Update .gitattributes

[szepeviktor]

Remove non-existent files, add new development files.

Test command: git archive HEAD | tar -t --exclude='*/*'

One more to add: composer.lock - the lock file is not used in packages.

[szepeviktor]

A typo

[theofidry]

Thanks!

[szepeviktor]

Glad to contribute.

[theofidry]

Thank you @szepeviktor

[szepeviktor]

Actually fixing all these is a solution for today.
The Integrity workflow keeps all these fixed at every commit.
https://github.com/szepeviktor/byte-level-care/blob/master/.github/workflows/reusable-integrity.yml#L39
... maybe this is only valid in my golden cage

[theofidry]

I can see a few being helpful, not sure but a few others, but maybe I'll try adding those in the future, thanks for the ref :)

[szepeviktor]

For example the one that looks for ignored files in the index.

$ git ls-files --cached --ignored --exclude-standard
bin/infection.sh
bin/php-scoper
build/.gitkeep
fixtures/set028-symfony/expected-output
fixtures/set030/expected-output

Investigating ... 🕵🏻‍♂️