feat(): make secrets parameter optional (#299)

src/action.js

@@ -14,7 +14,7 @@ async function exportSecrets() {
     const exportEnv = core.getInput('exportEnv', { required: false }) != 'false';
     const exportToken = (core.getInput('exportToken', { required: false }) || 'false').toLowerCase() != 'false';
 
-    const secretsInput = core.getInput('secrets', { required: true });
+    const secretsInput = core.getInput('secrets', { required: false });
     const secretRequests = parseSecretsInput(secretsInput);
 
     const vaultMethod = (core.getInput('method', { required: false }) || 'token').toLowerCase();
@@ -103,6 +103,10 @@ async function exportSecrets() {
  * @param {string} secretsInput
  */
 function parseSecretsInput(secretsInput) {
+    if (!secretsInput) {
+      return []
+    }
+
     const secrets = secretsInput
         .split(';')
         .filter(key => !!key)

src/action.test.js

@@ -331,4 +331,13 @@ with blank lines
         expect(command.issue).toBeCalledWith('add-mask', 'with blank lines');
         expect(core.setOutput).toBeCalledWith('key', multiLineString);
     })
+
+  it('export only Vault token, no secrets', async () => {
+    mockExportToken("true")
+
+    await exportSecrets();
+
+    expect(core.exportVariable).toBeCalledTimes(1);
+    expect(core.exportVariable).toBeCalledWith('VAULT_TOKEN', 'EXAMPLE');
+  })
 });