Index: lib/bb/shell.py
===================================================================
--- lib/bb/shell.py	(revision 581)
+++ lib/bb/shell.py	(working copy)
@@ -103,6 +103,7 @@
             self.parse( None )
 
     def _findProvider( self, item ):
+        import bb
         self._checkParsed()
         preferred = data.getVar( "PREFERRED_PROVIDER_%s" % item, cooker.configuration.data, 1 )
         if not preferred: preferred = item
@@ -413,6 +414,120 @@
             print "ERROR: Nothing provides '%s'" % params[0]
     reparse.usage = "<providee>"
 
+    def freeze( self, params ):
+        """Freeze BBFILES to currently built packages"""
+        import re, bb
+        bbfiles = open(os.path.join(data.expand("${TMPDIR}", cooker.configuration.data),
+                                    "..",
+                                    "conf",
+                                    "frozen-bbfiles.conf"),
+                       "w")
+        bbfiles.write("BBFILES := \"\\\n")
+        packages = open(os.path.join(data.expand("${TMPDIR}", cooker.configuration.data),
+                                     "..",
+                                     "conf",
+                                     "frozen-packages.conf"),
+                        "w")
+        packages.write("BBFILES := \"\\\n")
+        # use the feed to get real package names (probably superfluous)
+        bl = list()
+        pl = list()
+        ml = list()
+        pf = open(os.path.join(data.expand("${TMPDIR}", cooker.configuration.data), "deploy", "ipk", "Packages"), "r")
+        packageRE = re.compile('^Package: (.+)$')
+        dashRE = re.compile('-[^-]*$')
+        bbRE = re.compile("/([^/]+\.bb)$")
+        for l in pf:
+            m = packageRE.match(l)
+            if not m:
+                continue
+            m = m.group(1)
+
+            p = None
+            while True:
+                if len(m) == 0:
+                    break
+                if m in ml:
+                    # if only python supported "continue x"
+                    break
+                ml.append(m)
+                p = self._findProvider(m)
+                if p:
+                    break
+                elif "-" in m:
+                    m = re.sub(dashRE, '', m)
+                else:
+                    break
+
+            if not p:
+                # if only python supported "continue x"
+                if m in ml:
+                    continue
+                bb.note(" none found for "+m.group(1))
+                continue
+            if p in bl:
+                continue
+            bl.append(p)
+            bbfiles.write(p + " \\\n")
+            p = re.sub(bbRE, "/*.bb", p)
+            if p in pl:
+                continue
+            pl.append(p)
+            packages.write(p + " \\\n")
+
+        # hack by parsing directories (needed for -native packages at least)
+        dir = os.path.join(bb.data.expand("${TMPDIR}", cooker.configuration.data), "work")
+        dirRE = re.compile('(.*)-(\d+(?:\.\d+)*)-(r\d+)')
+        for sub in os.listdir(dir):
+            fsub = os.path.join(dir, sub)
+            if not os.path.isdir(fsub):
+                continue
+            for subsub in os.listdir(fsub):
+                fsubsub = os.path.join(fsub, subsub)
+                if not os.path.isdir(fsubsub):
+                    continue
+                m = dirRE.match(subsub)
+                if m:
+                    m = m.group(1)
+                else:
+                    m = subsub
+                p = None
+                while True:
+                    if len(m) == 0:
+                        break
+                    if m in ml:
+                        # if only python supported "continue x"
+                        break
+                    ml.append(m)
+                    p = self._findProvider(m)
+                    if p:
+                        break
+                    elif "-" in m:
+                        m = re.sub(dashRE, '', m)
+                    else:
+                        break
+
+                if not p:
+                    # if only python supported "continue x"
+                    if m in ml:
+                        continue
+                    bb.note(" none found for "+subsub)
+                if p in bl:
+                    continue
+                bl.append(p)
+                bbfiles.write(p + " \\\n")
+                p = re.sub(bbRE, "/*.bb", p)
+                if p in pl:
+                    continue
+                pl.append(p)
+                packages.write(p + " \\\n")
+
+        bbfiles.write("\"\n")
+        bbfiles.close()
+        packages.write("\"\n")
+        packages.close()
+    freeze.usage = ""
+
     def getvar( self, params ):
         """Dump the contents of an outer BitBake environment variable"""
         var = params[0]