source/virtualfilesystem.cpp

   1 #include <msp/core/environ.h>
   2 #include <msp/fs/stat.h>
   3 #include <msp/fs/utils.h>
   4 #include <msp/io/print.h>
   5 #include <msp/strings/utils.h>
   6 #include "builder.h"
   7 #include "csourcefile.h"
   8 #include "executable.h"
   9 #include "importlibrary.h"
  10 #include "sharedlibrary.h"
  11 #include "staticlibrary.h"
  12 #include "tool.h"
  13 #include "virtualfilesystem.h"
  14
  15 using namespace std;
  16 using namespace Msp;
  17
  18 VirtualFileSystem::VirtualFileSystem(Builder &b):
  19         builder(b)
  20 {
  21 }
  22
  23 FileTarget *VirtualFileSystem::get_target(const FS::Path &p) const
  24 {
  25         auto i = targets.find(p.str());
  26         if(i!=targets.end())
  27                 return static_cast<FileTarget *>(i->second);
  28         return 0;
  29 }
  30
  31 void VirtualFileSystem::register_path(const FS::Path &path, FileTarget *t)
  32 {
  33         targets.insert({ path, t });
  34         nonexistent.erase(path);
  35         builder.get_logger().log("vfs", "Path %s registered to %s", path, t->get_name());
  36 }
  37
  38 FileTarget *VirtualFileSystem::find_header(const string &name, Tool *tool, const SearchPath &path, bool use_syspath)
  39 {
  40         if(!tool)
  41                 tool = builder.get_toolchain().get_tool_for_suffix(FS::extpart(FS::basename(name)), true);
  42         if(!tool)
  43                 return 0;
  44
  45         tool->prepare();
  46
  47         SearchPath combined_path = path;
  48         if(use_syspath)
  49         {
  50                 const SearchPath &syspath = tool->get_system_path();
  51                 combined_path.insert(combined_path.end(), syspath.begin(), syspath.end());
  52         }
  53
  54         for(const FS::Path &p: combined_path)
  55         {
  56                 FS::Path filename = p/name;
  57                 if(FileTarget *tgt = get_target(filename))
  58                 {
  59                         builder.get_logger().log("vfs", "Header %s found in %s as existing %s", name, p.str(), tgt->get_type());
  60                         return tgt;
  61                 }
  62                 else if(file_exists(filename))
  63                 {
  64                         builder.get_logger().log("vfs", "Header %s found in %s", name, p.str());
  65                         return dynamic_cast<FileTarget *>(tool->create_source(filename));
  66                 }
  67
  68                 builder.get_logger().log("vfs", "Header %s not found in %s", name, p.str());
  69         }
  70
  71         return 0;
  72 }
  73
  74 FileTarget *VirtualFileSystem::find_library(const string &lib, const SearchPath &path, BuildInfo::LibraryMode mode, bool use_syspath)
  75 {
  76         SearchPath combined_path = path;
  77         if(use_syspath)
  78         {
  79                 Tool &linker = builder.get_toolchain().get_tool("LINK");
  80                 linker.prepare();
  81                 const SearchPath &syspath = linker.get_system_path();
  82                 combined_path.insert(combined_path.end(), syspath.begin(), syspath.end());
  83         }
  84
  85         const Architecture &arch = builder.get_current_arch();
  86
  87         vector<string> shared_names;
  88         bool use_import_lib = false;
  89         if(mode!=BuildInfo::FORCE_STATIC)
  90         {
  91                 shared_names = Pattern::apply_list(arch.get_patterns<ImportLibrary>(), lib);
  92                 if(!(use_import_lib = !shared_names.empty()))
  93                         shared_names = Pattern::apply_list(arch.get_patterns<SharedLibrary>(), lib);
  94         }
  95
  96         vector<string> static_names;
  97         if(mode!=BuildInfo::FORCE_DYNAMIC)
  98                 static_names = Pattern::apply_list(arch.get_patterns<StaticLibrary>(), lib);
  99
 100         for(const FS::Path &p: combined_path)
 101         {
 102                 const vector<string> *cur_names = (mode>=BuildInfo::DYNAMIC ? &shared_names : &static_names);
 103                 for(auto j=cur_names->begin(); j!=cur_names->end(); )
 104                 {
 105                         FS::Path filename = p / *j;
 106                         if(FileTarget *tgt = get_target(filename))
 107                         {
 108                                 builder.get_logger().log("vfs", "Library %s (%s) found in %s as existing %s", lib, *j, p.str(), tgt->get_type());
 109                                 return tgt;
 110                         }
 111                         else if(file_exists(filename))
 112                         {
 113                                 builder.get_logger().log("vfs", "Library %s (%s) found in %s", lib, *j, p.str());
 114                                 if(cur_names==&shared_names)
 115                                 {
 116                                         if(use_import_lib)
 117                                                 return new ImportLibrary(builder, filename);
 118                                         return new SharedLibrary(builder, filename);
 119                                 }
 120                                 else
 121                                         return new StaticLibrary(builder, filename);
 122                         }
 123
 124                         if(++j==cur_names->end())
 125                         {
 126                                 if(mode==BuildInfo::DYNAMIC && cur_names==&shared_names)
 127                                         cur_names = &static_names;
 128                                 else if(mode==BuildInfo::STATIC && cur_names==&static_names)
 129                                         cur_names = &shared_names;
 130                                 else
 131                                         break;
 132                                 j = cur_names->begin();
 133                         }
 134                 }
 135
 136                 builder.get_logger().log("vfs", "Library %s not found in %s", lib, p.str());
 137         }
 138
 139         return 0;
 140 }
 141
 142 FileTarget *VirtualFileSystem::find_binary(const string &name)
 143 {
 144         SearchPath path;
 145         if(FS::Path(name).is_absolute())
 146                 path.push_back("/");
 147         else
 148         {
 149                 if(sys_bin_path.empty())
 150                 {
 151                         string env_path = Msp::getenv("PATH");
 152                         if(!env_path.empty())
 153                         {
 154                                 for(const string &p: split(env_path, ':'))
 155                                         sys_bin_path.push_back(p);
 156                         }
 157                         else
 158                         {
 159                                 sys_bin_path.push_back("/bin");
 160                                 sys_bin_path.push_back("/usr/bin");
 161                         }
 162                 }
 163                 path = sys_bin_path;
 164         }
 165
 166         for(const FS::Path &p: path)
 167         {
 168                 FS::Path filename = p/name;
 169                 if(FileTarget *tgt = get_target(filename))
 170                 {
 171                         builder.get_logger().log("vfs", "Binary %s found in %s as existing %s", name, p, tgt->get_type());
 172                         return tgt;
 173                 }
 174                 else if(file_exists(filename))
 175                 {
 176                         builder.get_logger().log("vfs", "Binary %s found in %s", name, p);
 177                         return new Executable(builder, filename);
 178                 }
 179
 180                 builder.get_logger().log("vfs", "Binary %s not found in %s", name, p);
 181         }
 182
 183         return 0;
 184 }
 185
 186 bool VirtualFileSystem::file_exists(const FS::Path &filename)
 187 {
 188         if(nonexistent.count(filename))
 189                 return false;
 190         if(FS::is_reg(filename))
 191                 return true;
 192         nonexistent.insert(filename);
 193         return false;
 194 }