Some python tweaks to speed glsa-check

svn path=/trunk/gentoolkit/; revision=646

1 files changed, 12 insertions, 25 deletions

diff --git a/pym/gentoolkit/glsa/__init__.py b/pym/gentoolkit/glsa/__init__.py
index b325bd5..cc80517 100644
--- a/pym/gentoolkit/glsa/__init__.py
+++ b/pym/gentoolkit/glsa/__init__.py
@@ -18,6 +18,7 @@ import sys
 import urllib
 import codecs
 import re
+import operator
 import xml.dom.minidom
 from StringIO import StringIO
 
@@ -153,7 +154,7 @@ def get_glsa_list(repository, myconfig):
 	
 	for f in dirlist:
 		try:
-			if f[:len(prefix)] == prefix:
+			if f[:len(prefix)] == prefix and f[-1*len(suffix):] == suffix:
 				rValue.append(f[len(prefix):-1*len(suffix)])
 		except IndexError:
 			pass
@@ -168,13 +169,11 @@ def getListElements(listnode):
 	@rtype:		List of Strings
 	@return:	a list that contains the value of the <li> elements
 	"""
-	rValue = []
 	if not listnode.nodeName in ["ul", "ol"]:
 		raise GlsaFormatException("Invalid function call: listnode is not <ul> or <ol>")
-	for li in listnode.childNodes:
-		if li.nodeType != xml.dom.Node.ELEMENT_NODE:
-			continue
-		rValue.append(getText(li, format="strip"))
+	rValue = [getText(li, format="strip") \
+		for li in listnode.childNodes \
+		if li.nodeType == xml.dom.Node.ELEMENT_NODE]
 	return rValue
 
 def getText(node, format, textfd = None):
@@ -262,9 +261,8 @@ def getMultiTagsText(rootnode, tagname, format):
 	@rtype:		List of Strings
 	@return:	a list containing the text of all I{tagname} childnodes
 	"""
-	rValue = []
-	for e in rootnode.getElementsByTagName(tagname):
-		rValue.append(getText(e, format))
+	rValue = [getText(e, format) \
+		for e in rootnode.getElementsByTagName(tagname)]
 	return rValue
 
 def makeAtom(pkgname, versionNode):
@@ -396,13 +394,8 @@ def getMinUpgrade(vulnerableList, unaffectedList, minimize=True):
 				the installed version.
 	"""
 	rValue = None
-	v_installed = []
-	u_installed = []
-	for v in vulnerableList:
-		v_installed += match(v, "vartree")
-
-	for u in unaffectedList:
-		u_installed += match(u, "vartree")
+	v_installed = reduce(operator.add, [match(v, "vartree") for v in vulnerableList], [])
+	u_installed = reduce(operator.add, [match(u, "vartree") for u in unaffectedList], [])
 	
 	install_unaffected = True
 	for i in v_installed:
@@ -636,21 +629,15 @@ class Glsa:
 			pass
 		if len(self.bugs) > 0:
 			outstream.write("\nRelated bugs:      ")
-			for i in range(0, len(self.bugs)):
-				outstream.write(self.bugs[i])
-				if i < len(self.bugs)-1:
-					outstream.write(", ")
-				else:
-					outstream.write("\n")				
+ 			outstream.write(", ".join(self.bugs))
+ 			outstream.write("\n")
 		if self.background:
 			outstream.write("\n"+wrap(self.background, width, caption="Background:       "))
 		outstream.write("\n"+wrap(self.description, width, caption="Description:      "))
 		outstream.write("\n"+wrap(self.impact_text, width, caption="Impact:           "))
 		outstream.write("\n"+wrap(self.workaround, width, caption="Workaround:       "))
 		outstream.write("\n"+wrap(self.resolution, width, caption="Resolution:       "))
-		myreferences = ""
-		for r in self.references:
-			myreferences += (r.replace(" ", SPACE_ESCAPE)+NEWLINE_ESCAPE+" ")
+ 		myreferences = " ".join(r.replace(" ", SPACE_ESCAPE)+NEWLINE_ESCAPE for r in self.references)
 		outstream.write("\n"+wrap(myreferences, width, caption="References:       "))
 		outstream.write("\n")