Repository.Changelist.cs #1

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/*******************************************************************************
 * Name		: Repository.Changelist.cs
 *
 * Author	: dbb
 *
 * Description	:Changelist operations for the repository object
 *
 ******************************************************************************/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Perforce.P4
{
	public partial class Repository
	{
		internal Changelist SaveChangelist(Changelist change, Options options)
		{
			if (change == null)
			{
				throw new ArgumentNullException("change");
			}
			
            P4Command cmd = null;
			cmd = new P4Command(this, "change", true);
			cmd.DataSet = change.ToString();

		    if (options == null)
			{
				options = new Options();
			}
			options["-i"] = null;

			P4CommandResult results = cmd.Run(options);
			if (results.Success)
			{
				// If this a new change that was saved, we need  to parse out the new changelist Id
				if (change.Id == -1)
				{
					string[] words = results.InfoOutput[0].Message.Split(' ');

					int newId = -1;
					if (int.TryParse(words[1], out newId))
					{
						Changelist newChange = GetChangelist(newId);
						return newChange;
					}
				}
				return GetChangelist(change.Id);
			}
			else
			{
				P4Exception.Throw(results.ErrorList);
			}
			return null;
		}

		/// <summary>
		/// Create a new empty changelist object using a blank spec returned
		///   by the server
		/// </summary>
		/// <returns>New changelist</returns>
		/// <remarks>Guarantees that any custom values are set</remarks>
        /// <br/>
		/// <br/><b>p4 help change</b>
		/// <br/> 
		/// <br/>     change -- Create or edit a changelist description
		/// <br/>     changelist -- synonym for 'change'
		/// <br/> 
		/// <br/>     p4 change [-s] [-f | -u] [[-O] changelist#]
		/// <br/>     p4 change -d [-f -s -O] changelist#
		/// <br/>     p4 change -o [-s] [-f] [[-O] changelist#]
		/// <br/>     p4 change -i [-s] [-f | -u] 
		/// <br/>     p4 change -t restricted | public [-U user] [-f | -u | -O] changelist#
		/// <br/>     p4 change -U user [-t restricted | public] [-f] changelist#
		/// <br/> 
		/// <br/> 	'p4 change' creates and edits changelists and their descriptions.
		/// <br/> 	With no argument, 'p4 change' creates a new changelist.  If a
		/// <br/> 	changelist number is specified, 'p4 change' edits an existing
		/// <br/> 	pending changelist.  In both cases, the changelist specification
		/// <br/> 	is placed into a form and the user's editor is invoked.
		/// <br/> 
		/// <br/> 	The -d flag deletes a pending changelist, if it has no opened files
		/// <br/> 	and no pending fixes associated with it.  Use 'p4 opened -a' to
		/// <br/> 	report on opened files and 'p4 reopen' to move them to another
		/// <br/> 	changelist.  Use 'p4 fixes -c changelist#' to report on pending
		/// <br/> 	fixes and 'p4 fix -d -c changelist# jobs...' to delete pending
		/// <br/> 	fixes. The changelist can be deleted only by the user and client
		/// <br/> 	who created it, or by a user with 'admin' privilege using the -f
		/// <br/> 	flag.
		/// <br/> 
		/// <br/> 	The -o flag writes the changelist specification to the standard
		/// <br/> 	output.  The user's editor is not invoked.
		/// <br/> 
		/// <br/> 	The -i flag reads a changelist specification from the standard
		/// <br/> 	input.  The user's editor is not invoked.
		/// <br/> 
		/// <br/> 	The -f flag forces the update or deletion of other users' pending
		/// <br/> 	changelists.  -f can also force the deletion of submitted changelists
		/// <br/> 	after they have been emptied of files using 'p4 obliterate'.  By
		/// <br/> 	default, submitted changelists cannot be changed.  The -f flag can
		/// <br/> 	also force display of the 'Description' field in a restricted
		/// <br/> 	changelist. Finally the -f flag can force changing the 'User' of
		/// <br/> 	an empty pending change via -U. The -f flag requires 'admin'
		/// <br/> 	access granted by 'p4 protect'.  The -f and -u flags are mutually
		/// <br/> 	exclusive.
		/// <br/> 
		/// <br/> 	The -u flag can force the update of a submitted change by the owner
		/// <br/> 	of the change. Only the Jobs, Type, and Description fields can be
		/// <br/> 	changed	using the -u flag. The -f and -u flags cannot be used in
		/// <br/> 	the same change command.
		/// <br/> 
		/// <br/> 	The -s flag extends the list of jobs to include the fix status
		/// <br/> 	for each job.  On new changelists, the fix status begins as the
		/// <br/> 	special status 'ignore', which, if left unchanged simply excludes
		/// <br/> 	the job from those being fixed.  Otherwise, the fix status, like
		/// <br/> 	that applied with 'p4 fix -s', becomes the job's status when
		/// <br/> 	the changelist is committed.  Note that this option exists
		/// <br/> 	to support integration with external defect trackers.
		/// <br/> 
		/// <br/> 	The -O flag specifies that the changelist number is the original
		/// <br/> 	number of a changelist which was renamed on submit.
		/// <br/> 
		/// <br/> 	The -U flag changes the 'User' of an empty pending change to the
		/// <br/> 	specified user. The user field can only be changed using this flag
		/// <br/> 	by the user who created the change, or by a user with 'admin'
		/// <br/> 	privilege using the -f flag. This option is useful for running
		/// <br/> 	in a trigger or script.
		/// <br/> 
		/// <br/> 	The -t flag changes the 'Type' of the change to 'restricted'
		/// <br/> 	or 'public' without displaying the change form. This option is
		/// <br/> 	useful for running in a trigger or script.
		/// <br/> 
		/// <br/> 	The 'Type' field can be used to hide the change or its description
		/// <br/> 	from users. Valid values for this field are 'public' (default), and
		/// <br/> 	'restricted'. A shelved or committed change that is 'restricted' is
		/// <br/> 	accessible only to users who own the change or have 'list' permission
		/// <br/> 	to at least one file in the change.  A pending (not shelved)
		/// <br/> 	restricted change is only accessible to its owner.  Public changes
		/// <br/> 	are accessible to all users. This setting affects the output of the
		/// <br/> 	'p4 change', 'p4 changes', and 'p4 describe' commands. Note that
		/// <br/> 	the '-S' flag is required with 'p4 describe' for the command to
		/// <br/> 	enforce shelved	rather than pending restricted changelist rules.
		/// <br/> 
		/// <br/> 	If a user is not permitted to have access to a restricted change,
		/// <br/> 	The 'Description' text is replaced with a 'no permission' message
		/// <br/> 	(see 'Type' field). Users with admin permission can override the
		/// <br/> 	restriction using the -f flag.
		/// <br/> 
		/// <br/> 
		/// </remarks>
        /// <example>
        ///		To create a new empty changelist object:
        ///		<code> 
        ///		    Changelist c = Repository.NewChangelist();
        ///		</code>
        /// </example>
        public Changelist NewChangelist()
		{
			Changelist c = new Changelist();

			P4Command cmd = null;

			cmd = new P4Command(this, "change", true);

			Options	options = new Options();
			options["-o"] = null;

			P4CommandResult results = cmd.Run(options);

            bool dst_mismatch = false;
            string offset = string.Empty;

            if (Server != null && Server.Metadata != null)
            {
                offset = Server.Metadata.DateTimeOffset;
                dst_mismatch = FormBase.DSTMismatch(Server.Metadata);
            }

			if (results.Success)
			{
				c.FromChangeCmdTaggedOutput(results.TaggedOutput[0],offset,dst_mismatch);
				return c;
			}
			else
			{
				P4Exception.Throw(results.ErrorList);
			}
			return null;
		}

