reenable stats extensions for Preview/Chatbot staging

with optimization (memory) for the component stats wordcount

Author: osfameron

antora-playbook-staging-chatbot.diff.yml

@@ -1,7 +1,8 @@
 antora:
   extensions:
   - ./lib/report-tree.js
-  # - ./lib/site-stats-extension.js
+  - ./lib/site-stats-extension.js
+  - ./lib/component-stats.js
 
 site:
   title: Couchbase Docs Staging Chatbot

antora-playbook-staging-chatbot.yml

@@ -26,6 +26,8 @@ antora:
     - ./lib/embargo.js
     - ./lib/antora-component-version-rank.js
     - ./lib/report-tree.js
+    - ./lib/site-stats-extension.js
+    - ./lib/component-stats.js
 site:
   title: Couchbase Docs Staging Chatbot
   url: https://chatbot-staging.docs-test.couchbase.com
@@ -139,16 +141,16 @@ content:
         - main
     - url: https://github.com/couchbase/couchbase-operator
       branches:
+        - 2.9.x
         - 2.8.x
         - 2.7.x
-        - 2.6.x
       start_path: docs/user
     - url: https://github.com/couchbase/docs-operator
       branches:
         - release/2.8.1
+        - release/2.9
         - release/2.8
         - release/2.7
-        - release/2.6
     - url: https://github.com/couchbaselabs/observability
       branches:
         - 0.2.x

antora-playbook.preview.diff.yml

@@ -5,8 +5,8 @@ antora:
   extensions:
   - ./lib/preview.js
   - ./lib/report-tree.js
-  # - ./lib/site-stats-extension.js
-  # - ./lib/component-stats.js
+  - ./lib/site-stats-extension.js
+  - ./lib/component-stats.js
 
 site:
   title: Couchbase Docs Preview

antora-playbook.preview.yml

@@ -24,6 +24,8 @@ antora:
     - ./lib/antora-component-version-rank.js
     - ./lib/preview.js
     - ./lib/report-tree.js
+    - ./lib/site-stats-extension.js
+    - ./lib/component-stats.js
 site:
   url: https://docs.couchbase.com
   start_page: home::index.adoc
@@ -101,19 +103,19 @@ content:
         - main
     - url: https://github.com/couchbase/couchbase-operator
       branches:
+        - 2.9.x
         - 2.8.x
         - 2.7.x
         - 2.6.x
         - 2.5.x
-        - 2.4.x
       start_path: docs/user
     - url: https://github.com/couchbase/docs-operator
       branches:
+        - release/2.9
         - release/2.8
         - release/2.7
         - release/2.6
         - release/2.5
-        - release/2.4
     - url: https://github.com/couchbaselabs/observability
       branches:
         - 0.2.x

lib/component-stats.js

@@ -2,6 +2,9 @@ const {JSDOM} = require('jsdom')
 
 module.exports.register = function () {
   this.once('sitePublished', ({ playbook, contentCatalog }) => {
+
+    console.time('get-component-stats')
+
     contentCatalog.getComponents().forEach((component) => {
       component.versions.forEach((componentVersion, index) => {
         const pages = contentCatalog.getPages(it => it.src.component === componentVersion.name && it.src.version === componentVersion.version)
@@ -22,14 +25,28 @@ module.exports.register = function () {
         })
       })
     })
+
+    console.timeEnd('get-component-stats')
   })
 }
 
 function wordcount (words) {
   // very dumb wordcount function
   // won't deal gracefully with non-western scripts (which is fine for our use-case
   // as we don't have material content in those languages)
-  return words.split(/\s+/).length
+
+  // we are doing essentially the moral equivalent of:
+  // // return words.split(/\s+/).length
+  // but we iterate the regexp, to avoid building up a huge data-structure
+  // e.g. we trade off some speed in order to bound memory usage.
+
+  const re = /\s+/g
+
+  let count = 0
+  while (re.exec(words)) {
+    ++count;
+  }
+  return count
 }
 
 function sum (nums) {