101 lines
3.3 KiB
Plaintext
101 lines
3.3 KiB
Plaintext
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#!/usr/bin/env lua
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-- copyright header generator
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-- Copyright (C) 2019 Nguyễn Gia Phong <vn.mcsinyx@gmail.com>
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--
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-- This file is part of Vicious.
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--
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-- Vicious is free software: you can redistribute it and/or modify
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-- it under the terms of the GNU General Public License as
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-- published by the Free Software Foundation, either version 2 of the
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-- License, or (at your option) any later version.
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--
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-- Vicious is distributed in the hope that it will be useful,
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- GNU General Public License for more details.
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--
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-- You should have received a copy of the GNU General Public License
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-- along with Vicious. If not, see <https://www.gnu.org/licenses/>.
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local ipairs = ipairs
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local pairs = pairs
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local tonumber = tonumber
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local io = { open = io.open, popen = io.popen }
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local os = { exit = os.exit }
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local table = {
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concat = table.concat,
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insert = table.insert,
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sort = table.sort
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}
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local HEADER = [[-- %s
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%s
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--
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-- This file is part of Vicious.
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--
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-- Vicious is free software: you can redistribute it and/or modify
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-- it under the terms of the GNU General Public License as
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-- published by the Free Software Foundation, either version 2 of the
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-- License, or (at your option) any later version.
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--
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-- Vicious is distributed in the hope that it will be useful,
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- GNU General Public License for more details.
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--
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-- You should have received a copy of the GNU General Public License
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-- along with Vicious. If not, see <https://www.gnu.org/licenses/>.
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%s]]
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local COMMAND = "git log --date=format:%Y --format='%ad %an <%ae>' "
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if #arg == 0 then
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print'usage: headergen lua-source-files'
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os.exit(1)
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end
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for _, filename in ipairs(arg) do
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local fi = io.open(filename)
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local content = fi:read'*a'
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fi:close()
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local holders = {}
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local output = io.popen(COMMAND .. filename)
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for line in output:lines() do
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local year, author = line:match'(%d+)%s+(.+)'
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if holders[author] == nil then holders[author] = {} end
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holders[author][year] = true
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end
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output:close()
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local copyrights = {}
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for author, years in pairs(holders) do
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local time = {}
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for year, _ in pairs(years) do table.insert(time, tonumber(year)) end
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table.sort(time)
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local copyright = { 'Copyright (C) ' }
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for _, current in ipairs(time) do
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local prev = tonumber(copyright[#copyright])
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if prev == nil then
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table.insert(copyright, current)
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elseif current - 1 ~= prev then
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table.insert(copyright, ',')
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table.insert(copyright, current)
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elseif copyright[#copyright - 1] == '-' then
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copyright[#copyright] = current
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else
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table.insert(copyright, '-')
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table.insert(copyright, current)
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end
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end
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table.insert(copyrights,
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('-- %s %s'):format(table.concat(copyright), author))
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end
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local fo = io.open(filename, 'w')
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table.sort(copyrights)
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fo:write(HEADER:format(filename, table.concat(copyrights, '\n'), content))
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fo:close()
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end
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