1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
#!/usr/bin/pypy3
import argparse
import collections
import itertools
import os
import subprocess
import sys
def abort(message):
print(message, file=sys.stderr)
sys.exit(1)
def package_modules(package):
"""Iterate through all python modules in an installed Debian package"""
p = subprocess.Popen(('dpkg', '-L', package), stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
files, stderr = p.communicate()
if p.returncode != 0:
abort('Unable to list files in %s. Is it installed?' % package)
for fn in files.decode('utf8').splitlines():
if fn.endswith('.py'):
if fn.startswith('/usr/share/doc/'):
continue
yield fn
def find_modules(root):
"""Iterate through all python modules in directory tree root"""
if os.path.isfile(root):
yield root
return
for dirpath, dirnames, filenames in os.walk(root):
for fn in filenames:
if fn.endswith('.py'):
yield os.path.join(dirpath, fn)
def clean_modules(modules, verbose, tag):
"""Remove all tag.pyc files for every module specified"""
clean = collections.defaultdict(list)
for module in modules:
dir_, basename = os.path.split(module)
clean[dir_].append(os.path.splitext(basename)[0])
for dir_, basenames in clean.items():
pycache = os.path.join(dir_, '__pycache__')
if not os.path.exists(pycache):
continue
empty = True
for fn in os.listdir(pycache):
parts = fn.rsplit('.', 2)
if parts[0] in basenames and parts[1] == tag and parts[2] == 'pyc':
if verbose:
print('Removing %s' % os.path.join(pycache, fn))
os.unlink(os.path.join(pycache, fn))
else:
empty = False
if empty:
if verbose:
print('Pruning %s' % pycache)
os.rmdir(pycache)
def clean_directories(directories, verbose, tag):
"""Remove the specified tag.pyc files."""
suffix = '.{}.pyc'.format(tag)
for root in directories:
for dirpath, dirnames, filenames in os.walk(root):
if dirpath.endswith('/__pycache__'):
empty = True
for file_ in filenames:
if file_.endswith(suffix):
if verbose:
print('Removing %s' % os.path.join(dirpath, file_))
os.unlink(os.path.join(dirpath, file_))
else:
empty = False
if empty:
if verbose:
print('Pruning %s' % dirpath)
os.rmdir(dirpath)
def pypy3_tag(version):
"""Return the tag used by the given PyPy3 version"""
parts = version.split('.')
if len(parts) == 3:
parts.pop()
if len(parts) != 2:
raise argparse.ArgumentTypeError('Version must be MAJOR.MINOR')
return 'pypy3-{}{}'.format(*parts)
def main():
parser = argparse.ArgumentParser(
description='Remove byte-compiled files for a package')
parser.add_argument('-p', '--package', metavar='PACKAGE',
action='append', default=[],
help='Debian package to byte-compile '
'(may be specified multiple times)')
parser.add_argument('directory', nargs='*',
help='Directory tree (or file) to byte-compile')
parser.add_argument('-v', '--verbose', action='store_true',
help='Be more verbose')
parser.add_argument('-q', '--quiet', action='store_true',
help='Be quiet')
parser.add_argument('--version', metavar='VERSION',
default='{}.{}'.format(*sys.pypy_version_info[:2]),
dest='tag', type=pypy3_tag,
help='Clean up .pyc files left by the specified '
'pypy3 version')
args = parser.parse_args()
if not (args.package or args.directory):
parser.error('Either a package or a directory must be specified')
if args.quiet and args.verbose:
parser.error('--quiet and --verbose cannot both be specified')
modules_p = set(itertools.chain(*(
package_modules(package) for package in args.package)))
modules_d = set(itertools.chain(*(
find_modules(dir_) for dir_ in args.directory)))
if args.package and args.directory:
modules = modules_d & modules_p
elif args.package:
modules = modules_p
else:
# Split files from directories, so that we can completely clean any
# specified directories.
modules = set()
directories = set()
for fn in args.directory:
if os.path.isfile(fn) and fn.endswith('.py'):
modules.add(fn)
else:
directories.add(fn)
clean_directories(directories, args.verbose, args.tag)
clean_modules(modules, args.verbose, args.tag)
if __name__ == '__main__':
main()
# vim: ft=python
|
