Project

Profile

Help

Download (1.33 KB)

Issue #3462 » tag-orphan-remove.py

Used by tag-orphan-test - amacdona@redhat.com, 04/10/2018 08:09 PM

 
"""
A silly hack on top of jq to show whether a docker tag is present."

Command-line tool to validate and pretty-print JSON

Usage::

$ echo '{"json":"obj"}' | python -m json.tool
{
"json": "obj"
}
$ echo '{ 1.2:3.4}' | python -m json.tool
Expecting property name enclosed in double quotes: line 1 column 3 (char 2)

"""
import sys
import json

def test_obj(obj):
"""
asmacdo's stupid hack
"""
try:
tag_1 = obj['manifest_list_amd64_tags']['1']
except KeyError:
return {" Gone: (1 tag)": None}
return {" Present (1 tag)": tag_1}

def main():
if len(sys.argv) == 1:
infile = sys.stdin
outfile = sys.stdout
elif len(sys.argv) == 2:
infile = open(sys.argv[1], 'rb')
outfile = sys.stdout
elif len(sys.argv) == 3:
infile = open(sys.argv[1], 'rb')
outfile = open(sys.argv[2], 'wb')
else:
raise SystemExit(sys.argv[0] + " [infile [outfile]]")
with infile:
try:
obj = json.load(infile)
except ValueError, e:
raise SystemExit(e)
with outfile:
# call asmacdo's stupid hack
obj = test_obj(obj)
json.dump(obj, outfile, sort_keys=True,
indent=4, separators=(',', ': '))
outfile.write('\n')


if __name__ == '__main__':
main()

(1-1/2)