Update to Iris version 12 and go 1.13

[kataras]

Hello @sigsevneo and @rhcarvalho, great job here.

Iris has been updated to version 12.0.1 which requires a new semantic import path. Read here for more. This PR updates the code base to be compatible with Iris v12.0.1 and support go modules with go1.13. It builds successfully (go 1.13).

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Recommendation

Please rename your ./example directory to ./_examples and use a different go.mod and go.sum files for each of the web frameworks provided there, this way your library will not depend on unnecessary third-parties as _ prefix can be go-skipped.

Thanks,
Gerasimos Maropoulos. Author of the Iris Web Framework.

[rhcarvalho]

Hi @kataras! Thanks for the PR and for the recommendation!

I've opened #79 to discuss/track your recommendation independent of this change.

[kamilogorek]

Merged manually 749cdcc
Thanks, I'll definitely use this recommendation. Cheers!

[rhcarvalho]

I'll let @kamilogorek comment here. I imagine we may want to continue supporting people on earlier versions of Go.

update: commit 749cdcc was merged without the .travis.yml change.

[rhcarvalho]

There is some confusion around the go directive in go.mod, see golang/go#30791.

With the current state of affairs, I think we should point to the oldest release of Go supported by sentry-go, currently Go 1.11.

That's because setting a higher version could lead to build errors in dependent packages (user packages) that read like "note: module requires Go 1.13", whereas 1.11 is explicitly supported as per the documentation. See https://blog.ksub.org/bytes/2019/09/15/go.mods-go-directive/ for an example.

[kataras]

Yes, it will work with >=go1.13 as explained above, you can add build tags like // +build go1.13 to the new iris files and others like // +build go1.11 to support older versions of it as well. Read more at: issue #79

[rhcarvalho]

@kataras the build tags are fine 👍 . This comment is about the go directive in the go.mod file 😉

The bump from 1.11 to 1.13 in this PR could lead to confusing output for users of sentry-go building their code with the still supported versions Go 1.11 or 1.12.

Tracking as #83.

[kamilogorek]

Updated docs.sentry.io as well - getsentry/sentry-docs#1346