source/packagemanager.cpp

   1 #include <cstdlib>
   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/io/print.h>
   7 #include <msp/strings/utils.h>
   8 #include <msp/time/timedelta.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 { }
  22
  23 PackageManager::~PackageManager()
  24 {
  25         for(const auto &kvp: packages)
  26                 delete kvp.second;
  27 }
  28
  29 void PackageManager::append_package_path(const FS::Path &p)
  30 {
  31         pkg_path.push_back(p);
  32 }
  33
  34 void PackageManager::append_binary_package_path(const FS::Path &p)
  35 {
  36         binpkg_path.push_back(p);
  37 }
  38
  39 void PackageManager::set_no_externals(bool x)
  40 {
  41         no_externals = x;
  42 }
  43
  44 void PackageManager::add_package(Package *pkg)
  45 {
  46         auto i = packages.find(pkg->get_name());
  47         if(i!=packages.end())
  48         {
  49                 if(i->second!=pkg)
  50                         throw invalid_argument("Package name conflict");
  51                 else
  52                         throw logic_error("Package is already managed");
  53         }
  54
  55         if(packages.empty())
  56                 main_pkg = pkg;
  57
  58         packages.insert({ pkg->get_name(), pkg });
  59 }
  60
  61 Package *PackageManager::get_package(const string &name) const
  62 {
  63         auto i = packages.find(name);
  64         if(i!=packages.end())
  65                 return i->second;
  66
  67         return 0;
  68 }
  69
  70 Package &PackageManager::get_main_package() const
  71 {
  72         if(!main_pkg)
  73                 throw logic_error("No packages");
  74         return *main_pkg;
  75 }
  76
  77 Package *PackageManager::find_package(const string &name)
  78 {
  79         if(not_found.count(name))
  80                 return 0;
  81
  82         if(Package *pkg = get_package(name))
  83                 return pkg;
  84
  85         if(!no_externals)
  86         {
  87                 FS::Path path = get_package_location(name);
  88                 if(!path.empty())
  89                 {
  90                         builder.load_build_file(path/"Build");
  91                         auto i = packages.find(name);
  92                         if(i!=packages.end())
  93                                 return i->second;
  94                 }
  95         }
  96
  97         FS::Path path = get_binary_package_file(name);
  98         if(!path.empty())
  99         {
 100                 builder.load_build_file(path);
 101                 if(Package *pkg = get_package(name))
 102                         return pkg;
 103         }
 104
 105         try
 106         {
 107                 // Package source not found - create a binary package
 108                 string flags_str = run_pkgconfig(name, "flags");
 109                 BinaryPackage::Flags flags = split(flags_str);
 110                 flags_str = run_pkgconfig(name, "staticflags");
 111                 BinaryPackage::Flags static_flags = split(flags_str);
 112                 Package *pkg = BinaryPackage::from_flags(builder, name, flags, static_flags);
 113                 packages.insert({ name, pkg });
 114                 return pkg;
 115         }
 116         catch(...)
