Feature Request: Add a Hint to Use `purchase` When `install` Fails

[muescha]

Problem(s) addressed

I know from Homebrew that I have to use brew install for a new app. With mas, however, I have to use mas get or mas purchase for an app I haven't acquired before.

When I try to install an app that I haven't acquired before, I get this error:

mas install 6758355178
Error: No downloads initiated for ADAM ID 6758355178

The App Store then shows this message:

Für diesen Apple Account stehen keine Artikel zum erneuten Laden zur. Dieser Artikel kann mit diesem Apple Account nicht erneut geladen werden, da er von einem:einer anderen Benutzer:in gekauft oder zurückerstattet oder storniert wurde.

Translated:

There are no items available to redownload for this Apple Account. This item cannot be redownloaded with this Apple Account because it was purchased by a different user, or it has been refunded or cancelled.

I eventually found out that the solution is to use mas purchase.

I keep running into this because my first instinct is always to use install instead of purchase. A small hint in the error message would be very helpful.

Proposed solution(s)

If mas install fails with this error, add a hint suggesting mas purchase:

mas install 6758355178
Error: No downloads initiated for ADAM ID 6758355178
Hint: Maybe you haven't acquired this app before? Try instead: 
mas purchase 6758355178

[rgoldberg]

Thanks for reporting this.

I will either output such a hint, or I will implement #557, which would prevent this situation from occurring.

I'm not sure if #557 can be implemented nicely, though.

I am finishing multiple massive overhauls for 8.0.0.

I will think about this vs. #557 in the back of my mind while completing the overhauls; once they're done, I will implement this or #557, then release 8.0.0.