sourcegit/src/Commands/QueryGitDir.cs

using System.IO;

namespace SourceGit.Commands {
    public class QueryGitDir : Command {
        public QueryGitDir(string workDir) {
            WorkingDirectory = workDir;
            Args = "rev-parse --git-dir";
            RaiseError = false;
        }

        public string Result() {
            var rs = ReadToEnd().StdOut;
            if (string.IsNullOrEmpty(rs)) return null;

            rs = rs.Trim();
            if (Path.IsPathRooted(rs)) return rs;
            return Path.GetFullPath(Path.Combine(WorkingDirectory, rs));
        }
    }
}