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https://github.com/lukaszraczylo/talos-builder.git
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local-build
115 lines
3.5 KiB
Bash
Executable File
115 lines
3.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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#
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# Update the raspberrypi/linux kernel reference in both patch files.
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# Takes a branch or tag name, resolves it to a commit on GitHub, downloads
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# the tarball, computes sha256/sha512, extracts the kernel version from the
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# top-level Makefile, and rewrites both patch files in place.
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#
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# Usage: ./update-rpi-kernel.sh <branch-or-tag>
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# Example: ./update-rpi-kernel.sh rpi-6.18.y
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#
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set -euo pipefail
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if [ $# -ne 1 ]; then
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echo "Usage: $0 <branch-or-tag>" >&2
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echo "Example: $0 rpi-6.18.y" >&2
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exit 1
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fi
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REF="$1"
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REPO="raspberrypi/linux"
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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PKGS_PATCH="${SCRIPT_DIR}/patches/siderolabs/pkgs/0001-Patched-for-Raspberry-Pi-5.patch"
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SBC_PATCH="${SCRIPT_DIR}/patches/siderolabs/sbc-raspberrypi/0001-Patched-for-Raspberry-Pi-5.patch"
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for f in "$PKGS_PATCH" "$SBC_PATCH"; do
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if [ ! -f "$f" ]; then
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echo "Missing patch file: $f" >&2
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exit 1
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fi
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done
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for cmd in curl tar perl awk shasum; do
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if ! command -v "$cmd" >/dev/null 2>&1; then
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echo "Required command not found: $cmd" >&2
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exit 1
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fi
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done
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echo "Resolving ${REPO}@${REF}..."
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COMMIT_JSON=$(curl -fsSL \
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-H "Accept: application/vnd.github+json" \
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"https://api.github.com/repos/${REPO}/commits/${REF}")
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FULL_SHA=$(printf '%s' "$COMMIT_JSON" | awk -F'"' '/"sha":/ {print $4; exit}')
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if [ -z "$FULL_SHA" ]; then
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echo "Could not resolve commit SHA for ${REF}" >&2
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exit 1
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fi
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SHORT_SHA="${FULL_SHA:0:12}"
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# Use the committer date, which is what shows up on the GitHub commit page.
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COMMIT_DATE=$(printf '%s' "$COMMIT_JSON" \
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| awk '/"committer":/{found=1} found && /"date":/{print; exit}' \
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| awk -F'"' '{print $4}' \
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| cut -d'T' -f1)
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echo " commit: $FULL_SHA"
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echo " short: $SHORT_SHA"
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echo " date: $COMMIT_DATE"
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TMPDIR=$(mktemp -d)
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trap 'rm -rf "$TMPDIR"' EXIT
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TARBALL="${TMPDIR}/rpi-linux.tar.gz"
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echo "Downloading tarball..."
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curl -fsSL -o "$TARBALL" "https://github.com/${REPO}/archive/${FULL_SHA}.tar.gz"
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echo "Computing checksums..."
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SHA256=$(shasum -a 256 "$TARBALL" | awk '{print $1}')
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SHA512=$(shasum -a 512 "$TARBALL" | awk '{print $1}')
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echo " sha256: $SHA256"
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echo " sha512: $SHA512"
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echo "Extracting kernel version from Makefile..."
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tar -xzf "$TARBALL" -C "$TMPDIR" "linux-${FULL_SHA}/Makefile"
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MAKEFILE="${TMPDIR}/linux-${FULL_SHA}/Makefile"
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V=$(awk '/^VERSION[[:space:]]*=/ {print $3; exit}' "$MAKEFILE")
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P=$(awk '/^PATCHLEVEL[[:space:]]*=/ {print $3; exit}' "$MAKEFILE")
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S=$(awk '/^SUBLEVEL[[:space:]]*=/ {print $3; exit}' "$MAKEFILE")
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KERNEL_VERSION="${V}.${P}.${S}"
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echo " kernel: $KERNEL_VERSION"
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COMMENT="# ${REF} branch, commit ${SHORT_SHA} (${COMMIT_DATE}), kernel ${KERNEL_VERSION}"
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update_field() {
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local file="$1" key="$2" value="$3"
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FIELD="$key" VALUE="$value" perl -i -pe '
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my $k = quotemeta($ENV{FIELD});
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s/^(\+\s*${k}:\s*).*/$1$ENV{VALUE}/;
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' "$file"
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}
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update_comment() {
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local file="$1"
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COMMENT="$COMMENT" perl -i -pe '
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s{^(\+\s*)#\s*\S+\s+branch,\s*commit\s+[0-9a-f]+\s*\([^)]*\),\s*kernel\s+\S+.*}
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{$1$ENV{COMMENT}};
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' "$file"
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}
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echo "Updating $PKGS_PATCH..."
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update_field "$PKGS_PATCH" "linux_version" "$SHORT_SHA"
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update_field "$PKGS_PATCH" "linux_sha256" "$SHA256"
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update_field "$PKGS_PATCH" "linux_sha512" "$SHA512"
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update_comment "$PKGS_PATCH"
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echo "Updating $SBC_PATCH..."
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update_field "$SBC_PATCH" "raspberrypi_kernel_version" "$SHORT_SHA"
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update_field "$SBC_PATCH" "raspberrypi_kernel_sha256" "$SHA256"
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update_field "$SBC_PATCH" "raspberrypi_kernel_sha512" "$SHA512"
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update_comment "$SBC_PATCH"
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echo "Done."
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