Support ignore tag and path

lib/generator.js

@@ -5,6 +5,8 @@ const env = new nunjucks.Environment();
 const { join } = require('path');
 const { readFileSync } = require('fs');
 const { encodeURL, gravatar, full_url_for } = require('hexo-util');
+const { isIgnored, ignoreSettings } = require('./ignore');
+
 
 env.addFilter('uriencode', str => {
   return encodeURL(str);
@@ -18,6 +20,7 @@ module.exports = function(locals, type, path) {
   const { config } = this;
   const { email, feed, url: urlCfg } = config;
   const { icon: iconCfg, limit, order_by, template: templateCfg, type: typeCfg } = feed;
+  const ignore = ignoreSettings(feed);
 
   env.addFilter('formatUrl', str => {
     return full_url_for.call(this, str);
@@ -32,7 +35,7 @@ module.exports = function(locals, type, path) {
 
   let posts = locals.posts.sort(order_by || '-date');
   posts = posts.filter(post => {
-    return post.draft !== true;
+    return post.draft !== true && !isIgnored(post, ignore);
   });
 
   if (posts.length <= 0) {

lib/ignore.js

@@ -0,0 +1,54 @@
+'use strict';
+
+/* Source: 
+https://github.com/alexbruno/hexo-generator-json-content
+https://github.com/alexbruno/hexo-generator-json-content/blob/90745de5330933f97f4124dcc90c027b061c5819/src/modules/ignore.js
+*/
+
+function ignoreSettings(cfg) {
+    const ignore = cfg.ignore ? cfg.ignore : {};
+
+    ignore.paths = ignore.paths
+      ? ignore.paths.map((path) => path.toLowerCase())
+      : [];
+
+    ignore.tags = ignore.tags
+      ? ignore.tags.map((tag) => tag.replace('#', '').toLowerCase())
+      : [];
+
+    return ignore;
+}
+
+function isIgnored(content, settings) {
+    if (content.feed === false) {
+        return true;
+    }
+
+    if (content.feed === true) {
+        return false;
+    }
+
+    const pathIgnored = settings.paths.find((path) => content.path.includes(path));
+
+    if (pathIgnored) {
+        return true;
+    }
+
+    const tags = content.tags ? content.tags.map(mapTags) : [];
+    const tagIgnored = tags.filter((tag) => settings.tags.includes(tag)).length;
+
+    if (tagIgnored) {
+        return true;
+    }
+
+    return false;
+}
+
+function mapTags(tag) {
+    return typeof tag === 'object' ? tag.name.toLowerCase() : tag;
+}
+
+module.exports = {
+    isIgnored: isIgnored,
+    ignoreSettings: ignoreSettings
+};