Add release.sh helper script

Author: jamiew

release.sh

@@ -0,0 +1,89 @@
+#!/bin/bash
+set -euo pipefail
+
+# Release script for spotify-mcp
+# Usage: ./release.sh [--dry-run]
+
+DRY_RUN=false
+if [[ "${1:-}" == "--dry-run" ]]; then
+    DRY_RUN=true
+    echo "=== DRY RUN MODE ==="
+fi
+
+# Get version from pyproject.toml
+VERSION=$(grep -E "^version = " pyproject.toml | sed 's/version = "\(.*\)"/\1/')
+TAG="v$VERSION"
+
+echo "Releasing spotify-mcp $TAG"
+echo ""
+
+# Check for uncommitted changes
+if [[ -n "$(git status --porcelain)" ]]; then
+    echo "ERROR: Uncommitted changes detected. Commit or stash them first."
+    exit 1
+fi
+
+# Check if tag exists locally
+if ! git rev-parse "$TAG" >/dev/null 2>&1; then
+    echo "ERROR: Tag $TAG doesn't exist locally."
+    echo "Create it with: git tag -a $TAG -m 'Release notes here'"
+    exit 1
+fi
+
+# Check if release already exists on GitHub
+if gh release view "$TAG" >/dev/null 2>&1; then
+    echo "ERROR: Release $TAG already exists on GitHub."
+    exit 1
+fi
+
+# Run quality checks
+echo "Running quality checks..."
+uv run mypy src/
+uv run pytest
+echo "Quality checks passed!"
+echo ""
+
+# Build the package
+echo "Building package..."
+rm -rf dist/
+uv build
+echo "Build complete!"
+echo ""
+
+# Get tag annotation for release notes
+RELEASE_NOTES=$(git tag -l --format='%(contents)' "$TAG")
+
+if [[ -z "$RELEASE_NOTES" ]]; then
+    echo "ERROR: Tag $TAG has no annotation. Use annotated tags:"
+    echo "  git tag -a $TAG -m 'Release notes here'"
+    exit 1
+fi
+
+echo "Release notes:"
+echo "---"
+echo "$RELEASE_NOTES"
+echo "---"
+echo ""
+
+if $DRY_RUN; then
+    echo "[DRY RUN] Would push commits and tags"
+    echo "[DRY RUN] Would create GitHub release $TAG"
+    echo "[DRY RUN] Would upload: $(ls dist/)"
+    exit 0
+fi
+
+# Push commits and tags
+echo "Pushing to GitHub..."
+git push
+git push --tags
+
+# Create GitHub release with assets
+echo "Creating GitHub release..."
+gh release create "$TAG" \
+    --title "$TAG" \
+    --notes "$RELEASE_NOTES" \
+    dist/*
+
+echo ""
+echo "Released $TAG!"
+echo "https://github.com/$(gh repo view --json nameWithOwner -q .nameWithOwner)/releases/tag/$TAG"