		/// <summary>
		/// Create a new changelist in the repository.
		/// </summary>
		/// <param name="change">Changelist specification for the new changelist</param>
		/// <param name="options">'-s', '-f', -u flags are valid when creating a new changelist</param>
		/// <returns>The Changelist object if new user was created, null if creation failed</returns>
		/// <remarks> The '-i' flag is added if not specified by the caller		
		/// <br/>
		/// <br/><b>p4 help change</b>
		/// <br/> 
		/// <br/>     change -- Create or edit a changelist description
		/// <br/>     changelist -- synonym for 'change'
		/// <br/> 
		/// <br/>     p4 change [-s] [-f | -u] [[-O] changelist#]
		/// <br/>     p4 change -d [-f -s -O] changelist#
		/// <br/>     p4 change -o [-s] [-f] [[-O] changelist#]
		/// <br/>     p4 change -i [-s] [-f | -u] 
		/// <br/>     p4 change -t restricted | public [-U user] [-f | -u | -O] changelist#
		/// <br/>     p4 change -U user [-t restricted | public] [-f] changelist#
		/// <br/> 
		/// <br/> 	'p4 change' creates and edits changelists and their descriptions.
		/// <br/> 	With no argument, 'p4 change' creates a new changelist.  If a
		/// <br/> 	changelist number is specified, 'p4 change' edits an existing
		/// <br/> 	pending changelist.  In both cases, the changelist specification
		/// <br/> 	is placed into a form and the user's editor is invoked.
		/// <br/> 
		/// <br/> 	The -d flag deletes a pending changelist, if it has no opened files
		/// <br/> 	and no pending fixes associated with it.  Use 'p4 opened -a' to
		/// <br/> 	report on opened files and 'p4 reopen' to move them to another
		/// <br/> 	changelist.  Use 'p4 fixes -c changelist#' to report on pending
		/// <br/> 	fixes and 'p4 fix -d -c changelist# jobs...' to delete pending
		/// <br/> 	fixes. The changelist can be deleted only by the user and client
		/// <br/> 	who created it, or by a user with 'admin' privilege using the -f
		/// <br/> 	flag.
		/// <br/> 
		/// <br/> 	The -o flag writes the changelist specification to the standard
		/// <br/> 	output.  The user's editor is not invoked.
		/// <br/> 
		/// <br/> 	The -i flag reads a changelist specification from the standard
		/// <br/> 	input.  The user's editor is not invoked.
		/// <br/> 
		/// <br/> 	The -f flag forces the update or deletion of other users' pending
		/// <br/> 	changelists.  -f can also force the deletion of submitted changelists
		/// <br/> 	after they have been emptied of files using 'p4 obliterate'.  By
		/// <br/> 	default, submitted changelists cannot be changed.  The -f flag can
		/// <br/> 	also force display of the 'Description' field in a restricted
		/// <br/> 	changelist. Finally the -f flag can force changing the 'User' of
		/// <br/> 	an empty pending change via -U. The -f flag requires 'admin'
		/// <br/> 	access granted by 'p4 protect'.  The -f and -u flags are mutually
		/// <br/> 	exclusive.
		/// <br/> 
		/// <br/> 	The -u flag can force the update of a submitted change by the owner
		/// <br/> 	of the change. Only the Jobs, Type, and Description fields can be
		/// <br/> 	changed	using the -u flag. The -f and -u flags cannot be used in
		/// <br/> 	the same change command.
		/// <br/> 
		/// <br/> 	The -s flag extends the list of jobs to include the fix status
		/// <br/> 	for each job.  On new changelists, the fix status begins as the
		/// <br/> 	special status 'ignore', which, if left unchanged simply excludes
		/// <br/> 	the job from those being fixed.  Otherwise, the fix status, like
		/// <br/> 	that applied with 'p4 fix -s', becomes the job's status when
		/// <br/> 	the changelist is committed.  Note that this option exists
		/// <br/> 	to support integration with external defect trackers.
		/// <br/> 
		/// <br/> 	The -O flag specifies that the changelist number is the original
		/// <br/> 	number of a changelist which was renamed on submit.
		/// <br/> 
		/// <br/> 	The -U flag changes the 'User' of an empty pending change to the
		/// <br/> 	specified user. The user field can only be changed using this flag
		/// <br/> 	by the user who created the change, or by a user with 'admin'
		/// <br/> 	privilege using the -f flag. This option is useful for running
		/// <br/> 	in a trigger or script.
		/// <br/> 
		/// <br/> 	The -t flag changes the 'Type' of the change to 'restricted'
		/// <br/> 	or 'public' without displaying the change form. This option is
		/// <br/> 	useful for running in a trigger or script.
		/// <br/> 
		/// <br/> 	The 'Type' field can be used to hide the change or its description
		/// <br/> 	from users. Valid values for this field are 'public' (default), and
		/// <br/> 	'restricted'. A shelved or committed change that is 'restricted' is
		/// <br/> 	accessible only to users who own the change or have 'list' permission
		/// <br/> 	to at least one file in the change.  A pending (not shelved)
		/// <br/> 	restricted change is only accessible to its owner.  Public changes
		/// <br/> 	are accessible to all users. This setting affects the output of the
		/// <br/> 	'p4 change', 'p4 changes', and 'p4 describe' commands. Note that
		/// <br/> 	the '-S' flag is required with 'p4 describe' for the command to
		/// <br/> 	enforce shelved	rather than pending restricted changelist rules.
		/// <br/> 
		/// <br/> 	If a user is not permitted to have access to a restricted change,
		/// <br/> 	The 'Description' text is replaced with a 'no permission' message
		/// <br/> 	(see 'Type' field). Users with admin permission can override the
		/// <br/> 	restriction using the -f flag.
		/// <br/> 
		/// <br/> 
		/// </remarks>
        /// <example>
        ///		To create a new changelist:
        ///		<code> 
        ///		    Changelist c = new Changelist();
        ///		    c = Repository.CreateChangelist(c, null);
        ///		</code>
        ///		To create a new restricted changelist:
        ///		<code> 
        ///		    Changelist c = new Changelist();
        ///		    c.Type = ChangeListType.Restricted;
        ///		    c = Repository.CreateChangelist(c, null);
        ///		</code>
        /// </example>
        /// <seealso cref="ChangeCmdFlags"/> 
        public Changelist CreateChangelist(Changelist change, Options options)
		{
			if (change.Id != -1)
			{
				throw new ArgumentOutOfRangeException("change", "Can only create a new changelist");
			}
			return SaveChangelist(change, options);
		}

		/// <summary>
		/// Create a new change in the repository.
		/// </summary>
		/// <param name="change">Changelist specification for the new change</param>
		/// <returns>The Changelist object if new change was created, null if creation failed</returns>
        /// <remarks>
        /// <br/>
		/// <br/><b>p4 help change</b>
		/// <br/> 
		/// <br/>     change -- Create or edit a changelist description
		/// <br/>     changelist -- synonym for 'change'
		/// <br/> 
		/// <br/>     p4 change [-s] [-f | -u] [[-O] changelist#]
		/// <br/>     p4 change -d [-f -s -O] changelist#
		/// <br/>     p4 change -o [-s] [-f] [[-O] changelist#]
		/// <br/>     p4 change -i [-s] [-f | -u] 
		/// <br/>     p4 change -t restricted | public [-U user] [-f | -u | -O] changelist#
		/// <br/>     p4 change -U user [-t restricted | public] [-f] changelist#
		/// <br/> 
		/// <br/> 	'p4 change' creates and edits changelists and their descriptions.
		/// <br/> 	With no argument, 'p4 change' creates a new changelist.  If a
		/// <br/> 	changelist number is specified, 'p4 change' edits an existing
		/// <br/> 	pending changelist.  In both cases, the changelist specification
		/// <br/> 	is placed into a form and the user's editor is invoked.
		/// <br/> 
		/// <br/> 	The -d flag deletes a pending changelist, if it has no opened files
		/// <br/> 	and no pending fixes associated with it.  Use 'p4 opened -a' to
		/// <br/> 	report on opened files and 'p4 reopen' to move them to another
		/// <br/> 	changelist.  Use 'p4 fixes -c changelist#' to report on pending
		/// <br/> 	fixes and 'p4 fix -d -c changelist# jobs...' to delete pending
		/// <br/> 	fixes. The changelist can be deleted only by the user and client
		/// <br/> 	who created it, or by a user with 'admin' privilege using the -f
		/// <br/> 	flag.
		/// <br/> 
		/// <br/> 	The -o flag writes the changelist specification to the standard
		/// <br/> 	output.  The user's editor is not invoked.
		/// <br/> 
		/// <br/> 	The -i flag reads a changelist specification from the standard
		/// <br/> 	input.  The user's editor is not invoked.
		/// <br/> 
		/// <br/> 	The -f flag forces the update or deletion of other users' pending
		/// <br/> 	changelists.  -f can also force the deletion of submitted changelists
		/// <br/> 	after they have been emptied of files using 'p4 obliterate'.  By
		/// <br/> 	default, submitted changelists cannot be changed.  The -f flag can
		/// <br/> 	also force display of the 'Description' field in a restricted
		/// <br/> 	changelist. Finally the -f flag can force changing the 'User' of
		/// <br/> 	an empty pending change via -U. The -f flag requires 'admin'
		/// <br/> 	access granted by 'p4 protect'.  The -f and -u flags are mutually
		/// <br/> 	exclusive.
		/// <br/> 
		/// <br/> 	The -u flag can force the update of a submitted change by the owner
		/// <br/> 	of the change. Only the Jobs, Type, and Description fields can be
		/// <br/> 	changed	using the -u flag. The -f and -u flags cannot be used in
		/// <br/> 	the same change command.
		/// <br/> 
		/// <br/> 	The -s flag extends the list of jobs to include the fix status
		/// <br/> 	for each job.  On new changelists, the fix status begins as the
		/// <br/> 	special status 'ignore', which, if left unchanged simply excludes
		/// <br/> 	the job from those being fixed.  Otherwise, the fix status, like
		/// <br/> 	that applied with 'p4 fix -s', becomes the job's status when
		/// <br/> 	the changelist is committed.  Note that this option exists
		/// <br/> 	to support integration with external defect trackers.
		/// <br/> 
		/// <br/> 	The -O flag specifies that the changelist number is the original
		/// <br/> 	number of a changelist which was renamed on submit.
		/// <br/> 
		/// <br/> 	The -U flag changes the 'User' of an empty pending change to the
		/// <br/> 	specified user. The user field can only be changed using this flag
		/// <br/> 	by the user who created the change, or by a user with 'admin'
		/// <br/> 	privilege using the -f flag. This option is useful for running
		/// <br/> 	in a trigger or script.
		/// <br/> 
		/// <br/> 	The -t flag changes the 'Type' of the change to 'restricted'
		/// <br/> 	or 'public' without displaying the change form. This option is
		/// <br/> 	useful for running in a trigger or script.
		/// <br/> 
		/// <br/> 	The 'Type' field can be used to hide the change or its description
		/// <br/> 	from users. Valid values for this field are 'public' (default), and
		/// <br/> 	'restricted'. A shelved or committed change that is 'restricted' is
		/// <br/> 	accessible only to users who own the change or have 'list' permission
		/// <br/> 	to at least one file in the change.  A pending (not shelved)
		/// <br/> 	restricted change is only accessible to its owner.  Public changes
		/// <br/> 	are accessible to all users. This setting affects the output of the
		/// <br/> 	'p4 change', 'p4 changes', and 'p4 describe' commands. Note that
		/// <br/> 	the '-S' flag is required with 'p4 describe' for the command to
		/// <br/> 	enforce shelved	rather than pending restricted changelist rules.
		/// <br/> 
		/// <br/> 	If a user is not permitted to have access to a restricted change,
		/// <br/> 	The 'Description' text is replaced with a 'no permission' message
		/// <br/> 	(see 'Type' field). Users with admin permission can override the
		/// <br/> 	restriction using the -f flag.
		/// <br/> 
		/// <br/> 
		/// </remarks>
        /// <example>
        ///		To create a new changelist:
        ///		<code> 
        ///		    Changelist c = new Changelist();
        ///		    c = Repository.CreateChangelist(c, null);
        ///		</code>
        /// </example>
		public Changelist CreateChangelist(Changelist change)
		{
			return CreateChangelist(change, null);
		}

