Gulp not watching .scss files? - sass

Question

I'm setup as outlined below. The good news: styles are being compiled, the bad news: gulp doesn't seem to watch the scss files for a change and compile automatically?
// Include gulp
var gulp = require('gulp');
// Plugins
var concat = require('gulp-concat');
var stripDebug = require('gulp-strip-debug');
var uglify = require('gulp-uglify');
var include = require('gulp-include');
var sass = require('gulp-sass');
var minifycss = require('gulp-minify-css');
// Styles
gulp.task('styles', function() {
gulp.src('./_themes/blanktheme/ui/scss/styles.scss')
.pipe(include())
.pipe(sass({
errLogToConsole: true
}))
.pipe(minifycss())
.pipe(gulp.dest('./_themes/blanktheme/ui/css/'))
});
// Watch
gulp.task('default', ['watch'], function() {
gulp.watch('./_themes/blanktheme/ui/scss/*.scss', ['styles']);
});
gulp.task('default', ['styles', 'watch']);

Answer 1

I think this come from the fact you have two tasks default. I guess gulp ignore the first one (with gulp.watch) to only trigger the second one. Then you have dependencies with watch but seems like watch does not exist ?
You can install gulp-watch locally, and include it in your file. Give a look at gulp-watch documentation it might help.
Try this :D
var watch = require('gulp-watch');
// Styles
gulp.task('styles', function() {
gulp.src('./_themes/blanktheme/ui/scss/styles.scss')
.pipe(include())
.pipe(sass({
errLogToConsole: true
}))
.pipe(minifycss())
.pipe(gulp.dest('./_themes/blanktheme/ui/css/'))
});
// Watch
gulp.task('watch', function() {
watch('./_themes/blanktheme/ui/scss/*.scss', function () {
gulp.start('styles');
});
});
gulp.task('default', ['styles', 'watch']);