Re: Obtaining content from Git

also sprach Tim Chase <django.users@tim.thechases.com> [2014-11-24 11:19 +0100]:
> urlpatterns = patterns('',
> url(r'^blob/([0-9a-f]{40})/$', 'myapp.views.render_blob', ...),
> )

… this is straight-forward, thanks. I'd probably try not to expose
the SHAs to the user but request from the Git library a blob
identified by a path such as /path/to/file which the Git
library should then map to the blob, given a treeish to use as
a base (e.g. 'master', this could come from config).

> In theory, you could also set the cache control headers in the
> response so that they're ludicrously far in the future (assuming
> you don't plan to change your my_template.html) because the blob
> shouldn't ever change without having a different SHA1.

Two problems I see with this:

1. If the SHA is not exposed, then a request path (see above) may
well return different content on subsequent calls, so
expiration-based caching isn't ideal;

2. aren't the cache-control headers for the caches downstream?
Wouldn't this mean that if 1,000 clients requested a page, the
reStructuredText processor would have to do the same work 1,000
times? I'd love to cache the result and serve that while the
source file's pre-processing mtime hasn't changed.

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