run-sequence

Run a series of dependent gulp tasks in order

npm install run-sequence
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run-sequence

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Runs a sequence of gulp tasks in the specified order. This function is designed to solve the situation where you have defined run-order, but choose not to or cannot use dependencies.

Please Note

This is intended to be a temporary solution until orchestrator is updated to support non-dependent ordered tasks.

Be aware that this solution is a hack, and may stop working with a future update to orchestrator.

Each argument to run-sequence is run in order. This works by listening to the task_stop and task_err events, and keeping track of which tasks have been completed. You can still run some of the tasks in parallel, by providing an array of task names for one or more of the arguments.

If the final argument is a function, it will be used as a callback after all the functions are either finished or an error has occurred.

Usage

First, install run-sequence as a development dependency:

npm install --save-dev run-sequence

Then add use it in your gulpfile, like so:

var gulp = require('gulp');
var runSequence = require('run-sequence');
var clean = require('gulp-clean');

// This will run in this order:
// * build-clean
// * build-scripts and build-styles in parallel
// * build-html
// * Finally call the callback function
gulp.task('build', function(callback) {
  runSequence('build-clean',
              ['build-scripts', 'build-styles'],
              'build-html',
              callback);
});

// configure build-clean, build-scripts, build-styles, build-html as you
// wish, but make sure they either return a stream or handle the callback
// Example:

gulp.task('build-clean', function() {
    return gulp.src(BUILD_DIRECTORY).pipe(clean());
//  ^^^^^^
//   This is the key here, to make sure tasks run asynchronously!
});

gulp.task('build-scripts', function() {
    return gulp.src(SCRIPTS_SRC).pipe(...)...
//  ^^^^^^
//   This is the key here, to make sure tasks run asynchronously!
});

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LICENSE

MIT License

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