/usr/lib/python3/dist-packages/diffoscope/comparators/json.py is in diffoscope 93ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 | # -*- coding: utf-8 -*-
#
# diffoscope: in-depth comparison of files, archives, and directories
#
# Copyright © 2016 Chris Lamb <lamby@debian.org>
#
# diffoscope is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# diffoscope is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with diffoscope. If not, see <https://www.gnu.org/licenses/>.
import json
import collections
from diffoscope.difference import Difference
from .utils.file import File
try:
import jsondiff
except ImportError: # noqa
jsondiff = None
class JSONFile(File):
DESCRIPTION = "JSON files"
@classmethod
def recognizes(cls, file):
with open(file.path, 'rb') as f:
# Try fuzzy matching for JSON files
is_text = any(
file.magic_file_type.startswith(x)
for x in ('ASCII text', 'UTF-8 Unicode text'),
)
if is_text and not file.name.endswith('.json'):
buf = f.read(10)
if not any(x in buf for x in b'{['):
return False
f.seek(0)
try:
file.parsed = json.loads(
f.read().decode('utf-8', errors='ignore'),
object_pairs_hook=collections.OrderedDict,
)
except ValueError:
return False
return True
def compare_details(self, other, source=None):
difference = Difference.from_text(
self.dumps(self),
self.dumps(other),
self.path,
other.path,
)
if difference:
if jsondiff is not None:
a = getattr(self, 'parsed', {})
b = getattr(other, 'parsed', {})
diff = {repr(x): y for x, y in jsondiff.diff(a, b).items()}
difference.add_comment("Similarity: {}%".format(
jsondiff.similarity(a, b),
))
difference.add_comment("Differences: {}".format(
json.dumps(diff, indent=2, sort_keys=True),
))
return [difference]
difference = Difference.from_text(
self.dumps(self, sort_keys=False),
self.dumps(other, sort_keys=False),
self.path,
other.path,
comment="ordering differences only",
)
return [difference]
@staticmethod
def dumps(file, sort_keys=True):
if not hasattr(file, 'parsed'):
return ""
return json.dumps(file.parsed, indent=4, sort_keys=sort_keys)
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