Add release script to help others more easily release

Signed-off-by: Sora Morimoto <sora@morimoto.io>

scripts/release.sh

@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+
+function Release() {
+  local MAJOR_VERSION="$1"
+  local FULL_VERSION="$2"
+
+  if [ -z "$MAJOR_VERSION" ] || [ -z "$FULL_VERSION" ]; then
+    echo "Usage: release.sh [MAJOR_VERSION] [FULL_VERSION]"
+    echo "Example: release.sh v1 v1.0.0"
+    exit 1
+  fi
+
+  echo "Delete a major version tag: $MAJOR_VERSION"
+  git tag -d "$MAJOR_VERSION"
+  git push origin ":$MAJOR_VERSION"
+
+  echo "Create a major version tag: $MAJOR_VERSION"
+  git tag "$MAJOR_VERSION"
+
+  echo "Create a full version tag: $FULL_VERSION"
+  git tag "$FULL_VERSION"
+
+  echo "Push tags"
+  git push --tags
+}
+
+Release "$1" "$2"