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#! /usr/bin/env lua
-- vim:sw=4:sts=4
-- Read a spec.lua file, extract the linklist, and search through the
-- .c source files of the module to verify that all these functions
-- are actually used.
--
-- Note that functions not directly being called from the source files may
-- still be used through macros.
--
require "script.util"
require "lfs"
function read_source(modname)
local dir, ar, s, f
dir = "src/" .. modname
ar = {}
for name in lfs.dir(dir) do
if string.sub(name, -2) == ".c" then
f = io.open(dir .. "/" .. name)
s = f:read"*a"
f:close()
ar[#ar + 1] = s
end
end
return table.concat(ar)
end
function main()
if #arg ~= 1 then
print("Usage: module name")
os.exit(1)
end
fname = string.format("src/%s/spec.lua", arg[1])
spec = load_spec(fname)
if not spec.linklist then
print("This module doesn't define a linklist.")
os.exit(0)
end
code = read_source(arg[1])
for _, func in ipairs(spec.linklist) do
if type(func) == "table" then
func = func[1]
end
if not string.find(code, func) then
print("Unused function:", func)
end
end
end
main()
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