198 lines
6.8 KiB
Python
198 lines
6.8 KiB
Python
#!/usr/bin/env python3
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import argparse
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import fnmatch
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import re
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import os
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import subprocess
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import sys
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DFHACK_ROOT = os.path.normpath(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
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def load_pattern_files(paths):
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patterns = []
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for p in paths:
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with open(p) as f:
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for line in f.readlines():
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line = line.strip()
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if line and not line.startswith('#'):
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patterns.append(line)
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return patterns
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def valid_file(rel_path, check_patterns, ignore_patterns):
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return (
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any(fnmatch.fnmatch(rel_path, pattern) for pattern in check_patterns)
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and not any(fnmatch.fnmatch(rel_path, pattern) for pattern in ignore_patterns)
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)
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success = True
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def error(msg=None):
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global success
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success = False
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if msg:
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sys.stderr.write(msg + '\n')
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def format_lines(lines, total):
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if len(lines) == total - 1:
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return 'entire file'
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if not len(lines):
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# should never happen
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return 'nowhere'
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if len(lines) == 1:
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return 'line %i' % lines[0]
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s = 'lines '
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range_start = range_end = lines[0]
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for i, line in enumerate(lines):
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if line > range_end + 1:
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if range_start == range_end:
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s += ('%i, ' % range_end)
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else:
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s += ('%i-%i, ' % (range_start, range_end))
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range_start = range_end = line
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if i == len(lines) - 1:
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s += ('%i' % line)
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else:
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range_end = line
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if i == len(lines) - 1:
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s += ('%i-%i, ' % (range_start, range_end))
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return s.rstrip(' ').rstrip(',')
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class LinterError(Exception):
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def __init__(self, message, lines, total_lines):
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self.message = message
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self.lines = lines
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self.total_lines = total_lines
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def __str__(self):
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return '%s: %s' % (self.message, format_lines(self.lines, self.total_lines))
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def github_actions_workflow_command(self, filename):
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first_line = self.lines[0] if self.lines else 1
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return '::error file=%s,line=%i::%s' % (filename, first_line, self)
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class Linter(object):
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ignore = False
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def check(self, lines):
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failures = []
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for i, line in enumerate(lines):
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if not self.check_line(line):
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failures.append(i + 1)
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if len(failures):
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raise LinterError(self.msg, failures, len(lines))
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def fix(self, lines):
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for i in range(len(lines)):
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lines[i] = self.fix_line(lines[i])
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class NewlineLinter(Linter):
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msg = 'Contains DOS-style newlines'
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# git supports newline conversion. Catch in CI, ignore on Windows.
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ignore = os.linesep != '\n' and not os.environ.get('CI')
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def check_line(self, line):
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return '\r' not in line
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def fix_line(self, line):
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return line.replace('\r', '')
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class TrailingWhitespaceLinter(Linter):
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msg = 'Contains trailing whitespace'
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def check_line(self, line):
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line = line.replace('\r', '').replace('\n', '')
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return not line.strip() or line == line.rstrip('\t ')
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def fix_line(self, line):
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return line.rstrip('\t ')
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class TabLinter(Linter):
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msg = 'Contains tabs'
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def check_line(self, line):
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return '\t' not in line
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def fix_line(self, line):
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return line.replace('\t', ' ')
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linters = [cls() for cls in Linter.__subclasses__() if not cls.ignore]
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def walk_all(root_path):
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for cur, dirnames, filenames in os.walk(root_path):
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for filename in filenames:
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full_path = os.path.join(cur, filename)
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yield full_path
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def walk_git_files(root_path):
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p = subprocess.Popen(['git', '-C', root_path, 'ls-files', root_path], stdout=subprocess.PIPE)
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for line in p.stdout.readlines():
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path = line.decode('utf-8').strip()
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full_path = os.path.join(root_path, path)
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yield full_path
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if p.wait() != 0:
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raise RuntimeError('git exited with %r' % p.returncode)
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def main(args):
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root_path = os.path.abspath(args.path)
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if not os.path.exists(args.path):
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print('Nonexistent path: %s' % root_path)
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sys.exit(2)
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check_patterns = load_pattern_files(args.check_patterns)
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ignore_patterns = load_pattern_files(args.ignore_patterns)
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walk_iter = walk_all
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if args.git_only:
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walk_iter = walk_git_files
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for full_path in walk_iter(root_path):
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rel_path = full_path.replace(root_path, '').replace('\\', '/').lstrip('/')
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if not valid_file(rel_path, check_patterns, ignore_patterns):
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continue
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if args.verbose:
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print('Checking:', rel_path)
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lines = []
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with open(full_path, 'rb') as f:
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lines = f.read().split(b'\n')
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for i, line in enumerate(lines):
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try:
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lines[i] = line.decode('utf-8')
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except UnicodeDecodeError:
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msg_params = (rel_path, i + 1, 'Invalid UTF-8 (other errors will be ignored)')
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error('%s:%i: %s' % msg_params)
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if args.github_actions:
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print('::error file=%s,line=%i::%s' % msg_params)
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lines[i] = ''
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for linter in linters:
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try:
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linter.check(lines)
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except LinterError as e:
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error('%s: %s' % (rel_path, e))
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if args.github_actions:
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print(e.github_actions_workflow_command(rel_path))
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if args.fix:
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linter.fix(lines)
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contents = '\n'.join(lines)
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with open(full_path, 'wb') as f:
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f.write(contents.encode('utf-8'))
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if success:
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print('All linters completed successfully')
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sys.exit(0)
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else:
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sys.exit(1)
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if __name__ == '__main__':
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parser = argparse.ArgumentParser()
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parser.add_argument('path', nargs='?', default='.',
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help='Path to scan (default: current directory)')
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parser.add_argument('--fix', action='store_true',
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help='Attempt to modify files in-place to fix identified issues')
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parser.add_argument('--git-only', action='store_true',
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help='Only check files tracked by git')
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parser.add_argument('--github-actions', action='store_true',
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help='Enable GitHub Actions workflow command output')
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parser.add_argument('-v', '--verbose', action='store_true',
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help='Log files as they are checked')
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parser.add_argument('--check-patterns', action='append',
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default=[os.path.join(DFHACK_ROOT, 'ci', 'lint-check.txt')],
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help='File(s) containing filename patterns to check')
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parser.add_argument('--ignore-patterns', action='append',
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default=[os.path.join(DFHACK_ROOT, 'ci', 'lint-ignore.txt')],
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help='File(s) containing filename patterns to ignore')
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args = parser.parse_args()
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main(args)
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