Add error handling and messages to prevent running develop

[breakerbar]

Add error handling and messages to prevent running develop while in a directory without a project already defined

solves #23

[brent-hoover]

@breakerbar When I test this running it in a directory with a package.json I get the error:

reaction-cli: Error while parsing package.json
reaction-cli: No project type found

I also get it in a valid project

[brent-hoover]

@breakerbar You will also want to fix up your commit message

[breakerbar]

Taking a look - I think I know what it could be. I'm assuming that when you run develop api|admin|storefront you're in a directory that is only one of those projectType and it must be the one that matches the one in the command, is that correct?

[breakerbar]

@zenweasel What is the exact command you're running and what is projectType set to in the package.json in your current directory for the invalid/valid examples?

[brent-hoover]

I get the same error regardless of where I run it from. Seems like it's having a problem parsing the package.json for some reason. I'm running reaction develop in every case

[breakerbar]

Thanks - I can duplicate it on my side, working on it now.

[brent-hoover]

@breakerbar Just pinging you that Hacktober is almost over if you want to get this in

[breakerbar]

thanks - I plan to get to it, but it might be later this week.