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#!/usr/bin/env bash
# Copyright (c) 2026 ETH Zurich and University of Bologna.
# Licensed under the Apache License, Version 2.0, see LICENSE for details.
# SPDX-License-Identifier: Apache-2.0
set -euo pipefail
repo_root="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
pdk_root="$(realpath -m -- "$repo_root/ihp13/pdk")"
manifest="$repo_root/ihp13/pdk/pdk_manifest.csv"
check_only=0
gds_only=0
temporary_directory="$(mktemp -d)"
cleanup() {
rm -rf "$temporary_directory"
}
trap cleanup EXIT
usage() {
cat <<'EOF'
Usage: scripts/update_pdk.sh [--check] [--gds] [manifest]
Update public PDK files from a manifest with these columns:
source_type,source,revision,source_sha256,path,patch,output,sha256
source_type is github, tar, or local. GitHub rows download one pinned file.
Tar rows verify the archive digest before extracting path. Local rows only
verify Croc-owned files. --gds limits processing to GDS rows; --check
verifies existing files without downloading or modifying them.
EOF
}
while [[ $# -gt 0 ]]; do
case "$1" in
--check)
check_only=1
shift
;;
--gds)
gds_only=1
shift
;;
-h|--help)
usage
exit 0
;;
*)
manifest="$1"
shift
;;
esac
done
if [[ ! -f "$manifest" ]]; then
echo "[ERROR] Manifest not found: $manifest" >&2
exit 1
fi
verify_file() {
local output="$1"
local expected_hash="$2"
local actual_hash
[[ -f "$output" ]] || return 1
actual_hash="$(sha256sum "$output" | awk '{print $1}')"
[[ "$actual_hash" == "$expected_hash" ]]
}
while IFS=, read -r source_type source revision source_sha256 path patch_file output expected_hash; do
[[ "$source_type" == "source_type" || -z "$source_type" || "${source_type:0:1}" == "#" ]] && continue
[[ "$output" != /* ]] || {
echo "[ERROR] Manifest output must be below ihp13/pdk: $output" >&2
exit 1
}
output_path="$(realpath -m -- "$repo_root/$output")"
[[ "$output_path" == "$pdk_root/"* ]] || {
echo "[ERROR] Manifest output must be below ihp13/pdk: $output" >&2
exit 1
}
[[ "$gds_only" -eq 0 || "$output" == *.gds ]] || continue
if verify_file "$output_path" "$expected_hash"; then
echo "[INFO] Current: $output"
continue
fi
if [[ "$check_only" -eq 1 || "$source_type" == "local" ]]; then
echo "[ERROR] Hash mismatch or missing file: $output" >&2
exit 1
fi
temporary_file="$(mktemp "$temporary_directory/file.XXXXXX")"
case "$source_type" in
github)
url="https://raw.githubusercontent.com/$source/$revision/$path"
curl --fail --location --silent --show-error "$url" --output "$temporary_file"
;;
tar)
[[ -n "$source_sha256" ]] || {
echo "[ERROR] Tar source requires source_sha256: $output" >&2
exit 1
}
temporary_archive="$temporary_directory/$source_sha256"
if [[ ! -f "$temporary_archive" ]]; then
curl --fail --location --silent --show-error "$source" --output "$temporary_archive.tmp"
archive_hash="$(sha256sum "$temporary_archive.tmp" | awk '{print $1}')"
if [[ "$archive_hash" != "$source_sha256" ]]; then
echo "[ERROR] Archive hash mismatch: $source" >&2
exit 1
fi
mv "$temporary_archive.tmp" "$temporary_archive"
fi
tar --extract --to-stdout --file "$temporary_archive" "$path" > "$temporary_file"
;;
*)
echo "[ERROR] Unknown manifest source type: $source_type" >&2
exit 1
;;
esac
if [[ -n "$patch_file" ]]; then
patch_path="$repo_root/$patch_file"
[[ -f "$patch_path" ]] || {
echo "[ERROR] Patch not found: $patch_file" >&2
exit 1
}
patch --batch --silent "$temporary_file" < "$patch_path"
fi
temporary_hash="$(sha256sum "$temporary_file" | awk '{print $1}')"
if [[ "$temporary_hash" != "$expected_hash" ]]; then
echo "[ERROR] Hash mismatch after update: $output" >&2
echo "[ERROR] Expected: $expected_hash" >&2
echo "[ERROR] Actual: $temporary_hash" >&2
exit 1
fi
mkdir -p "$(dirname "$output_path")"
mv "$temporary_file" "$output_path"
echo "[INFO] Updated: $output"
done < "$manifest"
if [[ "$check_only" -eq 0 ]]; then
"$repo_root/scripts/setup_technology.sh" --quiet
fi