scripts/build-index: Fix up script

scripts/README.md

@@ -11,7 +11,7 @@ This section contains a summary of the scripts available in this directory. For
 
 - [pdf](pdf/README.md) directory contains the `render.py` and `build-pdf.sh` script and related resources to generate a PDF document of tldr-pages for a specific language or platform (or both).
 - [build.sh](build.sh) script builds the ZIP archives of the `pages` directory.
-- [build-index.sh](build-index.sh) script builds the index of available pages.
+- [build-index.js](build-index.js) script builds the index of available pages.
 - [check-pr.sh](check-pr.sh) script checks the page's syntax and performs various checks on the PR.
 - [deploy.sh](deploy.sh) script deploys the ZIP and PDF archives to the static website repository.
 - [send-to-bot.py](send-to-bot.py) is a Python script that sends the build or test output to tldr-bot.

scripts/build-index.js

@@ -3,17 +3,18 @@
 'use strict';
 
 const { glob } = require('glob');
+const { sep } = require('path');
 
 function parsePlatform(pagefile) {
-  return pagefile.split(/\//)[1];
+  return pagefile.split(sep)[1];
 }
 
 function parsePagename(pagefile) {
-  return pagefile.split(/\//)[2].replace(/\.md$/, '');
+  return pagefile.split(sep)[2].replace(/\.md$/, '');
 }
 
 function parseLanguage(pagefile) {
-  let pagesFolder = pagefile.split(/\//)[0];
+  let pagesFolder = pagefile.split(sep)[0];
   return pagesFolder == 'pages' ? 'en' : pagesFolder.replace(/^pages\./, '');
 }
 
@@ -33,7 +34,7 @@ function buildPagesIndex(files) {
       }
 
       const targets = index[page].targets;
-      const exists = targets.some((t) => {return t.platform === os && t.language === language});
+      const exists = targets.some((t) => t.os === os && t.language === language);
       if (!exists) {
         targets.push({os, language})
       }
@@ -79,6 +80,6 @@ function saveIndex(index) {
   process.exit(0);
 }).catch((err) => {
   console.error('ERROR building index!');
-  console.error(er);
+  console.error(err);
   process.exit(1);
 });