Env is undefined in grunt tasks

[mturnwall]

I have this env task:

env: {
    dev: {
        NODE_ENV: 'dev',
        DEST: '<%= config.dev %>'
    },
    dist: {
        NODE_ENV: 'dist',
        DEST: '<%= config.dist %>'
    }
},

Along with a simply task to test that process.env.DEST is getting set correctly.

grunt.registerTask('testEnv', function(){
  console.log(process.env.DEST);
});

When I run it I get the expected output of dev.

Running "env:dev" (env) task

Running "testEnv" task
dev

Done, without errors.

Now if I use process.env.DEST inside another grunt task I get the value as undefined.

Running tasks: env:dev, testEnv, concat:preload

Running "env:dev" (env) task
Verifying property env.dev exists in config...OK
File: [no files]
Options: (none)

Running "testEnv" task
dev

Running "concat:preload" (concat) task
Verifying property concat.preload exists in config...OK
Files: app/scripts/preload/modernizr.js -> undefined/scripts/preload.js
Options: separator="\n", banner="", footer="", stripBanners=false, process=false, sourceMap=false, sourceMapName=undefined, sourceMapStyle="embed"
Reading app/scripts/preload/modernizr.js...OK
Writing undefined/scripts/preload.js...OK
File undefined/scripts/preload.js created.

Done, without errors.

You can see the undefined in this line Files: app/scripts/preload/modernizr.js -> undefined/scripts/preload.js. It's a simple concat task where I want the output to be different dependent on the environment I set.

concat: {
    baseDir: '<%= config.app %>/scripts',
    preload: {
        src: ['<%= concat.baseDir %>/preload/*.js'],
        dest: process.env.DEST + '/scripts/preload.js'
    },
    libs: {
        src: ['<%= concat.baseDir %>/libs/*.js'],
        dest: process.env.DEST + '/scripts/vendors.js'
    }
},

I've been at this for a day now and have no clue what I'm doing wrong. Any help would be greatly appreciated.

[dave-green-uk]

@mturnwall did you ever get to the bottom of this?

[jennasalau]

Bugger.. this is a bug.. I was hoping it was just me doing something silly :(

My work around was to not use this plugin but instead add a npm script

NODE_ENV=production grunt build