116 lines
3.7 KiB
Python
116 lines
3.7 KiB
Python
![]() |
# Copyright (c) 2007, 2010, 2013, 2015 LOGILAB S.A. (Paris, FRANCE) <contact@logilab.fr>
|
||
|
# Copyright (c) 2015-2016 Claudiu Popa <pcmanticore@gmail.com>
|
||
|
|
||
|
# Licensed under the GPL: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
|
||
|
# For details: https://github.com/PyCQA/pylint/blob/master/COPYING
|
||
|
|
||
|
""" Copyright (c) 2003-2010 LOGILAB S.A. (Paris, FRANCE).
|
||
|
http://www.logilab.fr/ -- mailto:contact@logilab.fr
|
||
|
|
||
|
Raw metrics checker
|
||
|
"""
|
||
|
|
||
|
import tokenize
|
||
|
|
||
|
from pylint.interfaces import ITokenChecker
|
||
|
from pylint.exceptions import EmptyReportError
|
||
|
from pylint.checkers import BaseTokenChecker
|
||
|
from pylint.reporters import diff_string
|
||
|
from pylint.reporters.ureports.nodes import Table
|
||
|
|
||
|
|
||
|
def report_raw_stats(sect, stats, old_stats):
|
||
|
"""calculate percentage of code / doc / comment / empty
|
||
|
"""
|
||
|
total_lines = stats['total_lines']
|
||
|
if not total_lines:
|
||
|
raise EmptyReportError()
|
||
|
sect.description = '%s lines have been analyzed' % total_lines
|
||
|
lines = ('type', 'number', '%', 'previous', 'difference')
|
||
|
for node_type in ('code', 'docstring', 'comment', 'empty'):
|
||
|
key = node_type + '_lines'
|
||
|
total = stats[key]
|
||
|
percent = float(total * 100) / total_lines
|
||
|
old = old_stats.get(key, None)
|
||
|
if old is not None:
|
||
|
diff_str = diff_string(old, total)
|
||
|
else:
|
||
|
old, diff_str = 'NC', 'NC'
|
||
|
lines += (node_type, str(total), '%.2f' % percent,
|
||
|
str(old), diff_str)
|
||
|
sect.append(Table(children=lines, cols=5, rheaders=1))
|
||
|
|
||
|
|
||
|
class RawMetricsChecker(BaseTokenChecker):
|
||
|
"""does not check anything but gives some raw metrics :
|
||
|
* total number of lines
|
||
|
* total number of code lines
|
||
|
* total number of docstring lines
|
||
|
* total number of comments lines
|
||
|
* total number of empty lines
|
||
|
"""
|
||
|
|
||
|
__implements__ = (ITokenChecker,)
|
||
|
|
||
|
# configuration section name
|
||
|
name = 'metrics'
|
||
|
# configuration options
|
||
|
options = ()
|
||
|
# messages
|
||
|
msgs = {}
|
||
|
# reports
|
||
|
reports = (('RP0701', 'Raw metrics', report_raw_stats),)
|
||
|
|
||
|
def __init__(self, linter):
|
||
|
BaseTokenChecker.__init__(self, linter)
|
||
|
self.stats = None
|
||
|
|
||
|
def open(self):
|
||
|
"""init statistics"""
|
||
|
self.stats = self.linter.add_stats(total_lines=0, code_lines=0,
|
||
|
empty_lines=0, docstring_lines=0,
|
||
|
comment_lines=0)
|
||
|
|
||
|
def process_tokens(self, tokens):
|
||
|
"""update stats"""
|
||
|
i = 0
|
||
|
tokens = list(tokens)
|
||
|
while i < len(tokens):
|
||
|
i, lines_number, line_type = get_type(tokens, i)
|
||
|
self.stats['total_lines'] += lines_number
|
||
|
self.stats[line_type] += lines_number
|
||
|
|
||
|
|
||
|
JUNK = (tokenize.NL, tokenize.INDENT, tokenize.NEWLINE, tokenize.ENDMARKER)
|
||
|
|
||
|
def get_type(tokens, start_index):
|
||
|
"""return the line type : docstring, comment, code, empty"""
|
||
|
i = start_index
|
||
|
tok_type = tokens[i][0]
|
||
|
start = tokens[i][2]
|
||
|
pos = start
|
||
|
line_type = None
|
||
|
while i < len(tokens) and tokens[i][2][0] == start[0]:
|
||
|
tok_type = tokens[i][0]
|
||
|
pos = tokens[i][3]
|
||
|
if line_type is None:
|
||
|
if tok_type == tokenize.STRING:
|
||
|
line_type = 'docstring_lines'
|
||
|
elif tok_type == tokenize.COMMENT:
|
||
|
line_type = 'comment_lines'
|
||
|
elif tok_type in JUNK:
|
||
|
pass
|
||
|
else:
|
||
|
line_type = 'code_lines'
|
||
|
i += 1
|
||
|
if line_type is None:
|
||
|
line_type = 'empty_lines'
|
||
|
elif i < len(tokens) and tokens[i][0] == tokenize.NEWLINE:
|
||
|
i += 1
|
||
|
return i, pos[0] - start[0] + 1, line_type
|
||
|
|
||
|
|
||
|
def register(linter):
|
||
|
""" required method to auto register this checker """
|
||
|
linter.register_checker(RawMetricsChecker(linter))
|