X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fluci.git;a=blobdiff_plain;f=libs%2Fcore%2Fluasrc%2Ffs.lua;h=a81ff675d41c1b3abd22da6ba4108149288173fb;hp=0fc7193890126ff5d839f5905ddd7e9212c89d2e;hb=33fba71fc94b84c33b1e600da9b195eac49b2e31;hpb=f10b0e58e2ca9a3c3760965e83a1bcac0954407a

diff --git a/libs/core/luasrc/fs.lua b/libs/core/luasrc/fs.lua
index 0fc719389..a81ff675d 100644
--- a/libs/core/luasrc/fs.lua
+++ b/libs/core/luasrc/fs.lua
@@ -24,10 +24,16 @@ limitations under the License.
 
 ]]--
 
---- LuCI filesystem library.
-module("luci.fs", package.seeall)
+local io    = require "io"
+local os    = require "os"
+local ltn12 = require "luci.ltn12"
+local fs	= require "nixio.fs"
+local nutil = require "nixio.util"
+
+local type  = type
 
-require("posix")
+--- LuCI filesystem library.
+module "luci.fs"
 
 --- Test for file access permission on given path.
 -- @class		function
@@ -36,7 +42,7 @@ require("posix")
 -- @return		Number containing the return code, 0 on sucess or nil on error
 -- @return		String containing the error description (if any)
 -- @return		Number containing the os specific errno (if any)
-access = posix.access
+access = fs.access
 
 --- Evaluate given shell glob pattern and return a table containing all matching
 -- file and directory entries.
@@ -46,48 +52,53 @@ access = posix.access
 -- @return			Table containing file and directory entries or nil if no matches
 -- @return			String containing the error description (if no matches)
 -- @return			Number containing the os specific errno (if no matches)
-glob = posix.glob
+function glob(...)
+	local iter, code, msg = fs.glob(...)
+	if iter then
+		return nutil.consume(iter)
+	else
+		return nil, code, msg
+	end
+end
 
 --- Checks wheather the given path exists and points to a regular file.
--- @param filename	String containing the path of the file to read
+-- @param filename	String containing the path of the file to test
 -- @return			Boolean indicating wheather given path points to regular file
 function isfile(filename)
-	return posix.stat(filename, "type") == "regular"
+	return fs.stat(filename, "type") == "reg"
+end
+
+--- Checks wheather the given path exists and points to a directory.
+-- @param dirname	String containing the path of the directory to test
+-- @return			Boolean indicating wheather given path points to directory
+function isdirectory(dirname)
+	return fs.stat(dirname, "type") == "dir"
 end
 
 --- Read the whole content of the given file into memory.
 -- @param filename	String containing the path of the file to read
 -- @return			String containing the file contents or nil on error
 -- @return			String containing the error message on error
-function readfile(filename)
-	local fp, err = io.open(filename)
-
-	if fp == nil then
-		return nil, err
-	end
-
-	local data = fp:read("*a")
-	fp:close()
-	return data
-end
+readfile = fs.readfile
 
 --- Write the contents of given string to given file.
 -- @param filename	String containing the path of the file to read
 -- @param data		String containing the data to write
 -- @return			Boolean containing true on success or nil on error
 -- @return			String containing the error message on error
-function writefile(filename, data)
-	local fp, err = io.open(filename, "w")
+writefile = fs.writefile
 
-	if fp == nil then
-		return nil, err
-	end
-
-	fp:write(data)
-	fp:close()
+--- Copies a file.
+-- @param source	Source file
+-- @param dest		Destination
+-- @return			Boolean containing true on success or nil on error
+copy = fs.datacopy
 
-	return true
-end
+--- Renames a file.
+-- @param source	Source file
+-- @param dest		Destination
+-- @return			Boolean containing true on success or nil on error
+rename = fs.move
 
 --- Get the last modification time of given file path in Unix epoch format.
 -- @param path	String containing the path of the file or directory to read
@@ -95,7 +106,18 @@ end
 -- @return		String containing the error description (if any)
 -- @return		Number containing the os specific errno (if any)
 function mtime(path)
-	return posix.stat(path, "mtime")
+	return fs.stat(path, "mtime")
+end
+
+--- Set the last modification time  of given file path in Unix epoch format.
+-- @param path	String containing the path of the file or directory to read
+-- @param mtime	Last modification timestamp
+-- @param atime Last accessed timestamp
+-- @return		0 in case of success nil on error
+-- @return		String containing the error description (if any)
+-- @return		Number containing the os specific errno (if any)
+function utime(path, mtime, atime)
+	return fs.utimes(path, atime, mtime)
 end
 
 --- Return the last element - usually the filename - from the given path with
@@ -105,7 +127,7 @@ end
 -- @param path	String containing the path to strip
 -- @return		String containing the base name of given path
 -- @see			dirname
-basename = posix.basename
+basename = fs.basename
 
