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# Copyright 2012 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
import io
import re
import subprocess
import sys
try:
from configparser import Error as ConfigParserError, RawConfigParser
except ImportError:
from ConfigParser import Error as ConfigParserError, RawConfigParser
from portage import _encodings, _unicode_encode, _unicode_decode
from portage.util import writemsg
def parse_desktop_entry(path):
"""
Parse the given file with RawConfigParser and return the
result. This may raise an IOError from io.open(), or a
ParsingError from RawConfigParser.
"""
parser = RawConfigParser()
# use read_file/readfp in order to control decoding of unicode
try:
# Python >=3.2
read_file = parser.read_file
except AttributeError:
read_file = parser.readfp
with io.open(_unicode_encode(path,
encoding=_encodings['fs'], errors='strict'),
mode='r', encoding=_encodings['repo.content'],
errors='replace') as f:
content = f.read()
# In Python 3.2, read_file does not support bytes in file names
# (see bug #429544), so use StringIO to hide the file name.
read_file(io.StringIO(content))
return parser
_trivial_warnings = re.compile(r' looks redundant with value ')
_ignored_errors = (
# Ignore error for emacs.desktop:
# https://bugs.freedesktop.org/show_bug.cgi?id=35844#c6
'error: (will be fatal in the future): value "TextEditor" in key "Categories" in group "Desktop Entry" requires another category to be present among the following categories: Utility',
'warning: key "Encoding" in group "Desktop Entry" is deprecated'
)
def validate_desktop_entry(path):
args = ["desktop-file-validate", path]
if sys.hexversion < 0x3000000 or sys.hexversion >= 0x3020000:
# Python 3.1 does not support bytes in Popen args.
args = [_unicode_encode(x, errors='strict') for x in args]
proc = subprocess.Popen(args,
stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
output_lines = _unicode_decode(proc.communicate()[0]).splitlines()
proc.wait()
if output_lines:
filtered_output = []
for line in output_lines:
msg = line[len(path)+2:]
# "hint:" output is new in desktop-file-utils-0.21
if msg.startswith('hint: ') or msg in _ignored_errors:
continue
filtered_output.append(line)
output_lines = filtered_output
if output_lines:
output_lines = [line for line in output_lines
if _trivial_warnings.search(line) is None]
return output_lines
if __name__ == "__main__":
for arg in sys.argv[1:]:
for line in validate_desktop_entry(arg):
writemsg(line + "\n", noiselevel=-1)
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