Better caching mechanics

botanjs/classmap.py

@@ -1,11 +1,10 @@
 #!/usr/bin/env python3
 
-import os;
-import re;
-import sys;
+import os, re, sys
 
 from xml.dom import minidom
 from collections import defaultdict
+from botanjs.utils import checksum
 
 RegEx_N = re.compile( r"""
 		.*
@@ -136,7 +135,7 @@ class ClassMap:
 
 		return True;
 
-	def drawMap( self, ns, ci, ce, cf ):
+	def drawMap( self, ns, ci, ce, cf, chksum ):
 		nsNode = self.getNode( ns )
 
 		# Source every:
@@ -150,6 +149,8 @@ class ClassMap:
 
 		if not srcEvery:
 			nsNode.setAttribute( "src", cf )
+			nsNode.setAttribute( "js", chksum["js"] )
+			nsNode.setAttribute( "css", chksum["css"] )
 
 		for ex in ce:
 			_t = eDef[ ex[0] ]
@@ -164,6 +165,8 @@ class ClassMap:
 						cNode.appendChild( impNode )
 
 				cNode.setAttribute( "src", cf )
+				cNode.setAttribute( "js", chksum["js"] )
+				cNode.setAttribute( "css", chksum["css"] )
 
 		# the file dose not export classes
 		# Hence it import for itself
@@ -187,7 +190,12 @@ class ClassMap:
 					continue
 
 				ns, ci, ce = classMeta( classFile )
+
+				chksum = {}
+				chksum[ "js" ] = checksum( classFile )
+				chksum[ "css" ] = checksum( classFile[:-2] + "css" )
+
 				classFile = classFile.replace( self.R + os.path.sep, "" )
-				self.drawMap( ns, ci, ce, classFile )
+				self.drawMap( ns, ci, ce, classFile, chksum )
 		return self.DOM.toxml()
 

botanjs/compressor/closure.py

@@ -4,11 +4,11 @@ import os
 from sys import platform
 from tempfile import NamedTemporaryFile
 from botanjs.config import Config as config
+from botanjs.service.jwork import log
 
 COMPILER = config[ "BotanJS" ][ "ClosureCompiler" ]
 
-if not os.path.isfile( COMPILER ):
-	raise Exception( "Compiler not found" )
+AVAILABLE = os.path.isfile( COMPILER )
 
 
 COMPILER_OPTIONS = [
@@ -42,6 +42,11 @@ class Wrapper:
 			break
 
 	def compress( self, loc ):
+
+		if not AVAILABLE:
+			log.error( "Compiler not found" )
+			return
+
 		content = ""
 		with open( loc, "rb" ) as f:
 			content = f.read()

botanjs/dummy.py

@@ -1,7 +1,13 @@
 #!/usr/bin/env python3
 
 class log:
-	def info( self, *args ):
+
+	@staticmethod
+	def info( *args ):
+		print( *args )
+
+	@staticmethod
+	def error( *args ):
 		print( *args )
 
 class dummyTask( object ):

botanjs/service/jclassresv.py

@@ -30,7 +30,11 @@ class Resolver:
 
 	def resource( self, elem ):
 		if "src" in elem.attrib:
-			return elem.attrib[ "src" ]
+			return {
+				"src": elem.attrib[ "src" ]
+				, "js": elem.attrib[ "js" ]
+				, "css": elem.attrib[ "css" ]
+			}
 
 		parent = self.parentMap[ elem ]
 
@@ -153,9 +157,10 @@ class BotanClassResolver:
 			if src not in classFiles:
 				classFiles.append( src )
 
-	def cssLookup( self, jsList, cssList ):
+	def cssLookup( self, classList, cssList ):
 
-		for f in jsList:
+		for cdef in classList:
+			f = cdef[ "src" ]
 			possibleList = []
 
 			cssFile = os.path.splitext( f )[0] + ".css"
@@ -183,7 +188,7 @@ class BotanClassResolver:
 		if self.CR == None:
 			return None
 
-		md5 = hashlib.md5( bytearray( "".join( fileList ), "utf-8" ) ).hexdigest()
+		md5 = hashlib.md5( bytearray( "|".join( x[mode] for x in fileList ), "utf-8" ) ).hexdigest()
 
 		cName[0] = oFHash = md5 + "." + mode
 		cFHash = md5 + ".c." + mode
@@ -193,19 +198,10 @@ class BotanClassResolver:
 		# Compressed file
 		cFile = os.path.join( self.CR, cFHash )
 
-		dates = list(
-			os.path.getmtime( os.path.join( self.R, x ) )
-			if os.path.exists( os.path.join( self.R, x ) ) else -1
-			for x in fileList
-		)
-
-		# Root file date
-		dates.append( os.path.getmtime( os.path.join( self.R, "_this.js" ) ) );
-
-		if self.flagCompress and self.useCache( cFile, dates ):
+		if self.flagCompress and self.useCache( cFile ):
 			return self.BotanCache( cFile, cFHash, self.returnDynamic )
 
