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3697842bc5
The map iterator now has init/finish capability, making it possible to write scripts that aggregate data over multiple map files. One such example calculates some statistics, the other loads art metadata and looks for red walls with non-pow2 ysize tiles. git-svn-id: https://svn.eduke32.com/eduke32@2814 1a8010ca-5511-0410-912e-c29ae57300e0
54 lines
1.5 KiB
Lua
Executable file
54 lines
1.5 KiB
Lua
Executable file
#!/usr/local/bin/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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io.stdout:write("Usage: luajit ./foreachmap <module[.lua]> [init args...] <filename.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 = require(modname)
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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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