forked from izaya/OC-PsychOS2
add some simple minification filters to preproc, which can shrink the kernel significantly
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parent
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commit
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@ -1,4 +1,4 @@
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local preproc = require "preproc"
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--local tA = {...}
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preproc.minify = true
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preproc(...)
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31
preproc.lua
31
preproc.lua
@ -82,11 +82,40 @@ function preproc.directives.includepkglib(package, file, name) -- string string
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return string.format("package.loaded['%s'] = (function()\n%s\nend)()", name, preproc.directives.includepkgfile(package, file))
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end
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local minify = true
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local minifyFilters = {
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{"%-%-%[%[.-%]%]",""},
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{"%-%-.-\n","\n"},
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{"\n[ \t]+","\n"},
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{"%s?%.%.%s?",".."},
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{"%s?==%s?","=="},
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{"%s?~=%s?","~="},
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{"%s?>=%s?",">="},
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{"%s?<=%s?","<="},
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{"%s?>%s?",">"},
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{"%s?<%s?","<"},
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{"%s?=%s?","="},
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{"%s?,%s?",","},
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{",\n",","},
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{"\n\n+","\n"},
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{"[ \t]\n","\n"},
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{"%{%s+","{"},
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{"%s+%}","}"}
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}
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return setmetatable(preproc,{__call=function(_,...)
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local tA = {...}
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local out = table.remove(tA,#tA)
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local f,e = io.open(out,"wb")
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if not f then error("unable to open file "..out..": "..e) end
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f:write(preproc.preproc(table.unpack(tA)))
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local out = preproc.preproc(table.unpack(tA))
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if preproc.minify then
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local olen = #out
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for k,v in ipairs(minifyFilters) do
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out = out:gsub(v[1],v[2])
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end
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print(olen, #out)
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end
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f:write(out)
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f:close()
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end})
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