blob: 52cc876aff46737bfd7ed986f46c1aa8d79fc564 (
plain)
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
|
#!/usr/bin/env python
# Copyright 2016 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
''' Javascript minifier using the closure compiler
This minifier strips spaces and comments out of Javascript using the closure
compiler. It takes the original Javascript on standard input, and outputs
the minified output on standard output.
Any errors or other messages from the compiler are output on standard error.
'''
import argparse
import sys
import tempfile
from compile2 import Checker
def Minify(source):
parser = argparse.ArgumentParser()
parser.add_argument("-c", "--closure_args", nargs=argparse.ZERO_OR_MORE,
help="Arguments passed directly to the Closure compiler")
args = parser.parse_args()
with tempfile.NamedTemporaryFile(suffix='.js') as t1, \
tempfile.NamedTemporaryFile(suffix='.js') as t2:
t1.write(source)
t1.seek(0)
checker = Checker()
(compile_error, compile_stderr) = checker.check(
[t1.name],
out_file=t2.name,
closure_args=args.closure_args)
if compile_error:
print compile_stderr
t2.seek(0)
result = t2.read()
return result
if __name__ == '__main__':
orig_stdout = sys.stdout
result = ''
try:
sys.stdout = sys.stderr
result = Minify(sys.stdin.read())
finally:
sys.stdout = orig_stdout
print result
|
