#! /usr/bin/env python
# copy old pyraf.Database cache to new clcache directory
#
# If your iraf directory is not ~/iraf, run this from the
# directory where your login.cl is found.
#
# R. White, 2000 Sept 26

import dirdbm, anydbm, os, sys

trydirs = ['.', './pyraf', '~/iraf/pyraf']

for dir in trydirs:
	dir = os.path.expanduser(dir)
	oldfile = os.path.join(dir,'pyraf.Database')
	if os.path.exists(oldfile):
		break
else:
	print 'Error: cannot find old pyraf.Database'
	print 'Checked',
	for dir in trydirs: print dir,
	print
	print 'Run this script from your iraf directory'
	sys.exit(1)

newfile = os.path.join(dir,'clcache')
old = anydbm.open(oldfile, 'r')
new = dirdbm.open(newfile, 'c')

keys = old.keys()
i = 0
nskip = 0
nkeys = len(keys)
print 'Copying',nkeys,'clcache entries'

for key in keys:
	if not new.has_key(key):
		new[key] = old[key]
	else:
		nskip = nskip + 1
	i = i+1
	sys.stdout.write("Finished %d of %d%s" % (i,nkeys,chr(13)))
	sys.stdout.flush()

old.close()
new.close()
print
if nskip>0:
	print 'Skipped',nskip,'entries already found in',newfile
print 'Successfully created %s' % newfile
print 'Old CL cache (%s) can be deleted' % oldfile