progress indicators, bug fixes, after a while

public/assets/vendors/Flot/gulpfile.js

@@ -0,0 +1,54 @@
+var gulp = require('gulp');
+var concat = require('gulp-concat');
+var uglify = require('gulp-uglify');
+var babel = require('gulp-babel');
+var filesExist = require('files-exist');
+var maps = require('gulp-sourcemaps');
+var gulpSequence = require('gulp-sequence');
+
+var files = [
+    './source/jquery.canvaswrapper.js',
+    './source/jquery.colorhelpers.js',
+    './source/jquery.flot.js',
+    './source/jquery.flot.saturated.js',
+    './source/jquery.flot.browser.js',
+    './source/jquery.flot.drawSeries.js',
+    './source/jquery.flot.errorbars.js',
+    './source/jquery.flot.uiConstants.js',
+    './source/jquery.flot.logaxis.js',
+    './source/jquery.flot.symbol.js',
+    './source/jquery.flot.flatdata.js',
+    './source/jquery.flot.navigate.js',
+    './source/jquery.flot.fillbetween.js',
+    './source/jquery.flot.stack.js',
+    './source/jquery.flot.touchNavigate.js',
+    './source/jquery.flot.hover.js',
+    './source/jquery.flot.touch.js',
+    './source/jquery.flot.time.js',
+    './source/jquery.flot.axislabels.js',
+    './source/jquery.flot.selection.js',
+    './source/jquery.flot.composeImages.js',
+    './source/jquery.flot.legend.js'
+];
+
+gulp.task('build_flot_source', function() {
+    return gulp.src(filesExist(files, { exceptionMessage: 'Missing file' }))
+        .pipe(concat('jquery.flot.js'))
+        .pipe(gulp.dest('dist/source'));
+});
+
+gulp.task('build_flot_minified', function() {
+    return gulp.src(filesExist(files, { exceptionMessage: 'Missing file' }))
+        .pipe(maps.init())
+        .pipe(babel({
+            "presets": [
+                "@babel/preset-env"
+            ]
+        }))
+        .pipe(concat('jquery.flot.js'))
+        .pipe(uglify())
+        .pipe(maps.write('./'))
+        .pipe(gulp.dest('dist/es5'));
+});
+
+gulp.task('build', gulp.series('build_flot_source', 'build_flot_minified'));