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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        main.lua
--

-- imports
import("core.base.option")
import("core.sandbox.module")
import("core.sandbox.sandbox")
import("core.project.project")
import("utils.run_script")

-- get all lua scripts
function scripts()
    local names = {}
    local oldir = os.cd(os.workingdir())
    local files = os.files(path.join(os.scriptdir(), "scripts/*.lua"))
    for _, file in ipairs(files) do
        table.insert(names, path.basename(file))
    end
    os.cd(oldir)
    return names
end

-- list all lua scripts
function _list()
    print("scripts:")
    for _, file in ipairs(scripts()) do
        print("    " .. file)
    end
end

function main()

    -- list builtin scripts
    if option.get("list") then
        return _list()
    end

    -- run script
    local script = option.get("script")
    local arguments = option.get("arguments")
    local from_stdin = option.get("from_stdin") or option.get("from-stdin")
    if script or from_stdin then

        -- run script from stdin?
        local scriptfile_stdin
        if script == "-" or from_stdin then
            local script_content = io.stdin:read("*a")
            if script_content then
                scriptfile_stdin = os.tmpfile("xmake_lua_stdin") .. ".lua"
                io.writefile(scriptfile_stdin, script_content)
                if from_stdin and script and script ~= "-" then
                    arguments = arguments or {}
                    table.insert(arguments, 1, script)
                end
                script = scriptfile_stdin
            end
        end

        try {
            function ()
                if script then
                    run_script(script, {
                        curdir = os.workingdir(),
                        verbose = option.get("verbose"),
                        diagnosis = option.get("diagnosis"),
                        command = option.get("command"),
                        arguments = arguments,
                        deserialize = option.get("deserialize")})
                end
            end,
            catch {
                function (errors)
                    raise(errors)
                end
            },
            finally {
                function ()
                    if scriptfile_stdin then
                        os.rm(scriptfile_stdin)
                    end
                end
            }
        }
    else
        -- enter interactive mode
        sandbox.interactive()
    end
end