tree 4083f7f589d52994896a73b42a96855c6bd62f99
parent 7793a9df3cb2a33bc390f31f7eca90dc9c5f3dab
author Jonathan Amsterdam <jba@google.com> 1631626562 -0400
committer Jonathan Amsterdam <jba@google.com> 1631633533 +0000

internal/{worker,stdlib}: /fetch-std-master: avoid cloning go repo

On each call of the /fetch-std-master endpoint, we cloned the Go repo
for each supported branch to determine its current commit. Although
not a big deal, that is a bit wasteful and it also would occasionally
fail obscurely.

Instead we use git's remote list feature to get all the repo's refs in
one call. We then compare the hashes with the stored pseudo-versions
to see if the branch has moved.

Change-Id: I1d70e63668fcf6d35b90b9c231255faec614a04e
Reviewed-on: https://go-review.googlesource.com/c/pkgsite/+/349753
Trust: Jonathan Amsterdam <jba@google.com>
Run-TryBot: Jonathan Amsterdam <jba@google.com>
TryBot-Result: kokoro <noreply+kokoro@google.com>
Reviewed-by: Julie Qiu <julie@golang.org>