Merge pull request #1310 from jnm2/fix_error_copying_authors_file

Interpret authors file path relative to the current directory at the time the command was executed

doc/release-notes/NEXT.md

@@ -1,4 +1,6 @@
 * Remove support for building an MSI package. It was broken since 6732259 ("Moving source in the 'src' folder", 2017-10-13)
   and the official distribution channel for binaries is a ZIP file or a chocolatey package.
 
-* Added a new command to create a mapping file of changet ids and commit ids. 
+* Added a new command to create a mapping file of changet ids and commit ids. 
+
+* Fixed authors file not being found for the copy to .git/git-tfs_authors due to git-tfs changing the current directory before initiating the copy.

src/GitTfs/Globals.cs

@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.Diagnostics;
 using System.Linq;
+using System.IO;
 using NDesk.Options;
 using GitTfs.Core;
 using GitTfs.Util;
@@ -26,7 +27,7 @@ public OptionSet OptionSet
                     { "i|tfs-remote|remote|id=", "The remote ID of the TFS to interact with\ndefault: default",
                         v => UserSpecifiedRemoteId = v },
                     { "A|authors=", "Path to an Authors file to map TFS users to Git users (will be kept in cache and used for all the following commands)",
-                        v => AuthorsFilePath = v },
+                        v => AuthorsFilePath = Path.GetFullPath(v) },
                 };
             }
         }