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Add an errors package with a similar API to github.com/pkg/errors #291

Merged
merged 3 commits into from
Sep 13, 2021
Merged

Add an errors package with a similar API to github.com/pkg/errors #291

merged 3 commits into from
Sep 13, 2021

Commits on Sep 9, 2021

  1. Add an errors package with a similar API to github.com/pkg/errors 

    Go introduced a 'native' way to wrap errors back in v1.13. At that point we were
already using github.com/pkg/errors to 'wrap' errors with context, and we never
got around to migrating. In addition to pure inertia, I've personally avoided
making the switch because I prefer the github.com/pkg/errors API. Specifically I
like that errors.Wrap handles the "outer context: inner context" error format
that Go uses by convention, and that errors.Wrap will return nil when passed a
nil error.

Given that github.com/pkg/errors has long been in maintenance mode, and is (per
pkg/errors#245) no longer used by its original author
now seems as good a time as any to migrate. This commit attempts to ease that
migration for the Crossplane project - and to retain the nice API - by adding a
package that acts as a small github.com/pkg/errors style shim layer around the
stdlib pkg/errors (and friends, like fmt.Errorf).

Signed-off-by: Nic Cope <[email protected]>
    @negz
    negz committed Sep 9, 2021
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  2. Replace github.com/pkg/errors with our own pkg/errors. 

    Signed-off-by: Nic Cope <[email protected]>
    @negz
    negz committed Sep 9, 2021
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  3. Remove TODO about cmpopts.EquateErrors 

    I tried to address this TODO today, but found that I kind of prefer how our
implementation works. I've found from time to time while writing tests that
I was accidentally wrapping my errors with the wrong context (i.e. message),
which is not something the cmpopts variant tests for.

Signed-off-by: Nic Cope <[email protected]>
    @negz
    negz committed Sep 9, 2021
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