gulp-file-transform-cache

Why

Because disk space is cheap. Save the results of expensive file transformation steps in your build pipeline (e.g. babel compilation), so that repeated runs only incur the transformation cost when necessary (e.g. the source file was changed). This module creates an adapter layer wrapping the file-transform-cache module to create a gulp plugin.

Getting Started

Install with npm install gulp-file-transform-cache

Example

Consider the following build pipeline

var gulp         = require('gulp'),
    babel        = require('gulp-babel');

gulp.src(['js/**/*.jsx'])
    .pipe(babel())
    .pipe( gulp.dest('dest') );

Enhance this to create super fast builds that only run the transformation again if it's stale...

var gulp  = require('gulp'),
    babel = require('gulp-babel'),
    gftc  = require('gulp-file-transform-cache');

gulp.src(['js/**/*.jsx'])
    .pipe(gftc({ path: '.babelCache',
                 transformStreams: [ babel() ]
    }))
    .pipe( gulp.dest('dest') );

Options

path

The path to the cache-file which will be read/written to maintain the transform cache

transformStreams

An array of streams to provide any number of successive transformations. For Example [ babel(), minify() ] would be equivalent to babel().pipe(minify()). If only one transform is needed, the array can be omitted. (e.g. transformStreams: babel() )

see the example directory for a more detailed example.