		/// <summary>
		/// Update the record for a change in the repository
		/// </summary>
		/// <param name="change">Changelist specification for the change being updated</param>
		/// <returns>The Changelist object if new change was saved, null if creation failed</returns>
        /// <remarks>
        /// <br/>
		/// <br/><b>p4 help change</b>
		/// <br/> 
		/// <br/>     change -- Create or edit a changelist description
		/// <br/>     changelist -- synonym for 'change'
		/// <br/> 
		/// <br/>     p4 change [-s] [-f | -u] [[-O] changelist#]
		/// <br/>     p4 change -d [-f -s -O] changelist#
		/// <br/>     p4 change -o [-s] [-f] [[-O] changelist#]
		/// <br/>     p4 change -i [-s] [-f | -u] 
		/// <br/>     p4 change -t restricted | public [-U user] [-f | -u | -O] changelist#
		/// <br/>     p4 change -U user [-t restricted | public] [-f] changelist#
		/// <br/> 
		/// <br/> 	'p4 change' creates and edits changelists and their descriptions.
		/// <br/> 	With no argument, 'p4 change' creates a new changelist.  If a
		/// <br/> 	changelist number is specified, 'p4 change' edits an existing
		/// <br/> 	pending changelist.  In both cases, the changelist specification
		/// <br/> 	is placed into a form and the user's editor is invoked.
		/// <br/> 
		/// <br/> 	The -d flag deletes a pending changelist, if it has no opened files
		/// <br/> 	and no pending fixes associated with it.  Use 'p4 opened -a' to
		/// <br/> 	report on opened files and 'p4 reopen' to move them to another
		/// <br/> 	changelist.  Use 'p4 fixes -c changelist#' to report on pending
		/// <br/> 	fixes and 'p4 fix -d -c changelist# jobs...' to delete pending
		/// <br/> 	fixes. The changelist can be deleted only by the user and client
		/// <br/> 	who created it, or by a user with 'admin' privilege using the -f
		/// <br/> 	flag.
		/// <br/> 
		/// <br/> 	The -o flag writes the changelist specification to the standard
		/// <br/> 	output.  The user's editor is not invoked.
		/// <br/> 
		/// <br/> 	The -i flag reads a changelist specification from the standard
		/// <br/> 	input.  The user's editor is not invoked.
		/// <br/> 
		/// <br/> 	The -f flag forces the update or deletion of other users' pending
		/// <br/> 	changelists.  -f can also force the deletion of submitted changelists
		/// <br/> 	after they have been emptied of files using 'p4 obliterate'.  By
		/// <br/> 	default, submitted changelists cannot be changed.  The -f flag can
		/// <br/> 	also force display of the 'Description' field in a restricted
		/// <br/> 	changelist. Finally the -f flag can force changing the 'User' of
		/// <br/> 	an empty pending change via -U. The -f flag requires 'admin'
		/// <br/> 	access granted by 'p4 protect'.  The -f and -u flags are mutually
		/// <br/> 	exclusive.
		/// <br/> 
		/// <br/> 	The -u flag can force the update of a submitted change by the owner
		/// <br/> 	of the change. Only the Jobs, Type, and Description fields can be
		/// <br/> 	changed	using the -u flag. The -f and -u flags cannot be used in
		/// <br/> 	the same change command.
		/// <br/> 
		/// <br/> 	The -s flag extends the list of jobs to include the fix status
		/// <br/> 	for each job.  On new changelists, the fix status begins as the
		/// <br/> 	special status 'ignore', which, if left unchanged simply excludes
		/// <br/> 	the job from those being fixed.  Otherwise, the fix status, like
		/// <br/> 	that applied with 'p4 fix -s', becomes the job's status when
		/// <br/> 	the changelist is committed.  Note that this option exists
		/// <br/> 	to support integration with external defect trackers.
		/// <br/> 
		/// <br/> 	The -O flag specifies that the changelist number is the original
		/// <br/> 	number of a changelist which was renamed on submit.
		/// <br/> 
		/// <br/> 	The -U flag changes the 'User' of an empty pending change to the
		/// <br/> 	specified user. The user field can only be changed using this flag
		/// <br/> 	by the user who created the change, or by a user with 'admin'
		/// <br/> 	privilege using the -f flag. This option is useful for running
		/// <br/> 	in a trigger or script.
		/// <br/> 
		/// <br/> 	The -t flag changes the 'Type' of the change to 'restricted'
		/// <br/> 	or 'public' without displaying the change form. This option is
		/// <br/> 	useful for running in a trigger or script.
		/// <br/> 
		/// <br/> 	The 'Type' field can be used to hide the change or its description
		/// <br/> 	from users. Valid values for this field are 'public' (default), and
		/// <br/> 	'restricted'. A shelved or committed change that is 'restricted' is
		/// <br/> 	accessible only to users who own the change or have 'list' permission
		/// <br/> 	to at least one file in the change.  A pending (not shelved)
		/// <br/> 	restricted change is only accessible to its owner.  Public changes
		/// <br/> 	are accessible to all users. This setting affects the output of the
		/// <br/> 	'p4 change', 'p4 changes', and 'p4 describe' commands. Note that
		/// <br/> 	the '-S' flag is required with 'p4 describe' for the command to
		/// <br/> 	enforce shelved	rather than pending restricted changelist rules.
		/// <br/> 
		/// <br/> 	If a user is not permitted to have access to a restricted change,
		/// <br/> 	The 'Description' text is replaced with a 'no permission' message
		/// <br/> 	(see 'Type' field). Users with admin permission can override the
		/// <br/> 	restriction using the -f flag.
		/// <br/> 
		/// <br/> 
		/// </remarks>
        /// <example>
        ///		To update changelist 15:
        ///		<code> 
        ///		    Changelist c = Repository.GetChangelist(15);
        ///		    
        ///         // change the description
        ///         c.Description = "fixes for localization";
        ///		    c = Repository.UpdateChangelist(c);
        ///		</code>
        /// </example>
        public Changelist UpdateChangelist(Changelist change)
		{
			if (change.Id <= 0)
			{
				throw new ArgumentOutOfRangeException("change", "Can only update a numbered changelist");
			}
			return SaveChangelist(change, null);
		}

