def cache_check(self):
""" Checks for the cache. Returns True if everything is up-to-date, False if not. """
if not self.use_cache:
return False
md5s = {}
for trigger in self.cache_trigger:
if not os.path.exists(trigger):
# Trigger doesn't exist. False.
return False
md5 = hashme.md5()
md5 = md5.file(trigger)
md5s[trigger] = md5
_file = os.path.join(self.cache_path, ".%s.md5" % self.cache)
_cachefile = os.path.join(self.cache_path, ".%s.cache" % self.cache)
if not os.path.exists(_cachefile):
# The cachefile does not exist. False.
return False
if os.path.exists(_file):
with open(_file) as f:
lines = f.readlines()
md5f = {}
# New dict with md5s on lines:
for line in lines:
line = line.split(":")
md5f[line[0]] = line[1].replace("\n","")
# Compare items
for item, md5 in md5s.items():
try:
if not md5f[item] == md5:
# At least one wrong, should recache.
return False
except:
return False # something is missing, rebuild cache.
else:
# md5 file doesn't exist, recache.
return False
# If we are here, everything went well.
return True
def final_menu(self):
""" Prints the menu """
if self.use_cache and not self.cache_loaded:
# Write the cache file.
_file = os.path.join(self.cache_path, ".%s.md5" % self.cache)
_cachefile = os.path.join(self.cache_path, ".%s.cache" % self.cache)
with open(_cachefile, "w") as f:
f.write("\n".join(self.menu))
with open(_file, "w") as f:
for trigger in self.cache_trigger:
if not os.path.exists(trigger):
# Skip, will wrote the cache but it will not be used.
continue
md5 = hashme.md5()
md5 = md5.file(trigger)
f.write("%s:%s\n" % (trigger,md5))
return "\n".join(self.menu)
