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if not modules then modules = { } end modules ['mtx-watch'] = {
version = 1.001,
comment = "companion to mtxrun.lua",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
texmf.instance = instance -- we need to get rid of this / maybe current instance in global table
scripts = scripts or { }
scripts.watch = scripts.watch or { }
function scripts.watch.watch()
local delay = environment.argument("delay") or 5
local logpath = environment.argument("logpath") or ""
local pipe = environment.argument("pipe") or false
if #environment.files > 0 then
for _, path in ipairs(environment.files) do
logs.report("watch", "watching path ".. path)
end
local function glob(files,path)
for name in lfs.dir(path) do
if name:find("^%.") then
-- skip . and ..
else
name = path .. "/" .. name
local a = lfs.attributes(name)
if not a then
-- weird
elseif a.mode == "directory" then
if name:find("graphics$") or name:find("figures$") or name:find("resources$") then
-- skip these too
else
glob(files,name)
end
elseif name:find(".%luj$") then
files[name] = a.change or a.ctime or a.modification or a.mtime
end
end
end
end
local n = 0
local function process()
local done = false
for _, path in ipairs(environment.files) do
lfs.chdir(path)
local files = { }
glob(files,path)
table.sort(files) -- what gets sorted here
for name, time in pairs(files) do
--~ local ok, joblog = xpcall(function() return dofile(name) end, function() end )
local ok, joblog = pcall(dofile,name)
if ok and joblog then
if joblog.status == "processing" then
logs.report("watch",string.format("aborted job, %s added to queue",name))
joblog.status = "queued"
io.savedata(name, table.serialize(joblog,true))
elseif joblog.status == "queued" then
local command = joblog.command
if command then
local replacements = {
inputpath = (joblog.paths and joblog.paths.input ) or ".",
outputpath = (joblog.paths and joblog.paths.output) or ".",
filename = joblog.filename or "",
}
command = command:gsub("%%(.-)%%", replacements)
if command ~= "" then
joblog.status = "processing"
joblog.runtime = os.time() -- os.clock()
io.savedata(name, table.serialize(joblog,true))
logs.report("watch",string.format("running: %s", command))
local newpath = file.dirname(name)
io.flush()
local result = ""
if newpath ~= "" and newpath ~= "." then
local oldpath = lfs.currentdir()
lfs.chdir(newpath)
if pipe then result = os.resultof(command) else result = os.execute(command) end
lfs.chdir(oldpath)
else
if pipe then result = os.resultof(command) else result = os.execute(command) end
end
logs.report("watch",string.format("return value: %s", result))
done = true
local path, base = replacements.outputpath, file.basename(replacements.filename)
joblog.runtime = os.time() - joblog.runtime -- os.clock() - joblog.runtime
joblog.result = file.replacesuffix(file.join(path,base),"pdf")
joblog.size = lfs.attributes(joblog.result,"size")
joblog.status = "finished"
else
joblog.status = "invalid command"
end
else
joblog.status = "no command"
end
-- pcall, when error sleep + again
io.savedata(name, table.serialize(joblog,true))
if logpath ~= "" then
local name = string.format("%s/%s%04i%09i.lua", logpath, os.time(), math.floor((os.clock()*100)%1000), math.random(99999999))
io.savedata(name, table.serialize(joblog,true))
logs.report("watch", "saving joblog ".. name)
end
end
end
end
end
end
local function wait()
io.flush()
if not done then
n = n + 1
if n >= 10 then
logs.report("watch", "still sleeping " .. os.clock())
n = 0
end
os.sleep(delay)
end
end
while true do
pcall(process)
pcall(wait)
end
else
logs.report("watch", "no paths to watch")
end
end
function scripts.watch.collect_logs(path) -- clean 'm up too
path = path or environment.argument("logpath") or ""
path = (path == "" and ".") or path
local files = dir.globfiles(path,false,"^%d+%.lua$")
local collection = { }
local valid = table.tohash({"filename","result","runtime","size","status"})
for _, name in ipairs(files) do
local t = dofile(name)
if t and type(t) == "table" and t.status then
for k, v in pairs(t) do
if not valid[k] then
t[k] = nil
end
end
collection[name:gsub("[^%d]","")] = t
end
end
return collection
end
function scripts.watch.save_logs(collection,path) -- play safe
if collection and not table.is_empty(collection) then
path = path or environment.argument("logpath") or ""
path = (path == "" and ".") or path
local filename = string.format("%s/collected-%s.lua",path,tostring(os.time()))
io.savedata(filename,table.serialize(collection,true))
local check = dofile(filename)
for k,v in pairs(check) do
if not collection[k] then
logs.error("watch", "error in saving file")
os.remove(filename)
return false
end
end
for k,v in pairs(check) do
os.remove(string.format("%s.lua",k))
end
return true
else
return false
end
end
function scripts.watch.collect_collections(path) -- removes duplicates
path = path or environment.argument("logpath") or ""
path = (path == "" and ".") or path
local files = dir.globfiles(path,false,"^collected%-%d+%.lua$")
local collection = { }
for _, name in ipairs(files) do
local t = dofile(name)
if t and type(t) == "table" then
for k, v in pairs(t) do
collection[k] = v
end
end
end
return collection
end
function scripts.watch.show_logs(path) -- removes duplicates
local collection = scripts.watch.collect_collections(path) or { }
local max = 0
for k,v in pairs(collection) do
v = v.filename or "?"
if #v > max then max = #v end
end
print(max)
for k,v in ipairs(table.sortedkeys(collection)) do
local c = collection[v]
local f, s, r, n = c.filename or "?", c.status or "?", c.runtime or 0, c.size or 0
logs.report("watch", string.format("%s %s %3i %8i %s",string.padd(f,max," "),string.padd(s,10," "),r,n,v))
end
end
banner = banner .. " | watchdog"
messages.help = [[
--logpath optional path for log files
--watch watch given path
--pipe use pipe instead of execute
--delay delay between sweeps
--collect condense log files
--showlog show log data
]]
input.verbose = true
if environment.argument("watch") then
scripts.watch.watch()
elseif environment.argument("collect") then
scripts.watch.save_logs(scripts.watch.collect_logs())
elseif environment.argument("showlog") then
scripts.watch.show_logs()
else
input.help(banner,messages.help)
end
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