#!/usr/bin/env bash set -euo pipefail SCCACHE_VERSION="v0.16.0" # Use absolute path to avoid issues with working directory changes between steps SCCACHE_DIR="$(pwd)/target/sccache" install_sccache() { mkdir -p "$SCCACHE_DIR" local expected_version="sccache ${SCCACHE_VERSION#v}" local installed_version="" if [[ -x "${SCCACHE_DIR}/sccache" ]]; then if ! installed_version="$("${SCCACHE_DIR}/sccache" --version 2>/dev/null)"; then echo "Cached sccache binary is invalid; reinstalling" installed_version="" fi fi if [[ "${installed_version}" == "${expected_version}" ]]; then echo "sccache already cached: ${installed_version}" else if [[ -n "${installed_version}" ]]; then echo "Stopping cached ${installed_version} server before upgrading..." if ! "${SCCACHE_DIR}/sccache" --stop-server &>/dev/null; then echo "No running sccache server to stop" fi fi echo "Installing sccache ${SCCACHE_VERSION} from GitHub releases..." local os arch archive basename os="$(uname -s)" arch="$(uname -m)" case "${os}-${arch}" in Darwin-arm64) archive="sccache-${SCCACHE_VERSION}-aarch64-apple-darwin.tar.gz" ;; Darwin-x86_64) archive="sccache-${SCCACHE_VERSION}-x86_64-apple-darwin.tar.gz" ;; Linux-x86_64) archive="sccache-${SCCACHE_VERSION}-x86_64-unknown-linux-musl.tar.gz" ;; Linux-aarch64) archive="sccache-${SCCACHE_VERSION}-aarch64-unknown-linux-musl.tar.gz" ;; *) echo "Unsupported platform: ${os}-${arch}" exit 1 ;; esac basename="${archive%.tar.gz}" curl -fsSL "https://github.com/mozilla/sccache/releases/download/${SCCACHE_VERSION}/${archive}" | tar xz mv "${basename}/sccache" "${SCCACHE_DIR}/" rm -rf "${basename}" echo "Installed sccache: $("${SCCACHE_DIR}/sccache" --version)" fi # Verify the binary works before adding to path if ! "${SCCACHE_DIR}/sccache" --version &>/dev/null; then echo "ERROR: sccache binary at ${SCCACHE_DIR}/sccache is not executable or corrupted" rm -f "${SCCACHE_DIR}/sccache" exit 1 fi if [[ -n "${GITHUB_PATH:-}" ]]; then echo "${SCCACHE_DIR}" >> "$GITHUB_PATH" fi export PATH="${SCCACHE_DIR}:${PATH}" } configure_sccache() { if [[ -z "${R2_ACCOUNT_ID:-}" ]]; then echo "R2_ACCOUNT_ID not set, skipping sccache configuration" return fi echo "Configuring sccache with Cloudflare R2..." local bucket="${SCCACHE_BUCKET:-sccache-zed}" local key_prefix="${SCCACHE_KEY_PREFIX:-sccache/}" local base_dir="${GITHUB_WORKSPACE:-$(pwd)}" # Use the absolute path to sccache binary for RUSTC_WRAPPER to avoid # any PATH race conditions between GITHUB_PATH and GITHUB_ENV local sccache_bin="${SCCACHE_DIR}/sccache" # Set in current process export SCCACHE_ENDPOINT="https://${R2_ACCOUNT_ID}.r2.cloudflarestorage.com" export SCCACHE_BUCKET="${bucket}" export SCCACHE_REGION="auto" export SCCACHE_S3_KEY_PREFIX="${key_prefix}" export SCCACHE_BASEDIRS="${base_dir}" export AWS_ACCESS_KEY_ID="${R2_ACCESS_KEY_ID}" export AWS_SECRET_ACCESS_KEY="${R2_SECRET_ACCESS_KEY}" export RUSTC_WRAPPER="${sccache_bin}" # Also write to GITHUB_ENV for subsequent steps if [[ -n "${GITHUB_ENV:-}" ]]; then { echo "SCCACHE_ENDPOINT=${SCCACHE_ENDPOINT}" echo "SCCACHE_BUCKET=${SCCACHE_BUCKET}" echo "SCCACHE_REGION=${SCCACHE_REGION}" echo "SCCACHE_S3_KEY_PREFIX=${SCCACHE_S3_KEY_PREFIX}" echo "SCCACHE_BASEDIRS=${SCCACHE_BASEDIRS}" echo "AWS_ACCESS_KEY_ID=${AWS_ACCESS_KEY_ID}" echo "AWS_SECRET_ACCESS_KEY=${AWS_SECRET_ACCESS_KEY}" echo "RUSTC_WRAPPER=${RUSTC_WRAPPER}" } >> "$GITHUB_ENV" fi echo "✓ sccache configured with Cloudflare R2 (bucket: ${bucket})" } show_config() { echo "=== sccache configuration ===" echo "sccache version: $(sccache --version)" echo "RUSTC_WRAPPER: ${RUSTC_WRAPPER:-}" echo "SCCACHE_BUCKET: ${SCCACHE_BUCKET:-}" echo "SCCACHE_ENDPOINT: ${SCCACHE_ENDPOINT:-}" echo "SCCACHE_REGION: ${SCCACHE_REGION:-}" echo "SCCACHE_S3_KEY_PREFIX: ${SCCACHE_S3_KEY_PREFIX:-}" echo "SCCACHE_BASEDIRS: ${SCCACHE_BASEDIRS:-}" if [[ -n "${AWS_ACCESS_KEY_ID:-}" ]]; then echo "AWS_ACCESS_KEY_ID: " else echo "AWS_ACCESS_KEY_ID: " fi if [[ -n "${AWS_SECRET_ACCESS_KEY:-}" ]]; then echo "AWS_SECRET_ACCESS_KEY: " else echo "AWS_SECRET_ACCESS_KEY: " fi echo "=== sccache stats ===" sccache --show-stats || true } install_sccache configure_sccache show_config