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