From cd23a7448184ce8ab67de91668d3a0598aacee3d Mon Sep 17 00:00:00 2001
From: Daniel Tomlinson <dtomlinson@panaetius.co.uk>
Date: Thu, 4 Jun 2020 17:26:48 +0100
Subject: [PATCH] Updating gulpfile

---
 blog/gulpfile.js/build-lunrjs-index.js |  3 +-
 blog/gulpfile.js/index.js              | 89 +++++++++++++++++++++++++-
 2 files changed, 88 insertions(+), 4 deletions(-)

diff --git a/blog/gulpfile.js/build-lunrjs-index.js b/blog/gulpfile.js/build-lunrjs-index.js
index 8ac6a3f..c1ca0d6 100644
--- a/blog/gulpfile.js/build-lunrjs-index.js
+++ b/blog/gulpfile.js/build-lunrjs-index.js
@@ -59,7 +59,8 @@ async function run() {
   // for excluded directories and filetypes.
   const posts = await loadPostsWithFrontMatter(`${__dirname}/../content/`);
   const index = makeIndex(posts);
-  console.log(JSON.stringify(index));
+  // console.log(JSON.stringify(index));
+  return JSON.stringify(index);
 }
 
 // run()
diff --git a/blog/gulpfile.js/index.js b/blog/gulpfile.js/index.js
index e25c08a..5be901c 100644
--- a/blog/gulpfile.js/index.js
+++ b/blog/gulpfile.js/index.js
@@ -1,29 +1,112 @@
+// Imports
 const { run } = require("./build-lunrjs-index");
 const gulp = require("gulp");
 const util = require("util");
 const execFile = util.promisify(require("child_process").execFile);
 const exec = util.promisify(require("child_process").exec);
 const { getCurrentDir } = require("./utils");
+const fs = require("fs");
+const imagemin = require("gulp-imagemin");
+const uglify = require("gulp-uglify");
+const hash = require("gulp-hash-filename");
+const rename = require("gulp-rename");
+const clean = require("gulp-clean");
+const replace = require("gulp-replace");
 
+// Directories
+const currentDir = getCurrentDir(__dirname);
+const themeDir = getCurrentDir(__dirname) + "/themes/panaetius-theme";
+
+// Function to build and write the search index
 async function buildSearch(cb) {
-  return run();
+  let searchIndex = await run();
+  fs.writeFileSync(currentDir + "/static/search-index.json", searchIndex);
+  cb();
 }
 
+// Function to build the Hugo project
 async function buildHugo(cb) {
   await execFile("hugo", ["-D", "--minify"]);
 }
 
+// Function to minify images
+function minifyImages(cb) {
+  gulp
+    .src([
+      `${currentDir}/content/**/*.png`,
+      `${currentDir}/content/**/*.svg`,
+      `${currentDir}/static/**/*.png`,
+      `${currentDir}/static/**/*.svg`,
+      `${themeDir}/static/**/*.png`,
+      `${themeDir}/static/**/*.svg`,
+    ])
+    .pipe(imagemin())
+    .pipe(
+      gulp.dest(function (file) {
+        return file.base;
+      })
+    );
+  cb();
+}
+
+// Function to build the theme
 async function buildTheme(cb) {
-  var themeDir = getCurrentDir(__dirname) + "/themes/panaetius-theme";
   console.log(themeDir);
   await exec(
     `cd ${themeDir} && node ${themeDir}/node_modules/webpack/bin/webpack.js --config ${themeDir}/webpack.prod.js`
   );
 }
 
+// Clear ./static/dist
+function cleanJS(cb) {
+  gulp.src(`${currentDir}/static/dist/*.js`, { read: false }).pipe(clean());
+  cb();
+}
+
+// Copy lunrjs into static
+const jsFiles = {
+  lunrjs_gulp: "s",
+};
+
+function lunr(cb) {
+  gulp
+    .src(`${currentDir}/node_modules/lunr/lunr.js`)
+    .pipe(hash({ format: "{name}.{hash}.{ext}" }))
+    .pipe(uglify())
+    .pipe(
+      rename(function (path) {
+        file = path.basename += "min";
+        for (const key in jsFiles) {
+          if (jsFiles.hasOwnProperty(key)) {
+            jsFiles.key = file += ".js";
+            console.log(jsFiles.key);
+          }
+        }
+      })
+    )
+    .pipe(gulp.dest(`${currentDir}/static/dist`));
+  cb();
+}
+
+// Insert js into HTML
+function insertJS(cb) {
+
+  cb();
+}
+
 module.exports = {
   buildSearch: buildSearch,
   buildHugo: buildHugo,
   buildTheme: buildTheme,
-  buildBlog: gulp.parallel([buildSearch, buildHugo, buildTheme]),
+  minifyImages: minifyImages,
+  cleanJS: cleanJS,
+  insertJS: insertJS,
+  lunr: lunr,
+  buildBlog: gulp.parallel([
+    buildSearch,
+    buildHugo,
+    buildTheme,
+    minifyImages,
+    lunr,
+  ]),
 };