Add prebuilt update path

scripts/package-release.sh

@@ -0,0 +1,52 @@
+#!/usr/bin/env sh
+set -eu
+
+repo_root="$(CDPATH= cd -- "$(dirname -- "$0")/.." && pwd)"
+cd "$repo_root"
+
+out_dir="${DOSH_PACKAGE_DIR:-target/dosh-release}"
+version="${DOSH_VERSION:-$(sed -n 's/^version = "\(.*\)"/\1/p' Cargo.toml | sed -n '1p')}"
+
+normalize_os() {
+  case "$(uname -s)" in
+    Darwin) printf '%s\n' macos ;;
+    Linux) printf '%s\n' linux ;;
+    FreeBSD) printf '%s\n' freebsd ;;
+    *) uname -s | tr '[:upper:]' '[:lower:]' ;;
+  esac
+}
+
+normalize_arch() {
+  case "$(uname -m)" in
+    x86_64|amd64) printf '%s\n' x86_64 ;;
+    arm64|aarch64) printf '%s\n' aarch64 ;;
+    armv7l) printf '%s\n' armv7 ;;
+    *) uname -m | tr '[:upper:]' '[:lower:]' ;;
+  esac
+}
+
+os="$(normalize_os)"
+arch="$(normalize_arch)"
+artifact="dosh-$os-$arch.tar.gz"
+versioned_artifact="dosh-$version-$os-$arch.tar.gz"
+stage="$out_dir/stage/dosh"
+
+cargo build --release
+
+rm -rf "$stage"
+mkdir -p "$stage/bin" "$out_dir"
+for bin in dosh-client dosh-server dosh-auth dosh-bench; do
+  if [ -f "target/release/$bin" ]; then
+    install -m 0755 "target/release/$bin" "$stage/bin/$bin"
+  fi
+done
+printf '%s\n' "$version" >"$stage/VERSION"
+
+tar -C "$out_dir/stage" -czf "$out_dir/$artifact" dosh
+cp "$out_dir/$artifact" "$out_dir/$versioned_artifact"
+
+cat <<EOF
+Wrote:
+  $out_dir/$artifact
+  $out_dir/$versioned_artifact
+EOF