        /// <summary>
        /// Update the record for a change in the repository
        /// </summary>
        /// <param name="change">Changelist specification for the change being updated</param>
        /// <returns>The Changelist object if new change was saved, null if creation failed</returns>
        /// <remarks>
        /// <br/>
		/// <br/><b>p4 help change</b>
		/// <br/> 
		/// <br/>     change -- Create or edit a changelist description
		/// <br/>     changelist -- synonym for 'change'
		/// <br/> 
		/// <br/>     p4 change [-s] [-f | -u] [[-O] changelist#]
		/// <br/>     p4 change -d [-f -s -O] changelist#
		/// <br/>     p4 change -o [-s] [-f] [[-O] changelist#]
		/// <br/>     p4 change -i [-s] [-f | -u] 
		/// <br/>     p4 change -t restricted | public [-U user] [-f | -u | -O] changelist#
		/// <br/>     p4 change -U user [-t restricted | public] [-f] changelist#
		/// <br/> 
		/// <br/> 	'p4 change' creates and edits changelists and their descriptions.
		/// <br/> 	With no argument, 'p4 change' creates a new changelist.  If a
		/// <br/> 	changelist number is specified, 'p4 change' edits an existing
		/// <br/> 	pending changelist.  In both cases, the changelist specification
		/// <br/> 	is placed into a form and the user's editor is invoked.
		/// <br/> 
		/// <br/> 	The -d flag deletes a pending changelist, if it has no opened files
		/// <br/> 	and no pending fixes associated with it.  Use 'p4 opened -a' to
		/// <br/> 	report on opened files and 'p4 reopen' to move them to another
		/// <br/> 	changelist.  Use 'p4 fixes -c changelist#' to report on pending
		/// <br/> 	fixes and 'p4 fix -d -c changelist# jobs...' to delete pending
		/// <br/> 	fixes. The changelist can be deleted only by the user and client
		/// <br/> 	who created it, or by a user with 'admin' privilege using the -f
		/// <br/> 	flag.
		/// <br/> 
		/// <br/> 	The -o flag writes the changelist specification to the standard
		/// <br/> 	output.  The user's editor is not invoked.
		/// <br/> 
		/// <br/> 	The -i flag reads a changelist specification from the standard
		/// <br/> 	input.  The user's editor is not invoked.
		/// <br/> 
		/// <br/> 	The -f flag forces the update or deletion of other users' pending
		/// <br/> 	changelists.  -f can also force the deletion of submitted changelists
		/// <br/> 	after they have been emptied of files using 'p4 obliterate'.  By
		/// <br/> 	default, submitted changelists cannot be changed.  The -f flag can
		/// <br/> 	also force display of the 'Description' field in a restricted
		/// <br/> 	changelist. Finally the -f flag can force changing the 'User' of
		/// <br/> 	an empty pending change via -U. The -f flag requires 'admin'
		/// <br/> 	access granted by 'p4 protect'.  The -f and -u flags are mutually
		/// <br/> 	exclusive.
		/// <br/> 
		/// <br/> 	The -u flag can force the update of a submitted change by the owner
		/// <br/> 	of the change. Only the Jobs, Type, and Description fields can be
		/// <br/> 	changed	using the -u flag. The -f and -u flags cannot be used in
		/// <br/> 	the same change command.
		/// <br/> 
		/// <br/> 	The -s flag extends the list of jobs to include the fix status
		/// <br/> 	for each job.  On new changelists, the fix status begins as the
		/// <br/> 	special status 'ignore', which, if left unchanged simply excludes
		/// <br/> 	the job from those being fixed.  Otherwise, the fix status, like
		/// <br/> 	that applied with 'p4 fix -s', becomes the job's status when
		/// <br/> 	the changelist is committed.  Note that this option exists
		/// <br/> 	to support integration with external defect trackers.
		/// <br/> 
		/// <br/> 	The -O flag specifies that the changelist number is the original
		/// <br/> 	number of a changelist which was renamed on submit.
		/// <br/> 
		/// <br/> 	The -U flag changes the 'User' of an empty pending change to the
		/// <br/> 	specified user. The user field can only be changed using this flag
		/// <br/> 	by the user who created the change, or by a user with 'admin'
		/// <br/> 	privilege using the -f flag. This option is useful for running
		/// <br/> 	in a trigger or script.
		/// <br/> 
		/// <br/> 	The -t flag changes the 'Type' of the change to 'restricted'
		/// <br/> 	or 'public' without displaying the change form. This option is
		/// <br/> 	useful for running in a trigger or script.
		/// <br/> 
		/// <br/> 	The 'Type' field can be used to hide the change or its description
		/// <br/> 	from users. Valid values for this field are 'public' (default), and
		/// <br/> 	'restricted'. A shelved or committed change that is 'restricted' is
		/// <br/> 	accessible only to users who own the change or have 'list' permission
		/// <br/> 	to at least one file in the change.  A pending (not shelved)
		/// <br/> 	restricted change is only accessible to its owner.  Public changes
		/// <br/> 	are accessible to all users. This setting affects the output of the
		/// <br/> 	'p4 change', 'p4 changes', and 'p4 describe' commands. Note that
		/// <br/> 	the '-S' flag is required with 'p4 describe' for the command to
		/// <br/> 	enforce shelved	rather than pending restricted changelist rules.
		/// <br/> 
		/// <br/> 	If a user is not permitted to have access to a restricted change,
		/// <br/> 	The 'Description' text is replaced with a 'no permission' message
		/// <br/> 	(see 'Type' field). Users with admin permission can override the
		/// <br/> 	restriction using the -f flag.
		/// <br/> 
		/// <br/> 
		/// </remarks>
        /// <example>
        ///		To update changelist 15:
        ///		<code> 
        ///		    Changelist c = Repository.GetChangelist(15);
        ///		    
        ///         // change the description
        ///         c.Description = "fixes for localization";
        ///		    c = Repository.UpdateChangelist(c);
        ///		</code>
        ///		To update changelist 15 as an admin user, changing type to Public:
        ///		<code> 
        ///		    Changelist c = Repository.GetChangelist(15);
        ///		    
        ///         ChangeCmdOptions opts = 
        ///         new ChangeCmdOptions(ChangeCmdFlags.Force);
        ///         c.Type = ChangeListType.Public;
        ///         c = Repository.UpdateChangelist(c, opts);
        ///		</code>
        /// </example>
        /// <seealso cref="ChangeCmdFlags"/> 
        public Changelist UpdateChangelist(Changelist change, Options options)
        {
            if (change.Id <= 0)
            {
                throw new ArgumentOutOfRangeException("change", "Can only update a numbered changelist");
            }
            return SaveChangelist(change, options);
        }

