1 files changed, 40 insertions, 0 deletions
diff --git a/src/luarocks/fs.lua b/src/luarocks/fs.lua
new file mode 100644
index 0000000..467b194
--- /dev/null
+++ b/src/luarocks/fs.lua
@@ -0,0 +1,40 @@
+
+--- Proxy module for filesystem and platform abstractions.
+-- All code using "fs" code should require "luarocks.fs",
+-- and not the various platform-specific implementations.
+-- However, see the documentation of the implementation
+-- for the API reference.
+
+local pairs = pairs
+
+module("luarocks.fs", package.seeall)
+
+local cfg = require("luarocks.cfg")
+
+local function load_fns(fs_table)
+   for name, fn in pairs(fs_table) do
+      if not _M[name] then
+         _M[name] = fn
+      end
+   end
+end
+
+-- Load platform-specific functions
+local loaded_platform = nil
+for _, platform in ipairs(cfg.platforms) do
+   local ok, fs_plat = pcall(require, "luarocks.fs."..platform)
+   if ok and fs_plat then
+      loaded_platform = platform
+      load_fns(fs_plat)
+      break
+   end
+end
+
+-- Load platform-independent pure-Lua functionality
+local fs_lua = require("luarocks.fs.lua")
+load_fns(fs_lua)
+
+-- Load platform-specific fallbacks for missing Lua modules
+local ok, fs_plat_tools = pcall(require, "luarocks.fs."..loaded_platform..".tools")
+if ok and fs_plat_tools then load_fns(fs_plat_tools) end
+