mirror of
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ce9806215b
This patch changes a few of the scripts to have __name__=='__main__' clauses so that they are importable without running. Also fixes the syntax errors revealed by the tests.
106 lines
2.8 KiB
Python
Executable file
106 lines
2.8 KiB
Python
Executable file
#!/usr/bin/env python3
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"""List all those Python files that require a coding directive
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Usage: findnocoding.py dir1 [dir2...]
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"""
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__author__ = "Oleg Broytmann, Georg Brandl"
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import sys, os, re, getopt
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# our pysource module finds Python source files
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try:
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import pysource
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except ImportError:
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# emulate the module with a simple os.walk
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class pysource:
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has_python_ext = looks_like_python = can_be_compiled = None
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def walk_python_files(self, paths, *args, **kwargs):
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for path in paths:
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if os.path.isfile(path):
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yield path.endswith(".py")
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elif os.path.isdir(path):
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for root, dirs, files in os.walk(path):
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for filename in files:
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if filename.endswith(".py"):
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yield os.path.join(root, filename)
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pysource = pysource()
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print("The pysource module is not available; "
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"no sophisticated Python source file search will be done.", file=sys.stderr)
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decl_re = re.compile(r"coding[=:]\s*([-\w.]+)")
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def get_declaration(line):
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match = decl_re.search(line)
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if match:
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return match.group(1)
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return ''
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def has_correct_encoding(text, codec):
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try:
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str(text, codec)
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except UnicodeDecodeError:
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return False
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else:
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return True
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def needs_declaration(fullpath):
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try:
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infile = open(fullpath)
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except IOError: # Oops, the file was removed - ignore it
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return None
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line1 = infile.readline()
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line2 = infile.readline()
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if get_declaration(line1) or get_declaration(line2):
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# the file does have an encoding declaration, so trust it
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infile.close()
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return False
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# check the whole file for non utf-8 characters
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rest = infile.read()
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infile.close()
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if has_correct_encoding(line1+line2+rest, "utf-8"):
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return False
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return True
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usage = """Usage: %s [-cd] paths...
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-c: recognize Python source files trying to compile them
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-d: debug output""" % sys.argv[0]
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if __name__ == '__main__':
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try:
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opts, args = getopt.getopt(sys.argv[1:], 'cd')
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except getopt.error as msg:
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print(msg, file=sys.stderr)
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print(usage, file=sys.stderr)
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sys.exit(1)
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is_python = pysource.looks_like_python
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debug = False
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for o, a in opts:
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if o == '-c':
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is_python = pysource.can_be_compiled
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elif o == '-d':
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debug = True
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if not args:
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print(usage, file=sys.stderr)
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sys.exit(1)
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for fullpath in pysource.walk_python_files(args, is_python):
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if debug:
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print("Testing for coding: %s" % fullpath)
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result = needs_declaration(fullpath)
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if result:
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print(fullpath)
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