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|
--!The Automatic Cross-platform Build Tool
--
-- XMake is free software; you can redistribute it and/or modify
-- it under the terms of the GNU Lesser General Public License as published by
-- the Free Software Foundation; either version 2.1 of the License, or
-- (at your option) any later version.
--
-- XMake is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU Lesser General Public License for more details.
--
-- You should have received a copy of the GNU Lesser General Public License
-- along with XMake;
-- If not, see <a href="http://www.gnu.org/licenses/"> http://www.gnu.org/licenses/</a>
--
-- Copyright (C) 2009 - 2015, ruki All rights reserved.
--
-- @author ruki
-- @file os.lua
--
-- define module: os
local os = os or {}
-- load modules
local path = require("base/path")
local utils = require("base/utils")
-- copy file or directory
function os.cp(src, dst)
-- check
assert(src and dst)
-- is file?
if os.isfile(src) then
-- copy file
if not os.cpfile(src, dst) then
return false, string.format("cannot copy file %s to %s!", src, dst)
end
-- is directory?
elseif os.isdir(src) then
-- copy directory
if not os.cpdir(src, dst) then
return false, string.format("cannot copy directory %s to %s!", src, dst)
end
-- not exists?
else
return false, string.format("cannot copy file %s, not found this file!", src)
end
-- ok
return true
end
-- move file or directory
function os.mv(src, dst)
-- check
assert(src and dst)
-- exists file or directory?
if os.exists(src) then
-- move file or directory
if not os.rename(src, dst) then
return false, string.format("cannot move %s to %s!", src, dst)
end
-- not exists?
else
return false, string.format("cannot move %s to %s, not found this file!", src, dst)
end
-- ok
return true
end
-- remove file or directory
function os.rm(path)
-- check
assert(path)
-- is file?
if os.isfile(path) then
-- remove file
if not os.rmfile(path) then
return false, string.format("cannot remove file %s!", path)
end
-- is directory?
elseif os.isdir(path) then
-- remove directory
if not os.rmdir(path) then
return false, string.format("cannot remove directory %s!", path)
end
-- not exists?
else
return false, string.format("cannot remove file %s, not found this file!", path)
end
-- ok
return true
end
-- change to directory
function os.cd(path)
-- check
assert(path)
-- change to the previous directory?
if path == "-" then
-- exists the previous directory?
if os._PREDIR then
path = os._PREDIR
os._PREDIR = nil
else
-- error
return false, string.format("not found the previous directory!")
end
end
-- is directory?
if os.isdir(path) then
-- get the current directory
local current = os.curdir()
-- change to directory
if not os.chdir(path) then
return false, string.format("cannot change directory %s!", path)
end
-- save the previous directory
os._PREDIR = current
-- not exists?
else
return false, string.format("cannot change directory %s, not found this directory!", path)
end
-- ok
return true
end
-- match files or directories
--
-- @param pattern the search pattern
-- uses "*" to match any part of a file or directory name,
-- uses "**" to recurse into subdirectories.
--
-- @param findir true: find directory, false: find file
-- @return the result array and count
--
-- @code
-- local dirs, count = os.match("./src/*", true)
-- local files, count = os.match("./src/**.c")
-- local file = os.match("./src/test.c")
-- @endcode
--
function os.match(pattern, findir)
-- translate path and remove some repeat separators
pattern = path.translate(pattern)
-- get the root directory
local rootdir = pattern
local starpos = pattern:find("%*")
if starpos then
rootdir = rootdir:sub(1, starpos - 1)
end
rootdir = path.directory(rootdir)
-- is recurse?
local recurse = pattern:find("**", nil, true)
-- convert pattern to a lua pattern
pattern = pattern:gsub("([%+%.%-%^%$%(%)%%])", "%%%1")
pattern = pattern:gsub("%*%*", "\001")
pattern = pattern:gsub("%*", "\002")
pattern = pattern:gsub("\001", ".*")
pattern = pattern:gsub("\002", "[^/]*")
-- find it
return os.find(rootdir, pattern, recurse, findir)
end
-- return module: os
return os
|
