113 lines
2.9 KiB
Lua
Executable File
113 lines
2.9 KiB
Lua
Executable File
#!/usr/bin/lua
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local function log(message)
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os.execute("logger " .. message)
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print(message)
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end
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if (table.getn(arg) == 0) then
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print("Usage: ./print-fetch {printerSocket} {gcodeServerURL} {id} [startGcode] [endGCode]")
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return
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end
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log("starting gcode fetch program")
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package.cpath = package.cpath .. '/usr/lib/lua/?.so'
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JSON = (loadfile "/usr/share/lua/wifibox/util/JSON.lua")()
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local p3d = require("print3d")
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local printer = p3d.getPrinter(arg[1])
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if printer == nil then
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log("error connecting to printer")
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return
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end
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local gcodeServer = arg[2]
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local finished = false
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local id = arg[3]
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log("gcode file id: " .. id)
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log("gcode server: " .. gcodeServer)
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local info = JSON:decode(io.popen("wget -qO - " .. gcodeServer .. "/info/" .. id):read("*a"))
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if info == nil then
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log("could not retrieve file info")
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return
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end
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local current_line = 0
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local total_lines = tonumber(info["lines"])
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local started = false
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log("total lines: " .. total_lines)
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local startCode = nil
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local endCode = nil
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function countlines(file)
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return tonumber(io.popen("wc -l < " .. file):read('*a'))
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end
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function readGCodeArg(argi)
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local gcodeFile = arg[argi]
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return io.open(gcodeFile):read('*a')
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end
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if table.getn(arg) >= 5 then
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startCode = readGCodeArg(4)
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endCode = readGCodeArg(5)
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end
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if startCode ~= nil then
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log("appending start gcode")
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printer:appendGcode(startCode)
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end
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while(not finished)
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do
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local f = io.popen("wget -qO - " .. gcodeServer .. "/fetch/" .. id .. "/" .. current_line)
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local line = f:read()
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while line ~= nil do
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printer:appendGcode(line, total_lines, { seq_number = -1, seq_total = -1, source = id })
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current_line = current_line + 1
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line = f:read()
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end
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if not started then
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started = true
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print("send print start command")
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printer:startPrint()
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end
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if current_line >= total_lines then
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log("finished fetching gcode")
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if endCode ~= nil then
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log("appending end gcode")
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printer:appendGcode(endCode, total_lines, { seq_number = -1, seq_total = -1, source = id })
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end
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finished = true
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break
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end
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local accepts_new_gcode = false
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while (not accepts_new_gcode)
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do
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local current,buffer,total,bufferSize,maxBufferSize = printer:getProgress()
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local percentageBufferSize = bufferSize / maxBufferSize
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if percentageBufferSize < 0.8 then
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print("buffer below 80% capacity, sending new gcode")
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accepts_new_gcode = true
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else
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print("buffer above 80% capacity")
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os.execute("sleep 10")
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end
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end
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end
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