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
|
#!/usr/bin/python3
# © 2022 mirabilos <t.glaser@tarent.de> Ⓕ MIT
import base64
import json
import sys
_b64leader = 'sourceMappingURL=data:application/json;charset=UTF-8;base64,'
_linefmt = '//# %s%s\n'
if len(sys.argv) == 4:
donl = True
elif len(sys.argv) == 5 and sys.argv[4] == '--nonl':
# evil hack for browserify
donl = False
else:
sys.stderr.write('E: syntax: python3 smap-in.py in.js in.map out.js\n')
sys.exit(1)
with open(sys.argv[1], 'r') as f:
lines = f.readlines()
if lines[-1].startswith('//# sourceMappingURL='):
lines.pop()
elif lines[-1].startswith('/*# sourceMappingURL='):
_linefmt = '/*# %s%s */\n'
lines.pop()
with open(sys.argv[2], 'r') as f:
smap = json.load(f)
# clear "file" key as it’s inappropriate for embedded maps
smap.pop('file', None)
smap = json.dumps(smap, ensure_ascii=False, allow_nan=False,
indent=None, separators=(',', ':'))
smap = base64.b64encode(smap.encode('UTF-8')).decode('UTF-8')
while lines[-1] == '\n':
lines.pop()
if not lines[-1].endswith('\n'):
lines.append('\n')
if not donl:
# evil hack for browserify
_linefmt = _linefmt.rstrip('\n')
lines.append(_linefmt % (_b64leader, smap))
with open(sys.argv[3], 'w') as f:
f.writelines(lines)
|
