Enable Bower API options

[JorritPosthuma]

I needed te be able to set the cwd option of the Bower API. This enables that.

[tellnes]

Is there any reason not to pass the options argument directly to bower?

It can be done in combination with something like this:

if (typeof options.offline === 'undefined') options.offline = true

Btw, you do not need to create a new pull request when doing modifications. You can just update the branch you are creating the pull request from.

[eugeneware]

Yeah, I think passing the options directly might be the way to go.

[sukima]

I tend to prefer testing undefined / null this way:

if (options.offline == null) options.offline = true;

That catches both null and undefined. You can also simplyfy conditions that depened on false value as

if (options.offline !== false) doSomething

That forces the default regardless of type or value unless false was explicitly assigned to turn it off.

[eugeneware]

the typeof xx === 'undefined' is the recommended safe way to test for undefinedness, and is also recommended by the the most excellent tome effective javascript

It's verbose, but nice and safe.

You also want to make sure that the options object is an object as well, so you don't throw an error if the options object is undefined?

[JorritPosthuma]

Better?

[sukima]

Testing typeof is only needed if your testing the existence of a possibly undeclared variable. Since all objects will return undefined for missing properties it's essentially superfluous.

[eugeneware]

LGTM :+1:

[eugeneware]

Thanks @JorritPosthuma for the PR! I've merged and published this as 1.2.0. I've also added you to the contributors list and giving you collaborate access to the repo as per our Open Open Source Contribution Policy.

Cheers!