        /// <summary>
        /// Update the record for a submitted change in the repository
        /// </summary>
        /// <param name="change">Changelist specification for the change being updated</param>
        /// <param name="options">options for updating an existing change</param>
        /// <returns>The Changelist object if new change was saved, null if creation failed</returns>
        /// <summary>
        /// Update the record for a change in the repository
        /// </summary>
        /// <param name="change">Changelist specification for the change being updated</param>
        /// <returns>The Changelist object if new change was saved, null if creation failed</returns>
        /// <remarks>
        /// <br/>
		/// <br/><b>p4 help change</b>
		/// <br/> 
		/// <br/>     change -- Create or edit a changelist description
		/// <br/>     changelist -- synonym for 'change'
		/// <br/> 
		/// <br/>     p4 change [-s] [-f | -u] [[-O] changelist#]
		/// <br/>     p4 change -d [-f -s -O] changelist#
		/// <br/>     p4 change -o [-s] [-f] [[-O] changelist#]
		/// <br/>     p4 change -i [-s] [-f | -u] 
		/// <br/>     p4 change -t restricted | public [-U user] [-f | -u | -O] changelist#
		/// <br/>     p4 change -U user [-t restricted | public] [-f] changelist#
		/// <br/> 
		/// <br/> 	'p4 change' creates and edits changelists and their descriptions.
		/// <br/> 	With no argument, 'p4 change' creates a new changelist.  If a
		/// <br/> 	changelist number is specified, 'p4 change' edits an existing
		/// <br/> 	pending changelist.  In both cases, the changelist specification
		/// <br/> 	is placed into a form and the user's editor is invoked.
		/// <br/> 
		/// <br/> 	The -d flag deletes a pending changelist, if it has no opened files
		/// <br/> 	and no pending fixes associated with it.  Use 'p4 opened -a' to
		/// <br/> 	report on opened files and 'p4 reopen' to move them to another
		/// <br/> 	changelist.  Use 'p4 fixes -c changelist#' to report on pending
		/// <br/> 	fixes and 'p4 fix -d -c changelist# jobs...' to delete pending
		/// <br/> 	fixes. The changelist can be deleted only by the user and client
		/// <br/> 	who created it, or by a user with 'admin' privilege using the -f
		/// <br/> 	flag.
		/// <br/> 
		/// <br/> 	The -o flag writes the changelist specification to the standard
		/// <br/> 	output.  The user's editor is not invoked.
		/// <br/> 
		/// <br/> 	The -i flag reads a changelist specification from the standard
		/// <br/> 	input.  The user's editor is not invoked.
		/// <br/> 
		/// <br/> 	The -f flag forces the update or deletion of other users' pending
		/// <br/> 	changelists.  -f can also force the deletion of submitted changelists
		/// <br/> 	after they have been emptied of files using 'p4 obliterate'.  By
		/// <br/> 	default, submitted changelists cannot be changed.  The -f flag can
		/// <br/> 	also force display of the 'Description' field in a restricted
		/// <br/> 	changelist. Finally the -f flag can force changing the 'User' of
		/// <br/> 	an empty pending change via -U. The -f flag requires 'admin'
		/// <br/> 	access granted by 'p4 protect'.  The -f and -u flags are mutually
		/// <br/> 	exclusive.
		/// <br/> 
		/// <br/> 	The -u flag can force the update of a submitted change by the owner
		/// <br/> 	of the change. Only the Jobs, Type, and Description fields can be
		/// <br/> 	changed	using the -u flag. The -f and -u flags cannot be used in
		/// <br/> 	the same change command.
		/// <br/> 
		/// <br/> 	The -s flag extends the list of jobs to include the fix status
		/// <br/> 	for each job.  On new changelists, the fix status begins as the
		/// <br/> 	special status 'ignore', which, if left unchanged simply excludes
		/// <br/> 	the job from those being fixed.  Otherwise, the fix status, like
		/// <br/> 	that applied with 'p4 fix -s', becomes the job's status when
		/// <br/> 	the changelist is committed.  Note that this option exists
		/// <br/> 	to support integration with external defect trackers.
		/// <br/> 
		/// <br/> 	The -O flag specifies that the changelist number is the original
		/// <br/> 	number of a changelist which was renamed on submit.
		/// <br/> 
		/// <br/> 	The -U flag changes the 'User' of an empty pending change to the
		/// <br/> 	specified user. The user field can only be changed using this flag
		/// <br/> 	by the user who created the change, or by a user with 'admin'
		/// <br/> 	privilege using the -f flag. This option is useful for running
		/// <br/> 	in a trigger or script.
		/// <br/> 
		/// <br/> 	The -t flag changes the 'Type' of the change to 'restricted'
		/// <br/> 	or 'public' without displaying the change form. This option is
		/// <br/> 	useful for running in a trigger or script.
		/// <br/> 
		/// <br/> 	The 'Type' field can be used to hide the change or its description
		/// <br/> 	from users. Valid values for this field are 'public' (default), and
		/// <br/> 	'restricted'. A shelved or committed change that is 'restricted' is
		/// <br/> 	accessible only to users who own the change or have 'list' permission
		/// <br/> 	to at least one file in the change.  A pending (not shelved)
		/// <br/> 	restricted change is only accessible to its owner.  Public changes
		/// <br/> 	are accessible to all users. This setting affects the output of the
		/// <br/> 	'p4 change', 'p4 changes', and 'p4 describe' commands. Note that
		/// <br/> 	the '-S' flag is required with 'p4 describe' for the command to
		/// <br/> 	enforce shelved	rather than pending restricted changelist rules.
		/// <br/> 
		/// <br/> 	If a user is not permitted to have access to a restricted change,
		/// <br/> 	The 'Description' text is replaced with a 'no permission' message
		/// <br/> 	(see 'Type' field). Users with admin permission can override the
		/// <br/> 	restriction using the -f flag.
		/// <br/> 
		/// <br/> 
		/// </remarks>
        /// <example>
        ///		To update changelist 25:
        ///		<code> 
        ///		    Changelist c = Repository.GetChangelist(25);
        ///		    
        ///         // change the description
        ///         c.Description = "fixes for localization";
        ///		    c = Repository.UpdateSubmittedChangelist(c);
        ///		</code>
        /// </example>
        public Changelist UpdateSubmittedChangelist(Changelist change)
        {
            return UpdateSubmittedChangelist(change, null);
        }

        /// <summary>
		/// Update the record for a submitted change in the repository
		/// </summary>
		/// <param name="change">Changelist specification for the change being updated</param>
        /// <param name="options">options for the submitted change being updated</param>
		/// <returns>The Changelist object if new change was saved, null if creation failed</returns>
        ///  <remarks>
        /// <br/>
		/// <br/><b>p4 help change</b>
		/// <br/> 
		/// <br/>     change -- Create or edit a changelist description
		/// <br/>     changelist -- synonym for 'change'
		/// <br/> 
		/// <br/>     p4 change [-s] [-f | -u] [[-O] changelist#]
		/// <br/>     p4 change -d [-f -s -O] changelist#
		/// <br/>     p4 change -o [-s] [-f] [[-O] changelist#]
		/// <br/>     p4 change -i [-s] [-f | -u] 
		/// <br/>     p4 change -t restricted | public [-U user] [-f | -u | -O] changelist#
		/// <br/>     p4 change -U user [-t restricted | public] [-f] changelist#
		/// <br/> 
		/// <br/> 	'p4 change' creates and edits changelists and their descriptions.
		/// <br/> 	With no argument, 'p4 change' creates a new changelist.  If a
		/// <br/> 	changelist number is specified, 'p4 change' edits an existing
		/// <br/> 	pending changelist.  In both cases, the changelist specification
		/// <br/> 	is placed into a form and the user's editor is invoked.
		/// <br/> 
		/// <br/> 	The -d flag deletes a pending changelist, if it has no opened files
		/// <br/> 	and no pending fixes associated with it.  Use 'p4 opened -a' to
		/// <br/> 	report on opened files and 'p4 reopen' to move them to another
		/// <br/> 	changelist.  Use 'p4 fixes -c changelist#' to report on pending
		/// <br/> 	fixes and 'p4 fix -d -c changelist# jobs...' to delete pending
		/// <br/> 	fixes. The changelist can be deleted only by the user and client
		/// <br/> 	who created it, or by a user with 'admin' privilege using the -f
		/// <br/> 	flag.
		/// <br/> 
		/// <br/> 	The -o flag writes the changelist specification to the standard
		/// <br/> 	output.  The user's editor is not invoked.
		/// <br/> 
		/// <br/> 	The -i flag reads a changelist specification from the standard
		/// <br/> 	input.  The user's editor is not invoked.
		/// <br/> 
		/// <br/> 	The -f flag forces the update or deletion of other users' pending
		/// <br/> 	changelists.  -f can also force the deletion of submitted changelists
		/// <br/> 	after they have been emptied of files using 'p4 obliterate'.  By
		/// <br/> 	default, submitted changelists cannot be changed.  The -f flag can
		/// <br/> 	also force display of the 'Description' field in a restricted
		/// <br/> 	changelist. Finally the -f flag can force changing the 'User' of
		/// <br/> 	an empty pending change via -U. The -f flag requires 'admin'
		/// <br/> 	access granted by 'p4 protect'.  The -f and -u flags are mutually
		/// <br/> 	exclusive.
		/// <br/> 
		/// <br/> 	The -u flag can force the update of a submitted change by the owner
		/// <br/> 	of the change. Only the Jobs, Type, and Description fields can be
		/// <br/> 	changed	using the -u flag. The -f and -u flags cannot be used in
		/// <br/> 	the same change command.
		/// <br/> 
		/// <br/> 	The -s flag extends the list of jobs to include the fix status
		/// <br/> 	for each job.  On new changelists, the fix status begins as the
		/// <br/> 	special status 'ignore', which, if left unchanged simply excludes
		/// <br/> 	the job from those being fixed.  Otherwise, the fix status, like
		/// <br/> 	that applied with 'p4 fix -s', becomes the job's status when
		/// <br/> 	the changelist is committed.  Note that this option exists
		/// <br/> 	to support integration with external defect trackers.
		/// <br/> 
		/// <br/> 	The -O flag specifies that the changelist number is the original
		/// <br/> 	number of a changelist which was renamed on submit.
		/// <br/> 
		/// <br/> 	The -U flag changes the 'User' of an empty pending change to the
		/// <br/> 	specified user. The user field can only be changed using this flag
		/// <br/> 	by the user who created the change, or by a user with 'admin'
		/// <br/> 	privilege using the -f flag. This option is useful for running
		/// <br/> 	in a trigger or script.
		/// <br/> 
		/// <br/> 	The -t flag changes the 'Type' of the change to 'restricted'
		/// <br/> 	or 'public' without displaying the change form. This option is
		/// <br/> 	useful for running in a trigger or script.
		/// <br/> 
		/// <br/> 	The 'Type' field can be used to hide the change or its description
		/// <br/> 	from users. Valid values for this field are 'public' (default), and
		/// <br/> 	'restricted'. A shelved or committed change that is 'restricted' is
		/// <br/> 	accessible only to users who own the change or have 'list' permission
		/// <br/> 	to at least one file in the change.  A pending (not shelved)
		/// <br/> 	restricted change is only accessible to its owner.  Public changes
		/// <br/> 	are accessible to all users. This setting affects the output of the
		/// <br/> 	'p4 change', 'p4 changes', and 'p4 describe' commands. Note that
		/// <br/> 	the '-S' flag is required with 'p4 describe' for the command to
		/// <br/> 	enforce shelved	rather than pending restricted changelist rules.
		/// <br/> 
		/// <br/> 	If a user is not permitted to have access to a restricted change,
		/// <br/> 	The 'Description' text is replaced with a 'no permission' message
		/// <br/> 	(see 'Type' field). Users with admin permission can override the
		/// <br/> 	restriction using the -f flag.
		/// <br/> 
		/// <br/> 
		/// </remarks>
        /// <example>
        ///		To update changelist 25:
        ///		<code> 
        ///		    Changelist c = Repository.GetChangelist(25);
        ///		    
        ///         // change the description
        ///         c.Description = "fixes for localization";
        ///		    c = Repository.UpdateChangelist(c);
        ///		</code>
        ///		To update changelist 15 as an admin user, changing type to Public:
        ///		<code> 
        ///		    Changelist c = Repository.GetChangelist(25);
        ///		    
        ///         ChangeCmdOptions opts = 
        ///         new ChangeCmdOptions(ChangeCmdFlags.Force);
        ///         c.Type = ChangeListType.Public;
        ///         c = Repository.UpdateChangelist(c, opts);
        ///		</code>
        /// </example>
        /// <seealso cref="ChangeCmdFlags"/> 
        public Changelist UpdateSubmittedChangelist(Changelist change, Options options)
		{
			if (change.Id <= 0)
			{
				throw new ArgumentOutOfRangeException("change", "Can only update a numbered changelist");
			}
            if (options == null)
            {
                options=new Options();
                options["-u"] = null;
            }
			return SaveChangelist(change, options);
		}

