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#!/usr/bin/env python
# Copyright 2014 Lars Wirzenius
#
# This program 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.
#
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
#
# =*= License: GPL-3+ =*=
import sys
import cliapp
import obnamlib
class TabCharacter(obnamlib.ObnamError):
msg = 'TAB character found: {line}'
class LongLine(obnamlib.ObnamError):
msg = 'long line ({length} chars after TAB expansion): {line}'
class SourceCodeNitpicker(cliapp.Application):
max_line_length = 79
def setup(self):
self.errors = False
def cleanup(self):
if self.errors:
sys.exit(1)
def process_input_line(self, filename, line):
line = line.rstrip('\n')
self.check_for_tabs(filename, line)
self.check_for_long_line (filename, line)
def check_for_tabs(self, filename, line):
if not filename.endswith('Makefile'):
if '\t' in line:
self.error(filename, self.lineno, TabCharacter(line=line))
def check_for_long_line(self, filename, line):
expanded = line.expandtabs()
if self.line_is_long(expanded) and self.line_can_be_broken(line):
self.error(
filename, self.lineno,
LongLine(line=line, length=len(expanded)))
def line_is_long(self, line):
return len(line) > self.max_line_length
def line_can_be_broken(self, line):
return len(line.split()) > 1
def error(self, filename, lineno, error):
self.output.write(
'%s:%s: %s\n' % (filename, lineno, str(error)))
self.errors = True
SourceCodeNitpicker().run()
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