You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
108 lines
3.0 KiB
108 lines
3.0 KiB
4 years ago
|
#!/usr/bin/env python3
|
||
|
|
|
||
|
|
"""List all those Python files that require a coding directive
|
||
|
|
|
||
|
|
Usage: findnocoding.py dir1 [dir2...]
|
||
|
|
"""
|
||
|
|
|
||
|
|
__author__ = "Oleg Broytmann, Georg Brandl"
|
||
|
|
|
||
|
|
import sys, os, re, getopt
|
||
|
|
|
||
|
|
# our pysource module finds Python source files
|
||
|
|
try:
|
||
|
|
import pysource
|
||
|
|
except ImportError:
|
||
|
|
# emulate the module with a simple os.walk
|
||
|
|
class pysource:
|
||
|
|
has_python_ext = looks_like_python = can_be_compiled = None
|
||
|
|
def walk_python_files(self, paths, *args, **kwargs):
|
||
|
|
for path in paths:
|
||
|
|
if os.path.isfile(path):
|
||
|
|
yield path.endswith(".py")
|
||
|
|
elif os.path.isdir(path):
|
||
|
|
for root, dirs, files in os.walk(path):
|
||
|
|
for filename in files:
|
||
|
|
if filename.endswith(".py"):
|
||
|
|
yield os.path.join(root, filename)
|
||
|
|
pysource = pysource()
|
||
|
|
|
||
|
|
|
||
|
|
print("The pysource module is not available; "
|
||
|
|
"no sophisticated Python source file search will be done.", file=sys.stderr)
|
||
|
|
|
||
|
|
|
||
|
|
decl_re = re.compile(rb'^[ \t\f]*#.*?coding[:=][ \t]*([-\w.]+)')
|
||
|
|
blank_re = re.compile(rb'^[ \t\f]*(?:[#\r\n]|$)')
|
||
|
|
|
||
|
|
def get_declaration(line):
|
||
|
|
match = decl_re.match(line)
|
||
|
|
if match:
|
||
|
|
return match.group(1)
|
||
|
|
return b''
|
||
|
|
|
||
|
|
def has_correct_encoding(text, codec):
|
||
|
|
try:
|
||
|
|
str(text, codec)
|
||
|
|
except UnicodeDecodeError:
|
||
|
|
return False
|
||
|
|
else:
|
||
|
|
return True
|
||
|
|
|
||
|
|
def needs_declaration(fullpath):
|
||
|
|
try:
|
||
|
|
infile = open(fullpath, 'rb')
|
||
|
|
except IOError: # Oops, the file was removed - ignore it
|
||
|
|
return None
|
||
|
|
|
||
|
|
with infile:
|
||
|
|
line1 = infile.readline()
|
||
|
|
line2 = infile.readline()
|
||
|
|
|
||
|
|
if (get_declaration(line1) or
|
||
|
|
blank_re.match(line1) and get_declaration(line2)):
|
||
|
|
# the file does have an encoding declaration, so trust it
|
||
|
|
return False
|
||
|
|
|
||
|
|
# check the whole file for non utf-8 characters
|
||
|
|
rest = infile.read()
|
||
|
|
|
||
|
|
if has_correct_encoding(line1+line2+rest, "utf-8"):
|
||
|
|
return False
|
||
|
|
|
||
|
|
return True
|
||
|
|
|
||
|
|
|
||
|
|
usage = """Usage: %s [-cd] paths...
|
||
|
|
-c: recognize Python source files trying to compile them
|
||
|
|
-d: debug output""" % sys.argv[0]
|
||
|
|
|
||
|
|
if __name__ == '__main__':
|
||
|
|
|
||
|
|
try:
|
||
|
|
opts, args = getopt.getopt(sys.argv[1:], 'cd')
|
||
|
|
except getopt.error as msg:
|
||
|
|
print(msg, file=sys.stderr)
|
||
|
|
print(usage, file=sys.stderr)
|
||
|
|
sys.exit(1)
|
||
|
|
|
||
|
|
is_python = pysource.looks_like_python
|
||
|
|
debug = False
|
||
|
|
|
||
|
|
for o, a in opts:
|
||
|
|
if o == '-c':
|
||
|
|
is_python = pysource.can_be_compiled
|
||
|
|
elif o == '-d':
|
||
|
|
debug = True
|
||
|
|
|
||
|
|
if not args:
|
||
|
|
print(usage, file=sys.stderr)
|
||
|
|
sys.exit(1)
|
||
|
|
|
||
|
|
for fullpath in pysource.walk_python_files(args, is_python):
|
||
|
|
if debug:
|
||
|
|
print("Testing for coding: %s" % fullpath)
|
||
|
|
result = needs_declaration(fullpath)
|
||
|
|
if result:
|
||
|
|
print(fullpath)
|