Fix/64 add hreflang tag (#66)

rawic · Feb 19, 2023 · c1d12b1 · c1d12b1
1 parent 5e55398
commit c1d12b1
Showing 1 changed file with 27 additions and 4 deletions.
diff --git a/gatsby-config.js b/gatsby-config.js
@@ -1,6 +1,14 @@
 const { languages, defaultLanguage } = require('./languages');
 const path = require('path');
-const siteUrl = process.env.URL || `https://rawic.me`;
+// const siteUrl = process.env.URL || `https://rawic.me`;
+const {
+    NODE_ENV,
+    URL: NETLIFY_SITE_URL = 'https://rawic.me/',
+    DEPLOY_PRIME_URL: NETLIFY_DEPLOY_URL = NETLIFY_SITE_URL,
+    CONTEXT: NETLIFY_ENV = NODE_ENV,
+} = process.env;
+const isNetlifyProduction = NETLIFY_ENV === 'production';
+const siteUrl = isNetlifyProduction ? NETLIFY_SITE_URL : NETLIFY_DEPLOY_URL;
 
 module.exports = {
     siteMetadata: {
@@ -197,9 +205,24 @@ module.exports = {
         {
             resolve: 'gatsby-plugin-robots-txt',
             options: {
-                host: 'https://rawic.me',
-                sitemap: 'https://rawic.me/sitemap-index.xml',
-                policy: [{ userAgent: '*', allow: '/' }],
+                resolveEnv: () => NETLIFY_ENV,
+                env: {
+                    production: {
+                        policy: [{ userAgent: '*', allow: '/', disallow: ['/*.pdf'] }],
+                        host: 'https://rawic.me',
+                        sitemap: 'https://rawic.me/sitemap-index.xml',
+                    },
+                    'branch-deploy': {
+                        policy: [{ userAgent: '*', disallow: ['/'] }],
+                        sitemap: null,
+                        host: null,
+                    },
+                    'deploy-preview': {
+                        policy: [{ userAgent: '*', disallow: ['/'] }],
+                        sitemap: null,
+                        host: null,
+                    },
+                },
             },
         },
         'gatsby-plugin-remove-serviceworker',