source/packagemanager.cpp

   1 #include <cstdlib>
   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/format.h>
   7 #include <msp/strings/utils.h>
   8 #include <msp/time/units.h>
   9 #include <msp/time/utils.h>
  10 #include "binarypackage.h"
  11 #include "builder.h"
  12 #include "externaltask.h"
  13 #include "package.h"
  14 #include "packagemanager.h"
  15
  16 using namespace std;
  17 using namespace Msp;
  18
  19 PackageManager::PackageManager(Builder &b):
  20         builder(b),
  21         no_externals(false),
  22         main_pkg(0),
  23         env_set(false)
  24 { }
  25
  26 PackageManager::~PackageManager()
  27 {
  28         for(PackageMap::iterator i=packages.begin(); i!=packages.end(); ++i)
  29                 delete i->second;
  30 }
  31
  32 void PackageManager::append_package_path(const FS::Path &p)
  33 {
  34         pkg_path.push_back(p);
  35 }
  36
  37 void PackageManager::append_binary_package_path(const FS::Path &p)
  38 {
  39         binpkg_path.push_back(p);
  40 }
  41
  42 void PackageManager::set_no_externals(bool x)
  43 {
  44         no_externals = x;
  45 }
  46
  47 void PackageManager::add_package(Package *pkg)
  48 {
  49         PackageMap::iterator i = packages.find(pkg->get_name());
  50         if(i!=packages.end())
  51         {
  52                 if(i->second!=pkg)
  53                         throw invalid_argument("Package name conflict");
  54                 else
  55                         throw logic_error("Package is already managed");
  56         }
  57
  58         if(packages.empty())
  59                 main_pkg = pkg;
  60
  61         packages.insert(PackageMap::value_type(pkg->get_name(), pkg));
  62 }
  63
  64 Package *PackageManager::get_package(const string &name) const
  65 {
  66         PackageMap::const_iterator i = packages.find(name);
  67         if(i!=packages.end())
  68                 return i->second;
  69
  70         return 0;
  71 }
  72
  73 Package &PackageManager::get_main_package() const
  74 {
  75         if(!main_pkg)
  76                 throw logic_error("No packages");
  77         return *main_pkg;
  78 }
  79
  80 Package *PackageManager::find_package(const string &name)
  81 {
  82         if(not_found.count(name))
  83                 return 0;
  84
  85         if(Package *pkg = get_package(name))
  86                 return pkg;
  87
  88         if(!no_externals)
  89         {
  90                 FS::Path path = get_package_location(name);
  91                 if(!path.empty())
  92                 {
  93                         builder.load_build_file(path/"Build");
  94                         PackageMap::iterator i = packages.find(name);
  95                         if(i!=packages.end())
  96                                 return i->second;
  97                 }
  98         }
  99
 100         FS::Path path = get_binary_package_file(name);
 101         if(!path.empty())
 102         {
 103                 builder.load_build_file(path);
 104                 if(Package *pkg = get_package(name))
 105                         return pkg;
 106         }
 107
 108         try
 109         {
 110                 // Package source not found - create a binary package
 111                 string flags_str = run_pkgconfig(name, "flags");
 112                 vector<string> flags = split(flags_str);
 113                 Package *pkg = BinaryPackage::from_flags(builder, name, flags);
 114                 packages.insert(PackageMap::value_type(name, pkg));
 115                 return pkg;
 116         }
 117         catch(...)
