136 lines
4.3 KiB
Python
136 lines
4.3 KiB
Python
#!/usr/bin/env python3
|
|
#
|
|
# Copyright (c) 2017-2022 The Moneyrocket Core developers
|
|
# Distributed under the MIT software license, see the accompanying
|
|
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
|
#
|
|
# Check for new lines in diff that introduce trailing whitespace or
|
|
# tab characters instead of spaces.
|
|
|
|
# We can't run this check unless we know the commit range for the PR.
|
|
|
|
import argparse
|
|
import os
|
|
import re
|
|
import sys
|
|
|
|
from subprocess import check_output
|
|
|
|
EXCLUDED_DIRS = ["depends/patches/",
|
|
"contrib/guix/patches/",
|
|
"src/leveldb/",
|
|
"src/crc32c/",
|
|
"src/secp256k1/",
|
|
"src/minisketch/",
|
|
"doc/release-notes/",
|
|
"src/qt/locale"]
|
|
|
|
def parse_args():
|
|
"""Parse command line arguments."""
|
|
parser = argparse.ArgumentParser(
|
|
description="""
|
|
Check for new lines in diff that introduce trailing whitespace
|
|
or tab characters instead of spaces in unstaged changes, the
|
|
previous n commits, or a commit-range.
|
|
""",
|
|
epilog=f"""
|
|
You can manually set the commit-range with the COMMIT_RANGE
|
|
environment variable (e.g. "COMMIT_RANGE='47ba2c3...ee50c9e'
|
|
{sys.argv[0]}"). Defaults to current merge base when neither
|
|
prev-commits nor the environment variable is set.
|
|
""")
|
|
|
|
parser.add_argument("--prev-commits", "-p", required=False, help="The previous n commits to check")
|
|
|
|
return parser.parse_args()
|
|
|
|
|
|
def report_diff(selection):
|
|
filename = ""
|
|
seen = False
|
|
seenln = False
|
|
|
|
print("The following changes were suspected:")
|
|
|
|
for line in selection:
|
|
if re.match(r"^diff", line):
|
|
filename = line
|
|
seen = False
|
|
elif re.match(r"^@@", line):
|
|
linenumber = line
|
|
seenln = False
|
|
else:
|
|
if not seen:
|
|
# The first time a file is seen with trailing whitespace or a tab character, we print the
|
|
# filename (preceded by a newline).
|
|
print("")
|
|
print(filename)
|
|
seen = True
|
|
if not seenln:
|
|
print(linenumber)
|
|
seenln = True
|
|
print(line)
|
|
|
|
|
|
def get_diff(commit_range, check_only_code):
|
|
exclude_args = [":(exclude)" + dir for dir in EXCLUDED_DIRS]
|
|
|
|
if check_only_code:
|
|
what_files = ["*.cpp", "*.h", "*.md", "*.py", "*.sh"]
|
|
else:
|
|
what_files = ["."]
|
|
|
|
diff = check_output(["git", "diff", "-U0", commit_range, "--"] + what_files + exclude_args, text=True, encoding="utf8")
|
|
|
|
return diff
|
|
|
|
|
|
def main():
|
|
args = parse_args()
|
|
|
|
if not os.getenv("COMMIT_RANGE"):
|
|
if args.prev_commits:
|
|
commit_range = "HEAD~" + args.prev_commits + "...HEAD"
|
|
else:
|
|
# This assumes that the target branch of the pull request will be master.
|
|
merge_base = check_output(["git", "merge-base", "HEAD", "master"], text=True, encoding="utf8").rstrip("\n")
|
|
commit_range = merge_base + "..HEAD"
|
|
else:
|
|
commit_range = os.getenv("COMMIT_RANGE")
|
|
if commit_range == "SKIP_EMPTY_NOT_A_PR":
|
|
sys.exit(0)
|
|
|
|
whitespace_selection = []
|
|
tab_selection = []
|
|
|
|
# Check if trailing whitespace was found in the diff.
|
|
for line in get_diff(commit_range, check_only_code=False).splitlines():
|
|
if re.match(r"^(diff --git|\@@|^\+.*\s+$)", line):
|
|
whitespace_selection.append(line)
|
|
|
|
whitespace_additions = [i for i in whitespace_selection if i.startswith("+")]
|
|
|
|
# Check if tab characters were found in the diff.
|
|
for line in get_diff(commit_range, check_only_code=True).splitlines():
|
|
if re.match(r"^(diff --git|\@@|^\+.*\t)", line):
|
|
tab_selection.append(line)
|
|
|
|
tab_additions = [i for i in tab_selection if i.startswith("+")]
|
|
|
|
ret = 0
|
|
|
|
if len(whitespace_additions) > 0:
|
|
print("This diff appears to have added new lines with trailing whitespace.")
|
|
report_diff(whitespace_selection)
|
|
ret = 1
|
|
|
|
if len(tab_additions) > 0:
|
|
print("This diff appears to have added new lines with tab characters instead of spaces.")
|
|
report_diff(tab_selection)
|
|
ret = 1
|
|
|
|
sys.exit(ret)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|