source/component.cpp

   1 #include <deque>
   2 #include <msp/core/algorithm.h>
   3 #include <msp/fs/dir.h>
   4 #include <msp/fs/stat.h>
   5 #include <msp/fs/utils.h>
   6 #include <msp/strings/format.h>
   7 #include "builder.h"
   8 #include "component.h"
   9 #include "sourcepackage.h"
  10
  11 using namespace std;
  12 using namespace Msp;
  13
  14 Component::Component(SourcePackage &p, const string &n):
  15         package(p),
  16         name(n),
  17         install(false),
  18         deflt(true)
  19 { }
  20
  21 void Component::prepare()
  22 {
  23         for(Package *r: requires)
  24                 r->prepare();
  25 }
  26
  27 void Component::create_build_info()
  28 {
  29         BuildInfo final_build_info;
  30
  31         const Package::Requirements &pkg_reqs = package.get_required_packages();
  32         Package::Requirements direct_reqs = requires;
  33         direct_reqs.insert(direct_reqs.end(), pkg_reqs.begin(), pkg_reqs.end());
  34         for(Package *r: direct_reqs)
  35                 final_build_info.update_from(r->get_exported_build_info(), BuildInfo::DEPENDENCY);
  36
  37         Package::Requirements all_reqs = direct_reqs;
  38         deque<Package *> queue(direct_reqs.begin(), direct_reqs.end());
  39         while(!queue.empty())
  40         {
  41                 Package *req = queue.front();
  42                 queue.pop_front();
  43
  44                 for(Package *r: req->get_required_packages())
  45                         if(!any_equals(all_reqs, r))
  46                         {
  47                                 final_build_info.update_from(r->get_exported_build_info(), BuildInfo::CHAINED);
  48                                 all_reqs.push_back(r);
  49                                 queue.push_back(r);
  50                         }
  51         }
  52
  53         final_build_info.update_from(package.get_build_info());
  54         final_build_info.update_from(build_info);
  55         build_info = final_build_info;
  56
  57         for(FS::Path &p: build_info.incpath)
  58                 p = (package.get_source_directory()/p).str();
  59         for(FS::Path &p: build_info.libpath)
  60                 p = (package.get_source_directory()/p).str();
  61 }
  62
  63 BuildInfo Component::get_build_info_for_path(const FS::Path &path) const
  64 {
  65         // XXX Cache these and check that the directories actually exist before adding them
  66         BuildInfo binfo = build_info;
  67
  68         FS::Path gen_dir = package.get_temp_directory()/"generated";
  69         if(FS::descendant_depth(path, gen_dir)>=0)
  70         {
  71                 FS::Path subdir = FS::dirname(FS::relative(path, gen_dir));
  72                 binfo.local_incpath.push_back(package.get_source_directory()/subdir);
  73         }
  74         else
  75         {
  76                 FS::Path subdir = FS::dirname(FS::relative(path, package.get_source_directory()));
  77                 binfo.local_incpath.push_back(gen_dir/subdir);
  78         }
  79
  80         if(!overlays.empty())
  81         {
  82                 FS::Path dir = FS::dirname(path);
  83                 string last = FS::basename(dir);
  84                 if(any_equals(overlays, last))
  85                         dir = FS::dirname(dir);
  86
  87                 if(any_equals(sources, dir))
  88                 {
  89                         binfo.local_incpath.push_back(dir);
  90                         for(const string &o: overlays)
  91                                 binfo.local_incpath.push_back(dir/o);
  92                 }
  93         }
  94         return binfo;
  95 }
  96
  97 vector<FS::Path> Component::collect_source_files() const
  98 {
  99         vector<FS::Path> files;
 100         for(const FS::Path &p: sources)
 101         {
 102                 if(FS::is_dir(p))
 103                 {
 104                         vector<FS::Path> dirs;
 105                         dirs.reserve(1+overlays.size());
 106                         dirs.push_back(p);
 107                         for(const string &o: overlays)
 108                         {
 109                                 FS::Path opath = p/o;
 110                                 if(FS::is_dir(opath))
 111                                         dirs.push_back(opath);
 112                         }
 113                         set<string> overlay_files;
 114                         for(auto j=dirs.begin(); j!=dirs.end(); ++j)
 115                         {
 116                                 package.get_builder().get_logger().log("files", "Traversing %s", *j);
 117                                 for(const string &f: list_files(*j))
 118                                 {
 119                                         if(j!=dirs.begin())
 120                                         {
 121                                                 if(overlay_files.count(f))
 122                                                         continue;
 123                                                 overlay_files.insert(f);
 124                                         }
 125                                         FS::Path fn = *j/f;
 126                                         if(!FS::is_dir(fn))
 127                                                 files.push_back(fn);
 128                                 }
 129                         }
 130                 }
 131                 else
 132                 {
 133                         files.push_back(p);
 134                         for(const string &o: overlays)
 135                         {
 136                                 FS::Path opath = FS::dirname(p)/o/FS::basename(p);
 137                                 if(FS::is_reg(opath))
 138                                         files.push_back(opath);
 139                         }
 140                 }
 141         }
 142
 143         return files;
 144 }
 145
 146
 147 Component::Loader::Loader(Component &c):
 148         DataFile::ObjectLoader<Component>(c),
 149         ConditionalLoader(c.package, format("%s/%s", c.package.get_name(), c.name))
 150 {
 151         add("overlay",         &Loader::overlay);
 152         add("source",          &Loader::source);
 153         add("install",         &Component::install);
 154         add("install_map",     &Loader::install_map);
 155         add("build_info",      &Loader::build_info);
 156         add("require",         &Loader::require);
 157         add("default",         &Component::deflt);
 158 }
 159
 160 void Component::Loader::build_info()
 161 {
 162         load_sub(obj.build_info);
 163 }
 164
 165 void Component::Loader::install_map()
 166 {
 167         load_sub(obj.install_map, obj.package.get_source_directory());
 168 }
 169
 170 void Component::Loader::overlay(const string &o)
 171 {
 172         obj.overlays.push_back(o);
 173 }
 174
 175 void Component::Loader::require(const string &n)
 176 {
 177         Package *req = obj.package.get_builder().get_package_manager().find_package(n);
 178         if(req)
 179                 obj.requires.push_back(req);
 180         else
 181                 obj.problems.push_back(format("Required package %s not found", n));
 182 }
 183
 184 void Component::Loader::source(const string &s)
 185 {
 186         obj.sources.push_back((obj.package.get_source_directory()/s).str());
 187 }