Amos,
Thanks for the reply but it seems i am not able to tell you what i want to do. i don't want to cache repo files. i want to cache .zip files only. i don't want .git file to cache but only .zip files which are fetch from github.com,Also you have said things about commits but i am talking about zip file which is given by github via download button or composer fetches those files via command line directly. as soon as someone commits zip file's ETag is changed when you fetch it.
So there is no way to achieve this ? Do you think there is a way to achieve this ?
Consider: how does Squid know the ETag has changed on the server? What you know about things happening in RL is not what Squid knows. I fact how do *you* know someone else did not commit a change during
that ~1 second it takes to look at the page and click the download button?
Simply, you don't, and cannot until the new object has been fetched. Likewise, Squid cannot know if the object is the same until it has
fetched a MISS from the server. Except that Squid does not look at the
previous page content, so it cannot even 'see' if there is a commit
listed there that might be different since whenever it got the previous
object. There is no Cache-Control or Expires header indicating a specific
storage timeout or revalidation procedure. So refresh_pattern defaults
will be used. These responses will be cached for the refresh_pattern
'Min' duration (900 minutes) before being considered for revalidated. NP 1: Synthesizing Last-Modified from the Date header is only just being
fixed in Squid the past few weeks, and some parts of it still to be
committed. So I would not expect that response to be revalidated, just
re-fetched fully in older Squid. NP 2: The Vary header indicates that every person logged in gets a
differently cached response based on how their credentials are hashed on
each request (in Authorization tokens). So caching these objects will
not help much with many developers involved. It will be of most help for
the anonymous visitors where username is always a generic NIL value. HTH
Amos
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