89 lines
3 KiB
Python
89 lines
3 KiB
Python
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#!/usr/bin/env python
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import sys, re
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def cssMinify(css, saveFileName):
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# remove comments - this will break a lot of hacks :-P
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css = re.sub( r'\s*/\*\s*\*/', "$$HACK1$$", css ) # preserve IE<6 comment hack
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css = re.sub( r'/\*[\s\S]*?\*/', "", css )
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css = css.replace( "$$HACK1$$", '/**/' ) # preserve IE<6 comment hack
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# url() doesn't need quotes
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css = re.sub( r'url\((["\'])([^)]*)\1\)', r'url(\2)', css )
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# spaces may be safely collapsed as generated content will collapse them anyway
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css = re.sub( r'\s+', ' ', css )
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# shorten collapsable colors: #aabbcc to #abc
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css = re.sub( r'#([0-9a-f])\1([0-9a-f])\2([0-9a-f])\3(\s|;)', r'#\1\2\3\4', css )
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# fragment values can loose zeros
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css = re.sub( r':\s*0(\.\d+([cm]m|e[mx]|in|p[ctx]))\s*;', r':\1;', css )
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for rule in re.findall( r'([^{]+){([^}]*)}', css ):
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# we don't need spaces around operators
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selectors = [re.sub( r'(?<=[\[\(>+=])\s+|\s+(?=[=~^$*|>+\]\)])', r'', selector.strip() ) for selector in rule[0].split( ',' )]
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# order is important, but we still want to discard repetitions
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properties = {}
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porder = []
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for prop in re.findall( '(.*?):(.*?)(;|$)', rule[1] ):
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key = prop[0].strip().lower()
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if key not in porder: porder.append( key )
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properties[ key ] = prop[1].strip()
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# output rule if it contains any declarations
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if properties:
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f = open(saveFileName,'a')
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f.write( "%s{%s}" % ( ','.join( selectors ), ''.join(['%s:%s;' % (key, properties[key]) for key in porder])[:-1] ) )
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f.close()
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def fileMin(ifile):
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returnVal = ''
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ifSplit = ifile.split('.')
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for n, filePart in enumerate(ifSplit):
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if n == len(ifSplit)-1:
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returnVal = returnVal + "min."
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returnVal = returnVal + filePart
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if n != len(ifSplit)-1:
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returnVal =returnVal + "."
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return returnVal
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css = ""
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files = []
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saveFileName = "style.min.css"
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flag = False
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sepFlag = False
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for n, i in enumerate(sys.argv):
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if n == 0:
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pass
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elif i in ("-h", "--help"):
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print("Add CSS files space separated to be combined and minified. \n \
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\t-h, --help \n \
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\t\tDisplay this help message. \n \
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\t-o, --output \n \
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\t\tDeclare name of output CSS file. \n \
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\t-s, --separate \n \
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\t\tOutput each individual file as min. i.e.: \n \
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\t\tstyle.css will become style.min.css")
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break
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elif i in ("-o", "--output"):
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flag = True
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elif i in ("-s", "--separate"):
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sepFlag = True
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elif flag:
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saveFileName = i
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flag = False
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elif sepFlag:
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files.append(i)
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else:
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css += open( i, 'r' ).read()
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if sepFlag:
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for cssFile in files:
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css = open(cssFile, 'r').read()
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cssFile = fileMin(cssFile)
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cssMinify(css, cssFile)
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else:
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cssMinify(css, saveFileName)
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