Dereferenceable uris for github repositories

[mielvds]

When a repo is stored in GitHub, the URI used to identify files can be the native .../raw/... uri, which is dereferenceable. Provide an option to use a URI template for specifying the file (or any other for that matter) uris.

[tdn]

We could implement this, but it would be different for github, gitlab, gitorious, etc. because the /raw feature is a git platform implementation specific feature.

But I can see the value of doing it for github URI's.

[mielvds]

Github's popularity justifies this. Another option would be supplying a URI template for the prov:Enttity subject URIs.

For instance:
https://raw.githubusercontent.com/{groupname}/{reponame}/{commit}/{filepath}

The variables groupname, reponame and filepath are filled in by git2prov, so for commit 1c036643ef668ef836f251ead1cdd0835dbfdb3b

https://raw.githubusercontent.com/datasets/country-codes/1c036643ef668ef836f251ead1cdd0835dbfdb3b/data/country-codes.csv