loader: restore implicit default of .
for build context
#423
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In the Compose spec, as well as Compose v1.x, the
build.context
field is mandatory in the object form of aservice.build
definition.However, in compose-go (and thus Compose v2.x), this has never been enforced, and an empty
build.context
field was implicitly set to.
aka the project directory.Restore that behavior pending a decision on whether we want to make the spec less restrictive here so that this is acceptable or change
compose-go
to begin emitting a warning and eventually reject this.Note that the order of normalization and resolving paths has been switched so that normalization occurs first, and then paths can be resolved across all fields consistently. This resulted in a small test update where this was incorrect before - it was loading with path resolution enabled but then asserting it had a relative path for the env file.
https://docker.atlassian.net/browse/ENV-239