nixpkgs/ci/update-pinned-nixpkgs.sh
Silvan Mosberger e9bd2f3c25 ci: reusable Nix format Nixpkgs pin
This is needed such that in the next commit, we can re-use the same
version from a shell.nix, allowing people to have a guaranteed matching
nixfmt version.

(cherry picked from commit b33ac05d04)
2024-07-15 17:49:04 +02:00

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#!/usr/bin/env nix-shell
#!nix-shell -i bash -p jq
set -euo pipefail
# https://stackoverflow.com/a/246128
SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
repo=https://github.com/nixos/nixpkgs
branch=nixpkgs-unstable
file=$SCRIPT_DIR/pinned-nixpkgs.json
rev=$(git ls-remote "$repo" refs/heads/"$branch" | cut -f1)
sha256=$(nix-prefetch-url --unpack "$repo/archive/$rev.tar.gz" --name source)
jq -n --arg rev "$rev" --arg sha256 "$sha256" '$ARGS.named' | tee /dev/stderr > $file