		/// <summary>
		/// Get the record for an existing change from the repository.
		/// </summary>
		/// <param name="change">Changelist name</param>
		/// <param name="options">'-f' or '-s' are valid flags to use when fetching an existing change</param>
		/// <returns>The Changelist object if new change was found, null if creation failed</returns>
        /// <remarks>
        /// <br/>
		/// <br/><b>p4 help change</b>
		/// <br/> 
		/// <br/>     change -- Create or edit a changelist description
		/// <br/>     changelist -- synonym for 'change'
		/// <br/> 
		/// <br/>     p4 change [-s] [-f | -u] [[-O] changelist#]
		/// <br/>     p4 change -d [-f -s -O] changelist#
		/// <br/>     p4 change -o [-s] [-f] [[-O] changelist#]
		/// <br/>     p4 change -i [-s] [-f | -u] 
		/// <br/>     p4 change -t restricted | public [-U user] [-f | -u | -O] changelist#
		/// <br/>     p4 change -U user [-t restricted | public] [-f] changelist#
		/// <br/> 
		/// <br/> 	'p4 change' creates and edits changelists and their descriptions.
		/// <br/> 	With no argument, 'p4 change' creates a new changelist.  If a
		/// <br/> 	changelist number is specified, 'p4 change' edits an existing
		/// <br/> 	pending changelist.  In both cases, the changelist specification
		/// <br/> 	is placed into a form and the user's editor is invoked.
		/// <br/> 
		/// <br/> 	The -d flag deletes a pending changelist, if it has no opened files
		/// <br/> 	and no pending fixes associated with it.  Use 'p4 opened -a' to
		/// <br/> 	report on opened files and 'p4 reopen' to move them to another
		/// <br/> 	changelist.  Use 'p4 fixes -c changelist#' to report on pending
		/// <br/> 	fixes and 'p4 fix -d -c changelist# jobs...' to delete pending
		/// <br/> 	fixes. The changelist can be deleted only by the user and client
		/// <br/> 	who created it, or by a user with 'admin' privilege using the -f
		/// <br/> 	flag.
		/// <br/> 
		/// <br/> 	The -o flag writes the changelist specification to the standard
		/// <br/> 	output.  The user's editor is not invoked.
		/// <br/> 
		/// <br/> 	The -i flag reads a changelist specification from the standard
		/// <br/> 	input.  The user's editor is not invoked.
		/// <br/> 
		/// <br/> 	The -f flag forces the update or deletion of other users' pending
		/// <br/> 	changelists.  -f can also force the deletion of submitted changelists
		/// <br/> 	after they have been emptied of files using 'p4 obliterate'.  By
		/// <br/> 	default, submitted changelists cannot be changed.  The -f flag can
		/// <br/> 	also force display of the 'Description' field in a restricted
		/// <br/> 	changelist. Finally the -f flag can force changing the 'User' of
		/// <br/> 	an empty pending change via -U. The -f flag requires 'admin'
		/// <br/> 	access granted by 'p4 protect'.  The -f and -u flags are mutually
		/// <br/> 	exclusive.
		/// <br/> 
		/// <br/> 	The -u flag can force the update of a submitted change by the owner
		/// <br/> 	of the change. Only the Jobs, Type, and Description fields can be
		/// <br/> 	changed	using the -u flag. The -f and -u flags cannot be used in
		/// <br/> 	the same change command.
		/// <br/> 
		/// <br/> 	The -s flag extends the list of jobs to include the fix status
		/// <br/> 	for each job.  On new changelists, the fix status begins as the
		/// <br/> 	special status 'ignore', which, if left unchanged simply excludes
		/// <br/> 	the job from those being fixed.  Otherwise, the fix status, like
		/// <br/> 	that applied with 'p4 fix -s', becomes the job's status when
		/// <br/> 	the changelist is committed.  Note that this option exists
		/// <br/> 	to support integration with external defect trackers.
		/// <br/> 
		/// <br/> 	The -O flag specifies that the changelist number is the original
		/// <br/> 	number of a changelist which was renamed on submit.
		/// <br/> 
		/// <br/> 	The -U flag changes the 'User' of an empty pending change to the
		/// <br/> 	specified user. The user field can only be changed using this flag
		/// <br/> 	by the user who created the change, or by a user with 'admin'
		/// <br/> 	privilege using the -f flag. This option is useful for running
		/// <br/> 	in a trigger or script.
		/// <br/> 
		/// <br/> 	The -t flag changes the 'Type' of the change to 'restricted'
		/// <br/> 	or 'public' without displaying the change form. This option is
		/// <br/> 	useful for running in a trigger or script.
		/// <br/> 
		/// <br/> 	The 'Type' field can be used to hide the change or its description
		/// <br/> 	from users. Valid values for this field are 'public' (default), and
		/// <br/> 	'restricted'. A shelved or committed change that is 'restricted' is
		/// <br/> 	accessible only to users who own the change or have 'list' permission
		/// <br/> 	to at least one file in the change.  A pending (not shelved)
		/// <br/> 	restricted change is only accessible to its owner.  Public changes
		/// <br/> 	are accessible to all users. This setting affects the output of the
		/// <br/> 	'p4 change', 'p4 changes', and 'p4 describe' commands. Note that
		/// <br/> 	the '-S' flag is required with 'p4 describe' for the command to
		/// <br/> 	enforce shelved	rather than pending restricted changelist rules.
		/// <br/> 
		/// <br/> 	If a user is not permitted to have access to a restricted change,
		/// <br/> 	The 'Description' text is replaced with a 'no permission' message
		/// <br/> 	(see 'Type' field). Users with admin permission can override the
		/// <br/> 	restriction using the -f flag.
		/// <br/> 
		/// <br/> 
		/// </remarks>
        /// <example>
        ///		To get changelist 25:
        ///		<code> 
        ///		    Changelist c = Repository.GetChangelist(25, null);
        ///		</code>
        /// </example>
        /// <seealso cref="ChangeCmdFlags"/> 
		public Changelist GetChangelist(int changeId, Options options)
		{
			P4Command cmd = null;
			if (options == null)
			{
				options = new Options();
			}

			if (changeId > 0)
			{
				cmd = new P4Command(this, "describe", true, changeId.ToString());
			}
			else
			{
				cmd = new P4Command(this, "change", true);
				options["-o"] = null;
			}
	
			P4CommandResult results = cmd.Run(options);

            if (results.Success)
			{
				if ((results.TaggedOutput == null) || (results.TaggedOutput.Count <= 0))
				{
					return null;
				}

                bool dst_mismatch = false;
                string offset = string.Empty;

                if (Server != null && Server.Metadata != null)
                {
                    offset = Server.Metadata.DateTimeOffset;
                    dst_mismatch = FormBase.DSTMismatch(Server.Metadata);
                }

				Changelist value = new Changelist();
				value.initialize(Connection);
				if (options.ContainsKey("-S"))
				{
					value.FromChangeCmdTaggedOutput((results.TaggedOutput[0]),true,offset,dst_mismatch);
				}
				else
				{
					value.FromChangeCmdTaggedOutput((results.TaggedOutput[0]),offset,dst_mismatch);
				}
				

				return value;
			}
			else
			{
				P4Exception.Throw(results.ErrorList);
			}
			return null;
		}

