[FrameworkBundle] Support APP_BUILD_DIR

[ro0NL]

Q	A
Branch?	6.4
Bug fix?	no
New feature?	yes
Deprecations?	no
Tickets	Fix #...
License	MIT
Doc PR	symfony/symfony-docs#...

follows APP_CACHE_DIR

[carsonbot]

Hey!

Thanks for your PR. You are targeting branch "6.4" but it seems your PR description refers to branch "6.4 for features / 5.4, 6.2, or 6.3 for bug fixes".
Could you update the PR description or change target branch? This helps core maintainers a lot.

Cheers!

Carsonbot

[ro0NL]

in github CI we want to persist the build dir, but not the cache dir + log dir, eg.

if [[ "${CI}" = true ]]; then
    export APP_BUILD_DIR=/app/var/sf-cache
    export APP_CACHE_DIR=/tmp/app-cache
    export APP_LOG_DIR=/tmp/app-logs
fi

[fabpot]

Thank you @ro0NL.