attach files to a launchpad bug from the command line

lp-attach

#!/usr/bin/python
#
# Usage:
# $ lp-attach 1234 foo.debdiff bar.debdiff
#
import os
import sys
from launchpadlib.launchpad import Launchpad


def usage():
    print('Usage:\n\tlp-attach <bug_number> <file> [<file> <file> ...]')


if len(sys.argv) <= 2:
    usage()
    sys.exit(1)


def no_credential():
    print("Can't proceed without Launchpad credential.")
    sys.exit()

launchpad = Launchpad.login_with('lp-attach', 'production', credential_save_failed=no_credential)

try:
    bug = launchpad.bugs[int(sys.argv[1])]
except ValueError:
    print("ERROR: '%s' not a bug number" % sys.argv[1])
    usage()
    sys.exit(1)


for fname in sys.argv[2:]:
    if not os.path.isfile(fname):
        continue

    if os.path.splitext(fname)[1] in ['.debdiff', '.patch']:
        is_patch = True
    else:
        is_patch = False

    with open(fname, 'rb') as f:
        bug.addAttachment(comment="",
                          data=f.read(),
                          description="",
                          is_patch=is_patch,
                          filename=os.path.basename(fname))
        res = bug.lp_save()
        print(res)