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|
--!A cross-platform build utility based on Lua
--
-- 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
--
-- 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-present, Xmake Open Source Community.
--
-- @author ruki
-- @file global.lua
--
-- define module
local global = global or {}
-- load modules
local io = require("base/io")
local os = require("base/os")
local path = require("base/path")
local utils = require("base/utils")
local option = require("base/option")
-- get the global configuration value
--
-- @param name the configuration name
-- @return the configuration value
--
function global.get(name)
local value = nil
if global._CONFIGS then
value = global._CONFIGS[name]
if type(value) == "string" and value == "auto" then
value = nil
end
end
return value
end
-- this global name is readonly?
function global.readonly(name)
return global._MODES and global._MODES["__readonly_" .. name]
end
-- set the given configure to the current
--
-- @param name the name
-- @param value the value
-- @param opt the argument options, e.g. {readonly = false, force = false}
--
function global.set(name, value, opt)
-- check
assert(name)
-- init options
opt = opt or {}
-- check readonly
assert(opt.force or not global.readonly(name), "cannot set readonly global: " .. name)
-- set it
global._CONFIGS = global._CONFIGS or {}
global._CONFIGS[name] = value
-- mark as readonly
if opt.readonly then
global._MODES = global._MODES or {}
global._MODES["__readonly_" .. name] = true
end
end
-- get all options
function global.options()
-- remove values with "auto" and private item
local configs = {}
for name, value in pairs(table.wrap(global._CONFIGS)) do
if not name:find("^_%u+") and name ~= "__version" and (type(value) ~= "string" or value ~= "auto") then
configs[name] = value
end
end
return configs
end
-- get the configure file
function global.filepath()
return path.join(global.directory(), xmake._NAME .. ".conf")
end
-- get the global configuration directory, e.g. "~/.xmake"
--
-- @return the global directory path
--
function global.directory()
if global._DIRECTORY == nil then
local name = "." .. xmake._NAME
local rootdir = os.getenv("XMAKE_GLOBALDIR")
if not rootdir then
-- compatible with the old `%appdata%/.xmake` directory if it exists
local appdata = (os.host() == "windows") and os.getenv("APPDATA")
if appdata and os.isdir(path.join(appdata, name)) then
rootdir = appdata
else
rootdir = path.translate("~")
end
end
global._DIRECTORY = path.join(rootdir, name)
end
return global._DIRECTORY
end
-- get the global cache directory
function global.cachedir()
return global.get("cachedir") or path.join(global.directory(), "cache")
end
-- load the global configuration from file
--
-- @return true on success
--
function global.load()
-- load configure from the file first
local filepath = global.filepath()
if os.isfile(filepath) then
-- load configs
local results, errors = io.load(filepath)
if not results then
return false, errors
end
-- merge the configure
for name, value in pairs(results) do
if global.get(name) == nil then
global.set(name, value)
end
end
end
return true
end
-- save the global configuration to file
--
-- @return true on success, or false and error info
--
function global.save()
-- the options
local options = global.options()
assert(options)
-- add version
options.__version = xmake._VERSION_SHORT
-- save it
return io.save(global.filepath(), options)
end
-- clear config
function global.clear()
global._MODES = nil
global._CONFIGS = nil
end
-- dump the configure
function global.dump()
if not option.get("quiet") then
utils.print("configure")
utils.print("{")
for name, value in pairs(global.options()) do
if not name:startswith("__") then
utils.print(" %s = %s", name, value)
end
end
utils.print("}")
end
end
-- return module
return global
|