 118         {
 119                 builder.problem(name, "not found");
 120                 not_found.insert(name);
 121                 return 0;
 122         }
 123 }
 124
 125 string PackageManager::run_pkgconfig(const string &pkg, const string &what)
 126 {
 127         if(!env_set)
 128         {
 129                 const FS::Path &prefix = builder.get_prefix();
 130                 if(prefix.str()!="/usr")
 131                 {
 132                         FS::Path pcdir = prefix/"lib/pkgconfig";
 133                         if(const char *pcp = getenv("PKG_CONFIG_PATH"))
 134                         {
 135                                 vector<string> path = split(pcp, ':');
 136                                 bool found = false;
 137                                 for(vector<string>::const_iterator i=path.begin(); (!found && i!=path.end()); ++i)
 138                                         found = (*i==pcdir.str());
 139                                 if(!found)
 140                                 {
 141                                         path.push_back(pcdir.str());
 142                                         setenv("PKG_CONFIG_PATH", join(path.begin(), path.end(), ":").c_str(), true);
 143                                 }
 144                         }
 145                         else
 146                                 setenv("PKG_CONFIG_PATH", pcdir.str().c_str(), true);
 147                 }
 148         }
 149
 150         ExternalTask::Arguments argv;
 151         argv.push_back("pkg-config");
 152         if(what=="cflags" || what=="libs")
 153                 argv.push_back("--"+what);
 154         else if(what=="flags")
 155         {
 156                 argv.push_back("--cflags");
 157                 argv.push_back("--libs");
 158         }
 159         else
 160                 argv.push_back("--variable="+what);
 161         argv.push_back(pkg);
 162
 163         builder.get_logger().log("auxcommands", format("Running %s", join(argv.begin(), argv.end())));
 164
 165         return ExternalTask::run_and_capture_output(argv);
 166 }
 167
 168 FS::Path PackageManager::get_package_location(const string &name)
 169 {
 170         builder.get_logger().log("packagemgr", format("Looking for source package %s", name));
 171
 172         try
 173         {
 174                 // Try to get source directory with pkgconfig
 175                 string srcdir = strip(run_pkgconfig(name, "source"));
 176                 if(!srcdir.empty() && FS::exists(FS::Path(srcdir)/"Build"))
 177                         return srcdir;
 178         }
 179         catch(...)
 180         { }
 181
 182         if(pkg_dirs.empty())
 183         {
 184                 for(SearchPath::const_iterator i=pkg_path.begin(); i!=pkg_path.end(); ++i)
 185                 {
 186                         builder.get_logger().log("files", format("Traversing %s", *i));
 187                         list<string> files = list_files(*i);
 188                         unsigned count = 0;
 189                         for(list<string>::const_iterator j=files.begin(); j!=files.end(); ++j)
 190                         {
 191                                 FS::Path full = *i / *j;
 192                                 if(FS::exists(full/"Build"))
 193                                 {
 194                                         pkg_dirs.push_back(full);
 195                                         ++count;
 196                                 }
 197                         }
 198
 199                         builder.get_logger().log("packagemgr", format("%d source packages found in %s", count, *i));
 200                 }
 201
 202                 builder.get_logger().log("packagemgr", format("%d source packages found", pkg_dirs.size()));
 203         }
 204
 205         bool msp = !name.compare(0, 3, "msp");
 206         for(SearchPath::const_iterator i=pkg_dirs.begin(); i!=pkg_dirs.end(); ++i)
 207         {
 208                 string base = FS::basename(*i);
 209                 unsigned dash = base.rfind('-');
 210
 211                 if(!base.compare(0, dash, name))
 212                         return *i;
 213                 else if(msp && !base.compare(0, dash, name, 3, string::npos))
 214                         return *i;
 215         }
 216
 217         return FS::Path();
 218 }
 219
 220 FS::Path PackageManager::get_binary_package_file(const string &name)
 221 {
 222         builder.get_logger().log("packagemgr", format("Looking for binary package %s", name));
 223
 224         if(binpkg_files.empty())
 225         {
 226                 for(list<FS::Path>::const_iterator i=binpkg_path.begin(); i!=binpkg_path.end(); ++i)
 227                 {
 228                         builder.get_logger().log("files", format("Traversing %s", *i));
 229                         list<string> files = list_filtered(*i, "\\.bpk$");
 230                         for(list<string>::const_iterator j=files.begin(); j!=files.end(); ++j)
 231                                 binpkg_files.push_back(*i / *j);
 232                         builder.get_logger().log("packagemgr", format("%d binary packages found in %s", files.size(), *i));
 233                 }
 234
 235                 builder.get_logger().log("packagemgr", format("%d binary packages found", binpkg_files.size()));
 236         }
 237
 238         for(SearchPath::const_iterator i=binpkg_files.begin(); i!=binpkg_files.end(); ++i)
 239         {
 240                 string base = FS::basepart(FS::basename(*i));
 241                 if(base==name)
 242                         return *i;
 243         }
 244
 245         return FS::Path();
 246 }
 247
 248 void PackageManager::save_all_caches() const
 249 {
 250         for(PackageMap::const_iterator i=packages.begin(); i!=packages.end(); ++i)
 251                 i->second->save_caches();
 252 }