def gen_pnpages(context, vdir):
# Disabled? Skip entirely.
if not rendcache.gen_cache_on(context.cfg):
return gen_pnp_direct(context, vdir)
# Even if we get a cache hit, we must super-validate it. We do so
# by checking that the timestamps of ourselves and our next and
# previous links are the same as in the list.
res = rendcache.fetch_gen(context, vdir.path, 'pnc-kids')
if res:
r = steppage_pos(context, context.page.path, res)
if r and \
valid_pos(context, res, r[0]) and \
valid_pos(context, res, r[1]) and \
valid_pos(context, res, r[2]):
return pages_from_pos(context, res, r)
# Miss; generate.
r = gen_pnp_direct(context, vdir)
if not r:
return r
dl = r[2]
# The validator for the list is somewhat big; it is the timestamp
# of every directory in the list, explicitly including the root
# of the list. Unfortunately we have to manually deduce this from
# the files in the list, which means that we can accidentally
# omit a directory that currently has no files. This is really
# a fault of the cache_page_children() approach, but meh.
v = rendcache.Validator()
ds = {}
v.add_mtime(vdir)
ds[vdir.path] = True
for ts, ppath in dl:
pdir = utils.parent_path(ppath)
if pdir in ds:
continue
ds[pdir] = True
v.add_mtime(context.model.get_page(pdir))
rendcache.store_gen(context, 'pnc-kids', vdir.path, dl, v)
return r
def _get_disk_cpc(self, page): if not rendcache.cache_on(self.cfg) or page.virtual() or \ page.type != "dir": return None return rendcache.fetch_gen(self, page.path, "page-kids")
def _get_disk_cpc(self, page):
if not rendcache.cache_on(self.cfg) or page.virtual() or \
page.type != "dir":
return None
return rendcache.fetch_gen(self, page.path, "page-kids")