X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fluci.git;a=blobdiff_plain;f=libs%2Fluci-lib-nixio%2Froot%2Fusr%2Flib%2Flua%2Fnixio%2Ffs.lua;fp=libs%2Fluci-lib-nixio%2Froot%2Fusr%2Flib%2Flua%2Fnixio%2Ffs.lua;h=8883835f303796ce317bf1a0f6bd367d84a1ba94;hp=0000000000000000000000000000000000000000;hb=1bb4822dca6113f73e3bc89e2acf15935e6f8e92;hpb=9edd0e46c3f880727738ce8ca6ff1c8b85f99ef4

diff --git a/libs/luci-lib-nixio/root/usr/lib/lua/nixio/fs.lua b/libs/luci-lib-nixio/root/usr/lib/lua/nixio/fs.lua
new file mode 100644
index 000000000..8883835f3
--- /dev/null
+++ b/libs/luci-lib-nixio/root/usr/lib/lua/nixio/fs.lua
@@ -0,0 +1,175 @@
+--[[
+nixio - Linux I/O library for lua
+
+Copyright 2009 Steven Barth <steven@midlink.org>
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+$Id$
+]]--
+
+local table = require "table"
+local nixio = require "nixio"
+local type, ipairs, setmetatable = type, ipairs, setmetatable
+require "nixio.util"
+
+
+module ("nixio.fs", function(m) setmetatable(m, {__index = nixio.fs}) end)
+
+
+function readfile(path, limit)
+	local fd, code, msg = nixio.open(path, "r")
+	local data
+	if not fd then
+		return nil, code, msg
+	end
+	
+	data, code, msg = fd:readall(limit)
+	
+	fd:close()
+	return data, code, msg
+end
+
+
+function writefile(path, data)
+	local fd, code, msg, stat = nixio.open(path, "w")
+	if not fd then
+		return nil, code, msg
+	end
+	
+	stat, code, msg = fd:writeall(data)
+	
+	fd:close()
+	return stat, code, msg
+end
+
+function datacopy(src, dest, size)
+	local fdin, code, msg = nixio.open(src, "r")
+	if not fdin then
+		return nil, code, msg
+	end
+	
+	local fdout, code, msg = nixio.open(dest, "w")
+	if not fdout then
+		return nil, code, msg
+	end	
+	
+	local stat, code, msg, sent = fdin:copy(fdout, size)
+	fdin:close()
+	fdout:close()
+
+	return stat, code, msg, sent
+end
+
+function copy(src, dest)
+	local stat, code, msg, res = nixio.fs.lstat(src)
+	if not stat then
+		return nil, code, msg
+	end
+	
+	if stat.type == "dir" then
+		if nixio.fs.stat(dest, type) ~= "dir" then
+			res, code, msg = nixio.fs.mkdir(dest)
+		else
+			stat = true
+		end
+	elseif stat.type == "lnk" then
+		res, code, msg = nixio.fs.symlink(nixio.fs.readlink(src), dest)
+	elseif stat.type == "reg" then
+		res, code, msg = datacopy(src, dest)
+	end
+	
+	if not res then
+		return nil, code, msg
+	end
+	
+	nixio.fs.utimes(dest, stat.atime, stat.mtime)
+	
+	if nixio.fs.lchown then
+		nixio.fs.lchown(dest, stat.uid, stat.gid)
+	end
+	
+	if stat.type ~= "lnk" then
+		nixio.fs.chmod(dest, stat.modedec)
+	end
+	
+	return true
+end
+
+function move(src, dest)
+	local stat, code, msg = nixio.fs.rename(src, dest)
+	if not stat and code == nixio.const.EXDEV then
+		stat, code, msg = copy(src, dest)
+		if stat then
+			stat, code, msg = nixio.fs.unlink(src)
+		end
+	end
+	return stat, code, msg
+end
+
+function mkdirr(dest, mode)
+	if nixio.fs.stat(dest, "type") == "dir" then
+		return true
+	else
+		local stat, code, msg = nixio.fs.mkdir(dest, mode)
+		if not stat and code == nixio.const.ENOENT then
+			stat, code, msg = mkdirr(nixio.fs.dirname(dest), mode)
+			if stat then
+				stat, code, msg = nixio.fs.mkdir(dest, mode)
+			end
+		end
+		return stat, code, msg
+	end
+end
+
+local function _recurse(cb, src, dest)
+	local type = nixio.fs.lstat(src, "type")
+	if type ~= "dir" then
+		return cb(src, dest)
+	else
+		local stat, se, code, msg, s, c, m = true, nixio.const.sep
+		if dest then
+			s, c, m = cb(src, dest)
+			stat, code, msg = stat and s, c or code, m or msg
+		end
+
+		for e in nixio.fs.dir(src) do
+			if dest then
+				s, c, m = _recurse(cb, src .. se .. e, dest .. se .. e)
+			else
+				s, c, m = _recurse(cb, src .. se .. e)
+			end
+			stat, code, msg = stat and s, c or code, m or msg
+		end
+
+		if not dest then							-- Postfix
+			s, c, m = cb(src)
+			stat, code, msg = stat and s, c or code, m or msg
+		end
+
+		return stat, code, msg
+	end
+end
+
+function copyr(src, dest)
+	return _recurse(copy, src, dest)
+end
+
+function mover(src, dest)
+	local stat, code, msg = nixio.fs.rename(src, dest)
+	if not stat and code == nixio.const.EXDEV then
+		stat, code, msg = _recurse(copy, src, dest)
+		if stat then
+			stat, code, msg = _recurse(nixio.fs.remove, src)
+		end
+	end
+	return stat, code, msg
+end
+
+function remover(src)
+	return _recurse(nixio.fs.remove, src)
+end
\ No newline at end of file