barker/frank/printing.py

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import re # noqa: F401
import socket # noqa: F401
import sys # noqa: F401
from arq import Retry
async def sent_to_printer(ctx: dict, data: str, address: str, cut_code: str):
address = "/printer"
try:
print("Printing to :", address, "\n", data, "\n")
with open(address, "w") as printer:
printer.write(data)
printer.write("\n")
print(cut_code)
printer.write(cut_code)
except LookupError as e:
print("Lookup error:", e)
raise Retry(defer=ctx["job_try"] * 30)
except FileNotFoundError as e:
print("File not found error:", e)
raise Retry(defer=ctx["job_try"] * 30)
except: # noqa: E722
print("Unexpected error:", sys.exc_info()[0])
# retry the job with increasing back-off
# delays will be 5s, 10s, 15s, 20s
# after max_tries (default 5) the job will permanently fail
raise Retry(defer=ctx["job_try"] * 30)
# GS = "\x1d"
# PAPER_CUT = GS + "V"
# # For the printer ESC/POS Reference
# # https://reference.epson-biz.com/modules/ref_escpos/index.php?content_id=87
# # The m codes are in decimal and can be converted using the following table
# # https://www.eso.org/~ndelmott/ascii.html
# # The \x03 in all the following is to feed 3 lines before cut it can be increased or reduced
# FUNCTION_B_FULL_CUT = "\x41\x03"
# FUNCTION_B_PARTIAL_CUT = "\x42\x03"