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.github/workflows/scripts/upload-cli-to-r2.sh

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+#!/usr/bin/env bash
+set -euo pipefail
+
+# Upload CLI builds to R2 with retry logic
+# Usage: ./upload-cli-to-r2.sh <cli-version>
+
+if [[ $# -ne 1 ]]; then
+  echo "Usage: $0 <cli-version> (e.g., cli/v1.0.0)"
+  exit 1
+fi
+CLI_TAG="$1"
+# Validate tag format: must be cli/vX.Y.Z or cli/vX.Y.Z-prerelease
+if [[ ! "$CLI_TAG" =~ ^cli/v[0-9]+\.[0-9]+\.[0-9]+(-[a-zA-Z0-9.]+)?$ ]]; then
+  echo "❌ Invalid tag format: $CLI_TAG"
+  echo "   Expected format: cli/vX.Y.Z or cli/vX.Y.Z-prerelease (e.g., cli/v1.0.0, cli/v1.0.0-rc.1)"
+  exit 1
+fi
+if [[ ! -d "./dist" ]]; then
+  echo "❌ ./dist not found. Build artifacts must be present before upload."
+  exit 1
+fi
+: "${R2_ENDPOINT:?R2_ENDPOINT env var is required}"
+: "${R2_BUCKET:?R2_BUCKET env var is required}"
+
+# Strip 'cli/' prefix from version
+VERSION_ONLY=${CLI_TAG#cli/v}
+CLI_VERSION="v${VERSION_ONLY}"
+printf '%s' "$CLI_VERSION" > "./dist/version.txt"
+R2_ENDPOINT="$(echo "$R2_ENDPOINT" | tr -d '[:space:]')"
+
+echo "📤 Uploading CLI binaries for version: $CLI_VERSION"
+
+# Function to upload with retry
+upload_with_retry() {
+  local source_path="$1"
+  local dest_path="$2"
+  local max_retries=3
+
+  for attempt in $(seq 1 $max_retries); do
+    echo "🔄 Attempt $attempt/$max_retries: Uploading to $dest_path"
+
+    if aws s3 sync "$source_path" "$dest_path" \
+       --endpoint-url "$R2_ENDPOINT" \
+       --profile "${R2_AWS_PROFILE:-R2}" \
+       --no-progress \
+       --delete; then
+      echo "✅ Upload successful to $dest_path"
+      return 0
+    else
+      echo "⚠️ Attempt $attempt failed"
+      if [ $attempt -lt $max_retries ]; then
+        delay=$((2 ** attempt))
+        echo "🕐 Waiting ${delay}s before retry..."
+        sleep $delay
+      fi
+    fi
+  done
+
+  echo "❌ All $max_retries attempts failed for $dest_path"
+  return 1
+}
+
+# Upload to versioned path
+if ! upload_with_retry "./dist/" "s3://$R2_BUCKET/bifrost-cli/$CLI_VERSION/"; then
+  exit 1
+fi
+
+# Check if this is a prerelease version (semver: presence of a hyphen denotes pre-release)
+if [[ "$CLI_VERSION" == *-* ]]; then
+  echo "🔍 Detected prerelease version: $CLI_VERSION"
+  echo "⏭️ Skipping upload to latest/ for prerelease"
+else
+  echo "🔍 Detected stable release: $CLI_VERSION"
+
+  # Small delay between uploads (configurable; default 2s)
+  sleep "${INTER_UPLOAD_SLEEP_SECONDS:-2}"
+
+  # Upload to latest path
+  echo "📤 Uploading to latest/"
+  if ! upload_with_retry "./dist/" "s3://$R2_BUCKET/bifrost-cli/latest/"; then
+    exit 1
+  fi
+fi
+
+echo "🎉 All CLI binaries uploaded successfully to R2"