Strips comments and convert glua script into single line file

glua_into_single_line_minifier.lua

local pat_mcomment_lua = "(%-%-%[(=*)%[.-%]%2%])"
local pat_mcomment_cpp = "(/%*.-%*/)"
local function stripMultiline(content)
	return content
		:gsub(pat_mcomment_lua, "")
		:gsub(pat_mcomment_cpp, "")
end

-- https://img.qweqwe.ovh/1556969630528.png
-- #TODO shitcoded heavy function
local pat_scomment_lua = "(%-%-[^\n]*)"
local pat_scomment_cpp = "[^:?](//[^\n]*)"
local function stripSingleline(content)
	local str = ""
	for _,line in ipairs(content:Split("\n")) do
		if string.sub(line, 1, 2) == '//' then line = '' end
		str = str .. line
			:gsub(pat_scomment_lua, "")
			:gsub(pat_scomment_cpp, "") .. "\n"
	end
	return str
end

local function removeComments(content)
	local a = stripMultiline(content)
	local b = stripSingleline(a)
	return b
end

local function removeUselessNewlines(content) -- compresses code
	local res = ""
	content:gsub("[^\n]+", function(line)
		if line:match("^%s*(.-)%s*$") ~= "" then
			res = res .. line:TrimRight() .. "\n" -- Trim даже слева табы уберет
		end
	end)
	return res
end

-- Use only after removing comments
local function multilineToSingle(content)
	return content:gsub("%c+", " "):TrimRight()
end

local function cleanupCode(content)
	local no_comments = removeComments(content)
	local no_extra_newlines = removeUselessNewlines(no_comments)
	return no_extra_newlines
end







local function minifyFile(path, realm)
	local content = file.Read(path, realm) -- original
	local clear   = cleanupCode(content) -- without comments, trailing spaces and unecessary newlines
	local single  = multilineToSingle(clear) -- 1 line file

	return single or clear
end

local function minifyAndSave(path, realm, save_to)
	local minified = minifyFile(path, realm)

	local destination = save_to .. "/" .. path:match("^addons/[^/]+/lua/(.+)$"):Replace(".lua", ".txt") -- gmod can't save with .lua ext
	file.AdvWrite(destination, minified)
end

local function minifyFolder(path, realm, save_to)
	local files = file.Index(path, realm)
	for _,file_path in ipairs(files) do
		minifyAndSave(file_path, realm, save_to)
	end
end


-- local HEADER = "-- You don't have permissions to use this code without a permit of admin@trigon.im\n-- TRIGON.IM 2018 (c)\n"
local dest_path = "igs/" .. IGS.Version
-- file.DeleteDir(dest_path)
-- minifyFolder("addons/wip-ingameshop/lua/igs_orig", "MOD", dest_path) -- find . -name "*.txt" -exec rename 's/\.txt$/.lua/' '{}' \;
-- minifyAndSave("addons/wip-ingameshop/lua/igs/apinator.lua", "MOD", dest_path)

Rename all .txt files to .lua recursively (useful for post-processing)

find . -name "*.txt" -exec rename 's/\.txt$/.lua/' '{}' \;

shell command to get latest release from github
https://gist.github.com/lukechilds/a83e1d7127b78fef38c2914c4ececc3c

get_latest_release() {
  curl --silent "https://api.github.com/repos/$1/releases/latest" | # Get latest release from GitHub api
    grep '"tag_name":' |                                            # Get tag line
    sed -E 's/.*"([^"]+)".*/\1/'                                    # Pluck JSON value
}

GitHub Action workflow для проверки глуалинтом от FPtje
https://github.com/Cherry/3D2D-Textscreens/actions/runs/506423554/workflow

Travis CI Workflow для упаковки кода в .gma архив
https://travis-ci.com/github/wiremod/advdupe2/jobs/482763437