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#!/usr/bin/env python3
"""Code related to violations and suppressions."""
import os
import os.path
import sys
from . import app
from . import rules
class RuleViolation(object):
def __init__(self, rule_id, violator, file, line, column):
self.rule_id = rule_id
self.violator = violator
self.file = file
self.line = line
self.column = column
def key(self):
return (self.file, self.line, self.column, self.rule_id, self.violator)
def __str__(self):
msg = '[%s:%d/%d] %s "%s": %s'
return msg % ('/'.join(self.file.split('/')[-2:]), self.line, self.column,
self.rule_id, self.violator, rules.RULE_TEXTS[self.rule_id])
class SimpleRuleViolation(object):
def __init__(self, rule_id, file, line, column, msg):
self.rule_id = rule_id
self.file = file
self.line = line
self.column = column
self.msg = msg
def key(self):
return (self.file, self.line, self.column, self.rule_id)
def __str__(self):
msg = '[%s:%d/%d] %s : %s'
return msg % ('/'.join(self.file.split('/')[-2:]), self.line, self.column,
self.rule_id, self.msg)
class NolintManager(object):
"""Manage the lines ending in '//nolint'."""
def __init__(self):
self.locations = {}
def hasNolint(self, filename, lineno):
filename = os.path.abspath(filename)
# Ensure that the nolint lines are registered in self.locations[filename].
if filename not in self.locations:
line_set = set()
with open(filename, 'rb') as f:
line_no = 0
for line in f:
line_no += 1
if line.strip().endswith('// nolint'):
## print 'nolint', filename, line_no
line_set.add(line_no)
self.locations[filename] = line_set
# Query self.locations[filename].
return lineno in self.locations[filename]
class ViolationPrinter(object):
def __init__(self, ignore_nolint, show_source):
self.nolints = NolintManager()
self.file_cache = app.FileCache()
self.ignore_nolint = ignore_nolint
self.show_source = show_source
def show(self, vs):
previous = None
for k in sorted(vs.keys()):
violation = vs[k]
if self.ignore_nolint or not self.nolints.hasNolint(violation.file, violation.line):
print(violation)
line = self.file_cache.get(violation.file)[violation.line - 1]
if self.show_source:
print(line.rstrip())
print('%s^' % (' ' * (violation.column - 1)))
print()
previous = violation
print('Total: %d violations' % len(vs))
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