source/virtualfilesystem.cpp

   1 #include <cstdlib>
   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         TargetMap::const_iterator 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(TargetMap::value_type(path.str(), t));
  34         nonexistent.erase(path);
  35         builder.get_logger().log("vfs", format("Path %s registered to %s", path, t->get_name()));
  36 }
  37
  38 FileTarget *VirtualFileSystem::find_header(const string &name, const 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         list<FS::Path> combined_path(path.begin(), path.end());
  46         if(use_syspath)
  47         {
  48                 const Tool::SearchPath &syspath = tool->get_system_path();
  49                 combined_path.insert(combined_path.end(), syspath.begin(), syspath.end());
  50         }
  51
  52         for(list<FS::Path>::const_iterator i=combined_path.begin(); i!=combined_path.end(); ++i)
  53         {
  54                 FS::Path filename = *i/name;
  55                 if(FileTarget *tgt = get_target(filename))
  56                 {
  57                         builder.get_logger().log("vfs", format("Header %s found in %s as existing %s", name, i->str(), tgt->get_type()));
  58                         return tgt;
  59                 }
  60                 else if(file_exists(filename))
  61                 {
  62                         builder.get_logger().log("vfs", format("Header %s found in %s", name, i->str()));
  63                         return dynamic_cast<FileTarget *>(tool->create_source(filename));
  64                 }
  65
  66                 builder.get_logger().log("vfs", format("Header %s not found in %s", name, i->str()));
  67         }
  68
  69         return 0;
  70 }
  71
  72 FileTarget *VirtualFileSystem::find_library(const string &lib, const SearchPath &path, BuildInfo::LibraryMode mode, bool use_syspath)
  73 {
  74         list<FS::Path> combined_path(path.begin(), path.end());
  75         if(use_syspath)
  76         {
  77                 const Tool &linker = builder.get_toolchain().get_tool("LINK");
  78                 const Tool::SearchPath &syspath = linker.get_system_path();
  79                 combined_path.insert(combined_path.end(), syspath.begin(), syspath.end());
  80         }
  81
  82         const Architecture &arch = builder.get_current_arch();
  83
  84         list<string> shared_names;
  85         if(mode!=BuildInfo::FORCE_STATIC)
  86                 shared_names = Pattern::apply_list(arch.get_shared_library_patterns(), lib);
  87
  88         list<string> static_names;
  89         if(mode!=BuildInfo::FORCE_DYNAMIC)
  90                 static_names = Pattern::apply_list(arch.get_static_library_patterns(), lib);
  91
  92         for(list<FS::Path>::const_iterator i=combined_path.begin(); i!=combined_path.end(); ++i)
  93         {
  94                 const list<string> *cur_names = (mode>=BuildInfo::DYNAMIC ? &shared_names : &static_names);
  95                 for(list<string>::const_iterator j=cur_names->begin(); j!=cur_names->end(); )
  96                 {
  97                         FS::Path filename = *i / *j;
  98                         if(FileTarget *tgt = get_target(filename))
  99                         {
 100                                 builder.get_logger().log("vfs", format("Library %s (%s) found in %s as existing %s", lib, *j, i->str(), tgt->get_type()));
 101                                 return tgt;
 102                         }
 103                         else if(file_exists(filename))
 104                         {
 105                                 builder.get_logger().log("vfs", format("Library %s (%s) found in %s", lib, *j, i->str()));
 106                                 if(cur_names==&shared_names)
 107                                 {
 108                                         /* XXX Hack: create ImportLibraries here; they should be handled
 109                                         separately, but I need a more generic way of handling all these
 110                                         filename patterns */
 111                                         if(FS::extpart(*j)==".a")
 112                                                 return new ImportLibrary(builder, filename);
 113                                         return new SharedLibrary(builder, filename);
 114                                 }
 115                                 else
 116                                         return new StaticLibrary(builder, filename);
 117                         }
 118
 119                         if(++j==cur_names->end())
 120                         {
 121                                 if(mode==BuildInfo::DYNAMIC && cur_names==&shared_names)
 122                                         cur_names = &static_names;
 123                                 else if(mode==BuildInfo::STATIC && cur_names==&static_names)
 124                                         cur_names = &shared_names;
 125                                 else
 126                                         break;
 127                                 j = cur_names->begin();
 128                         }
 129                 }
 130
 131                 builder.get_logger().log("vfs", format("Library %s not found in %s", lib, i->str()));
 132         }
 133
 134         return 0;
 135 }
 136
 137 FileTarget *VirtualFileSystem::find_binary(const string &name)
 138 {
 139         SearchPath path;
 140         if(FS::Path(name).is_absolute())
 141                 path.push_back("/");
 142         else if(const char *env_path = getenv("PATH"))
 143         {
 144                 vector<string> parts = split(env_path, ':');
 145                 for(vector<string>::const_iterator i=parts.begin(); i!=parts.end(); ++i)
 146                         path.push_back(*i);
 147         }
 148         else
 149         {
 150                 path.push_back("/bin");
 151                 path.push_back("/usr/bin");
 152         }
 153
 154         for(SearchPath::const_iterator i=path.begin(); i!=path.end(); ++i)
 155         {
 156                 FS::Path filename = *i/name;
 157                 if(FileTarget *tgt = get_target(filename))
 158                 {
 159                         builder.get_logger().log("vfs", format("Binary %s found in %s as existing %s", name, *i, tgt->get_type()));
 160                         return tgt;
 161                 }
 162                 else if(file_exists(filename))
 163                 {
 164                         builder.get_logger().log("vfs", format("Binary %s found in %s", name, *i));
 165                         return new Executable(builder, filename);
 166                 }
 167
 168                 builder.get_logger().log("vfs", format("Binary %s not found in %s", name, *i));
 169         }
 170
 171         return 0;
 172 }
 173
 174 bool VirtualFileSystem::file_exists(const FS::Path &filename)
 175 {
 176         if(nonexistent.count(filename))
 177                 return false;
 178         if(FS::is_reg(filename))
 179                 return true;
 180         nonexistent.insert(filename);
 181         return false;
 182 }