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#!/usr/bin/env python3
import re
import sys
import shutil
import os.path
import subprocess
import sysconfig
import reindent
import untabify
SRCDIR = sysconfig.get_config_var('srcdir')
def n_files_str(count):
"""Return 'N file(s)' with the proper plurality on 'file'."""
return "{} file{}".format(count, "s" if count != 1 else "")
def status(message, modal=False, info=None):
"""Decorator to output status info to stdout."""
def decorated_fxn(fxn):
def call_fxn(*args, **kwargs):
sys.stdout.write(message + ' ... ')
sys.stdout.flush()
result = fxn(*args, **kwargs)
if not modal and not info:
print("done")
elif info:
print(info(result))
else:
print("yes" if result else "NO")
return result
return call_fxn
return decorated_fxn
def mq_patches_applied():
"""Check if there are any applied MQ patches."""
cmd = 'hg qapplied'
with subprocess.Popen(cmd.split(),
stdout=subprocess.PIPE,
stderr=subprocess.PIPE) as st:
bstdout, _ = st.communicate()
return st.returncode == 0 and bstdout
@status("Getting the list of files that have been added/changed",
info=lambda x: n_files_str(len(x)))
def changed_files():
"""Get the list of changed or added files from Mercurial."""
if not os.path.isdir(os.path.join(SRCDIR, '.hg')):
sys.exit('need a checkout to get modified files')
cmd = 'hg status --added --modified --no-status'
if mq_patches_applied():
cmd += ' --rev qparent'
with subprocess.Popen(cmd.split(), stdout=subprocess.PIPE) as st:
return [x.decode().rstrip() for x in st.stdout]
def report_modified_files(file_paths):
count = len(file_paths)
if count == 0:
return n_files_str(count)
else:
lines = ["{}:".format(n_files_str(count))]
for path in file_paths:
lines.append(" {}".format(path))
return "\n".join(lines)
@status("Fixing whitespace", info=report_modified_files)
def normalize_whitespace(file_paths):
"""Make sure that the whitespace for .py files have been normalized."""
reindent.makebackup = False # No need to create backups.
fixed = [path for path in file_paths if path.endswith('.py') and
reindent.check(os.path.join(SRCDIR, path))]
return fixed
@status("Fixing C file whitespace", info=report_modified_files)
def normalize_c_whitespace(file_paths):
"""Report if any C files """
fixed = []
for path in file_paths:
abspath = os.path.join(SRCDIR, path)
with open(abspath, 'r') as f:
if '\t' not in f.read():
continue
untabify.process(abspath, 8, verbose=False)
fixed.append(path)
return fixed
ws_re = re.compile(br'\s+(\r?\n)$')
@status("Fixing docs whitespace", info=report_modified_files)
def normalize_docs_whitespace(file_paths):
fixed = []
for path in file_paths:
abspath = os.path.join(SRCDIR, path)
try:
with open(abspath, 'rb') as f:
lines = f.readlines()
new_lines = [ws_re.sub(br'\1', line) for line in lines]
if new_lines != lines:
shutil.copyfile(abspath, abspath + '.bak')
with open(abspath, 'wb') as f:
f.writelines(new_lines)
fixed.append(path)
except Exception as err:
print('Cannot fix %s: %s' % (path, err))
return fixed
@status("Docs modified", modal=True)
def docs_modified(file_paths):
"""Report if any file in the Doc directory has been changed."""
return bool(file_paths)
@status("Misc/ACKS updated", modal=True)
def credit_given(file_paths):
"""Check if Misc/ACKS has been changed."""
return os.path.join('Misc', 'ACKS') in file_paths
@status("Misc/NEWS updated", modal=True)
def reported_news(file_paths):
"""Check if Misc/NEWS has been changed."""
return os.path.join('Misc', 'NEWS') in file_paths
@status("configure regenerated", modal=True, info=str)
def regenerated_configure(file_paths):
"""Check if configure has been regenerated."""
if 'configure.ac' in file_paths:
return "yes" if 'configure' in file_paths else "no"
else:
return "not needed"
@status("pyconfig.h.in regenerated", modal=True, info=str)
def regenerated_pyconfig_h_in(file_paths):
"""Check if pyconfig.h.in has been regenerated."""
if 'configure.ac' in file_paths:
return "yes" if 'pyconfig.h.in' in file_paths else "no"
else:
return "not needed"
def main():
file_paths = changed_files()
python_files = [fn for fn in file_paths if fn.endswith('.py')]
c_files = [fn for fn in file_paths if fn.endswith(('.c', '.h'))]
doc_files = [fn for fn in file_paths if fn.startswith('Doc') and
fn.endswith(('.rst', '.inc'))]
misc_files = {os.path.join('Misc', 'ACKS'), os.path.join('Misc', 'NEWS')}\
& set(file_paths)
# PEP 8 whitespace rules enforcement.
normalize_whitespace(python_files)
# C rules enforcement.
normalize_c_whitespace(c_files)
# Doc whitespace enforcement.
normalize_docs_whitespace(doc_files)
# Docs updated.
docs_modified(doc_files)
# Misc/ACKS changed.
credit_given(misc_files)
# Misc/NEWS changed.
reported_news(misc_files)
# Regenerated configure, if necessary.
regenerated_configure(file_paths)
# Regenerated pyconfig.h.in, if necessary.
regenerated_pyconfig_h_in(file_paths)
# Test suite run and passed.
if python_files or c_files:
end = " and check for refleaks?" if c_files else "?"
print()
print("Did you run the test suite" + end)
if __name__ == '__main__':
main()
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