        /// <summary>
        /// Get the record for an existing change from the repository.
        /// </summary>
        /// <param name="change">Changelist name</param>
        /// <param name="options">'-f' or '-s' are valid flags to use when fetching an existing change</param>
        /// <returns>The Changelist object if new change was found, null if creation failed</returns>
        /// <remarks>
        /// <br/>
		/// <br/><b>p4 help change</b>
		/// <br/> 
		/// <br/>     change -- Create or edit a changelist description
		/// <br/>     changelist -- synonym for 'change'
		/// <br/> 
		/// <br/>     p4 change [-s] [-f | -u] [[-O] changelist#]
		/// <br/>     p4 change -d [-f -s -O] changelist#
		/// <br/>     p4 change -o [-s] [-f] [[-O] changelist#]
		/// <br/>     p4 change -i [-s] [-f | -u] 
		/// <br/>     p4 change -t restricted | public [-U user] [-f | -u | -O] changelist#
		/// <br/>     p4 change -U user [-t restricted | public] [-f] changelist#
		/// <br/> 
		/// <br/> 	'p4 change' creates and edits changelists and their descriptions.
		/// <br/> 	With no argument, 'p4 change' creates a new changelist.  If a
		/// <br/> 	changelist number is specified, 'p4 change' edits an existing
		/// <br/> 	pending changelist.  In both cases, the changelist specification
		/// <br/> 	is placed into a form and the user's editor is invoked.
		/// <br/> 
		/// <br/> 	The -d flag deletes a pending changelist, if it has no opened files
		/// <br/> 	and no pending fixes associated with it.  Use 'p4 opened -a' to
		/// <br/> 	report on opened files and 'p4 reopen' to move them to another
		/// <br/> 	changelist.  Use 'p4 fixes -c changelist#' to report on pending
		/// <br/> 	fixes and 'p4 fix -d -c changelist# jobs...' to delete pending
		/// <br/> 	fixes. The changelist can be deleted only by the user and client
		/// <br/> 	who created it, or by a user with 'admin' privilege using the -f
		/// <br/> 	flag.
		/// <br/> 
		/// <br/> 	The -o flag writes the changelist specification to the standard
		/// <br/> 	output.  The user's editor is not invoked.
		/// <br/> 
		/// <br/> 	The -i flag reads a changelist specification from the standard
		/// <br/> 	input.  The user's editor is not invoked.
		/// <br/> 
		/// <br/> 	The -f flag forces the update or deletion of other users' pending
		/// <br/> 	changelists.  -f can also force the deletion of submitted changelists
		/// <br/> 	after they have been emptied of files using 'p4 obliterate'.  By
		/// <br/> 	default, submitted changelists cannot be changed.  The -f flag can
		/// <br/> 	also force display of the 'Description' field in a restricted
		/// <br/> 	changelist. Finally the -f flag can force changing the 'User' of
		/// <br/> 	an empty pending change via -U. The -f flag requires 'admin'
		/// <br/> 	access granted by 'p4 protect'.  The -f and -u flags are mutually
		/// <br/> 	exclusive.
		/// <br/> 
		/// <br/> 	The -u flag can force the update of a submitted change by the owner
		/// <br/> 	of the change. Only the Jobs, Type, and Description fields can be
		/// <br/> 	changed	using the -u flag. The -f and -u flags cannot be used in
		/// <br/> 	the same change command.
		/// <br/> 
		/// <br/> 	The -s flag extends the list of jobs to include the fix status
		/// <br/> 	for each job.  On new changelists, the fix status begins as the
		/// <br/> 	special status 'ignore', which, if left unchanged simply excludes
		/// <br/> 	the job from those being fixed.  Otherwise, the fix status, like
		/// <br/> 	that applied with 'p4 fix -s', becomes the job's status when
		/// <br/> 	the changelist is committed.  Note that this option exists
		/// <br/> 	to support integration with external defect trackers.
		/// <br/> 
		/// <br/> 	The -O flag specifies that the changelist number is the original
		/// <br/> 	number of a changelist which was renamed on submit.
		/// <br/> 
		/// <br/> 	The -U flag changes the 'User' of an empty pending change to the
		/// <br/> 	specified user. The user field can only be changed using this flag
		/// <br/> 	by the user who created the change, or by a user with 'admin'
		/// <br/> 	privilege using the -f flag. This option is useful for running
		/// <br/> 	in a trigger or script.
		/// <br/> 
		/// <br/> 	The -t flag changes the 'Type' of the change to 'restricted'
		/// <br/> 	or 'public' without displaying the change form. This option is
		/// <br/> 	useful for running in a trigger or script.
		/// <br/> 
		/// <br/> 	The 'Type' field can be used to hide the change or its description
		/// <br/> 	from users. Valid values for this field are 'public' (default), and
		/// <br/> 	'restricted'. A shelved or committed change that is 'restricted' is
		/// <br/> 	accessible only to users who own the change or have 'list' permission
		/// <br/> 	to at least one file in the change.  A pending (not shelved)
		/// <br/> 	restricted change is only accessible to its owner.  Public changes
		/// <br/> 	are accessible to all users. This setting affects the output of the
		/// <br/> 	'p4 change', 'p4 changes', and 'p4 describe' commands. Note that
		/// <br/> 	the '-S' flag is required with 'p4 describe' for the command to
		/// <br/> 	enforce shelved	rather than pending restricted changelist rules.
		/// <br/> 
		/// <br/> 	If a user is not permitted to have access to a restricted change,
		/// <br/> 	The 'Description' text is replaced with a 'no permission' message
		/// <br/> 	(see 'Type' field). Users with admin permission can override the
		/// <br/> 	restriction using the -f flag.
		/// <br/> 
		/// <br/> 
		/// </remarks>
        /// <example>
        ///		To get changelist 25:
        ///		<code> 
        ///		    Changelist c = Repository.GetChangelist(25);
        ///		</code>
        /// </example>
		public Changelist GetChangelist(int changeId)
		{
			return GetChangelist(changeId, null);
		}

		/// <summary>
		/// Get a list of changes from the repository
		/// </summary>
		/// <param name="options">options for the changes command<see cref="ChangelistsOptions"/></param>
        /// <param name="files">array of FileSpecs for the changes command</param>
		/// <returns>A list containing the matching changes</returns>
		/// <remarks>
		/// <br/><b>p4 help changes</b>
		/// <br/> 
		/// <br/>     changes -- Display list of pending and submitted changelists
		/// <br/>     changelists -- synonym for 'changes'
		/// <br/> 
		/// <br/>     p4 changes [options] [file[revRange] ...]
		/// <br/> 
		/// <br/> 	options: -i -t -l -L -f -c client -m max -s status -u user
		/// <br/> 
		/// <br/> 	Returns a list of all pending and submitted changelists currently
		/// <br/> 	stored in the server.
		/// <br/> 
		/// <br/> 	If files are specified, 'p4 changes' lists only changelists that
		/// <br/> 	affect those files.  If the file specification includes a revision
		/// <br/> 	range, 'p4 changes' lists only submitted changelists that affect
		/// <br/> 	the specified revisions.  See 'p4 help revisions' for details.
		/// <br/> 
		/// <br/> 	If files are not specified, 'p4 changes' limits its report
		/// <br/> 	according to each change's type ('public' or 'restricted').
		/// <br/> 	If a submitted or shelved change is restricted, the change is
		/// <br/> 	not reported unless the user owns the change or has list
		/// <br/> 	permission for at least one file in the change. Only the owner
		/// <br/> 	of a restricted and pending (not shelved) change is permitted
		/// <br/> 	to see it.
		/// <br/> 
		/// <br/> 	The -i flag also includes any changelists integrated into the
		/// <br/> 	specified files.
		/// <br/> 
		/// <br/> 	The -t flag displays the time as well as the date.
		/// <br/> 
		/// <br/> 	The -l flag displays the full text of the changelist
		/// <br/> 	descriptions.
		/// <br/> 
		/// <br/> 	The -L flag displays the changelist descriptions, truncated to 250
		/// <br/> 	characters if longer.
		/// <br/> 
		/// <br/> 	The -f flag enables admin users to view restricted changes.
		/// <br/> 
		/// <br/> 	The -c client flag displays only submitted by the specified client.
		/// <br/> 
		/// <br/> 	The -m max flag limits changes to the 'max' most recent.
		/// <br/> 
		/// <br/> 	The -s status flag limits the output to changelists with the specified
		/// <br/> 	status. Specify '-s pending', '-s shelved', or '-s submitted'.
		/// <br/> 
		/// <br/> 	The -u user flag displays only changes owned by the specified user.
		/// <br/> 
		/// <br/> 
		/// </remarks>
        /// <example>
        ///		To get all changelists owned by user bsmith:
        ///		<code> 
        ///		    ChangesCmdOptions opts =new ChangesCmdOptions(ChangesCmdFlags.None,
        ///		        null, 0, ChangeListStatus.None, "bsmith");
        ///
        ///		    IList&lt;Changelist&gt; changes =
        ///		    Repository.GetChangelists(opts, null);
        ///		</code>
        ///		To get all shelved changelists in file path //depot/main/...:
        ///		<code> 
        ///		    ChangesCmdOptions opts =new ChangesCmdOptions(ChangesCmdFlags.None,
        ///		        null, 0, ChangeListStatus.Shelved, null);
        ///
        ///         FileSpec file = 
        ///         new FileSpec(new DepotPath("//depot/main/..."), null, null, null);
        ///
        ///		    IList&lt;Changelist&gt; changes =
        ///		    Repository.GetChangelists(opts, file);
        ///		</code>
        ///		To the 20 latest submitted changelists from client "build_workspace"
        ///		with their full description:
        ///		<code> 
        ///		    ChangesCmdOptions opts =new ChangesCmdOptions(ChangesCmdFlags.FullDescription,
        ///		        "build_workspace", 20, ChangeListStatus.Submitted, null);
        ///
        ///		    IList&lt;Changelist&gt; changes =
        ///		    Repository.GetChangelists(opts, null);
        ///		</code>
        ///		To get all pending changelists as an admin user in file path
        ///		//depot/finance/...	including restricted changelists:
        ///		<code> 
        ///		    ChangesCmdOptions opts =new ChangesCmdOptions(ChangesCmdFlags.ViewRestricted,
        ///		        null, 0, ChangeListStatus.Pending, null);
        ///
        ///         FileSpec file = 
        ///         new FileSpec(new DepotPath("//depot/finance/..."), null, null, null);
        ///
        ///		    IList&lt;Changelist&gt; changes =
        ///		    Repository.GetChangelists(opts, file);
        ///		</code>
        /// </example>
        /// <seealso cref="ChangesCmdFlags"/> 
        public IList<Changelist> GetChangelists(Options options, params FileSpec[] files)
		{
			P4Command cmd = null;
			if ((files != null) && (files.Length > 0))
			{
				cmd = new P4Command(this, "changes", true, FileSpec.ToStrings(files));
			}
			else
			{
				cmd = new P4Command(this, "changes", true);
			}
			P4CommandResult results = cmd.Run(options);
			if (results.Success)
			{
				if ((results.TaggedOutput == null) || (results.TaggedOutput.Count <= 0))
				{
					return null;
				}
				List<Changelist> value = new List<Changelist>();

