Module:CiteGithub

Documentation for this module may be created at Module:CiteGithub/doc

local CiteGithub = {}
local StringEx = require("Module:StringExtension")

local FILE_PATH_PREFIX = "https://github.com/teamstarcup/starcup/blob/"

function CiteGithub.main(frame)
	local args = frame:getParent().args
	local argPath = args[1]
	
	if not StringEx.startswith(argPath, FILE_PATH_PREFIX) then
		error("Invalid argument: string must point to a file in the starcup" .. 
			" github repository")
		return
	end
	
	local trimmedPath = StringEx.replace(argPath, "https://github.com/teamstarcup/starcup/blob/", "")
	local firstSlashIndex, _evilStealthReturnValue = trimmedPath:find("/")
	local filePath = trimmedPath:sub(firstSlashIndex + 1)
	
	-- trim off line number range
	local firstOctothorpeIndex, _evilStealthReturnValue = filePath:find("#")
	firstOctothorpeIndex = firstOctothorpeIndex or 1
	local displayedFilePath = filePath:sub(1, firstOctothorpeIndex - 1)
	
	return string.format("[%s %s]", argPath, displayedFilePath)
end

return CiteGithub