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# Copyright 2012 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
import io
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
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
_ignored_service_errors = (
'error: required key "Name" in group "Desktop Entry" is not present',
'error: key "Actions" is present in group "Desktop Entry", but the type is "Service" while this key is only valid for type "Application"',
'error: key "MimeType" is present in group "Desktop Entry", but the type is "Service" while this key is only valid for type "Application"',
)
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:
try:
desktop_entry = parse_desktop_entry(path)
except ConfigParserError:
pass
else:
if desktop_entry.has_section("Desktop Entry"):
try:
entry_type = desktop_entry.get("Desktop Entry", "Type")
except ConfigParserError:
pass
else:
if entry_type == "Service":
# Filter false errors for Type=Service (bug #414125).
filtered_output = []
for line in output_lines:
if line[len(path)+2:] in _ignored_service_errors:
continue
filtered_output.append(line)
output_lines = filtered_output
return output_lines
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