RunasSudo/gimp-xsanecli
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Gracefully handle non-UTF8 characters in xsane output

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Thanks to Peter for the fix
This commit is contained in:
Piotr Chmura 2025-04-20 16:28:05 +10:00 committed by RunasSudo
parent df8c4042c4
commit dd0809b0eb
Signed by: RunasSudo
GPG Key ID: 7234E476BF21C61A
2 changed files with 17 additions and 21 deletions
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CONTRIBUTORS Normal file
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@ -0,0 +1 @@
Piotr Chmura

33
xsanecli.py
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@ -1,7 +1,7 @@
#!/usr/bin/env python3
# GIMP 3.0 plug-in for scanning via XSane
# Copyright (C) 2024-2025 Lee Yingtong Li (RunasSudo)
# Copyright (C) 2024-2025 Lee Yingtong Li (RunasSudo) and CONTRIBUTORS
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
@ -52,29 +52,24 @@ def xsanecli_run(procedure, config, run_data, *args):
args = ['xsane', '--save', '--no-mode-selection', '--force-filename', png_out, '--print-filenames'] + ([DEVICE_NAME] if DEVICE_NAME else [])
proc = subprocess.Popen(args, stdout=subprocess.PIPE, encoding='utf-8', env=xsane_env)
while True:
while proc.poll() is None:
# Wait until XSane prints the name of the scanned file, indicating scanning is finished
# This blocks Python but that is ok because GIMP UI is not affected
result = proc.stdout.readline().strip()
try:
result = proc.stdout.readline().strip()
except UnicodeDecodeError as e:
result = ''
if result == '':
# XSane was closed
break
if result == 'XSANE_IMAGE_FILENAME: ' + png_out:
# Open image
image = Gimp.file_load(Gimp.RunMode.NONINTERACTIVE, Gio.File.new_for_path(png_out))
Gimp.Display.new(image)
if result != 'XSANE_IMAGE_FILENAME: ' + png_out:
Gimp.message('Unexpected XSane result')
return Gimp.ValueArray.new_from_values([GObject.Value(Gimp.PDBStatusType, Gimp.PDBStatusType.EXECUTION_ERROR)])
# Remove temporary files
os.unlink(png_out)
# Open image
image = Gimp.file_load(Gimp.RunMode.NONINTERACTIVE, Gio.File.new_for_path(png_out))
Gimp.Display.new(image)
# Remove temporary files
os.unlink(png_out)
if not SCAN_MULTIPLE:
proc.terminate()
break
if not SCAN_MULTIPLE:
proc.terminate()
os.rmdir(tempdir)