32b6eb80fc
This change introduces a new interface, load.ImportPathError. An error may satisfy this by providing an ImportPath method and including the import path in its error text. modload.ImportMissingError satisfies this interface. load.ImportErrorf also provides a convenient way to create an error satisfying this interface with an arbitrary message. When load.PackageError formats its error text, it may omit the last path on the import stack if the wrapped error satisfies ImportPathError and has a matching path. To make this work, PackageError.Err is now an error instead of a string. PackageError.MarshalJSON will write Err as a string for 'go list -json' output. When go/build.Import invokes 'go list' in module mode, it now runs with '-e' and includes '.Error' in the output format instead of expecting the error to be in the raw stderr text. If a package error is printed and a directory was not found, the error will be returned without extra decoration. Fixes #34752 Change-Id: I2d81dab7dec19e0ae9f51f6412bc9f30433a8596 Reviewed-on: https://go-review.googlesource.com/c/go/+/199840 Run-TryBot: Jay Conrod <jayconrod@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Bryan C. Mills <bcmills@google.com> |
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