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(!sources.empty())
  24         {
  25                 for(auto i=sources.begin(); i!=sources.end(); ++i)
  26                 {
  27                         FS::Path s = *i;
  28                         if(!FS::is_dir(s))
  29                                 s = FS::dirname(s);
  30
  31                         if(i==sources.begin())
  32                                 source_base_path = s;
  33                         else
  34                                 source_base_path = FS::common_ancestor(source_base_path, s);
  35                 }
  36         }
  37
  38         if(!problems.empty())
  39                 broken = true;
  40 }
  41
  42 void Component::create_build_info()
  43 {
  44         BuildInfo final_build_info;
  45         string build_macro = toupper(name)+"_BUILD";
  46         for(char &c: build_macro)
  47                 if(!isalnum(static_cast<unsigned char>(c)))
  48                         c = '_';
  49         final_build_info.defines[build_macro] = "1";
  50
  51         const Package::Requirements &pkg_reqs = package.get_required_packages();
  52         Package::Requirements direct_reqs = required_pkgs;
  53         direct_reqs.insert(direct_reqs.end(), pkg_reqs.begin(), pkg_reqs.end());
  54         for(Package *r: direct_reqs)
  55                 final_build_info.update_from(r->get_exported_build_info(), BuildInfo::DEPENDENCY);
  56
  57         Package::Requirements all_reqs = direct_reqs;
  58         deque<Package *> queue(direct_reqs.begin(), direct_reqs.end());
  59         while(!queue.empty())
  60         {
  61                 Package *req = queue.front();
  62                 queue.pop_front();
  63
  64                 for(Package *r: req->get_required_packages())
  65                         if(!any_equals(all_reqs, r))
  66                         {
  67                                 final_build_info.update_from(r->get_exported_build_info(), BuildInfo::CHAINED);
  68                                 all_reqs.push_back(r);
  69                                 queue.push_back(r);
  70                         }
  71         }
  72
  73         final_build_info.update_from(package.get_build_info());
  74         final_build_info.update_from(build_info);
  75         build_info = final_build_info;
  76
  77         for(FS::Path &p: build_info.incpath)
  78                 p = (package.get_source_directory()/p).str();
  79         for(FS::Path &p: build_info.libpath)
  80                 p = (package.get_source_directory()/p).str();
  81 }
  82
  83 FS::Path Component::get_temp_directory() const
  84 {
  85         return package.get_temp_directory()/name;
  86 }
  87
  88 string Component::flatten_source_path(const FS::Path &source) const
  89 {
  90         FS::Path temp_dir = get_temp_directory();
  91         FS::Path rel_src;
  92         if(FS::descendant_depth(source, temp_dir)>=0)
  93                 rel_src = FS::relative(source, temp_dir);
  94         else
  95                 rel_src = FS::relative(source, source_base_path);
  96
  97         string fn;
  98         for(const string &c: rel_src)
  99                 if(c!=".")
 100                         append(fn, "_", c);
 101
 102         return fn;
 103 }
 104
 105 BuildInfo Component::get_build_info_for_path(const FS::Path &path) const
 106 {
 107         // XXX Cache these and check that the directories actually exist before adding them
 108         BuildInfo binfo = build_info;
 109
 110         if(!overlays.empty())
 111         {
 112                 FS::Path dir = FS::dirname(path);
 113                 string last = FS::basename(dir);
 114                 if(any_equals(overlays, last))
 115                         dir = FS::dirname(dir);
 116
 117                 if(any_equals(sources, dir))
 118                 {
 119                         binfo.local_incpath.push_back(dir);
 120                         for(const string &o: overlays)
 121                                 binfo.local_incpath.push_back(dir/o);
 122                 }
 123         }
 124         return binfo;
 125 }
 126
 127 vector<FS::Path> Component::collect_source_files() const
 128 {
 129         vector<FS::Path> files;
 130         for(const FS::Path &p: sources)
 131         {
 132                 if(FS::is_dir(p))
 133                 {
 134                         vector<FS::Path> dirs;
 135                         dirs.reserve(1+overlays.size());
 136                         dirs.push_back(p);
 137                         for(const string &o: overlays)
 138                         {
 139                                 FS::Path opath = p/o;
 140                                 if(FS::is_dir(opath))
 141                                         dirs.push_back(opath);
 142                         }
 143                         set<string> overlay_files;
 144                         for(auto j=dirs.begin(); j!=dirs.end(); ++j)
 145                         {
 146                                 package.get_builder().get_logger().log("files", "Traversing %s", *j);
 147                                 for(const string &f: list_files(*j))
 148                                 {
 149                                         if(j!=dirs.begin())
 150                                         {
 151                                                 if(overlay_files.count(f))
 152                                                         continue;
 153                                                 overlay_files.insert(f);
 154                                         }
 155                                         FS::Path fn = *j/f;
 156                                         if(!FS::is_dir(fn))
 157                                                 files.push_back(fn);
 158                                 }
 159                         }
 160                 }
 161                 else
 162                 {
 163                         files.push_back(p);
 164                         for(const string &o: overlays)
 165                         {
 166                                 FS::Path opath = FS::dirname(p)/o/FS::basename(p);
 167                                 if(FS::is_reg(opath))
 168                                         files.push_back(opath);
 169                         }
 170                 }
 171         }
 172
 173         return files;
 174 }
 175
 176
 177 Component::Loader::Loader(Component &c):
 178         DataFile::ObjectLoader<Component>(c),
 179         ConditionalLoader(c.package, format("%s/%s", c.package.get_name(), c.name))
 180 {
 181         add("overlay",         &Loader::overlay);
 182         add("source",          &Loader::source);
 183         add("install",         &Component::install);
 184         add("install_map",     &Loader::install_map);
 185         add("build_info",      &Loader::build_info);
 186         add("require",         &Loader::require);
 187         add("default",         &Component::deflt);
 188 }
 189
 190 void Component::Loader::build_info()
 191 {
 192         load_sub(obj.build_info);
 193 }
 194
 195 void Component::Loader::install_map()
 196 {
 197         load_sub(obj.install_map, obj.package.get_source_directory());
 198 }
 199
 200 void Component::Loader::overlay(const string &o)
 201 {
 202         obj.overlays.push_back(o);
 203 }
 204
 205 void Component::Loader::require(const string &n)
 206 {
 207         Package *req = obj.package.get_builder().get_package_manager().find_package(n);
 208         if(req)
 209                 obj.required_pkgs.push_back(req);
 210         else
 211                 obj.problems.push_back(format("Required package %s not found", n));
 212 }
 213
 214 void Component::Loader::source(const string &s)
 215 {
 216         FS::Path src_path = obj.package.get_source_directory()/s;
 217         if(!FS::exists(src_path))
 218                 throw IO::file_not_found(src_path.str());
 219         obj.sources.push_back(src_path);
 220 }