Move from Glide to Dep: dep ensure -add fails

[lawrencegripper]

Currently docs suggest the following method to import the SDK with dep however this fails with the latest version of dep

dep:
 version     : v0.4.1
 build date  : 2018-01-27
 git hash    : 37d9ea0
 go version  : go1.9.3
 go compiler : gc
 platform    : darwin/amd64

I created a new package with a main.go then ran dep init then tried to import the sdk:

~/ dep ensure -add github.com/Azure/azure-sdk-for-go@14.1.1
Fetching sources...

Solving failure: No versions of github.com/Azure/azure-sdk-for-go met constraints:
   14.1.1: Could not introduce github.com/Azure/azure-sdk-for-go@14.1.1, as its subpackage github.com/Azure/azure-sdk-for-go does not contain usable Go code (*build.NoGoError).. (Package is required by (root).)
   v14.1.1: Could not introduce github.com/Azure/azure-sdk-for-go@v14.1.1, as its subpackage github.com/Azure/azure-sdk-for-go does not contain usable Go code (*build.NoGoError).. (Package is required by (root).)
   v14.1.0: Could not introduce github.com/Azure/azure-sdk-for-go@v14.1.0, as it is not allowed by constraint ^14.1.1 from project github.com/lawrencegripper/azuresdkgotest.
   v14.0.2: Could not introduce github.com/Azure/azure-sdk-for-go@v14.0.2, as it is not allowed by constraint ^14.1.1 from project github.com/lawrencegripper/azuresdkgotest.
.....

It seems that adding a sub-directory succeeds.

✘ dep ensure -add github.com/Azure/azure-sdk-for-go/services/batch/2017-09-01.6.0/batch@14.1.1
Fetching sources...

"github.com/Azure/azure-sdk-for-go/services/batch/2017-09-01.6.0/batch" is not imported by your project, and has been temporarily added to Gopkg.lock and vendor/.
If you run "dep ensure" again before actually importing it, it will disappear from Gopkg.lock and vendor/.

This creates a gopkg.lock like so

[[projects]]
  name = "github.com/Azure/azure-sdk-for-go"
  packages = [
    "services/batch/2017-09-01.6.0/batch",
    "version"
  ]
  revision = "1e334c402ea1460704b0263e5d188f28ad946ce1"
  version = "14.1.1"

I can then go into my go code and start using it, at which point the warning isn't a problem any more.

It looks like this is being worked on by dep here and here

I'm relatively new to dep having spent some time getting my head around glide so this may simply be user error. If it's not then I think it would be good to update the docs to call this out.

Any help and pointers much appreciated!

[joshgav]

Thanks for noting this @lawrencegripper. I think the solution may be to turn the root into a Go package by adding a doc.go file. Did so in #1310.

[lawrencegripper]

Awesome that sounds like it will do the trick - good call

[vladbarosan]

Fixed by #1310