fix: hexo.locals.get('posts') doesn't show all posts

lib/hexo/index.ts

@@ -646,6 +646,9 @@ class Hexo extends EventEmitter {
     this.emit('generateBefore');
 
     // Run before_generate filters
+    // https://github.com/hexojs/hexo/issues/5287
+    // locals should be invalidated before before_generate filters because tags may use locals
+    this.locals.invalidate();
     return this.execFilter('before_generate', null, { context: this })
       .then(() => this._routerRefresh(this._runGenerators(), useCache)).then(() => {
         this.emit('generateAfter');

test/scripts/extend/tag.ts

@@ -1,10 +1,53 @@
+import { join } from 'path';
 import Tag from '../../../lib/extend/tag';
 import chai from 'chai';
+import Hexo from '../../../lib/hexo';
+import defaultConfig from '../../../lib/hexo/default_config';
+import posts from '../../../lib/plugins/processor/post';
+import Filter from '../../../lib/extend/filter';
+import renderPostFilter from '../../../lib/plugins/filter/before_generate/render_post';
+import { mkdirs, rmdir, writeFile } from 'hexo-fs';
+// @ts-ignore
+import Promise from 'bluebird';
 const should = chai.should();
 
+type PostParams = Parameters<ReturnType<typeof posts>['process']>
+type PostReturn = ReturnType<ReturnType<typeof posts>['process']>
+
 describe('Tag', () => {
   const tag = new Tag();
 
+  const baseDir = join(__dirname, 'post_test');
+  const hexo = new Hexo(baseDir);
+  const post = posts(hexo);
+  const process: (...args: PostParams) => Promise<PostReturn> = Promise.method(post.process.bind(hexo));
+  const { source } = hexo;
+  const { File } = source;
+
+  function newFile(options) {
+    const { path } = options;
+
+    options.path = (options.published ? '_posts' : '_drafts') + '/' + path;
+    options.source = join(source.base, options.path);
+
+    options.params = {
+      published: options.published,
+      path,
+      renderable: options.renderable
+    };
+
+    return new File(options);
+  }
+
+  before(async () => {
+    await mkdirs(baseDir);
+    hexo.init();
+  });
+
+  beforeEach(() => { hexo.config = Object.assign({}, defaultConfig); });
+
+  after(() => rmdir(baseDir));
+
   it('register()', async () => {
     const tag = new Tag();
 
@@ -180,4 +223,75 @@ describe('Tag', () => {
       spy.should.eql(true);
     });
   });
+
+  it.only('tag should get right locals', async () => {
+    let count = 0;
+    hexo.extend.filter = new Filter();
+    hexo.extend.tag = new Tag();
+    hexo.extend.tag.register('series', () => {
+      count = hexo.locals.get('posts').length;
+      return '';
+    }, {ends: false});
+    hexo.extend.filter.register('before_generate', renderPostFilter.bind(hexo));
+
+    const body1 = [
+      'title: "test1"',
+      'date: 2023-09-03 16:59:42',
+      'tags: foo',
+      '---',
+      '{% series %}'
+    ].join('\n');
+
+    const file = newFile({
+      path: 'test1.html',
+      published: true,
+      type: 'create',
+      renderable: true
+    });
+
+    const body2 = [
+      '---',
+      'title: test2',
+      'date: 2023-09-03 16:59:46',
+      'tags: foo',
+      '---'
+    ];
+
+    const file2 = newFile({
+      path: 'test2.html',
+      published: true,
+      type: 'create',
+      renderable: true
+    });
+
+    const body3 = [
+      'title: test3',
+      'date: 2023-09-03 16:59:49',
+      'tags: foo',
+      '---'
+    ];
+
+    const file3 = newFile({
+      path: 'test3.html',
+      published: true,
+      type: 'create',
+      renderable: true
+    });
+
+    await Promise.all([
+      writeFile(file.source, body1),
+      writeFile(file2.source, body2),
+      writeFile(file3.source, body3)
+    ]);
+
+    await Promise.all([
+      process(file),
+      process(file2),
+      process(file3)
+    ]);
+
+    await hexo._generate({ cache: false });
+
+    count.should.eql(3);
+  });
 });