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fluxcd: rewrite update script to use nix-update (#515726)

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tomberek
2026-05-05 02:04:20 +00:00
committed by GitHub
parent 8c767e46bb 289b7b1f42
commit bc57abace0
1 changed files with 15 additions and 44 deletions
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pkgs/by-name/fl/fluxcd/update.sh
+15 -44
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@@ -1,50 +1,21 @@
#!/usr/bin/env nix-shell
#!nix-shell -i bash -p curl gnugrep gnused jq
#!nix-shell -i bash -p gnused nix-update
set -x -eu -o pipefail
set -eu -o pipefail
set -x
NIXPKGS_PATH="$(git rev-parse --show-toplevel)"
FLUXCD_PATH="$( cd -- "$(dirname "$0")" >/dev/null 2>&1 ; pwd -P )"
# Compute the relative dir of the update script
SCRIPT_DIR="$(cd -- "$(dirname "$0")" >/dev/null 2>&1; pwd -P)"
OLD_VERSION="$(nix-instantiate --eval -E "with import $NIXPKGS_PATH {}; fluxcd.version or (builtins.parseDrvName fluxcd.name).version" | tr -d '"')"
LATEST_TAG=$(curl ${GITHUB_TOKEN:+" -u \":$GITHUB_TOKEN\""} --silent https://api.github.com/repos/fluxcd/flux2/releases/latest | jq -r '.tag_name')
LATEST_VERSION=$(echo "${LATEST_TAG}" | sed 's/^v//')
# Update version, src hash, and vendor hash
nix-update fluxcd
if [ ! "$OLD_VERSION" = "$LATEST_VERSION" ]; then
SRC_SHA256=$(nix-prefetch-url --quiet --unpack "https://github.com/fluxcd/flux2/archive/refs/tags/${LATEST_TAG}.tar.gz")
SRC_HASH=$(nix --extra-experimental-features nix-command hash convert --hash-algo sha256 --to sri "$SRC_SHA256")
MANIFESTS_SHA256=$(nix-prefetch-url --quiet --unpack "https://github.com/fluxcd/flux2/releases/download/${LATEST_TAG}/manifests.tar.gz")
MANIFESTS_HASH=$(nix --extra-experimental-features nix-command hash convert --hash-algo sha256 --to sri "$MANIFESTS_SHA256")
# Read the potentially updated version from `nix-update fluxcd` using SCRIPT_DIR
VERSION=$(sed -n 's/.*version = "\(.*\)".*/\1/p' "${SCRIPT_DIR}/package.nix" | head -1)
setKV () {
sed -i "s|$1 = \".*\"|$1 = \"${2:-}\"|" "${FLUXCD_PATH}/package.nix"
}
setKV version "${LATEST_VERSION}"
setKV srcHash "${SRC_HASH}"
setKV manifestsHash "${MANIFESTS_HASH}"
setKV vendorHash "sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=" # The same as lib.fakeHash
set +e
VENDOR_SHA256=$(nix-build --no-out-link -A fluxcd "$NIXPKGS_PATH" 2>&1 >/dev/null | grep "got:" | cut -d':' -f2 | sed 's| ||g')
VENDOR_HASH=$(nix --extra-experimental-features nix-command hash convert --hash-algo sha256 --to sri "$VENDOR_SHA256")
set -e
if [ -n "${VENDOR_HASH:-}" ]; then
setKV vendorHash "${VENDOR_HASH}"
else
echo "Update failed. VENDOR_HASH is empty."
exit 1
fi
# `git` flag here is to be used by local maintainers to speed up the bump process
if [ $# -eq 1 ] && [ "$1" = "git" ]; then
git switch -c "package-fluxcd-${LATEST_VERSION}"
git add "$FLUXCD_PATH"/package.nix
git commit -m "fluxcd: ${OLD_VERSION} -> ${LATEST_VERSION}
Release: https://github.com/fluxcd/flux2/releases/tag/v${LATEST_VERSION}"
fi
else
echo "fluxcd is already up-to-date at $OLD_VERSION"
fi
# Update the additional fluxcd manifests hash
# This is idempotent and will run regardless of whether nix-update changes the package.nix version
# note: tag format is assumed to be v${VERSION} which matches the fetchZip in package.nix
MANIFESTS_SHA256=$(nix-prefetch-url --quiet --unpack "https://github.com/fluxcd/flux2/releases/download/v${VERSION}/manifests.tar.gz")
MANIFESTS_HASH=$(nix --extra-experimental-features nix-command hash convert --hash-algo sha256 --to sri "$MANIFESTS_SHA256")
sed -i "s|manifestsHash = \".*\"|manifestsHash = \"${MANIFESTS_HASH}\"|" "${SCRIPT_DIR}/package.nix"