/Mercurial.Net/ShowConfigCommand.cs

using System.Collections.Generic;

using System.IO;

using System.Text.RegularExpressions;



namespace Mercurial

{

    /// <summary>

    /// This class implements the "hg showconfig" command (<see href="http://www.selenic.com/mercurial/hg.1.html#showconfig"/>):

    /// show combined config settings from all hgrc files.

    /// </summary>

    public sealed class ShowConfigCommand : MercurialCommandBase<ShowConfigCommand>, IMercurialCommand<IEnumerable<ConfigurationEntry>>

    {

        /// <summary>

        /// Initializes a new instance of the <see cref="ShowConfigCommand"/> class.

        /// </summary>

        public ShowConfigCommand()

            : base("showconfig")

        {

        }



        #region IMercurialCommand<IEnumerable<ConfigurationEntry>> Members



        /// <summary>

        /// Gets the result of executing the command as a collection of <see cref="ConfigurationEntry"/> objects.

        /// </summary>

        public IEnumerable<ConfigurationEntry> Result

        {

            get;

            private set;

        }



        #endregion



        /// <summary>

        /// This method should parse and store the appropriate execution result output

        /// according to the type of data the command line client would return for

        /// the command.

        /// </summary>

        /// <param name="exitCode">

        /// The exit code from executing the command line client.

        /// </param>

        /// <param name="standardOutput">

        /// The standard output from executing the command line client.

        /// </param>

        /// <remarks>

        /// Note that as long as you descend from <see cref="MercurialCommandBase{T}"/> you're not required to call

        /// the base method at all.

        /// </remarks>

        protected override void ParseStandardOutputForResults(int exitCode, string standardOutput)

        {

            var re = new Regex(@"^(?<section>[^.]+)\.(?<name>[^=]+)=(?<value>.*)$", RegexOptions.None);



            var entries = new List<ConfigurationEntry>();

            using (var reader = new StringReader(standardOutput))

            {

                string line;



                while ((line = reader.ReadLine()) != null)

                {

                    Match ma = re.Match(line);

                    if (ma.Success)

                    {

                        entries.Add(

                            new ConfigurationEntry(ma.Groups["section"].Value.Trim(), ma.Groups["name"].Value.Trim(), ma.Groups["value"].Value.Trim()));

                    }

                }

            }

            Result = entries;

        }

    }

}