Add auth and ci

lib/auth.js

@@ -0,0 +1,40 @@
+"use strict";
+var __importStar = (this && this.__importStar) || function (mod) {
+    if (mod && mod.__esModule) return mod;
+    var result = {};
+    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
+    result["default"] = mod;
+    return result;
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+const core = __importStar(require("@actions/core"));
+const path = __importStar(require("path"));
+const fs = __importStar(require("fs"));
+const os = __importStar(require("os"));
+function setNpmrc(registryUrl, registryToken, authFile) {
+    let projectNpmrc = path.resolve(process.cwd(), '.npmrc');
+    if (authFile) {
+        projectNpmrc = path.resolve(process.cwd(), authFile);
+    }
+    let newContents = '';
+    if (fs.existsSync(projectNpmrc)) {
+        const curContents = fs.readFileSync(projectNpmrc, 'utf8');
+        curContents.split(os.EOL).forEach(line => {
+            // Add current contents unless they are setting the registry
+            if (!line.startsWith('registry')) {
+                newContents += line + os.EOL;
+            }
+        });
+    }
+    newContents +=
+        'registry=' +
+            registryUrl +
+            os.EOL +
+            'always-auth=true' +
+            os.EOL +
+            registryUrl +
+            ':_authToken=${NPM_TOKEN}';
+    fs.writeFileSync(projectNpmrc, newContents);
+    core.exportSecret('NPM_TOKEN', registryToken);
+}
+exports.setNpmrc = setNpmrc;