/// <summary> /// Executes the given executable to process the given command. /// </summary> /// <param name="workingDirectory"> /// The working directory while executing the command. /// </param> /// <param name="executable"> /// The full path to and name of the executable to execute. /// </param> /// <param name="command"> /// The options to the executable. /// </param> /// <param name="environmentVariables"> /// An array of <see cref="KeyValuePair{TKey,TValue}"/> objects, containing environment variable /// overrides to use while executing the executable. /// </param> /// <param name="specialArguments"> /// Any special arguments to pass to the executable, not defined by the <paramref name="command"/> /// object, typically common arguments that should always be passed to the executable. /// </param> /// <exception cref="ArgumentNullException"> /// <para><paramref name="workingDirectory"/> is <c>null</c> or empty.</para> /// <para>- or -</para> /// <para><paramref name="executable"/> is <c>null</c> or empty.</para> /// <para>- or -</para> /// <para><paramref name="command"/> is <c>null</c>.</para> /// <para>- or -</para> /// <para><paramref name="environmentVariables"/> is <c>null</c>.</para> /// <para>- or -</para> /// <para><paramref name="specialArguments"/> is <c>null</c>.</para> /// </exception> /// <exception cref="MercurialException"> /// <para>The executable did not finish in the allotted time.</para> /// </exception> public static void Execute( string workingDirectory, string executable, ICommand command, KeyValuePair <string, string>[] environmentVariables, IEnumerable <string> specialArguments) { if (StringEx.IsNullOrWhiteSpace(workingDirectory)) { throw new ArgumentNullException("workingDirectory"); } if (StringEx.IsNullOrWhiteSpace(executable)) { throw new ArgumentNullException("executable"); } if (command == null) { throw new ArgumentNullException("command"); } if (environmentVariables == null) { throw new ArgumentNullException("environmentVariables"); } if (specialArguments == null) { throw new ArgumentNullException("specialArguments"); } command.Validate(); command.Before(); IEnumerable <string> arguments = specialArguments; arguments = arguments.Concat(command.Arguments.Where(a => !StringEx.IsNullOrWhiteSpace(a))); arguments = arguments.Concat(command.AdditionalArguments.Where(a => !StringEx.IsNullOrWhiteSpace(a))); string argumentsString = string.Join(" ", arguments.ToArray()); var psi = new ProcessStartInfo { FileName = executable, WorkingDirectory = workingDirectory, RedirectStandardInput = true, RedirectStandardOutput = true, RedirectStandardError = true, CreateNoWindow = true, WindowStyle = ProcessWindowStyle.Hidden, UseShellExecute = false, ErrorDialog = false, Arguments = command.Command + " " + argumentsString, }; foreach (var kvp in environmentVariables) { psi.EnvironmentVariables[kvp.Key] = kvp.Value; } ClientExecutable.LazyInitialize(); psi.StandardErrorEncoding = ClientExecutable.GetMainEncoding(); psi.StandardOutputEncoding = ClientExecutable.GetMainEncoding(); if (command.Observer != null) { command.Observer.Executing(command.Command, argumentsString); } Process process = Process.Start(psi); try { Func <StreamReader, Action <string>, string> reader; if (command.Observer != null) { reader = delegate(StreamReader streamReader, Action <string> logToObserver) { var output = new StringBuilder(); string line; while ((line = streamReader.ReadLine()) != null) { logToObserver(line); if (output.Length > 0) { output.Append(Environment.NewLine); } output.Append(line); } return(output.ToString()); }; } else { reader = (StreamReader streamReader, Action <string> logToObserver) => streamReader.ReadToEnd(); } IAsyncResult outputReader = reader.BeginInvoke(process.StandardOutput, line => command.Observer.Output(line), null, null); IAsyncResult errorReader = reader.BeginInvoke(process.StandardError, line => command.Observer.ErrorOutput(line), null, null); int timeout = Timeout.Infinite; if (command.Timeout > 0) { timeout = 1000 * command.Timeout; } if (!process.WaitForExit(timeout)) { if (command.Observer != null) { command.Observer.Executed(psi.FileName, psi.Arguments, 0, string.Empty, string.Empty); } throw new MercurialException("The executable did not complete within the allotted time"); } string standardOutput = reader.EndInvoke(outputReader); string errorOutput = reader.EndInvoke(errorReader); if (command.Observer != null) { command.Observer.Executed(command.Command, argumentsString, process.ExitCode, standardOutput, errorOutput); } command.After(process.ExitCode, standardOutput, errorOutput); } finally { process.Dispose(); } }
/// <summary> /// Parse the given XML lazily and return a collection of <see cref="Changeset"/> /// objects for the information contained in it, in the order the changesets /// appear in the xml. /// </summary> /// <param name="xml"> /// The XML to parse. /// </param> /// <returns> /// A collection of <see cref="Changeset"/> objects. /// </returns> /// <exception cref="InvalidOperationException"> /// <para>An unknown path action character was detected in the log output.</para> /// <para>- or -</para> /// <para>The XML content was not legal according to the expected format.</para> /// </exception> public static IEnumerable <Changeset> LazyParse(string xml) { if (StringEx.IsNullOrWhiteSpace(xml)) { yield break; } var serializer = new XmlSerializer(typeof(LogEntryNode)); foreach (string entryXml in LazyExtractChangesetXmlPieces(xml)) { var entry = (LogEntryNode)serializer.Deserialize(new StringReader(entryXml)); var changeset = new Changeset { Timestamp = entry.Timestamp, AuthorName = (entry.Author ?? new LogEntryAuthorNode()).Name, AuthorEmailAddress = (entry.Author ?? new LogEntryAuthorNode()).Email, CommitMessage = entry.CommitMessage ?? string.Empty, Branch = entry.Branch ?? "default", Hash = entry.Hash, RevisionNumber = entry.Revision, Revision = RevSpec.Single(entry.Hash), Tags = entry.Tags.Select(t => t.Name).ToArray(), }; switch (entry.Parents.Count) { case 2: changeset.RightParentHash = entry.Parents[1].Hash; changeset.RightParentRevision = entry.Parents[1].Revision; goto case 1; case 1: changeset.LeftParentHash = entry.Parents[0].Hash; changeset.LeftParentRevision = entry.Parents[0].Revision; break; case 0: changeset.LeftParentRevision = changeset.RevisionNumber - 1; break; } foreach (LogEntryPathNode action in entry.PathActions) { var pathAction = new ChangesetPathAction { Path = action.Path, }; switch (action.Action) { case "M": pathAction.Action = ChangesetPathActionType.Modify; break; case "A": pathAction.Action = ChangesetPathActionType.Add; LogEntryCopyNode copySource = entry.Copies.Where(c => c.Destination == action.Path).FirstOrDefault(); if (copySource != null) { pathAction.Source = copySource.Source; } break; case "R": pathAction.Action = ChangesetPathActionType.Remove; break; default: throw new InvalidOperationException("Unknown path action: " + action.Action); } changeset.PathActions.Add(pathAction); } yield return(changeset); } }