tailscale/pull-toolchain.sh
David Anderson d2beaea523 update-flake.sh: tooling to keep Nix SRI hashes in sync.
Also fixes the Go toolchain SRI hash from a7f05c6bb0,
it turns out I initialized the file with an SRI hash for an older
toolchain version, and because of the unique way fixed-output derivations
work in nix, nix didn't tell me about the mismatch because it just
cache-hit on the older toolchain and moved on. Sigh.

Updates #6845.

Signed-off-by: David Anderson <danderson@tailscale.com>
2022-12-24 15:22:41 -08:00

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#!/bin/sh
# Retrieve the latest Go toolchain.
#
set -eu
cd "$(dirname "$0")"
read -r go_branch <go.toolchain.branch
upstream=$(git ls-remote https://github.com/tailscale/go "$go_branch" | awk '{print $1}')
current=$(cat go.toolchain.rev)
if [ "$upstream" != "$current" ]; then
echo "$upstream" >go.toolchain.rev
./update-flake.sh
fi
if [ -n "$(git diff-index --name-only HEAD -- go.toolchain.rev go.toolchain.sri go.mod.sri)" ]; then
echo "pull-toolchain.sh: changes imported. Use git commit to make them permanent." >&2
fi