-		elif self.useCache( oFile, dates ):
+		elif self.useCache( oFile ):
 			self.JWork.saveCache(
 				oFile
 				# Content is None to initiate a compression
@@ -216,17 +212,8 @@ class BotanClassResolver:
 
 			return self.BotanCache( oFile, oFHash, False )
 
-	def useCache( self, f, dList ):
-		if not os.path.exists( f ):
-			return False
-
-		t = os.path.getmtime( f )
-
-		for i in dList:
-			if t < i:
-				return False
-
-		return True
+	def useCache( self, f ):
+		return os.path.exists( f )
 
 	def compileJs( self, cList, xList ):
 		md5 = [ None ]
@@ -244,6 +231,7 @@ class BotanClassResolver:
 
 
 		for f in cList:
+			f = f[ "src" ]
 			path = (
 				os.path.splitext( f )[0]
 					.replace( PY_SEP, "." )
@@ -285,8 +273,8 @@ class BotanClassResolver:
 		if cacheFile != None:
 			return cacheFile;
 
-		# The root file
-		outputCss = self.BotanFile( "_this.css" )
+		struct = "/* @ */"
+		outputCss = struct + self.BotanFile( "_this.css" )
 
 		for f in self.cleanList( cList ):
 			outputCss += self.BotanFile( f )

botanjs/service/jwork.py

@@ -1,7 +1,5 @@
 #!/usr/bin/env python3
 import os
-from botanjs.compressor.closure import Wrapper as ClosureWrapper
-from botanjs.compressor.yui import Wrapper as YUIWrapper
 from botanjs.classmap import ClassMap
 
 CeleryExists = True 
@@ -38,6 +36,7 @@ class JWork:
 
 	@app.task()
 	def compressJs( md5, externs ):
+		from botanjs.compressor.closure import Wrapper as ClosureWrapper
 		log.info( "Compress js: " + md5 )
 		w = ClosureWrapper()
 		w.scanExterns( externs )
@@ -45,6 +44,7 @@ class JWork:
 
 	@app.task()
 	def compressCss( md5 ):
+		from botanjs.compressor.yui import Wrapper as YUIWrapper
 		log.info( "Compress css: " + md5 )
 		w = YUIWrapper()
 		w.compress( md5 )

botanjs/utils.py

@@ -0,0 +1,12 @@
+from functools import lru_cache
+from zlib import adler32 as _HashFunc
+HashFunc = lambda v: hex( _HashFunc( v ) )[2:]
+
+
+@lru_cache( maxsize = 1024 )
+def checksum( file_path ):
+	try:
+		with open( file_path, "rb" ) as f:
+			return HashFunc( f.read() )
+	except FileNotFoundError:
+		return HashFunc( b"" )

tests.py

@@ -0,0 +1,47 @@
+#!env/bin/python
+import os, sys
+sys.path.append( os.path.abspath( "." ) )
+
+from botanjs.service.jwork import app, JWork
+from botanjs.config import Config as config
+
+SiteRoot = os.path.abspath( "." )
+
+# Setting the SiteRoot for config
+config["Paths"]["SiteRoot"] = SiteRoot
+
+jsCache = config["Paths"]["Cache"]
+jsRoot = config["BotanJS"]["SrcDir"]
+
+bmap = os.path.join( jsCache, "botanjs", "bmap.xml" )
+
+app.conf.update( broker_url = config["BotanJS"]["CeleryBroker"] )
+
+JWork.buildClassMap.delay( jsRoot, bmap )
+
+from botanjs.service.jclassresv import BotanClassResolver as JCResv
+srvHandler = JCResv( JWork, jsRoot, bmap, jsCache )
+
+import unittest
+
+class TestStringMethods( unittest.TestCase ):
+
+	# Run each twice to test the cache capabilities
+	def test_ojscall( self ):
+		for _ in range(0,2):
+			s = srvHandler.getAPI( "System", mode = "rjs" )
+			self.assertTrue( "BotanJS.define( \"System\" );" in s )
+
+	def test_import( self ):
+		for _ in range(0,2):
+			s = srvHandler.getAPI( "System.Policy", mode = "rjs" )
+			self.assertTrue( "BotanJS.define( \"System.Policy\" );" in s )
+			self.assertTrue( "BotanJS.define( \"System.Global\" );" in s )
+
+	def test_cssInheritance( self ):
+		for _ in range(0,2):
+			s = srvHandler.getAPI( "System", mode = "rcss" )
+			self.assertTrue( "/* @ */" in s )
+
+if __name__ == '__main__':
+	unittest.main()