pkg: auto-mode/debug-mode/notify instead of exit when done

[tschettervictor]

Implement "auto" mode -a
Implement "debug" mode -x

This will solve issues when templates have the PKG hook, and the hook fails for any reason. If it fails, the whole template command fails, which is sometimes not preferable. This will notify on error, but not exit, allowing the template to continue to run.

to test-

Run a template with PKG in it, forcing it to fail, perhaps with a wrong package name. It should fail the entire template command
Then with this PR it should just continue over to the next hook

[bmac2]

but what good is a template that doesn't run correctly? What is the gain in it running with an error in it? I am struggling for the use case here.

@tschettervictor @yaazkal

[tschettervictor]

According to the discussion in #404 it seems we want a docker like method of continuing the template even if a command fails.

Correct me if I'm wrong.

[bmac2]

per my reading of #404 @michael-o was saying to halt the template IF there is a missing parameter that the process halts and throws an error. NOT to cause the process to continue.

@michael-o am I misreading that issue?

@yaazkal @tschettervictor

[michael-o]

per my reading of #404 @michael-o was saying to halt the template IF there is a missing parameter that the process halts and throws an error. NOT to cause the process to continue.

@michael-o am I misreading that issue?

@yaazkal @tschettervictor

Yes, totally correct, but I don't see any relation to this PR....