def compress(data, type=TYPE_JS, level=None):
"""
Compresses a wad of data and gives it back to you.
"""
COMPRESSOR_COMMAND = common.java_command(YUICOMPRESSOR_PATH)
proc = subprocess.Popen(COMPRESSOR_COMMAND + [TYPE_SWITCH, type], stdin=subprocess.PIPE, stdout=subprocess.PIPE)
compressed_data, error = proc.communicate(data)
return compressed_data
def compress_local(out_file, input_fnames, level=DEFAULT_LEVEL, verbose=False, pretty=False):
"""
Compresses locally using closure.jar. You need to download it and create an
environment variable called CLOSURE_PATH which points to the jar.
"""
out_file = out_file or OUT_FILE
command = common.java_command(CLOSURE_PATH)
#java -jar closure.jar --js=in1.js --js=in2.js ... --js_output_file=out.js
p('Compressing %s at level %s ...' % (out_file, level), verbose)
fnames = ['--js=%s' % fn for fn in input_fnames]
outfile = '--js_output_file=%s' % out_file
complevel = ['--compilation_level=%s' % (COMPILATION_LEVELS[level])]
if pretty:
formatting = ['--formatting=PRETTY_PRINT']
else:
formatting = []
#source_map = ['--create_source_map=%s.map' % out_file, '--source_map_format=V3']
return subprocess.call(command + fnames + [outfile] + complevel + formatting)
