Migrate from dep to golang modules (vgo)

[lafriks]

[coolaj86]

Hey! I already did that in my local branch and it was super easy. Takes about 10 minutes (mostly parsing and downloading deps).

go mod init

But then updating docker and all that... not quite as quick perhaps.

I'll make a PR for as far as I got, but it'll be missing some things, of course.

[lunny]

So when 1.7.0 is coming, we will drop go1.10 support.

[lafriks]

@coolaj86 yes updating drone build steps including step for checking if dependencies are correct also needs to be fixed

[coolaj86]

go: converting Gopkg.lock: stat github.com/boltdb/bolt@ccd680d8c1a0179ac3d68f692b01e1a1589cbfc7: unknown revision ccd680d8c1a0179ac3d68f692b01e1a1589cbfc7

Do we have a custom patched version of boltdb committed to the repo?

[techknowlogick]

@coolaj86 iirc yes https://github.com/go-gitea/bolt

[coolaj86]

Actually... we don't.

rg bolt
Gopkg.lock
111:    "index/store/boltdb",
149:  name = "github.com/boltdb/bolt"
153:  source = "github.com/go-gitea/bolt"

Gopkg.toml
91:  name = "github.com/boltdb/bolt"
93:  source = "github.com/go-gitea/bolt"

The only place it shows up is in the lock file.

[techknowlogick]

oh you know what that dependency might have been removed when tidb was removed.

[coolaj86]

I see that bleve also uses bolt. Should I assume that our bolt modifications for tidb and not for bleve?

[techknowlogick]

the modifications were so that bolt builds on mips platforms, but maybe it's time to use https://github.com/etcd-io/bbolt instead (if bleve supports it)

[coolaj86]

I was hoping to be able to use go mods new replace feature, but it looks like we'll still have to have a gitea version if nothing more than to rename the package from bbolt back to bolt: etcd-io/bbolt#129

Or the bleve maintainers will have to migrate: blevesearch/bleve#783

[techknowlogick]

@coolaj86 As you can see from my comment in the (bleve) ticket you linked I created a PR to upgrade to use bbolt, however I'm having some trouble with failing tests. If you are keen on solving those issues I can give you access to my fork.