feat: republish major tag on new npm version

Fixes #9

bin/set-major-version-tag.js

@@ -0,0 +1,41 @@
+#!/usr/bin/env node
+/* eslint-disable no-console */
+
+// Inspired by https://github.com/readmeio/rdme/blob/edc68c365e9f39f41a16cf389ee960bf71f6425e/bin/set-major-version-tag.js
+// https://github.com/readmeio/readme-micro/issues/9
+
+/**
+ * Sets major git tag as part of release process
+ *
+ * @example v7
+ */
+const { execSync } = require('child_process');
+
+// eslint-disable-next-line import/no-extraneous-dependencies
+const semverParse = require('semver/functions/parse');
+
+const pkg = require('../package.json');
+
+async function setMajorVersionTag() {
+  const parsedVersion = semverParse(pkg.version);
+
+  if (parsedVersion.prerelease.length) {
+    console.warn('Pre-release version, not setting major version tag');
+    return process.exit(0);
+  }
+
+  const cmd = `git tag v${parsedVersion.major} -f -m 'Top-level tag pointing to ${parsedVersion.version}'`;
+
+  console.log(`$ ${cmd}`);
+
+  try {
+    const stdout = execSync(cmd);
+    console.log(stdout.toString());
+    return process.exit(0);
+  } catch (e) {
+    console.error('Error running command', e);
+    return process.exit(1);
+  }
+}
+
+setMajorVersionTag();

package.json

@@ -17,7 +17,7 @@
     "test": "jest",
     "preversion": "echo $npm_package_version > .old-version.txt",
     "version": "sed -i '' \"s/$(cat .old-version.txt)/$npm_package_version/\" README.md && git add README.md",
-    "postversion": "rm -rf .old-version.txt"
+    "postversion": "rm -rf .old-version.txt && ./bin/set-major-version-tag.js"
   },
   "author": "",
   "license": "ISC",
@@ -37,7 +37,8 @@
     "eslint": "^8.37.0",
     "jest": "^29.5.0",
     "nock": "^13.3.0",
-    "prettier": "^2.8.7"
+    "prettier": "^2.8.7",
+    "semver": "^7.5.3"
   },
   "prettier": "@readme/eslint-config/prettier",
   "publishConfig": {