def get_lock(fn, wait=5*60, max_age=3600*6):
try:
- stat = os.stat(fn)
- if stat[ST_MTIME] < time.time() - max_age:
- sys.stderr.write("Removing stale lock %s"%(fn))
- os.unlink(fn)
+ stat = os.stat(fn + '.lock')
+ if stat.st_mtime < time.time() - max_age:
+ sys.stderr.write("Removing stale lock %s"%(fn + '.lock'))
+ os.unlink(fn + '.lock')
except OSError, error:
if error.errno == errno.ENOENT:
pass
l = make_ldap_conn()
+mods = l.search_s('cn=log',
+ ldap.SCOPE_ONELEVEL,
+ '(&(&(!(reqMod=activity-from*))(!(reqMod=activity-pgp*)))(|(reqType=add)(reqType=delete)(reqType=modify)(reqType=modrdn)))',
+ ['reqEnd'])
+
+last = 0
+
+# Sort the list by reqEnd
+sorted_mods = sorted(mods, key=lambda mod: mod[1]['reqEnd'][0].split('.')[0])
+# Take the last element in the array
+last = sorted_mods[-1][1]['reqEnd'][0].split('.')[0]
+
+# override globaldir for testing
+if 'UD_GENERATEDIR' in os.environ:
+ GenerateDir = os.environ['UD_GENERATEDIR']
+
+cache_last_mod = 0
+
+try:
+ fd = open(os.path.join(GenerateDir, "last_update.trace"), "r")
+ cache_last_mod=fd.read().strip()
+ fd.close()
+except IOError, e:
+ if e.errno == errno.ENOENT:
+ pass
+ else:
+ raise e
+if cache_last_mod >= last:
+ sys.exit(0)
+
+fd = open(os.path.join(GenerateDir, "last_update.trace"), "w")
+fd.write(last)
+fd.close()
+
# Fetch all the groups
GroupIDMap = {}
attrs = l.search_s(BaseDn, ldap.SCOPE_ONELEVEL, "gid=*",\
if x[1].has_key("subGroup") != 0:
SubGroupMap.setdefault(x[1]["gid"][0], []).extend(x[1]["subGroup"])
-# override globaldir for testing
-if 'UD_GENERATEDIR' in os.environ:
- GenerateDir = os.environ['UD_GENERATEDIR']
-
+lock = None
try:
- lock = get_lock( os.path.join(GenerateDir, 'ud-generate.lock') )
+ lockf = os.path.join(GenerateDir, 'ud-generate.lock')
+ lock = get_lock( lockf )
if lock is None:
- sys.stderr.write("Could not acquire lock %s.\n"%(fn))
+ sys.stderr.write("Could not acquire lock %s.\n"%(lockf))
sys.exit(1)
generate_all(GenerateDir, l)
finally:
- if not lock is None:
+ if lock is not None:
lock.release()
# vim:set et: