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https://github.com/DrBeef/Raze.git
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82 lines
2.6 KiB
Lua
Executable file
82 lines
2.6 KiB
Lua
Executable file
#!/usr/bin/env luajit
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-- Generic map iterator.
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-- The first cmdline arg is a name of a lua file (may be sans .lua) which must
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-- be a module and is `require'd into this script, e.g. "stats" or "stats.lua".
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-- First, a key named .init is looked up in the loaded module and if it exists,
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-- it is run like .init(arg) (thus allowing it to parse the command-line
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-- arguments and then potentially remove the ones it used).
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-- If .init returns non-nil, this script aborts.
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-- Otherwise, for each 2nd and following argument, if map loading succeeds,
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-- .success(map, filename) is run, otherwise
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-- .failure(filename, errmsg) is run if that key exists, or a standard error
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-- message is printed to stderr.
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-- Finally, if there is a .finish field in the module, it is run with no args.
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local B = require "build"
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local string = require "string"
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local io = require "io"
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local os = require "os"
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if (#arg < 1) then
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local wr = function(s) io.stdout:write(s) end
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wr("Usage: ./foreachmap <module[.lua]> [init args...] <filename.map> ...\n")
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wr(" ./foreachmap -e\"some_lua_code ...\" <filename.map> ...\n\n")
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wr("In the second form, the code is run as body of a function(map, fn)\n")
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wr("and num{sectors,walls,sprites} and {sector,wall,sprite} do not\n")
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wr("need to be qualified with the \"map.\" prefix.\n\n")
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wr("Example: ./foreachmap.lua -e\"if map.numbunches==1 then print(fn) end\" ~/.eduke32/*.map\n\n")
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return
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end
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local modname = string.gsub(arg[1], "%.lua$", "")
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local mod
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if (modname:sub(1,2) == "-e") then
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local body = modname:sub(3)
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local successfunc, errmsg = loadstring(
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"local numsectors, numwalls, numsprites\n"
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.."local sector, wall, sprite\n"
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.."return function (map, fn) \n"
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.." numsectors, numwalls, numsprites = map.numsectors, map.numwalls, map.numsprites\n"
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.." sector, wall, sprite = map.sector, map.wall, map.sprite\n"
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..body.."\n"
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.."end"
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)
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if (successfunc==nil) then
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io.stderr:write("Error loading string: "..errmsg.."\n")
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os.exit(1)
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end
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mod = { success=successfunc() }
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else
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mod = require(modname)
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end
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if (mod.init) then
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if (mod.init(arg) ~= nil) then
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os.exit(1)
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end
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end
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for i=2,#arg do
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local fn = arg[i]
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local map, errmsg = B.loadboard(fn)
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if (map ~= nil) then
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mod.success(map, fn)
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else
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if (mod.failure) then
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mod.failure(fn, errmsg)
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else
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io.stderr:write(string.format("--- %s: %s\n", fn, errmsg))
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end
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end
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end
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if (mod.finish) then
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mod.finish()
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end
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