 117         {
 118                 not_found.insert(name);
 119                 return 0;
 120         }
 121 }
 122
 123 string PackageManager::run_pkgconfig(const string &pkg, const string &what)
 124 {
 125 #ifndef _WIN32
 126         if(!env_set)
 127         {
 128                 const FS::Path &prefix = builder.get_prefix();
 129                 if(prefix.str()!="/usr")
 130                 {
 131                         FS::Path pcdir = prefix/"lib/pkgconfig";
 132                         if(const char *pcp = getenv("PKG_CONFIG_PATH"))
 133                         {
 134                                 vector<string> path = split(pcp, ':');
 135                                 if(!any_equals(path, pcdir.str()))
 136                                 {
 137                                         path.push_back(pcdir.str());
 138                                         setenv("PKG_CONFIG_PATH", join(path.begin(), path.end(), ":").c_str(), true);
 139                                 }
 140                         }
 141                         else
 142                                 setenv("PKG_CONFIG_PATH", pcdir.str().c_str(), true);
 143                 }
 144         }
 145
 146         ExternalTask::Arguments argv;
 147         argv.push_back("pkg-config");
 148         if(what=="cflags" || what=="libs")
 149                 argv.push_back("--"+what);
 150         else if(what=="flags" || what=="staticflags")
 151         {
 152                 argv.push_back("--cflags");
 153                 argv.push_back("--libs");
 154                 if(what=="staticflags")
 155                         argv.push_back("--static");
 156         }
 157         else
 158                 argv.push_back("--variable="+what);
 159         argv.push_back(pkg);
 160
 161         builder.get_logger().log("auxcommands", "Running %s", join(argv.begin(), argv.end()));
 162
 163         return ExternalTask::run_and_capture_output(argv);
 164 #else
 165         (void)pkg;
 166         (void)what;
 167         return string();
 168 #endif
 169 }
 170
 171 FS::Path PackageManager::get_package_location(const string &name)
 172 {
 173         builder.get_logger().log("packagemgr", "Looking for source package %s", name);
 174
 175         try
 176         {
 177                 // Try to get source directory with pkgconfig
 178                 string srcdir = strip(run_pkgconfig(name, "source"));
 179                 if(!srcdir.empty() && FS::exists(FS::Path(srcdir)/"Build"))
 180                         return srcdir;
 181         }
 182         catch(...)
 183         { }
 184
 185         if(pkg_dirs.empty())
 186         {
 187                 for(const FS::Path &p: pkg_path)
 188                 {
 189                         builder.get_logger().log("files", "Traversing %s", p);
 190                         unsigned count = 0;
 191                         for(const string &f: list_files(p))
 192                         {
 193                                 FS::Path full = p/f;
 194                                 if(FS::exists(full/"Build"))
 195                                 {
 196                                         pkg_dirs.push_back(full);
 197                                         ++count;
 198                                 }
 199                         }
 200
 201                         builder.get_logger().log("packagemgr", "%d source packages found in %s", count, p);
 202                 }
 203
 204                 builder.get_logger().log("packagemgr", "%d source packages found", pkg_dirs.size());
 205         }
 206
 207         bool msp = !name.compare(0, 3, "msp");
 208         for(const FS::Path &p: pkg_dirs)
 209         {
 210                 string base = FS::basename(p);
 211                 unsigned dash = base.rfind('-');
 212
 213                 if(!base.compare(0, dash, name))
 214                         return p;
 215                 else if(msp && !base.compare(0, dash, name, 3, string::npos))
 216                         return p;
 217         }
 218
 219         return FS::Path();
 220 }
 221
 222 FS::Path PackageManager::get_binary_package_file(const string &name)
 223 {
 224         builder.get_logger().log("packagemgr", "Looking for binary package %s", name);
 225
 226         if(binpkg_files.empty())
 227         {
 228                 for(const FS::Path &p: binpkg_path)
 229                 {
 230                         builder.get_logger().log("files", "Traversing %s", p);
 231                         vector<string> files = list_filtered(p, "\\.bpk$");
 232                         for(const string &f: files)
 233                                 binpkg_files.push_back(p/f);
 234                         builder.get_logger().log("packagemgr", "%d binary packages found in %s", files.size(), p);
 235                 }
 236
 237                 builder.get_logger().log("packagemgr", "%d binary packages found", binpkg_files.size());
 238         }
 239
 240         auto i = find_if(binpkg_files, [&name](const FS::Path &p){ return FS::basepart(FS::basename(p))==name; });
 241         if(i!=binpkg_files.end())
 242                 return *i;
 243
 244         return FS::Path();
 245 }
 246
 247 void PackageManager::save_all_caches() const
 248 {
 249         for(const auto &kvp: packages)
 250                 kvp.second->save_caches();
 251 }