Null pointer if target .ino is a folder

[facchinm]

Bug Report

Current behavior

./arduino-cli --debug compile -b anything:something:meh ~/Arduino/Blink crashes with null pointer dereference if ~/Arduino/Blink contains a folder called Blink.ino

Expected behavior

Malformed ino files should be recognized and skipped.

Environment

• CLI version (output of arduino-cli version): nightly-4-gcb3c79b
• OS and platform: linux x86_64

Additional context

[shade34321]

Has this already been worked on? If not I'd like to try it.

[masci]

@shade34321 all yours!

[shade34321]

Sweet, Thanks!

[masci]

@shade34321 FYI it seems #421 indirectly fixes this issue
[edit] fixed PR number

[masci]

@d-a-v 421, autocompletion tricked me :)

[shade34321]

Oh ok. Guess I won't need to work on this. I'll see if I can find something else easy to work on. Thanks!