source/lib/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 <msp/strings/utils.h>
   8 #include "builder.h"
   9 #include "component.h"
  10 #include "sourcepackage.h"
  11
  12 using namespace std;
  13 using namespace Msp;
  14
  15 void Component::prepare()
  16 {
  17         for(Package *r: required_pkgs)
  18         {
  19                 r->prepare();
  20                 broken |= r->is_broken();
  21         }
  22
  23         if(!problems.empty())
  24                 broken = true;
  25 }
  26
  27 void Component::create_build_info()
  28 {
  29         BuildInfo final_build_info;
  30         string build_macro = toupper(name)+"_BUILD";
  31         for(char &c: build_macro)
  32                 if(!isalnum(static_cast<unsigned char>(c)))
  33                         c = '_';
  34         final_build_info.defines[build_macro] = "1";
  35
  36         const Package::Requirements &pkg_reqs = package.get_required_packages();
  37         Package::Requirements direct_reqs = required_pkgs;
  38         direct_reqs.insert(direct_reqs.end(), pkg_reqs.begin(), pkg_reqs.end());
  39         for(Package *r: direct_reqs)
  40                 final_build_info.update_from(r->get_exported_build_info(), BuildInfo::DEPENDENCY);
  41
  42         Package::Requirements all_reqs = direct_reqs;
  43         deque<Package *> queue(direct_reqs.begin(), direct_reqs.end());
  44         while(!queue.empty())
  45         {
  46                 Package *req = queue.front();
  47                 queue.pop_front();
  48
  49                 for(Package *r: req->get_required_packages())
  50                         if(!any_equals(all_reqs, r))
  51                         {
  52                                 final_build_info.update_from(r->get_exported_build_info(), BuildInfo::CHAINED);
  53                                 all_reqs.push_back(r);
  54                                 queue.push_back(r);
  55                         }
  56         }
  57
  58         final_build_info.update_from(package.get_build_info());
  59         final_build_info.update_from(build_info);
  60         build_info = final_build_info;
  61
  62         for(FS::Path &p: build_info.incpath)
  63                 p = (package.get_source_directory()/p).str();
  64         for(FS::Path &p: build_info.libpath)
  65                 p = (package.get_source_directory()/p).str();
  66 }
  67
  68 FS::Path Component::get_temp_directory() const
  69 {
  70         return package.get_temp_directory()/name;
  71 }
  72
  73 string Component::flatten_source_path(const FS::Path &source) const
  74 {
  75         FS::Path temp_dir = get_temp_directory();
  76         FS::Path rel_src;
  77         if(FS::descendant_depth(source, temp_dir)>=0)
  78                 rel_src = FS::relative(source, temp_dir);
  79         else
  80                 rel_src = FS::relative(source, package.get_source_directory());
  81
  82         string fn;
  83         for(const string &c: rel_src)
  84                 if(c!=".")
  85                         append(fn, "_", c);
  86
  87         return fn;
  88 }
  89
  90 BuildInfo Component::get_build_info_for_path(const FS::Path &path) const
  91 {
  92         // XXX Cache these and check that the directories actually exist before adding them
  93         BuildInfo binfo = build_info;
  94
  95         if(!overlays.empty())
  96         {
  97                 FS::Path dir = FS::dirname(path);
  98                 string last = FS::basename(dir);
  99                 if(any_equals(overlays, last))
 100                         dir = FS::dirname(dir);
 101
 102                 if(any_equals(sources, dir))
 103                 {
 104                         binfo.local_incpath.push_back(dir);
 105                         for(const string &o: overlays)
 106                                 binfo.local_incpath.push_back(dir/o);
 107                 }
 108         }
 109         return binfo;
 110 }
 111
 112 vector<FS::Path> Component::collect_source_files() const
 113 {
 114         vector<FS::Path> files;
 115         for(const FS::Path &p: sources)
 116         {
 117                 if(FS::is_dir(p))
 118                 {
 119                         vector<FS::Path> dirs;
 120                         dirs.reserve(1+overlays.size());
 121                         dirs.push_back(p);
 122                         for(const string &o: overlays)
 123                         {
 124                                 FS::Path opath = p/o;
 125                                 if(FS::is_dir(opath))
 126                                         dirs.push_back(opath);
 127                         }
 128                         set<string> overlay_files;
 129                         for(auto j=dirs.begin(); j!=dirs.end(); ++j)
 130                         {
 131                                 package.get_builder().get_logger().log("files", "Traversing %s", *j);
 132                                 for(const string &f: list_files(*j))
 133                                 {
 134                                         if(j!=dirs.begin())
 135                                         {
 136                                                 if(overlay_files.count(f))
 137                                                         continue;
 138                                                 overlay_files.insert(f);
 139                                         }
 140                                         FS::Path fn = *j/f;
 141                                         if(!FS::is_dir(fn))
 142                                                 files.push_back(fn);
 143                                 }
 144                         }
 145                 }
 146                 else
 147                 {
 148                         files.push_back(p);
 149                         for(const string &o: overlays)
 150                         {
 151                                 FS::Path opath = FS::dirname(p)/o/FS::basename(p);
 152                                 if(FS::is_reg(opath))
 153                                         files.push_back(opath);
 154                         }
 155                 }
 156         }
 157
 158         return files;
 159 }
 160
 161
 162 Component::Loader::Loader(Component &c):
 163         DataFile::ObjectLoader<Component>(c),
 164         ConditionalLoader(c.package, format("%s/%s", c.package.get_name(), c.name))
 165 {
 166         add("overlay",         &Loader::overlay);
 167         add("source",          &Loader::source);
 168         add("install",         &Component::install);
 169         add("install_map",     &Loader::install_map);
 170         add("build_info",      &Loader::build_info);
 171         add("require",         &Loader::require);
 172         add("default",         &Component::deflt);
 173 }
 174
 175 void Component::Loader::build_info()
 176 {
 177         load_sub(obj.build_info);
 178 }
 179
 180 void Component::Loader::install_map()
 181 {
 182         load_sub(obj.install_map, obj.package.get_source_directory());
 183 }
 184
 185 void Component::Loader::overlay(const string &o)
 186 {
 187         obj.overlays.push_back(o);
 188 }
 189
 190 void Component::Loader::require(const string &n)
 191 {
 192         Package *req = obj.package.get_builder().get_package_manager().find_package(n);
 193         if(req)
 194                 obj.required_pkgs.push_back(req);
 195         else
 196                 obj.problems.push_back(format("Required package %s not found", n));
 197 }
 198
 199 void Component::Loader::source(const string &s)
 200 {
 201         FS::Path src_path = obj.package.get_source_directory()/s;
 202         if(!FS::exists(src_path))
 203                 throw IO::file_not_found(src_path.str());
 204         obj.sources.push_back(src_path);
 205 }