Fix behavior around BASHBREW_LIBRARY in GHA
#106
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See https://github.com/docker-library/docs/blob/bb2429cba3b5a788647ad3c84d6c183d7e1afdd9/.template-helpers/arches.sh#L11-L14 for a pre-existing example of this precedent. |
This script needs/uses a custom `BASHBREW_LIBRARY` directory, but it stores that value in the exported environment slightly too soon such that `generate-stackbrew-library.sh` picks it up (and shouldn't be). We often use "`BASHBREW_LIBRARY` is unset (or empty)" as a conditional for whether to fall back to using "https://github.com/docker-library/official-images/raw/HEAD/library/" as an explicit prefix for querying "source of truth" values for things like supported parent architectures. These two things collided in docker-library/buildpack-deps@cc2dc88 (and similar commits) because the script saw `BASHBREW_LIBRARY` set, trusted it, but then fails to find the parent image. This is the cleanest place to fix this such that `generate-stackbrew-library.sh` can take `BASHBREW_LIBRARY` from the provided environment instead of using our generated value.
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yosifkit
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Sep 30, 2024
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This script needs/uses a custom
BASHBREW_LIBRARYdirectory, but it stores that value in the exported environment slightly too soon such thatgenerate-stackbrew-library.shpicks it up (and shouldn't be).We often use "
BASHBREW_LIBRARYis unset (or empty)" as a conditional for whether to fall back to using "https://github.com/docker-library/official-images/raw/HEAD/library/" as an explicit prefix for querying "source of truth" values for things like supported parent architectures.These two things collided in docker-library/buildpack-deps@cc2dc88 (and similar commits) because the script saw
BASHBREW_LIBRARYset, trusted it, but then fails to find the parent image.This is the cleanest place to fix this such that
generate-stackbrew-library.shcan takeBASHBREW_LIBRARYfrom the provided environment instead of using our generated value.