Close generator / Cancel command

[ruyadorno]

We need a close button on the interface that would bring the user back to the initial app screen, in order for this to work we'll also need a new command to actually stop the running generator on the browser side.

• Add a cancel/stop generator command on browser - @stefanbuck
• Add a back button to the interface in the prompts screen - @ruyadorno

[stefanbuck]

The generator needs to bring in this feature. See yeoman/generator#728

[stefanbuck]

@SBoudrias suggestion yeoman/generator#728 (comment) to run yeoman in a ChildProcess doesn't work. There are some bugs with node / atom-shell v0.20.5 itself and the ChildProcess (electron/electron#961). Unfortunately they don't know what goes wrong and I guess it's not on the high priority list. We have to find an other solution for that problem.

So from my perspective we have these options:
1. Add a cancel behaviour in the generator like I did (tried to do) yeoman/generator#728
2. Let's skip the cancel behaviour for now (maybe forever)
3. Ship node binary with the app electron/electron#961 (comment)
4. Send a fix to Atom-Shell

Let it me know if you have any other ideas or opinions to address.

[stefanbuck]

Yeah, the Atom-Shell Team fixed it 😄 electron/electron#961 (comment). I will check it out tomorrow.

[stefanbuck]

@ruyadorno FYI will continue with that this week.

[ruyadorno]

awesome! 🎆

[stefanbuck]

The generator process is not longer part of the main process of the app. The actual generator is now running in a child process so we can simple kill them and stop the npm and bower install process.

For that, I've added two new context-generator events:

• generator:install Will be triggered once when npm or bower starts running
• generator:cancel After emitting this event, the child process will be killed

@ruyadorno Can you please add a new state (right after generator:install is emitted) which contains the cancel button. That would be awesome. My current working branch is called child-process-wip.

If you have any questions, shout!