[VTI] VTI should return exit code 1 and display more useful errors on unknown errors

[andrewisaburden]

• I have searched through existing issues
• I have read through docs
• I have read FAQ

Problem

If VTI hits an error not already accounted for with the existing exception handlers, it just prints VTI operation failed with no further information. It also exits with error code 0.

Proposed solution

 console.log(`VTI operation failed with error: ${_err}`);
 process.exit(1);

Potential Problem

I'm less sure about this one, but also if there are no files it exits with error code 0 (success). I think ESLint does the same, but arguably it should be treated as a failure so that if, say, a CI pipeline tried to run VTI on the wrong directory with no found Vue files it should return a failure so that the mistake can be picked up.

I'm happy to fix these if the solutions are OK.

[andrewisaburden]

@yoyo930021 do you have an opinion on exiting with error code 1 (failure) when no files are found?

[yoyo930021]

@yoyo930021 do you have an opinion on exiting with error code 1 (failure) when no files are found?

No, I commit it when I rebase branch.