mirror of https://github.com/s00500/ESPUI.git
108 lines
4.4 KiB
Python
108 lines
4.4 KiB
Python
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#!/usr/bin/env python3
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from jsmin import jsmin as jsminify
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from htmlmin import minify as htmlminify
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from csscompressor import compress as cssminify
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import gzip
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import sys
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import os.path
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import argparse
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import re
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from glob import glob
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TARGET_TEMPLATE = '''const char {constant}[] PROGMEM = R"=====(
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{minidata}
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)=====";
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const uint8_t {constant}_GZIP[{gziplen}] PROGMEM = {{ {gzipdata} }};
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'''
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def parse_arguments(args=None):
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parser = argparse.ArgumentParser(
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description="Prepares ESPUI header files by minifying and gzipping JS and CSS source files.")
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parser.add_argument("--sources", "-s", dest="sources", default="../examples/gui/data",
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help="Sources directory containing CSS or JS files")
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parser.add_argument("--target", "-t", dest="target", default="../src",
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help="Target directory containing header files")
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parser.add_argument("--nostoremini", "-m", action="store_false", dest="storemini",
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help="Store intermediate minified files")
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args = parser.parse_args(args)
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return args
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def get_context(infile, outfile):
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infile = os.path.realpath(infile)
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dir, name, type = (os.path.basename(os.path.dirname(infile)), os.path.basename(infile).split(os.path.extsep)[0], os.path.basename(infile).split(os.path.extsep)[-1] )
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type = type.strip(".")
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if dir == type:
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dir = os.path.basename(os.path.dirname(os.path.dirname(infile)))
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if type == "htm":
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type = 'html'
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name = os.path.basename(name)
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indir = os.path.dirname(infile)
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if os.path.isdir(outfile):
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outdir = os.path.realpath(outfile)
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outfilename = "%s%s%s.h" % (dir, name.capitalize(), type.upper())
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outfile = os.path.realpath(os.path.sep.join([outdir, outfilename]))
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else:
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outfile = os.path.realpath(outfile)
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outdir = os.path.dirname(outfile)
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outfilename = os.path.basename(outfile)
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minifile = re.sub('\.([^.]+)$', '.min.\\1', infile) if not ".min." in infile else infile
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constant = '%s_%s' % (type.upper(), name.upper())
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return locals()
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def perform_gzip(c):
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compressed = gzip.compress(bytes(c['minidata'], 'utf-8'))
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c['gzipdata'] = ','.join([ str(b) for b in compressed ])
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c['gziplen'] = len(compressed)
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print(" GZIP data length: %s" % c['gziplen'])
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return c
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def perform_minify(c):
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with open(c['infile']) as infile:
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minifier = cssminify if c['type'] == 'css' else jsminify if c['type'] == 'js' else htmlminify
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print(" Using %s minifier" % c['type'])
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c['minidata'] = minifier(infile.read())
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return perform_gzip(c)
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def process_file(infile, outdir, storemini=True):
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print("Processing file %s" % infile)
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c = get_context(infile, outdir)
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c = perform_minify(c)
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if storemini:
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if c['infile'] == c['minifile']:
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print(" Original file is already minified, refusing to overwrite it")
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else:
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print(" Writing minified file %s" % c['minifile'])
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with open(c['minifile'], 'w+') as minifile:
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minifile.write(c['minidata'])
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with open(c['outfile'], 'w+') as outfile:
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print(" Using C constant names %s and %s_GZIP" % (c['constant'], c['constant']))
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print(" Writing C header file %s" % c['outfile'])
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outfile.write(TARGET_TEMPLATE.format(**c))
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def filenamefilter(pattern, strings):
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return filter(re.compile(pattern).search, strings)
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def process_dir(sourcedir, outdir, recursive=True, storemini=True):
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pattern = r'/*\.(css|js|htm|html)$'
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files = glob(sourcedir + "/**/*", recursive=True)+glob(sourcedir + "/*") if recursive else glob(sourcedir + "/*")
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files = filenamefilter(pattern, files)
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for f in set(files):
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if not '.min.' in f:
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process_file(f, outdir, storemini)
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elif not os.path.isfile(f.replace(".min.", ".")):
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process_file(f, outdir, storemini)
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def main(args):
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if not args.sources is None:
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if os.path.isfile(args.sources):
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print("Source %s is a file, will process one file only." % args.sources)
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process_file(args.sources, args.target, storemini = args.storemini)
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elif os.path.isdir(args.sources):
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print("Source %s is a directory, searching for files recursively..." % args.sources)
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process_dir(args.sources, args.target, recursive = True, storemini = args.storemini)
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if __name__ == "__main__" and "get_ipython" not in dir():
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main(parse_arguments())
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