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--
-- data: stdio data (as read from a stdout file)
-- err: expected error code (0, 1 or 2)
-- which: which command to check if data contains input of several command
-- (0 by default)
-- band: the contents of which band to return
-- ('m', the main content, by default)
--
function parse_stdio(data, err, which, band)
local bands = {}
local errcodes = {}
local begin,End,headers = string.find(data, "(.-)\n\n");
-- FIXME: expand this to a proper header parser if
-- more headers are added in the future
check(string.find(headers, "^format%-version: %d$") ~= nil)
data = string.sub(data, End + 1)
while true do
local begin,End,cmdnum,bnd,size = string.find(data, "(%d+):(%l):(%d+):")
if begin == nil then break end
cmdnum = cmdnum + 0
if bands[cmdnum] == nil then
bands[cmdnum] = { m = "" }
end
local content = string.sub(data, End+1, End+size)
if bnd == "m" then
bands[cmdnum].m = bands[cmdnum].m .. content
elseif bnd == "l" then
errcodes[cmdnum] = tonumber(content)
else
if bands[cmdnum][bnd] == nil then
bands[cmdnum][bnd] = {}
end
table.insert(bands[cmdnum][bnd], content)
end
data = string.sub(data, End + 1 + size)
end
if which == nil then
which = 0
end
check(bands[which] ~= nil)
check(errcodes[which] ~= nil)
check(err == errcodes[which])
if band == nil then
band = "m"
end
if bands[which][band] == nil then
bands[which][band] = {}
end
return bands[which][band]
end
-- make_stdio_cmd({"cmd", "arg", "arg"}, {{"opt", "val"}, {"opt", "val"}})
function make_stdio_cmd(cmd, args)
local function lenstr(str)
return str:len() .. ":" .. str
end
local ret = ""
if args then
ret = ret .. "o"
for _, c in ipairs(args) do
ret = ret .. lenstr(c[1]) .. lenstr(c[2])
end
ret = ret .. "e"
end
ret = ret .. "l"
for _, c in ipairs(cmd) do
ret = ret .. lenstr(c)
end
ret = ret .. "e"
return ret
end
function run_stdio(cmd, err, which, band)
check(mtn("automate", "stdio"), 0, true, false, cmd)
return parse_stdio(readfile("stdout"), err, which, band)
end
function run_remote_stdio(server, cmd, err, which, band)
check(mtn2("automate", "remote_stdio", server.address), 0, true, false, cmd)
return parse_stdio(readfile("stdout"), err, which, band)
end
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