Automate Java SDK releases

.github/scripts/package-native-release.sh

@@ -0,0 +1,58 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Packages each native test server binary into a reproducible release archive.
+: "${RELEASE_VERSION:?RELEASE_VERSION is required.}"
+
+native_directory=${1:?Native artifact directory is required.}
+asset_directory=${2:?Release asset directory is required.}
+platforms=(
+  linux_amd64_musl
+  linux_amd64
+  macOS_amd64
+  macOS_arm64
+  linux_arm64
+  windows_amd64
+)
+
+native_directory=$(cd "$native_directory" && pwd)
+mkdir -p "$asset_directory"
+asset_directory=$(cd "$asset_directory" && pwd)
+staging_directory=$(mktemp -d)
+trap 'rm -rf "$staging_directory"' EXIT
+
+for platform in "${platforms[@]}"; do
+  source_directory="$native_directory/release-native-$platform"
+  mapfile -t binaries < <(
+    find "$source_directory" -type f -name 'temporal-test-server*'
+  )
+  if [[ "${#binaries[@]}" -ne 1 ]]; then
+    echo "::error::Expected one native executable in $source_directory."
+    exit 1
+  fi
+
+  archive_root="temporal-test-server_${RELEASE_VERSION}_${platform}"
+  package_directory="$staging_directory/$archive_root"
+  mkdir "$package_directory"
+  if [[ "$platform" == windows_* ]]; then
+    executable="$package_directory/temporal-test-server.exe"
+    install -m 0755 "${binaries[0]}" "$executable"
+    touch -t 198001010000 "$package_directory" "$executable"
+    (
+      cd "$staging_directory"
+      zip -X -qr "$asset_directory/$archive_root.zip" "$archive_root"
+    )
+  else
+    executable="$package_directory/temporal-test-server"
+    install -m 0755 "${binaries[0]}" "$executable"
+    touch -t 198001010000 "$package_directory" "$executable"
+    COPYFILE_DISABLE=1 tar -cf - -C "$staging_directory" "$archive_root" \
+      | gzip -n > "$asset_directory/$archive_root.tar.gz"
+  fi
+  rm -rf "$package_directory"
+done
+
+(
+  cd "$asset_directory"
+  sha256sum ./*.tar.gz ./*.zip | sort -k2 > SHA256SUMS
+)