#!/usr/bin/env lua5.1
-- used to maintain the symbolic links
REPOSITORY_DIR = os.getenv("HOME").."/public_html/repository/bootstraptools"

-- Are there bootstraptools packs ?
files = io.popen("ls $HOME/openbus/packs/openbus*bootstraptools*.tar.gz")

-- indexed by platform 
newer = {}

plat = ""
rev = ""
filename = ""
while (plat) do
	filename = files:read("*l")
	if not filename then
		break
	end
	parse = filename:gmatch("openbus%-(.*)%-bootstraptools%-(.+)%.tar%.gz")
	rev,plat = parse()
	-- saving in table the last revision package
	if type(plat) == "string" then
		newer[plat] = filename
	end
end

for plat, file in pairs(newer) do
	print("Updating symbolic link to the bootstraptools package named:"..file)
	assert(os.execute(" cd "..REPOSITORY_DIR.." && rm -f openbus-*-bootstraptools-"..plat..".tar.gz") == 0)
	assert(os.execute(" cd "..REPOSITORY_DIR.." && ln -s "..file.." .") == 0)
end