chore: add a release script

Author: collins-w

package.json

@@ -39,7 +39,8 @@
     "lint:fix": "pnpm prettier:fix && pnpm lint:check && pnpm prettier:check",
     "prettier:check": "prettier -u --check '**/*.{js,ts,tsx,md}' '!**/.nx/**'",
     "prettier:fix": "prettier -u --write '**/*.{js,ts,tsx,md}' '!**/.nx/**'",
-    "style": "pnpm lint:fix"
+    "style": "pnpm lint:fix",
+    "release": "node ./scripts/release.js"
   },
   "keywords": [
     "relayer",

scripts/release.js

@@ -0,0 +1,28 @@
+const path = require('path');
+const { exec, getExecOutput } = require('@actions/exec');
+
+const { version } = require('../package.json');
+const tag = `${version}`;
+
+process.chdir(path.join(__dirname, '..'));
+
+(async () => {
+  const { exitCode, stderr } = await getExecOutput(
+    `git`,
+    ['ls-remote', '--exit-code', 'origin', '--tags', `refs/tags/${tag}`],
+    {
+      ignoreReturnCode: true,
+    },
+  );
+  if (exitCode === 0) {
+    console.log(`Action is not being published because version ${tag} is already published`);
+    return;
+  }
+  if (exitCode !== 2) {
+    throw new Error(`git ls-remote exited with ${exitCode}:\n${stderr}`);
+  }
+
+  await exec('changeset', ['publish']);
+
+  await exec('changeset', ['tag']);
+})();