--- /usr/lib/portage/pym/portage_contents.py	2004-11-07 23:53:58.000000000 +0000
+++ portage_contents.py	2004-11-14 03:02:45.000000000 +0000
@@ -3,9 +3,10 @@
 # Distributed under the terms of the GNU General Public License v2
 # $Header: /var/cvsroot/gentoo-src/portage/pym/portage_contents.py,v 1.3 2004/10/04 14:07:40 vapier Exp $
 
-import os,string,types,sys,copy
+import os,string,types,sys,copy,stat
 import portage_exception
 import portage_const
+import portage_checksum
 
 #import gettext
 #gettext_t = gettext.translation('portage.contents', portage_const.LOCALE_DATA_PATH)
@@ -17,6 +18,102 @@
 FILES_KEY = "\0FILES\0"
 OWNER_KEY = "\0OWNER\0"
 
+class ContentsManager:
+	"""Manage a CONTENTS file."""
+	def __init__(self,filename):
+
+		self.contents = []
+		
+		self.filename = filename
+		self.readFile(filename)
+
+	def readFile(self,filename):
+		infile = open(filename)
+	
+		mylines = infile.readlines()
+		infile.close()
+		
+		contents = self.contents
+		
+		for line in mylines:
+			if line[-1] == '\n':
+				line   = line[:-1]
+			parts  = string.split(line)
+			
+			mytype   = parts[0]
+			
+			if   mytype in ["dir","dev","fif"]:
+				mypath = string.join(parts[1:])
+				contents.append({'type': mytype, 'path': mypath})
+			elif mytype == "obj":
+				mypath = string.join(parts[1:-2])
+				mymd5 = parts[-2]
+				mymtime = parts[-1]
+				contents.append({'type': mytype, 'path': mypath, 'md5': mymd5, 'mtime': mymtime})
+			elif mytype == "sym":
+				sl = string.join(parts[1:-1])
+				sl = string.split(sl, " -> ")
+	
+				mypath   = sl[0]
+				mytarget = sl[1]
+				mymtime = parts[-1]
+				contents.append({'type': mytype, 'path': mypath, 'target': mytarget, 'mtime': mymtime})
+			else:
+				print _("Unknown type:"),mytype	
+	
+	def writeFile(self,filename=""):
+		contents=self.contents
+		if filename == "":
+			filename = self.filename
+		
+		outfile=open(filename,"w")
+		for x in contents:
+			if x['type'] in ["dir","dev","fif"]:
+				outfile.write(x['type']+"\t"+x['path']+"\n")
+			elif x['type'] == "obj":
+				outfile.write(x['type']+"\t"+x['path']+"\t"+x['md5']+" "+x['mtime']+"\n")
+			elif x['type'] == "sym":
+				outfile.write(x['type']+"\t"+x['path']+"\t->\t"+x['target']+" "+x['mtime']+"\n")
+		outfile.close()
+		return
+
+	def getMD5(self,filename):
+		contents = self.contents
+		
+		for i in contents:
+			if i['path'] == filename:
+				return i['md5']
+				
+	def getMtime(self,filename):
+		contents = self.contents
+		
+		for i in contents:
+			if i['path'] == filename:
+				return i['mtime']
+		
+	def updateAllInfos(self,filename):
+		self.changeMD5(filename)
+		self.changeMtime(filename)
+		
+	def changeMD5(self,filename, newmd5=""):
+		contents = self.contents
+		if newmd5 == "":
+			newmd5=portage_checksum.perform_md5(filename)
+		
+		for i in contents:
+			if i['path'] == filename:
+				i['md5'] = newmd5
+	
+	def changeMtime(self, filename, newmtime=""):
+		contents = self.contents
+		if newmtime == "":
+			pathstat = os.stat(filename)
+			newmtime = pathstat[stat.ST_MTIME]
+		
+		for i in contents:
+			if i['path'] == filename:
+				i['mtime'] = str(newmtime)
+
 
 def ContentsHandler(filename):
 	infile = open(filename)