Updates

scripts/ci-setup-go.sh

@@ -0,0 +1,77 @@
+#!/usr/bin/env bash
+# Install Go for CI without actions/setup-go (Gitea runners often cannot
+# reach github.com/actions/go-versions reliably).
+set -euo pipefail
+
+GO_VERSION="${GO_VERSION:-1.24.5}"
+
+go_ok() {
+	command -v go >/dev/null 2>&1 || return 1
+	local ver
+	ver="$(go env GOVERSION 2>/dev/null || go version | awk '{print $3}')"
+	ver="${ver#go}"
+	local major minor
+	major="${ver%%.*}"
+	minor="${ver#*.}"; minor="${minor%%.*}"
+	[[ "$major" -gt 1 || ( "$major" -eq 1 && "$minor" -ge 24 ) ]]
+}
+
+if go_ok; then
+	echo "Using existing Go: $(go version)"
+	exit 0
+fi
+
+case "$(uname -m)" in
+x86_64) GOARCH=amd64 ;;
+aarch64 | arm64) GOARCH=arm64 ;;
+*)
+	echo "unsupported architecture: $(uname -m)" >&2
+	exit 1
+	;;
+esac
+
+TARBALL="go${GO_VERSION}.linux-${GOARCH}.tar.gz"
+URLS=(
+	"https://go.dev/dl/${TARBALL}"
+	"https://dl.google.com/go/${TARBALL}"
+)
+
+tmpdir="$(mktemp -d)"
+trap 'rm -rf "$tmpdir"' EXIT
+
+downloaded=0
+for url in "${URLS[@]}"; do
+	echo "Downloading Go ${GO_VERSION} from ${url}"
+	if curl -fsSL --connect-timeout 30 --max-time 600 --retry 5 --retry-delay 10 \
+		-o "${tmpdir}/${TARBALL}" "${url}"; then
+		downloaded=1
+		break
+	fi
+	echo "download failed: ${url}" >&2
+done
+
+if [[ "$downloaded" -ne 1 ]]; then
+	echo "could not download Go ${GO_VERSION}" >&2
+	exit 1
+fi
+
+tar -xzf "${tmpdir}/${TARBALL}" -C "${tmpdir}"
+
+toolcache="${RUNNER_TOOL_CACHE:-/opt/hostedtoolcache}"
+install_dir="${toolcache}/go/${GO_VERSION}/${GOARCH}"
+rm -rf "${install_dir}"
+mkdir -p "$(dirname "${install_dir}")"
+mv "${tmpdir}/go" "${install_dir}"
+
+bin_dir="${install_dir}/bin"
+echo "${bin_dir}" >>"${GITHUB_PATH:-/dev/null}"
+{
+	echo "GOROOT=${install_dir}"
+	echo "GOTOOLCHAIN=local"
+} >>"${GITHUB_ENV:-/dev/null}"
+
+export PATH="${bin_dir}:${PATH}"
+export GOROOT="${install_dir}"
+export GOTOOLCHAIN=local
+
+echo "Installed $(go version) to ${install_dir}"