versionPkg() throws "Cannot read property 'latest' of undefined"

[bokub]

Hi,
While running npm-name-cli, I got the following error:

npm-name --version
> 2.3.0

npm-name sunglasses
> TypeError: Cannot read property 'latest' of undefined
>    at versionPkg (/usr/local/lib/node_modules/npm-name-cli/node_modules/squatter/lib/get->package.js:9:36)
>    at squatter (/usr/local/lib/node_modules/npm-name-cli/node_modules/squatter/index.js:42:17)
>    at process._tickCallback (internal/process/next_tick.js:68:7)

which points to the following line of code :

    const fixed = meta['dist-tags'][version] // version = 'latest'

I logged meta I and I got the following result:

{ _id: 'sunglasses',
  _rev: '2-120e55f8b26a7ff42558a6baf3f1d868',
  name: 'sunglasses',
  time:
   { modified: '2016-04-28T00:32:39.237Z',
     created: '2016-04-28T00:32:39.237Z',
     '0.0.0-reserved': '2016-04-28T00:32:39.237Z',
     unpublished:
      { name: 'npm',
        time: '2016-06-10T22:41:14.482Z',
        tags: [Object],
        maintainers: [Array],
        versions: [Array] } },
  _attachments: {} }

There is no dist-tags in the meta.

I thinks the package has been unpublished, so it might be good to handle that case

[bokub]

So, I tried to publish a package named sunglasses and it was possible.

That means squatter should return 'NOT SQUATTED'.

[sholladay]

Interesting. I was not aware that packages might lack a dist-tags field. Agreed that we should handle it if this is normal for packages that have been unpublished. We should verify that is the case first, though.

Would you like to make a PR for this? Do you need any help?