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if not modules then modules = { } end modules ['luat-sta'] = {
version = 1.001,
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
-- this code is used in the updater
local gmatch, match = string.gmatch, string.match
local type = type
states = states or { }
local states = states
states.data = states.data or { }
local data = states.data
states.hash = states.hash or { }
local hash = states.hash
states.tag = states.tag or ""
states.filename = states.filename or ""
function states.save(filename,tag)
tag = tag or states.tag
filename = file.addsuffix(filename or states.filename,'lus')
io.savedata(filename,
"-- generator : luat-sta.lua\n" ..
"-- state tag : " .. tag .. "\n\n" ..
table.serialize(data[tag or states.tag] or {},true)
)
end
function states.load(filename,tag)
states.filename = filename
states.tag = tag or "whatever"
states.filename = file.addsuffix(states.filename,'lus')
data[states.tag], hash[states.tag] = (io.exists(filename) and dofile(filename)) or { }, { }
end
local function set_by_tag(tag,key,value,default,persistent)
local d, h = data[tag], hash[tag]
if d then
if type(d) == "table" then
local dkey, hkey = key, key
local pre, post = match(key,"(.+)%.([^%.]+)$")
if pre and post then
for k in gmatch(pre,"[^%.]+") do
local dk = d[k]
if not dk then
dk = { }
d[k] = dk
elseif type(dk) == "string" then
-- invalid table, unable to upgrade structure
-- hope for the best or delete the state file
break
end
d = dk
end
dkey, hkey = post, key
end
if value == nil then
value = default
elseif value == false then
-- special case
elseif persistent then
value = value or d[dkey] or default
else
value = value or default
end
d[dkey], h[hkey] = value, value
elseif type(d) == "string" then
-- weird
data[tag], hash[tag] = value, value
end
end
end
local function get_by_tag(tag,key,default)
local h = hash[tag]
if h and h[key] then
return h[key]
else
local d = data[tag]
if d then
for k in gmatch(key,"[^%.]+") do
local dk = d[k]
if dk ~= nil then
d = dk
else
return default
end
end
if d == false then
return false
else
return d or default
end
end
end
end
states.set_by_tag = set_by_tag
states.get_by_tag = get_by_tag
function states.set(key,value,default,persistent)
set_by_tag(states.tag,key,value,default,persistent)
end
function states.get(key,default)
return get_by_tag(states.tag,key,default)
end
--~ data.update = {
--~ ["version"] = {
--~ ["major"] = 0,
--~ ["minor"] = 1,
--~ },
--~ ["rsync"] = {
--~ ["server"] = "contextgarden.net",
--~ ["module"] = "minimals",
--~ ["repository"] = "current",
--~ ["flags"] = "-rpztlv --stats",
--~ },
--~ ["tasks"] = {
--~ ["update"] = true,
--~ ["make"] = true,
--~ ["delete"] = false,
--~ },
--~ ["platform"] = {
--~ ["host"] = true,
--~ ["other"] = {
--~ ["mswin"] = false,
--~ ["linux"] = false,
--~ ["linux-64"] = false,
--~ ["osx-intel"] = false,
--~ ["osx-ppc"] = false,
--~ ["sun"] = false,
--~ },
--~ },
--~ ["context"] = {
--~ ["available"] = {"current", "beta", "alpha", "experimental"},
--~ ["selected"] = "current",
--~ },
--~ ["formats"] = {
--~ ["cont-en"] = true,
--~ ["cont-nl"] = true,
--~ ["cont-de"] = false,
--~ ["cont-cz"] = false,
--~ ["cont-fr"] = false,
--~ ["cont-ro"] = false,
--~ },
--~ ["engine"] = {
--~ ["pdftex"] = {
--~ ["install"] = true,
--~ ["formats"] = {
--~ ["pdftex"] = true,
--~ },
--~ },
--~ ["luatex"] = {
--~ ["install"] = true,
--~ ["formats"] = {
--~ },
--~ },
--~ ["xetex"] = {
--~ ["install"] = true,
--~ ["formats"] = {
--~ ["xetex"] = false,
--~ },
--~ },
--~ ["metapost"] = {
--~ ["install"] = true,
--~ ["formats"] = {
--~ ["mpost"] = true,
--~ ["metafun"] = true,
--~ },
--~ },
--~ },
--~ ["fonts"] = {
--~ },
--~ ["doc"] = {
--~ },
--~ ["modules"] = {
--~ ["f-urwgaramond"] = false,
--~ ["f-urwgothic"] = false,
--~ ["t-bnf"] = false,
--~ ["t-chromato"] = false,
--~ ["t-cmscbf"] = false,
--~ ["t-cmttbf"] = false,
--~ ["t-construction-plan"] = false,
--~ ["t-degrade"] = false,
--~ ["t-french"] = false,
--~ ["t-lettrine"] = false,
--~ ["t-lilypond"] = false,
--~ ["t-mathsets"] = false,
--~ ["t-tikz"] = false,
--~ ["t-typearea"] = false,
--~ ["t-vim"] = false,
--~ },
--~ }
--~ states.save("teststate", "update")
--~ states.load("teststate", "update")
--~ print(states.get_by_tag("update","rsync.server","unknown"))
--~ states.set_by_tag("update","rsync.server","oeps")
--~ print(states.get_by_tag("update","rsync.server","unknown"))
--~ states.save("teststate", "update")
--~ states.load("teststate", "update")
--~ print(states.get_by_tag("update","rsync.server","unknown"))
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