From ac3a599bb6f9366b017fafc508f9c2a38e8e6ba8 Mon Sep 17 00:00:00 2001
From: Pablo Vazquez <venomgfx@gmail.com>
Date: Fri, 31 Aug 2018 14:19:09 +0200
Subject: [PATCH] Gulp: build our own bootstrap js only using the needed
 modules.

At this point we only use tooltip and dropdown code, but we could use
tabs or carousels in the future. Just add them to the toUglify list.
---
 gulpfile.js | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/gulpfile.js b/gulpfile.js
index 1e54113d..aaf4caec 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -30,6 +30,10 @@ var destination = {
     js: 'pillar/web/static/assets/js',
 }
 
+var source = {
+    bootstrap: 'node_modules/bootstrap/',
+    popper: 'node_modules/popper.js/'
+}
 
 /* CSS */
 gulp.task('styles', function() {
@@ -101,6 +105,29 @@ gulp.task('scripts_concat_markdown', function() {
 });
 
 
+// Combine all needed Bootstrap JavaScript into a single file.
+gulp.task('scripts_concat_bootstrap', function() {
+
+    toUglify = [
+        source.popper    + 'dist/umd/popper.min.js',
+        source.bootstrap + 'js/dist/index.js',
+        source.bootstrap + 'js/dist/util.js',
+        source.bootstrap + 'js/dist/tooltip.js',
+        source.bootstrap + 'js/dist/dropdown.js',
+    ];
+
+    gulp.src(toUglify)
+        .pipe(gulpif(enabled.failCheck, plumber()))
+        .pipe(gulpif(enabled.maps, sourcemaps.init()))
+        .pipe(concat("bootstrap.min.js"))
+        .pipe(gulpif(enabled.uglify, uglify()))
+        .pipe(gulpif(enabled.maps, sourcemaps.write(".")))
+        .pipe(gulpif(enabled.chmod, chmod(644)))
+        .pipe(gulp.dest(destination.js))
+        .pipe(gulpif(argv.livereload, livereload()));
+});
+
+
 // While developing, run 'gulp watch'
 gulp.task('watch',function() {
     // Only listen for live reloads if ran with --livereload
@@ -138,4 +165,5 @@ gulp.task('default', tasks.concat([
     'scripts',
     'scripts_concat_tutti',
     'scripts_concat_markdown',
+    'scripts_concat_bootstrap',
 ]));