fix: use correct V8 tag for minor updates (#695)

Refs: #675

Author: targos

lib/update-v8/majorUpdate.js

@@ -11,7 +11,8 @@ import {
   filterForVersion,
   addToGitignore,
   replaceGitignore,
-  removeDirectory
+  removeDirectory,
+  isVersionString
 } from './util.js';
 import applyNodeChanges from './applyNodeChanges.js';
 import { chromiumGit, v8Deps } from './constants.js';
@@ -38,14 +39,13 @@ export default function majorUpdate() {
   };
 };
 
-const versionReg = /^\d+(\.\d+)+$/;
 function checkoutBranch() {
   return {
     title: 'Checkout V8 branch',
     task: async(ctx) => {
       let version = ctx.branch;
       await ctx.execGitV8('checkout', 'origin/main');
-      if (!versionReg.test(version)) {
+      if (!isVersionString(version)) {
         // try to get the latest tag
         const res = await ctx.execGitV8(
           'tag',
@@ -54,7 +54,7 @@ function checkoutBranch() {
           '--sort',
           'version:refname'
         );
-        const tags = res.stdout.split('\n').filter(tag => versionReg.test(tag));
+        const tags = res.stdout.split('\n').filter(isVersionString);
         const lastTag = tags[tags.length - 1];
         if (lastTag) version = lastTag;
         if (version.split('.').length === 3) {

lib/update-v8/minorUpdate.js

@@ -6,6 +6,7 @@ import { execa } from 'execa';
 import { Listr } from 'listr2';
 
 import { getCurrentV8Version } from './common.js';
+import { isVersionString } from './util.js';
 
 export default function minorUpdate() {
   return {
@@ -34,7 +35,7 @@ function getLatestV8Version() {
         cwd: ctx.v8Dir,
         encoding: 'utf8'
       });
-      const tags = toSortedArray(result.stdout);
+      const tags = filterAndSortTags(result.stdout);
       ctx.latestVersion = tags[0];
     }
   };
@@ -79,10 +80,10 @@ async function applyPatch(ctx, latestStr) {
   }
 }
 
-function toSortedArray(tags) {
+function filterAndSortTags(tags) {
   return tags
     .split(/[\r\n]+/)
-    .filter((tag) => tag !== '')
+    .filter(isVersionString)
     .map((tag) => tag.split('.'))
     .sort(sortVersions);
 }

lib/update-v8/util.js

@@ -56,3 +56,7 @@ export function removeDirectory(path) {
     return fs.rmdir(path, { recursive: true });
   }
 }
+
+export function isVersionString(str) {
+  return /^\d+(\.\d+)+$/.test(str);
+}