Support Source Link

[ViktorHofer]

If an assembly supports Source Link it generates the following (sample) code in the pdb:

{"documents": { "E:\\A\\_work\\104\\s\\*" : "https://raw.githubusercontent.com/dotnet/coreclr/5feb0389f1e1ba715fba5560c979ac6362b1bcf8/*" }}

As we write the source code paths into the report we should add a switch, i.e. -sourcelink (true/false) which replaces the local file paths with the source link ones. A corresponding issue in the ReportGenerator repo was opened to support fetching remote files: danielpalme/ReportGenerator#180

[ViktorHofer]

@tonerdo I quickly scanned related code paths. I believe we would need to retrieve the SourceLinkUrl for the local file path glob pattern first and then replace the debug information local file paths either upfront or later in Coverage.cs. Documentation for source link: https://github.com/dotnet/sourcelink/tree/master/docs

If you can provide more pointers and suggestions I can probably submit a PR this week.

[ViktorHofer]

ping @tonerdo

[tonerdo]

@ViktorHofer looking into this over the weekend. Work's been a bit crazy for me this week

[ViktorHofer]

No prob. Take your time :)