111 lines
3.7 KiB
Python
111 lines
3.7 KiB
Python
|
# Licensed under the GPL: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
|
||
|
# For details: https://github.com/pylint-dev/pylint/blob/main/LICENSE
|
||
|
# Copyright (c) https://github.com/pylint-dev/pylint/blob/main/CONTRIBUTORS.txt
|
||
|
|
||
|
from __future__ import annotations
|
||
|
|
||
|
import tokenize
|
||
|
from typing import TYPE_CHECKING, Any, Literal, cast
|
||
|
|
||
|
from pylint.checkers import BaseTokenChecker
|
||
|
from pylint.reporters.ureports.nodes import Paragraph, Section, Table, Text
|
||
|
from pylint.utils import LinterStats, diff_string
|
||
|
|
||
|
if TYPE_CHECKING:
|
||
|
from pylint.lint import PyLinter
|
||
|
|
||
|
|
||
|
def report_raw_stats(
|
||
|
sect: Section,
|
||
|
stats: LinterStats,
|
||
|
old_stats: LinterStats | None,
|
||
|
) -> None:
|
||
|
"""Calculate percentage of code / doc / comment / empty."""
|
||
|
total_lines = stats.code_type_count["total"]
|
||
|
sect.insert(0, Paragraph([Text(f"{total_lines} lines have been analyzed\n")]))
|
||
|
lines = ["type", "number", "%", "previous", "difference"]
|
||
|
for node_type in ("code", "docstring", "comment", "empty"):
|
||
|
node_type = cast(Literal["code", "docstring", "comment", "empty"], node_type)
|
||
|
total = stats.code_type_count[node_type]
|
||
|
percent = float(total * 100) / total_lines if total_lines else None
|
||
|
old = old_stats.code_type_count[node_type] if old_stats else None
|
||
|
diff_str = diff_string(old, total) if old else None
|
||
|
lines += [
|
||
|
node_type,
|
||
|
str(total),
|
||
|
f"{percent:.2f}" if percent is not None else "NC",
|
||
|
str(old) if old else "NC",
|
||
|
diff_str if diff_str else "NC",
|
||
|
]
|
||
|
sect.append(Table(children=lines, cols=5, rheaders=1))
|
||
|
|
||
|
|
||
|
class RawMetricsChecker(BaseTokenChecker):
|
||
|
"""Checker that provides raw metrics instead of checking anything.
|
||
|
|
||
|
Provides:
|
||
|
* total number of lines
|
||
|
* total number of code lines
|
||
|
* total number of docstring lines
|
||
|
* total number of comments lines
|
||
|
* total number of empty lines
|
||
|
"""
|
||
|
|
||
|
# configuration section name
|
||
|
name = "metrics"
|
||
|
# configuration options
|
||
|
options = ()
|
||
|
# messages
|
||
|
msgs: Any = {}
|
||
|
# reports
|
||
|
reports = (("RP0701", "Raw metrics", report_raw_stats),)
|
||
|
|
||
|
def open(self) -> None:
|
||
|
"""Init statistics."""
|
||
|
self.linter.stats.reset_code_count()
|
||
|
|
||
|
def process_tokens(self, tokens: list[tokenize.TokenInfo]) -> None:
|
||
|
"""Update stats."""
|
||
|
i = 0
|
||
|
tokens = list(tokens)
|
||
|
while i < len(tokens):
|
||
|
i, lines_number, line_type = get_type(tokens, i)
|
||
|
self.linter.stats.code_type_count["total"] += lines_number
|
||
|
self.linter.stats.code_type_count[line_type] += lines_number
|
||
|
|
||
|
|
||
|
JUNK = (tokenize.NL, tokenize.INDENT, tokenize.NEWLINE, tokenize.ENDMARKER)
|
||
|
|
||
|
|
||
|
def get_type(
|
||
|
tokens: list[tokenize.TokenInfo], start_index: int
|
||
|
) -> tuple[int, int, Literal["code", "docstring", "comment", "empty"]]:
|
||
|
"""Return the line type : docstring, comment, code, empty."""
|
||
|
i = start_index
|
||
|
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"
|
||
|
elif tok_type == tokenize.COMMENT:
|
||
|
line_type = "comment"
|
||
|
elif tok_type in JUNK:
|
||
|
pass
|
||
|
else:
|
||
|
line_type = "code"
|
||
|
i += 1
|
||
|
if line_type is None:
|
||
|
line_type = "empty"
|
||
|
elif i < len(tokens) and tokens[i][0] == tokenize.NEWLINE:
|
||
|
i += 1
|
||
|
# Mypy fails to infer the literal of line_type
|
||
|
return i, pos[0] - start[0] + 1, line_type # type: ignore[return-value]
|
||
|
|
||
|
|
||
|
def register(linter: PyLinter) -> None:
|
||
|
linter.register_checker(RawMetricsChecker(linter))
|