 --- Return the directory component of the given path with the last element
 -- stripped of.
@@ -114,7 +136,7 @@ basename = posix.basename
 -- @param path	String containing the path to strip
 -- @return		String containing the directory component of given path
 -- @see			basename
-dirname = posix.dirname
+dirname = fs.dirname
 
 --- Return a table containing all entries of the specified directory.
 -- @class		function
@@ -123,7 +145,17 @@ dirname = posix.dirname
 -- @return		Table containing file and directory entries or nil on error
 -- @return		String containing the error description on error
 -- @return		Number containing the os specific errno on error
-dir = posix.dir
+function dir(...)
+	local iter, code, msg = fs.dir(...)
+	if iter then
+		local t = nutil.consume(iter)
+		t[#t+1] = "."
+		t[#t+1] = ".."
+		return t
+	else
+		return nil, code, msg
+	end
+end
 
 --- Create a new directory, recursively on demand.
 -- @param path		String with the name or path of the directory to create
@@ -132,36 +164,7 @@ dir = posix.dir
 -- @return			String containing the error description on error
 -- @return			Number containing the os specific errno on error
 function mkdir(path, recursive)
-	if recursive then
-		local base = "."
-
-		if path:sub(1,1) == "/" then
-			base = ""
-			path = path:gsub("^/+","")
-		end
-
-		for elem in path:gmatch("([^/]+)/*") do
-			base = base .. "/" .. elem
-
-			local stat = posix.stat( base )
-
-			if not stat then
-				local stat, errmsg, errno = posix.mkdir( base )
-
-				if type(stat) ~= "number" or stat ~= 0 then
-					return stat, errmsg, errno
-				end
-			else
-				if stat.type ~= "directory" then
-					return nil, base .. ": File exists", 17
-				end
-			end
-		end
-
-		return 0
-	else
-		return posix.mkdir( path )
-	end
+	return recursive and fs.mkdirr(path) or fs.mkdir(path)
 end
 
 --- Remove the given empty directory.
@@ -171,8 +174,17 @@ end
 -- @return		Number with the return code, 0 on sucess or nil on error
 -- @return		String containing the error description on error
 -- @return		Number containing the os specific errno on error
-rmdir = posix.rmdir
-
+rmdir = fs.rmdir
+
+local stat_tr = {
+	reg = "regular",
+	dir = "directory",
+	lnk = "link",
+	chr = "character device",
+	blk = "block device",
+	fifo = "fifo",
+	sock = "socket"
+}
 --- Get information about given file or directory.
 -- @class		function
 -- @name		stat
@@ -180,7 +192,14 @@ rmdir = posix.rmdir
 -- @return		Table containing file or directory properties or nil on error
 -- @return		String containing the error description on error
 -- @return		Number containing the os specific errno on error
-stat = posix.stat
+function stat(path, key)
+	local data, code, msg = fs.stat(path)
+	if data then
+		data.mode = data.modestr
+		data.type = stat_tr[data.type] or "?"
+	end
+	return key and data and data[key] or data, code, msg
+end
 
 --- Set permissions on given file or directory.
 -- @class		function
@@ -190,17 +209,21 @@ stat = posix.stat
 -- @return		Number with the return code, 0 on sucess or nil on error
 -- @return		String containing the error description on error
 -- @return		Number containing the os specific errno on error
-chmod = posix.chmod
+chmod = fs.chmod
 
---- Create a hardlink from given file to specified target file path.
--- @class		function
--- @name		link
--- @param path1	String containing the source path of a file to hardlink
--- @param path2	String containing the destination path for the link
--- @return		Number with the return code, 0 on sucess or nil on error
--- @return		String containing the error description on error
--- @return		Number containing the os specific errno on error
-link = posix.link
+--- Create a hard- or symlink from given file (or directory) to specified target
+-- file (or directory) path.
+-- @class			function
+-- @name			link
+-- @param path1		String containing the source path to link
+-- @param path2		String containing the destination path for the link
+-- @param symlink	Boolean indicating wheather to create a symlink (optional)
+-- @return			Number with the return code, 0 on sucess or nil on error
+-- @return			String containing the error description on error
+-- @return			Number containing the os specific errno on error
+function link(src, dest, sym)
+	return sym and fs.symlink(src, dest) or fs.link(src, dest)
+end
 
 --- Remove the given file.
 -- @class		function
@@ -209,4 +232,13 @@ link = posix.link
 -- @return		Number with the return code, 0 on sucess or nil on error
 -- @return		String containing the error description on error
 -- @return		Number containing the os specific errno on error
-unlink = posix.unlink
+unlink = fs.unlink
+
+--- Retrieve target of given symlink.
+-- @class		function
+-- @name		readlink
+-- @param path	String containing the path of the symlink to read
+-- @return		String containing the link target or nil on error
+-- @return		String containing the error description on error
+-- @return		Number containing the os specific errno on error
+readlink = fs.readlink