nixpkgs/pkgs/servers/monitoring/grafana/update.sh
2022-04-14 10:58:50 +02:00

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#!/usr/bin/env nix-shell
#!nix-shell -i bash -p curl common-updater-scripts jq nix nix-prefetch-scripts moreutils
set -euxo pipefail
FILE="$(nix-instantiate --eval -E 'with import ./. {}; (builtins.unsafeGetAttrPos "version" grafana).file' | tr -d '"')"
replaceHash() {
old="${1?old hash missing}"
new="${2?new hash missing}"
awk -v OLD="$old" -v NEW="$new" '{
if (i=index($0, OLD)) {
$0 = substr($0, 1, i-1) NEW substr($0, i+length(OLD));
}
print $0;
}' "$FILE" | sponge "$FILE"
}
extractVendorHash() {
original="${1?original hash missing}"
result="$(nix-build -A grafana.go-modules 2>&1 | tail -n3 | grep 'got:' | cut -d: -f2- | xargs echo || true)"
[ -z "$result" ] && { echo "$original"; } || { echo "$result"; }
}
oldVersion="$(nix-instantiate --eval -E "with import ./. {}; lib.getVersion grafana" | tr -d '"')"
latest="$(curl https://api.github.com/repos/grafana/grafana/releases/latest | jq '.tag_name' -r | tr -d 'v')"
targetVersion="${1:-$latest}"
if [ ! "${oldVersion}" = "${targetVersion}" ]; then
update-source-version grafana "${targetVersion#v}"
oldStaticHash="$(nix-instantiate --eval -A grafana.srcStatic.outputHash | tr -d '"')"
newStaticHash="$(nix-prefetch-url "https://dl.grafana.com/oss/release/grafana-${targetVersion#v}.linux-amd64.tar.gz")"
replaceHash "$oldStaticHash" "$newStaticHash"
goHash="$(nix-instantiate --eval -A grafana.vendorSha256 | tr -d '"')"
emptyHash="$(nix-instantiate --eval -A lib.fakeSha256 | tr -d '"')"
replaceHash "$goHash" "$emptyHash"
replaceHash "$emptyHash" "$(extractVendorHash "$goHash")"
nix-build -A grafana
else
echo "grafana is already up-to-date"
fi