  32
  33 void Component::prepare()
  34 {
  35         for(Package::Requirements::const_iterator i=requires.begin(); i!=requires.end(); ++i)
  36                 (*i)->prepare();
  37 }
  38
  39 void Component::create_build_info()
  40 {
  41         BuildInfo final_build_info;
  42
  43         const Package::Requirements &pkg_reqs = package.get_required_packages();
  44         Package::Requirements direct_reqs = requires;
  45         direct_reqs.insert(direct_reqs.end(), pkg_reqs.begin(), pkg_reqs.end());
  46
  47         Package::Requirements all_reqs = direct_reqs;
  48         for(Package::Requirements::iterator i=all_reqs.begin(); i!=all_reqs.end(); ++i)
  49         {
  50                 BuildInfo::UpdateLevel level = BuildInfo::CHAINED;
  51                 if(find(direct_reqs.begin(), direct_reqs.end(), *i)!=direct_reqs.end())
  52                         level = BuildInfo::DEPENDENCY;
  53                 final_build_info.update_from((*i)->get_exported_build_info(), level);
  54
  55                 const Package::Requirements &reqs = (*i)->get_required_packages();
  56                 for(Package::Requirements::const_iterator j=reqs.begin(); j!=reqs.end(); ++j)
  57                         if(find(all_reqs.begin(), all_reqs.end(), *j)==all_reqs.end())
  58                                 all_reqs.push_back(*j);
  59         }
  60
  61         final_build_info.update_from(package.get_build_info());
  62
  63         for(BuildInfo::PathList::iterator i=build_info.incpath.begin(); i!=build_info.incpath.end(); ++i)
  64                 *i = (package.get_source_directory() / *i).str();
  65         for(BuildInfo::PathList::iterator i=build_info.libpath.begin(); i!=build_info.libpath.end(); ++i)
  66                 *i = (package.get_source_directory() / *i).str();
  67
  68         final_build_info.update_from(build_info);
  69         build_info = final_build_info;
  70
  71         for(UseList::const_iterator i=uses.begin(); i!=uses.end(); ++i)
  72         {
  73                 /* Select an include path that contains all the sources for this and the
  74                 used component.  This should produce a sensible result in most cases. */
  75                 FS::Path base;
  76                 for(SourceList::const_iterator j=sources.begin(); j!=sources.end(); ++j)
  77                         base = base.empty() ? *j : FS::common_ancestor(base, *j);
  78                 const SourceList &use_sources = (*i)->get_sources();
  79                 for(SourceList::const_iterator j=use_sources.begin(); j!=use_sources.end(); ++j)
  80                         base = FS::common_ancestor(base, *j);
  81                 build_info.incpath.push_back(base);
  82         }
  83
  84         if(type==LIBRARY || type==MODULE)
  85                 if(build_info.libmode<BuildInfo::DYNAMIC)
  86                         build_info.libmode = BuildInfo::DYNAMIC;
  87
  88         if(build_info.libmode<BuildInfo::DYNAMIC)
  89         {
  90                 for(Package::Requirements::iterator i=all_reqs.begin(); i!=all_reqs.end(); ++i)
  91                 {
  92                         const BuildInfo &ebi = (*i)->get_exported_build_info();
  93                         build_info.libpath.insert(build_info.libpath.end(), ebi.libpath.begin(), ebi.libpath.end());
  94                 }
  95         }
  96 }
  97
  98 void Component::create_targets() const
  99 {
 100         Builder &builder = package.get_builder();
 101         const Toolchain &toolchain = builder.get_toolchain();
 102
 103         SourceList source_filenames = collect_source_files();
 104
 105         string inst_loc;
 106         if(type==TARBALL)
 107         {
 108                 const Tool &tar = toolchain.get_tool("TAR");
 109
 110                 list<Target *> files;
 111                 for(SourceList::const_iterator i=source_filenames.begin(); i!=source_filenames.end(); ++i)
 112                 {
 113                         FileTarget *file = builder.get_vfs().get_target(*i);
 114                         if(!file)
 115                                 file = new File(builder, package, *i);
 116                         files.push_back(file);
 117                 }
 118
 119                 string tarname = name;
 120                 if(name=="@src")
 121                 {
 122                         tarname = package.get_name()+"-"+package.get_version();
 123                         files.insert(files.begin(), &package.get_build_file());
 124
 125                         const Builder::TargetMap &targets = builder.get_targets();
 126                         for(Builder::TargetMap::const_iterator i=targets.begin(); i!=targets.end(); ++i)
 127                                 if(i->second->get_package()==&package && !i->second->is_buildable())
 128                                         if(find(files.begin(), files.end(), i->second)==files.end())
 129                                                 files.push_back(i->second);
 130                 }
 131
 132                 Target *result = tar.create_target(files, tarname);
 133
 134                 builder.get_target("tarballs")->add_dependency(*result);
 135
 136                 return;
 137         }
 138         else if(type==INSTALL)
 139         {
 140                 Target *inst = builder.get_target("install");
 141                 const Tool &copy = toolchain.get_tool("CP");
 142                 for(SourceList::const_iterator i=source_filenames.begin(); i!=source_filenames.end(); ++i)
 143                 {
 144                         FileTarget *ft;
 145                         if(Target *tgt = builder.get_vfs().get_target(*i))
 146                                 ft = dynamic_cast<FileTarget *>(tgt);
 147                         else
 148                                 ft = new File(builder, package, *i);
 149                         inst->add_dependency(*copy.create_target(*ft, name));
 150                 }
 151         }
 152         else if(type==DATAFILE)
 153         {
 154                 const Tool &dcomp = toolchain.get_tool("DATA");
 155
 156                 File *source;
 157                 if(Target *tgt = builder.get_vfs().get_target(source_filenames.front()))
 158                         source = dynamic_cast<File *>(tgt);
 159                 else
