Previously the value for $HOME was resolved at build time, meaning its actual value during the build is hardcoded in the .profile.d/ script, rather than just the variable name.
Whilst the value for $HOME is currently the same at both build-time and run-time (both /app), the build-time value (only) is due to change in the future to a path under /tmp, which would cause this buildpack to break.
By escaping the dollar sign, the variable $HOME is now resolved at runtime, making the buildpack compatible with this future change.
edmorley
commented
3 years ago
Previously the value for
$HOMEwas resolved at build time, meaning its actual value during the build is hardcoded in the.profile.d/script, rather than just the variable name.Whilst the value for
$HOMEis currently the same at both build-time and run-time (both/app), the build-time value (only) is due to change in the future to a path under/tmp, which would cause this buildpack to break.By escaping the dollar sign, the variable
$HOMEis now resolved at runtime, making the buildpack compatible with this future change.Fixes #17.