                bool dst_mismatch = false;
                string offset = string.Empty;

                if (Server != null && Server.Metadata != null)
                {
                    offset = Server.Metadata.DateTimeOffset;
                    dst_mismatch = FormBase.DSTMismatch(Server.Metadata);
                }

				foreach (TaggedObject obj in results.TaggedOutput)
				{
					Changelist change = new Changelist();
					change.initialize(Connection);
					change.FromChangeCmdTaggedOutput(obj,offset,dst_mismatch);
					value.Add(change);
				}
				return value;
			}
			else
			{
				P4Exception.Throw(results.ErrorList);
			}
			return null;
		}

		/// <summary>
		/// Delete a change from the repository
		/// </summary>
		/// <param name="change">The change to be deleted</param>
		/// <param name="options">The '-f' and '-s' flags are valid when deleting an existing change</param>
        /// <summary>
        /// Get the record for an existing change from the repository.
        /// </summary>
        /// <param name="change">Changelist name</param>
        /// <param name="options">'-f' is a valid flag to use when deleting an existing change</param>
        /// <returns>The Changelist object if new change was found, null if creation failed</returns>
        /// <remarks>
        /// <br/>
		/// <br/><b>p4 help change</b>
		/// <br/> 
		/// <br/>     change -- Create or edit a changelist description
		/// <br/>     changelist -- synonym for 'change'
		/// <br/> 
		/// <br/>     p4 change [-s] [-f | -u] [[-O] changelist#]
		/// <br/>     p4 change -d [-f -s -O] changelist#
		/// <br/>     p4 change -o [-s] [-f] [[-O] changelist#]
		/// <br/>     p4 change -i [-s] [-f | -u] 
		/// <br/>     p4 change -t restricted | public [-U user] [-f | -u | -O] changelist#
		/// <br/>     p4 change -U user [-t restricted | public] [-f] changelist#
		/// <br/> 
		/// <br/> 	'p4 change' creates and edits changelists and their descriptions.
		/// <br/> 	With no argument, 'p4 change' creates a new changelist.  If a
		/// <br/> 	changelist number is specified, 'p4 change' edits an existing
		/// <br/> 	pending changelist.  In both cases, the changelist specification
		/// <br/> 	is placed into a form and the user's editor is invoked.
		/// <br/> 
		/// <br/> 	The -d flag deletes a pending changelist, if it has no opened files
		/// <br/> 	and no pending fixes associated with it.  Use 'p4 opened -a' to
		/// <br/> 	report on opened files and 'p4 reopen' to move them to another
		/// <br/> 	changelist.  Use 'p4 fixes -c changelist#' to report on pending
		/// <br/> 	fixes and 'p4 fix -d -c changelist# jobs...' to delete pending
		/// <br/> 	fixes. The changelist can be deleted only by the user and client
		/// <br/> 	who created it, or by a user with 'admin' privilege using the -f
		/// <br/> 	flag.
		/// <br/> 
		/// <br/> 	The -o flag writes the changelist specification to the standard
		/// <br/> 	output.  The user's editor is not invoked.
		/// <br/> 
		/// <br/> 	The -i flag reads a changelist specification from the standard
		/// <br/> 	input.  The user's editor is not invoked.
		/// <br/> 
		/// <br/> 	The -f flag forces the update or deletion of other users' pending
		/// <br/> 	changelists.  -f can also force the deletion of submitted changelists
		/// <br/> 	after they have been emptied of files using 'p4 obliterate'.  By
		/// <br/> 	default, submitted changelists cannot be changed.  The -f flag can
		/// <br/> 	also force display of the 'Description' field in a restricted
		/// <br/> 	changelist. Finally the -f flag can force changing the 'User' of
		/// <br/> 	an empty pending change via -U. The -f flag requires 'admin'
		/// <br/> 	access granted by 'p4 protect'.  The -f and -u flags are mutually
		/// <br/> 	exclusive.
		/// <br/> 
		/// <br/> 	The -u flag can force the update of a submitted change by the owner
		/// <br/> 	of the change. Only the Jobs, Type, and Description fields can be
		/// <br/> 	changed	using the -u flag. The -f and -u flags cannot be used in
		/// <br/> 	the same change command.
		/// <br/> 
		/// <br/> 	The -s flag extends the list of jobs to include the fix status
		/// <br/> 	for each job.  On new changelists, the fix status begins as the
		/// <br/> 	special status 'ignore', which, if left unchanged simply excludes
		/// <br/> 	the job from those being fixed.  Otherwise, the fix status, like
		/// <br/> 	that applied with 'p4 fix -s', becomes the job's status when
		/// <br/> 	the changelist is committed.  Note that this option exists
		/// <br/> 	to support integration with external defect trackers.
		/// <br/> 
		/// <br/> 	The -O flag specifies that the changelist number is the original
		/// <br/> 	number of a changelist which was renamed on submit.
		/// <br/> 
		/// <br/> 	The -U flag changes the 'User' of an empty pending change to the
		/// <br/> 	specified user. The user field can only be changed using this flag
		/// <br/> 	by the user who created the change, or by a user with 'admin'
		/// <br/> 	privilege using the -f flag. This option is useful for running
		/// <br/> 	in a trigger or script.
		/// <br/> 
		/// <br/> 	The -t flag changes the 'Type' of the change to 'restricted'
		/// <br/> 	or 'public' without displaying the change form. This option is
		/// <br/> 	useful for running in a trigger or script.
		/// <br/> 
		/// <br/> 	The 'Type' field can be used to hide the change or its description
		/// <br/> 	from users. Valid values for this field are 'public' (default), and
		/// <br/> 	'restricted'. A shelved or committed change that is 'restricted' is
		/// <br/> 	accessible only to users who own the change or have 'list' permission
		/// <br/> 	to at least one file in the change.  A pending (not shelved)
		/// <br/> 	restricted change is only accessible to its owner.  Public changes
		/// <br/> 	are accessible to all users. This setting affects the output of the
		/// <br/> 	'p4 change', 'p4 changes', and 'p4 describe' commands. Note that
		/// <br/> 	the '-S' flag is required with 'p4 describe' for the command to
		/// <br/> 	enforce shelved	rather than pending restricted changelist rules.
		/// <br/> 
		/// <br/> 	If a user is not permitted to have access to a restricted change,
		/// <br/> 	The 'Description' text is replaced with a 'no permission' message
		/// <br/> 	(see 'Type' field). Users with admin permission can override the
		/// <br/> 	restriction using the -f flag.
		/// <br/> 
		/// <br/> 
		/// </remarks>
        /// <example>
        ///		To delete pending changelist 34:
        ///		<code> 
        ///		    Repository.DeleteChangelist(34,null);
        ///		</code>
        ///		To delete pending changelist 34 as an admin user
        ///		who is not owner of the change:
        ///		<code> 
        ///		    ChangeCmdOptions opts = new ChangeCmdOptions(ChangeCmdFlags.Force);
        ///		    Repository.DeleteChangelist(34, opts);
        ///		</code>
        /// </example>
        /// <seealso cref="ChangeCmdFlags"/> 
        public void DeleteChangelist(Changelist change, Options options)
		{
			if (change == null)
			{
				throw new ArgumentNullException("change");
			}
			P4Command cmd = new P4Command(this, "change", true, change.Id.ToString());

			if (options == null)
			{
				options = new Options();
			}
			options["-d"] = null;

			P4CommandResult results = cmd.Run(options);
			if (results.Success == false)
			{
				P4Exception.Throw(results.ErrorList);
			}
		}
	}
}