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