feat(route): add fish shell release notes (DIYgod#12139)

* feat(route): add fish shell release notes

* fix(route): fish shell release notes

* fix(route): fish shell release notes
---------

docs/en/program-update.md

@@ -238,6 +238,12 @@ Language
 
 <RouteEn author="DIYgod" example="/firefox/addons/rsshub-radar" path="/firefox/addons/:id" :paramsDesc="['Add-ons id, can be found in add-ons url']"/>
 
+## fish shell
+
+### Release Notes
+
+<RouteEn author="x2cf" example="/fishshell" path="/fishshell" radar="1" />
+
 ## FossHub
 
 ### Software Update

docs/program-update.md

@@ -270,6 +270,12 @@ pageClass: routes
 
 <Route author="DIYgod" example="/firefox/addons/rsshub-radar" path="/firefox/addons/:id" :paramsDesc="['附加组件 id, 可在应用页 URL 中找到']" />
 
+## fish shell
+
+### Release Notes
+
+<Route author="x2cf" example="/fishshell" path="/fishshell" radar="1" />
+
 ## FossHub
 
 ### Software Update

lib/v2/fishshell/index.js

@@ -0,0 +1,27 @@
+const cheerio = require('cheerio');
+const got = require('@/utils/got');
+const config = require('@/config').value;
+const { parseDate } = require('@/utils/parse-date');
+
+module.exports = async (ctx) => {
+    const link = 'https://fishshell.com/docs/current/relnotes.html';
+    const data = await ctx.cache.tryGet(link, async () => (await got(link)).data, config.cache.contentExpire, false);
+    const $ = cheerio.load(data);
+    ctx.state.data = {
+        link,
+        title: 'Release notes — fish-shell',
+        language: 'en',
+        item: $('#release-notes > section')
+            .map((_, item) => {
+                const title = $(item).find('h2').contents().first().text();
+                const date = title.match(/\(released (.+?)\)/)?.[1];
+                return {
+                    title,
+                    link: new URL($(item).find('a').attr('href'), link).href,
+                    pubDate: date ? parseDate(date, 'MMMM D, YYYY') : undefined,
+                    description: $(item).html(),
+                };
+            })
+            .get(),
+    };
+};

lib/v2/fishshell/maintainer.js

@@ -0,0 +1,3 @@
+module.exports = {
+    '/': ['x2cf'],
+};

lib/v2/fishshell/radar.js

@@ -0,0 +1,13 @@
+module.exports = {
+    'fishshell.com': {
+        _name: 'fish shell',
+        '.': [
+            {
+                title: 'Release Notes',
+                docs: 'https://docs.rsshub.app/program-update.html#fish-shell',
+                source: ['/'],
+                target: '/fishshell',
+            },
+        ],
+    },
+};

lib/v2/fishshell/router.js

@@ -0,0 +1,3 @@
+module.exports = function (router) {
+    router.get('/', require('./index'));
+};