preprocessify

preprocessify
=============

A browserify transform that applies preprocess to js files before bundling them.

Example use on the command line
``
browserify -t [preprocessify --contextFile ./path/to/contextFile.json] entry.js
`

Example use in a gulp file...
`
var preprocessify = require('preprocessify');

gulp.task('browserify', function() {
return browserify('./app/scripts/main.js')
.transform(preprocessify, {
includeExtensions: ['.js'],
context: {"FOO": "bar"} // This will replace "/ @echo FOO /" with "bar"
})
.bundle()
.pipe(source('main.js'))
.pipe(gulp.dest(config.dist + '/scripts/'));
});
`

You can use this in combination with konfig to define environment specific variables like this...
In ./config/app.json...
`
{
"development": {
"bar": "development bar value"
},
"test": {
"bar": "test bar value"
},
"production": {
"bar": "production bar value"
}
}
`

In gulp file...
`
var config = require('konfig')();
var preprocessify = require('preprocessify');

gulp.task('browserify', function() {
return browserify('./app/scripts/main.js')
.transform(preprocessify, {
includeExtensions: ['.js'],
context: config.app // When the environment variable NODE_ENV=test, "/ @echo bar /" gets replaced with "test bar value"
})
.bundle()
.pipe(source('main.js'))
.pipe(gulp.dest(config.dist + '/scripts/'));
});
``

See also: preprocess and gulp-preprocess