seitime-frappe/py/build/bundle.py

80 lines
2 KiB
Python

from minify import JavascriptMinify
class Bundle:
"""
Concatenate, compress and mix (if required) js+css files from build.json
"""
def concat(self, filelist, outfile=None):
"""
Concat css and js files into a bundle
"""
import os
from cStringIO import StringIO
from build import verbose
out_type = outfile and outfile.split('.')[-1] or 'js'
outtxt = ''
for f in filelist:
suffix = None
if ':' in f:
f, suffix = f.split(':')
print f + ' | ' + str(int(os.path.getsize(f)/1024)) + 'k'
# get data
with open(f, 'r') as infile:
# get file type
ftype = f.split('.')[-1]
data = infile.read()
# css -> js
if out_type=='js' and ftype =='css':
data = "\nwn.assets.handler.css('%s');\n" %\
data.replace("'", "\\'").replace('\n', '\\\n')
outtxt += ('\n/*\n *\t%s\n */' % f)
# append
if suffix=='concat' or out_type != 'js':
outtxt += data
else:
jsm = JavascriptMinify()
tmpin = StringIO(data)
tmpout = StringIO()
jsm.minify(tmpin, tmpout)
tmpmin = tmpout.getvalue() or ''
tmpmin.strip('\n')
outtxt += tmpmin
with open(outfile, 'w') as f:
f.write(outtxt)
print "Wrote %s - %sk" % (outfile, str(int(os.path.getsize(outfile)/1024)))
def make(self, bpath):
"""
Build (stitch + compress) the file defined in build.json
"""
import os, sys, json
from build import no_minify
# open the build.json file and read
# the dict
print "making %s ..." % bpath
with open(bpath, 'r') as bfile:
bdata = json.loads(bfile.read())
path = os.path.dirname(bpath)
for outfile in bdata:
# build the file list relative to the main folder
fl = [os.path.relpath(os.path.join(path, f), os.curdir) for f in bdata[outfile]]
# js files are minified by default unless explicitly
# mentioned in the prefix.
# some files may not work if minified (known jsmin bug)
self.concat(fl, os.path.relpath(os.path.join(path, outfile), os.curdir))