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123 lines
3.9 KiB
Python
123 lines
3.9 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright (c) 2007, 2010, 2013, 2015 LOGILAB S.A. (Paris, FRANCE) <contact@logilab.fr>
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# Copyright (c) 2013 Google, Inc.
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# Copyright (c) 2014 Arun Persaud <arun@nubati.net>
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# Copyright (c) 2015-2018, 2020 Claudiu Popa <pcmanticore@gmail.com>
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# Copyright (c) 2015 Mike Frysinger <vapier@gentoo.org>
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# Copyright (c) 2015 Ionel Cristian Maries <contact@ionelmc.ro>
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# Copyright (c) 2016 Glenn Matthews <glenn@e-dad.net>
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# Copyright (c) 2018 ssolanki <sushobhitsolanki@gmail.com>
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# Copyright (c) 2019 Pierre Sassoulas <pierre.sassoulas@gmail.com>
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# Copyright (c) 2020 谭九鼎 <109224573@qq.com>
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# Licensed under the GPL: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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# For details: https://github.com/PyCQA/pylint/blob/master/COPYING
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""" Copyright (c) 2003-2010 LOGILAB S.A. (Paris, FRANCE).
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https://www.logilab.fr/ -- mailto:contact@logilab.fr
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Raw metrics checker
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"""
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import tokenize
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from typing import Any
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from pylint.checkers import BaseTokenChecker
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from pylint.exceptions import EmptyReportError
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from pylint.interfaces import ITokenChecker
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from pylint.reporters.ureports.nodes import Table
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def report_raw_stats(sect, stats, _):
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"""calculate percentage of code / doc / comment / empty
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"""
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total_lines = stats["total_lines"]
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if not total_lines:
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raise EmptyReportError()
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sect.description = "%s lines have been analyzed" % total_lines
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lines = ("type", "number", "%", "previous", "difference")
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for node_type in ("code", "docstring", "comment", "empty"):
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key = node_type + "_lines"
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total = stats[key]
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percent = float(total * 100) / total_lines
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lines += (node_type, str(total), "%.2f" % percent, "NC", "NC")
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sect.append(Table(children=lines, cols=5, rheaders=1))
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class RawMetricsChecker(BaseTokenChecker):
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"""does not check anything but gives some raw metrics :
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* total number of lines
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* total number of code lines
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* total number of docstring lines
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* total number of comments lines
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* total number of empty lines
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"""
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__implements__ = (ITokenChecker,)
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# configuration section name
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name = "metrics"
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# configuration options
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options = ()
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# messages
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msgs = {} # type: Any
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# reports
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reports = (("RP0701", "Raw metrics", report_raw_stats),)
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def __init__(self, linter):
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BaseTokenChecker.__init__(self, linter)
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self.stats = None
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def open(self):
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"""init statistics"""
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self.stats = self.linter.add_stats(
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total_lines=0,
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code_lines=0,
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empty_lines=0,
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docstring_lines=0,
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comment_lines=0,
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)
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def process_tokens(self, tokens):
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"""update stats"""
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i = 0
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tokens = list(tokens)
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while i < len(tokens):
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i, lines_number, line_type = get_type(tokens, i)
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self.stats["total_lines"] += lines_number
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self.stats[line_type] += lines_number
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JUNK = (tokenize.NL, tokenize.INDENT, tokenize.NEWLINE, tokenize.ENDMARKER)
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def get_type(tokens, start_index):
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"""return the line type : docstring, comment, code, empty"""
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i = start_index
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tok_type = tokens[i][0]
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start = tokens[i][2]
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pos = start
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line_type = None
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while i < len(tokens) and tokens[i][2][0] == start[0]:
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tok_type = tokens[i][0]
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pos = tokens[i][3]
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if line_type is None:
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if tok_type == tokenize.STRING:
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line_type = "docstring_lines"
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elif tok_type == tokenize.COMMENT:
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line_type = "comment_lines"
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elif tok_type in JUNK:
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pass
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else:
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line_type = "code_lines"
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i += 1
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if line_type is None:
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line_type = "empty_lines"
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elif i < len(tokens) and tokens[i][0] == tokenize.NEWLINE:
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i += 1
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return i, pos[0] - start[0] + 1, line_type
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def register(linter):
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""" required method to auto register this checker """
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linter.register_checker(RawMetricsChecker(linter))
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