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--!A cross-platform build utility based on Lua
--
-- Licensed to the Apache Software Foundation (ASF) under one
-- or more contributor license agreements. See the NOTICE file
-- distributed with this work for additional information
-- regarding copyright ownership. The ASF licenses this file
-- to you 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
--
-- Unless required by applicable law or agreed to in writing, software
-- distributed under the License is distributed on an "AS IS" BASIS,
-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-- See the License for the specific language governing permissions and
-- limitations under the License.
--
-- Copyright (C) 2015 - 2017, TBOOX Open Source Group.
--o
-- @author ruki
-- @file log.lua
--
-- define module: log
local log = log or {}
-- get the log file
function log.file()
-- get the output file
if log._FILE == nil then
local outputfile = log.outputfile()
if outputfile then
-- get directory
local i = outputfile:find_last("[/\\]")
if i then
if i > 1 then i = i - 1 end
dir = outputfile:sub(1, i)
else
dir = "."
end
-- ensure the directory
if not os.isdir(dir) then
os.mkdir(dir)
end
-- open the log file
log._FILE = io.open(outputfile, 'w+')
end
log._FILE = log._FILE or false
end
return log._FILE
end
-- get the output file
function log.outputfile()
if log._LOGFILE == nil then
log._LOGFILE = os.getenv("XMAKE_LOGFILE") or false
end
return log._LOGFILE
end
-- flush log to file
function log.flush()
local file = log.file()
if file then
io.flush(file)
end
end
-- close the log file
function log.close()
local file = log.file()
if file then
file:close()
end
end
-- print log to the log file
function log.print(...)
local file = log.file()
if file then
file:write(string.format(...) .. "\n")
end
end
-- print variables to the log file
function log.printv(...)
local file = log.file()
if file then
local values = {...}
for i, v in ipairs(values) do
-- dump basic type
if type(v) == "string" or type(v) == "boolean" or type(v) == "number" then
file:write(tostring(v))
else
file:write("<" .. tostring(v) .. ">")
end
if i ~= #values then
file:write(" ")
end
end
file:write('\n')
end
end
-- printf log to the log file
function log.printf(...)
local file = log.file()
if file then
file:write(string.format(...))
end
end
-- write log the log file
function log:write(...)
local file = log.file()
if file then
file:write(...)
end
end
-- return module: log
return log
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