two version of R2R are here HEAD master

1 files changed, 239 insertions, 0 deletions

diff --git a/.venv/lib/python3.12/site-packages/mako/cache.py b/.venv/lib/python3.12/site-packages/mako/cache.py
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+# mako/cache.py
+# Copyright 2006-2025 the Mako authors and contributors <see AUTHORS file>
+#
+# This module is part of Mako and is released under
+# the MIT License: http://www.opensource.org/licenses/mit-license.php
+
+from mako import util
+
+_cache_plugins = util.PluginLoader("mako.cache")
+
+register_plugin = _cache_plugins.register
+register_plugin("beaker", "mako.ext.beaker_cache", "BeakerCacheImpl")
+
+
+class Cache:
+
+    """Represents a data content cache made available to the module
+    space of a specific :class:`.Template` object.
+
+    .. versionadded:: 0.6
+       :class:`.Cache` by itself is mostly a
+       container for a :class:`.CacheImpl` object, which implements
+       a fixed API to provide caching services; specific subclasses exist to
+       implement different
+       caching strategies.   Mako includes a backend that works with
+       the Beaker caching system.   Beaker itself then supports
+       a number of backends (i.e. file, memory, memcached, etc.)
+
+    The construction of a :class:`.Cache` is part of the mechanics
+    of a :class:`.Template`, and programmatic access to this
+    cache is typically via the :attr:`.Template.cache` attribute.
+
+    """
+
+    impl = None
+    """Provide the :class:`.CacheImpl` in use by this :class:`.Cache`.
+
+    This accessor allows a :class:`.CacheImpl` with additional
+    methods beyond that of :class:`.Cache` to be used programmatically.
+
+    """
+
+    id = None
+    """Return the 'id' that identifies this cache.
+
+    This is a value that should be globally unique to the
+    :class:`.Template` associated with this cache, and can
+    be used by a caching system to name a local container
+    for data specific to this template.
+
+    """
+
+    starttime = None
+    """Epochal time value for when the owning :class:`.Template` was
+    first compiled.
+
+    A cache implementation may wish to invalidate data earlier than
+    this timestamp; this has the effect of the cache for a specific
+    :class:`.Template` starting clean any time the :class:`.Template`
+    is recompiled, such as when the original template file changed on
+    the filesystem.
+
+    """
+
+    def __init__(self, template, *args):
+        # check for a stale template calling the
+        # constructor
+        if isinstance(template, str) and args:
+            return
+        self.template = template
+        self.id = template.module.__name__
+        self.starttime = template.module._modified_time
+        self._def_regions = {}
+        self.impl = self._load_impl(self.template.cache_impl)
+
+    def _load_impl(self, name):
+        return _cache_plugins.load(name)(self)
+
+    def get_or_create(self, key, creation_function, **kw):
+        """Retrieve a value from the cache, using the given creation function
+        to generate a new value."""
+
+        return self._ctx_get_or_create(key, creation_function, None, **kw)
+
+    def _ctx_get_or_create(self, key, creation_function, context, **kw):
+        """Retrieve a value from the cache, using the given creation function
+        to generate a new value."""
+
+        if not self.template.cache_enabled:
+            return creation_function()
+
+        return self.impl.get_or_create(
+            key, creation_function, **self._get_cache_kw(kw, context)
+        )
+
+    def set(self, key, value, **kw):
+        r"""Place a value in the cache.
+
+        :param key: the value's key.
+        :param value: the value.
+        :param \**kw: cache configuration arguments.
+
+        """
+
+        self.impl.set(key, value, **self._get_cache_kw(kw, None))
+
+    put = set
+    """A synonym for :meth:`.Cache.set`.
+
+    This is here for backwards compatibility.
+
+    """
+
+    def get(self, key, **kw):
+        r"""Retrieve a value from the cache.
+
+        :param key: the value's key.
+        :param \**kw: cache configuration arguments.  The
+         backend is configured using these arguments upon first request.
+         Subsequent requests that use the same series of configuration
+         values will use that same backend.
+
+        """
+        return self.impl.get(key, **self._get_cache_kw(kw, None))
+
+    def invalidate(self, key, **kw):
+        r"""Invalidate a value in the cache.
+
+        :param key: the value's key.
+        :param \**kw: cache configuration arguments.  The
+         backend is configured using these arguments upon first request.
+         Subsequent requests that use the same series of configuration
+         values will use that same backend.
+
+        """
+        self.impl.invalidate(key, **self._get_cache_kw(kw, None))
+
+    def invalidate_body(self):
+        """Invalidate the cached content of the "body" method for this
+        template.
+
+        """
+        self.invalidate("render_body", __M_defname="render_body")
+
+    def invalidate_def(self, name):
+        """Invalidate the cached content of a particular ``<%def>`` within this
+        template.
+
+        """
+
+        self.invalidate("render_%s" % name, __M_defname="render_%s" % name)
+
+    def invalidate_closure(self, name):
+        """Invalidate a nested ``<%def>`` within this template.
+
+        Caching of nested defs is a blunt tool as there is no
+        management of scope -- nested defs that use cache tags
+        need to have names unique of all other nested defs in the
+        template, else their content will be overwritten by
+        each other.
+
+        """
+
+        self.invalidate(name, __M_defname=name)
+
+    def _get_cache_kw(self, kw, context):
+        defname = kw.pop("__M_defname", None)
+        if not defname:
+            tmpl_kw = self.template.cache_args.copy()
+            tmpl_kw.update(kw)
+        elif defname in self._def_regions:
+            tmpl_kw = self._def_regions[defname]
+        else:
+            tmpl_kw = self.template.cache_args.copy()
+            tmpl_kw.update(kw)
+            self._def_regions[defname] = tmpl_kw
+        if context and self.impl.pass_context:
+            tmpl_kw = tmpl_kw.copy()
+            tmpl_kw.setdefault("context", context)
+        return tmpl_kw
+
+
+class CacheImpl:
+
+    """Provide a cache implementation for use by :class:`.Cache`."""
+
+    def __init__(self, cache):
+        self.cache = cache
+
+    pass_context = False
+    """If ``True``, the :class:`.Context` will be passed to
+    :meth:`get_or_create <.CacheImpl.get_or_create>` as the name ``'context'``.
+    """
+
+    def get_or_create(self, key, creation_function, **kw):
+        r"""Retrieve a value from the cache, using the given creation function
+        to generate a new value.
+
+        This function *must* return a value, either from
+        the cache, or via the given creation function.
+        If the creation function is called, the newly
+        created value should be populated into the cache
+        under the given key before being returned.
+
+        :param key: the value's key.
+        :param creation_function: function that when called generates
+         a new value.
+        :param \**kw: cache configuration arguments.
+
+        """
+        raise NotImplementedError()
+
+    def set(self, key, value, **kw):
+        r"""Place a value in the cache.
+
+        :param key: the value's key.
+        :param value: the value.
+        :param \**kw: cache configuration arguments.
+
+        """
+        raise NotImplementedError()
+
+    def get(self, key, **kw):
+        r"""Retrieve a value from the cache.
+
+        :param key: the value's key.
+        :param \**kw: cache configuration arguments.
+
+        """
+        raise NotImplementedError()
+
+    def invalidate(self, key, **kw):
+        r"""Invalidate a value in the cache.
+
+        :param key: the value's key.
+        :param \**kw: cache configuration arguments.
+
+        """
+        raise NotImplementedError()