ansible/test/sanity/code-smell/docs-build.py
Toshio Kuratomi 39b3942048 Remove left hand side slicing
Left hand side slicing is confusing and slower but maybe more memory
efficient in some circumstances.  There is one case where it adds to
code safety: when it's used to substitute a different list in place of a
slice of the original list and the original list could have been bound
to a different variable in some other code.  (The most likely case of
this is when it's a global variable and some other code might import
that variable name).

Because of the confusion factor we think it should only be used for the
safety case or where it's been benchmarked and shown to have some sort
of documentatble improvement.  At the moment, only one piece of code
falls into those categories so this PR removes all the other instances
of left hand side slicing.
2020-05-06 09:56:40 -07:00

135 lines
4.4 KiB
Python
Executable file

#!/usr/bin/env python
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
import os
import re
import subprocess
import sys
def main():
base_dir = os.getcwd() + os.path.sep
docs_dir = os.path.abspath('docs/docsite')
cmd = ['make', 'singlehtmldocs']
sphinx = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, cwd=docs_dir)
stdout, stderr = sphinx.communicate()
stdout = stdout.decode('utf-8')
stderr = stderr.decode('utf-8')
if sphinx.returncode != 0:
sys.stderr.write("Command '%s' failed with status code: %d\n" % (' '.join(cmd), sphinx.returncode))
if stdout.strip():
stdout = simplify_stdout(stdout)
sys.stderr.write("--> Standard Output\n")
sys.stderr.write("%s\n" % stdout.strip())
if stderr.strip():
sys.stderr.write("--> Standard Error\n")
sys.stderr.write("%s\n" % stderr.strip())
sys.exit(1)
with open('docs/docsite/rst_warnings', 'r') as warnings_fd:
output = warnings_fd.read().strip()
lines = output.splitlines()
known_warnings = {
'block-quote-missing-blank-line': r'^Block quote ends without a blank line; unexpected unindent.$',
'literal-block-lex-error': r'^Could not lex literal_block as "[^"]*". Highlighting skipped.$',
'duplicate-label': r'^duplicate label ',
'undefined-label': r'undefined label: ',
'unknown-document': r'unknown document: ',
'toc-tree-missing-document': r'toctree contains reference to nonexisting document ',
'reference-target-not-found': r'[^ ]* reference target not found: ',
'not-in-toc-tree': r"document isn't included in any toctree$",
'unexpected-indentation': r'^Unexpected indentation.$',
'definition-list-missing-blank-line': r'^Definition list ends without a blank line; unexpected unindent.$',
'explicit-markup-missing-blank-line': r'Explicit markup ends without a blank line; unexpected unindent.$',
'toc-tree-glob-pattern-no-match': r"^toctree glob pattern '[^']*' didn't match any documents$",
'unknown-interpreted-text-role': '^Unknown interpreted text role "[^"]*".$',
}
for line in lines:
match = re.search('^(?P<path>[^:]+):((?P<line>[0-9]+):)?((?P<column>[0-9]+):)? (?P<level>WARNING|ERROR): (?P<message>.*)$', line)
if not match:
path = 'docs/docsite/rst/index.rst'
lineno = 0
column = 0
code = 'unknown'
message = line
# surface unknown lines while filtering out known lines to avoid excessive output
print('%s:%d:%d: %s: %s' % (path, lineno, column, code, message))
continue
path = match.group('path')
lineno = int(match.group('line') or 0)
column = int(match.group('column') or 0)
level = match.group('level').lower()
message = match.group('message')
path = os.path.abspath(path)
if path.startswith(base_dir):
path = path[len(base_dir):]
if path.startswith('rst/'):
path = 'docs/docsite/' + path # fix up paths reported relative to `docs/docsite/`
if level == 'warning':
code = 'warning'
for label, pattern in known_warnings.items():
if re.search(pattern, message):
code = label
break
else:
code = 'error'
print('%s:%d:%d: %s: %s' % (path, lineno, column, code, message))
def simplify_stdout(value):
"""Simplify output by omitting earlier 'rendering: ...' messages."""
lines = value.strip().splitlines()
rendering = []
keep = []
def truncate_rendering():
"""Keep last rendering line (if any) with a message about omitted lines as needed."""
if not rendering:
return
notice = rendering[-1]
if len(rendering) > 1:
notice += ' (%d previous rendering line(s) omitted)' % (len(rendering) - 1)
keep.append(notice)
# Could change to rendering.clear() if we do not support python2
rendering[:] = []
for line in lines:
if line.startswith('rendering: '):
rendering.append(line)
continue
truncate_rendering()
keep.append(line)
truncate_rendering()
result = '\n'.join(keep)
return result
if __name__ == '__main__':
main()