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83 lines
1.8 KiB
Lua
83 lines
1.8 KiB
Lua
7 months ago
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local fs, cwd = (function()
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local ok, ocfs = pcall(require, 'filesystem')
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if ok then
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return ocfs, require('shell').getWorkingDirectory()
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end
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--otherwise, implement the functions we need on top of LuaFileSystem
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local lfs = require('lfs')
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local fs = {}
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function fs.list(path)
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local entries = {}
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for name in lfs.dir(path) do
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if name ~= '.' and name ~= '..' then
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if lfs.attributes(path .. '/' .. name, 'mode') == 'directory' then
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name = name .. '/'
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end
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table.insert(entries, name)
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end
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end
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return entries
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end
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function fs.makeDirectory(path)
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--drop the third return on error
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local ok, err, code = lfs.mkdir(path)
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if ok then
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return true
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else
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return nil, string.format('%s (error %d)', err, code)
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end
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end
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return fs, '.' --lfs will handle this properly
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end)()
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local stderr = io.stderr or io.error() --openos does this weirdly
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--configuration
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local outdir = 'dist/'
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--argument parsing
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do
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local args = {...}
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for i, arg in ipairs(args) do
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if arg == '-h' or arg == '--help' then
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print('usage: lua build.lua [-h|--help]')
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return
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end
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end
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--for now, error on any arguments (after parsing -h/--help)
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if args[1] then
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stderr:write(string.format('error: unexpected argument %q\n', args[1]))
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os.exit(64)
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end
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end
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local function exportFile(srcpath, dstpath)
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if not dstpath then
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dstpath = outdir .. srcpath
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end
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local srcf = assert(io.open(srcpath))
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local dstf = assert(io.open(dstpath, 'w'))
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--for now, run a very minimal minifier
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for line in srcf:lines() do
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local comment = line:find('--', nil, true)
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if comment then
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assert(line:sub(comment, comment + 3) ~= '--[', 'TODO block comments')
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line = line:sub(1, comment-1)
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end
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line = assert(line:match('^%s*(.-)%s*$'))
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if #line > 0 then
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dstf:write(line, '\n')
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end
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end
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end
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fs.makeDirectory(cwd .. '/' .. outdir)
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exportFile('boot.lua')
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-- vi: set ts=2:
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