 160                         source = new File(builder, package, source_filenames.front());
 161                 Target *result = dcomp.create_target(*source);
 162
 163                 builder.add_primary_target(*result);
 164                 if(install)
 165                         builder.add_installed_target(*result);
 166         }
 167
 168         if(type==PROGRAM || type==LIBRARY || type==MODULE)
 169         {
 170                 list<Target *> objs;
 171                 for(SourceList::const_iterator i=source_filenames.begin(); i!=source_filenames.end(); ++i)
 172                 {
 173                         string ext = FS::extpart(FS::basename(*i));
 174                         const Tool *tool = toolchain.get_tool_for_suffix(ext, true);
 175                         if(tool)
 176                         {
 177                                 Target *src = tool->create_source(*this, *i);
 178                                 if(!src)
 179                                         continue;
 180
 181                                 if(tool->accepts_suffix(ext))
 182                                 {
 183                                         Target *obj = tool->create_target(*src);
 184                                         objs.push_back(obj);
 185                                 }
 186
 187                                 if(type==LIBRARY && install && dynamic_cast<FileTarget *>(src)->is_installable())
 188                                         builder.add_installed_target(*src);
 189                         }
 190                 }
 191
 192                 const Tool &linker = toolchain.get_tool("LINK");
 193
 194                 list<Target *> results;
 195                 if(type==LIBRARY)
 196                 {
 197                         const Tool &archiver = toolchain.get_tool("AR");
 198                         results.push_back(linker.create_target(objs, "shared"));
 199                         results.push_back(archiver.create_target(objs));
 200                 }
 201                 else if(type==MODULE)
 202                         results.push_back(linker.create_target(objs, "shared"));
 203                 else
 204                         results.push_back(linker.create_target(objs));
 205
 206                 const Target::Dependencies &world_deps = builder.get_target("world")->get_dependencies();
 207                 for(UseList::const_iterator i=uses.begin(); i!=uses.end(); ++i)
 208                 {
 209                         /* The world target depends on all primary targets; look for the
 210                         static library belonging to the component.  This is a bit roundabout
 211                         way but gets the job done. */
 212                         bool found = false;
 213                         for(Target::Dependencies::const_iterator j=world_deps.begin(); j!=world_deps.end(); ++j)
 214                                 if((*j)->get_component()==*i && dynamic_cast<StaticLibrary *>(*j))
 215                                 {
 216                                         results.front()->add_dependency(**j);
 217                                         found = true;
 218                                         break;
 219                                 }
 220                         if(!found)
 221                                 builder.problem(package.get_name(), format("Can't find static library %s for component %s", (*i)->get_name(), name));
 222                 }
 223
 224                 for(list<Target *>::const_iterator i=results.begin(); i!=results.end(); ++i)
 225                 {
 226                         builder.add_primary_target(**i);
 227                         if(install)
 228                                 builder.add_installed_target(**i);
 229                 }
 230         }
 231 }
 232
 233 Component::SourceList Component::collect_source_files() const
 234 {
 235         SourceList files;
 236         for(SourceList::const_iterator i=sources.begin(); i!=sources.end(); ++i)
 237         {
 238                 FS::Path path(*i);
 239                 if(FS::is_dir(path))
 240                 {
 241                         package.get_builder().get_logger().log("files", format("Traversing %s", path));
 242                         list<string> sfiles = list_files(path);
 243                         for(list<string>::iterator j=sfiles.begin(); j!=sfiles.end(); ++j)
 244                                 files.push_back(path / *j);
 245                 }
 246                 else
 247                         files.push_back(path);
 248         }
 249
 250         return files;
 251 }
 252
 253
 254 Component::Loader::Loader(Component &c):
 255         DataFile::ObjectLoader<Component>(c)
 256 {
 257         add("source",          &Loader::source);
 258         add("install",         &Component::install);
 259         add("install_map",     &Loader::install_map);
 260         add("build_info",      &Loader::build_info);
 261         add("require",         &Loader::require);
 262         add("default",         &Component::deflt);
 263         add("use",             &Loader::use);
 264 }
 265
 266 void Component::Loader::source(const string &s)
 267 {
 268         obj.sources.push_back((obj.package.get_source_directory()/s).str());
 269 }
 270
 271 void Component::Loader::require(const string &n)
 272 {
 273         Package *req = obj.package.get_builder().get_package_manager().find_package(n);
 274         if(req)
 275                 obj.requires.push_back(req);
 276 }
 277
 278 void Component::Loader::build_info()
 279 {
 280         load_sub(obj.build_info);
 281 }
 282
 283 void Component::Loader::install_map()
 284 {
 285         load_sub(obj.install_map, obj.package.get_source_directory());
 286 }
 287
 288 void Component::Loader::use(const string &n)
 289 {
 290         const SourcePackage::ComponentList &components = obj.package.get_components();
 291         for(SourcePackage::ComponentList::const_iterator i=components.begin(); i!=components.end(); ++i)
 292                 if(i->get_name()==n && i->get_type()==LIBRARY)
 293                 {
 294                         obj.uses.push_back(&*i);
 295                         return;
 296                 }
 297         throw invalid_argument("Component::Loader::use");
 298 }