django1/django/contrib/admin/bin/compress.py

68 lines
2.2 KiB
Python

#!/usr/bin/env python
import argparse
import subprocess
import sys
from pathlib import Path
try:
import closure
except ImportError:
closure_compiler = None
else:
closure_compiler = closure.get_jar_filename()
js_path = Path(__file__).parents[1] / 'static' / 'admin' / 'js'
def main():
description = """With no file paths given this script will automatically
compress all jQuery-based files of the admin app. Requires the Google Closure
Compiler library and Java version 6 or later."""
parser = argparse.ArgumentParser(description=description)
parser.add_argument('file', nargs='*')
parser.add_argument(
"-c", dest="compiler", default="~/bin/compiler.jar",
help="path to Closure Compiler jar file",
)
parser.add_argument("-v", "--verbose", action="store_true", dest="verbose")
parser.add_argument("-q", "--quiet", action="store_false", dest="verbose")
options = parser.parse_args()
compiler = Path(closure_compiler or options.compiler).expanduser()
if not compiler.exists():
sys.exit(
"Google Closure compiler jar file %s not found. Please use the -c "
"option to specify the path." % compiler
)
if not options.file:
if options.verbose:
sys.stdout.write("No filenames given; defaulting to admin scripts\n")
files = [
js_path / f
for f in ["actions.js", "collapse.js", "inlines.js", "prepopulate.js"]
]
else:
files = [Path(f) for f in options.file]
for file_path in files:
to_compress = file_path.expanduser()
if to_compress.exists():
to_compress_min = to_compress.with_suffix('.min.js')
cmd = [
'java',
'-jar', str(compiler),
'--rewrite_polyfills=false',
'--js', str(to_compress),
'--js_output_file', str(to_compress_min),
]
if options.verbose:
sys.stdout.write("Running: %s\n" % ' '.join(cmd))
subprocess.run(cmd)
else:
sys.stdout.write("File %s not found. Sure it exists?\n" % to_compress)
if __name__ == '__main__':
main()