A couple of points.
[1] The Task is VERY slow. I just ran it against a moderately sized VSS Project (4000 files) and it took upwards of 10 minutes to complete. If anyone can show me that my code is causing these delays please let me know.
From what I understand there is a bug in VSS when interating through versionlists.
[2] The Xml file layout is pretty rudimentary but suites my needs. If anyone has any comments/additions please let me know.
[3] The task could be extended to display the differences in the files as well. The task is already slow enough and I didn't take the time to hunt down a open-source difference algorithm but this would be a good addition / option to the task. ie: <vssdiff showfilediffs="true">
[4] The Namespace for the VSS tasks are SourceSafe but the folder name is VSS. Perhaps this could be refactored?
thanks
brant ...
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#region GNU General Public License // // NAntContrib // Copyright (C) 2003 Brant Carter // // // This library is free software; you can redistribute it and/or // modify it under the terms of the GNU Lesser General Public // License as published by the Free Software Foundation; either // version 2.1 of the License, or (at your option) any later version. // // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // Lesser General Public License for more details. // // You should have received a copy of the GNU Lesser General Public // License along with this library; if not, write to the Free Software // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA //
// Brant Carter ([EMAIL PROTECTED]) #endregion
using System; using SourceSafeTypeLib; using NAnt.Core; using NAnt.Core.Attributes; using System.Xml;
namespace NAnt.Contrib.Tasks.SourceSafe
{
/// <summary>
/// Used to generate differences in a vss database. It will show all changes to a project
/// after the specified label.
/// </summary>
/// <remarks>
/// This only shows differences between the current version and the version specified.
/// </remarks>
/// <example>
/// <code><![CDATA[
/// <vssdiff
/// dbpath='ss.ini'
/// path='$/My Project'
/// label='My Label'
/// user='ssuser'
/// outputfile='diff.xml'
/// />
/// ]]></code>
/// </example>
[TaskName("vssdiff")]
public class DiffTask : BaseTask {
string _label = "";
string _outputFile = "";
XmlDocument _outputDoc;
/// <summary>
/// The value of the label to compare to. Required.
/// </summary>
[TaskAttribute("label", Required=true)]
public string Label {
get { return _label; }
set { _label = value; }
} /// <summary>
/// The output file to generate (xml)
/// </summary>
[TaskAttribute("outputfile", Required=true)]
public string OutputFile {
get { return _outputFile; }
set { _outputFile = value; }
}
protected override void ExecuteTask() { Open(); try { Log(Level.Info, LogPrefix + "Examining: " + this.Path );
//Setup the XmlOutput File
_outputDoc = new XmlDocument();
XmlElement root = _outputDoc.CreateElement("vssdiff");
XmlAttribute attrib = _outputDoc.CreateAttribute
("label");
attrib.Value = _label;
root.Attributes.Append (attrib);
attrib = _outputDoc.CreateAttribute ("generated");
attrib.Value = System.DateTime.Now.ToString();
root.Attributes.Append (attrib);
attrib = _outputDoc.CreateAttribute ("project");
attrib.Value = this.Path;
root.Attributes.Append (attrib);_outputDoc.AppendChild (root);
//Start the recursive search
ProjectDiff(this.Path);
_outputDoc.Save(_outputFile);
}
catch (Exception e) {
throw new BuildException("diff failed", Location, e);
} Log(Level.Info, LogPrefix + "Diff File generated: " +
_outputFile);
} protected void ItemDiff(IVSSItem ssItem) {
if (this.Verbose) {
Log(Level.Info, LogPrefix + "Processing item " +
ssItem.Name );
}
bool addVersion = true;
int labeledVersion = 0;
foreach (IVSSVersion version in ssItem.get_Versions(0)) {
// VSS returns the versions in descending order,
meaning the
// most recent versions appear first.
string action = version.Action;// We found our version so stop adding versions to our list
if (action.StartsWith ("Labeled '" + _label + "'")) {
labeledVersion = version.VersionNumber;
addVersion = false;
//This is a bit annoying, it would be more efficient to break
//out of the loop here but VSS throws an exception !%?!
//http://tinyurl.com/nmct
//break;
}
if (addVersion == true) {
// Only add versions that have been added,created or checked in. Ignore label actions.
if( (action.StartsWith("Add")) || (action.StartsWith("Create")) || (action.StartsWith("Check") )) {
if (this.Verbose) {
Log(Level.Info, LogPrefix + "Adding: " + version.VSSItem.Name);
}
// Build our XML Element with
hopefully useful information.
XmlElement node = _outputDoc.CreateElement
("item");
XmlAttribute attrib = _outputDoc.CreateAttribute
("name");
attrib.Value= version.VSSItem.Name;
node.Attributes.Append (attrib); attrib = _outputDoc.CreateAttribute
("path");
attrib.Value= version.VSSItem.Spec;
node.Attributes.Append (attrib); attrib = _outputDoc.CreateAttribute
("action");
attrib.Value= action;
node.Attributes.Append (attrib); attrib = _outputDoc.CreateAttribute
("date");
attrib.Value= version.Date.ToString();
node.Attributes.Append (attrib); attrib = _outputDoc.CreateAttribute
("version");
attrib.Value=
version.VersionNumber.ToString() ;
node.Attributes.Append (attrib); attrib = _outputDoc.CreateAttribute
("user");
attrib.Value= version.Username ;
node.Attributes.Append (attrib); attrib = _outputDoc.CreateAttribute
("comment");
attrib.Value= version.Comment ;
node.Attributes.Append (attrib);
_outputDoc.ChildNodes.Item(0).AppendChild (node);
}
}
}
} protected void ProjectDiff(string Project) {
// Recursively loop through our vss projects
if (this.Verbose) {
Log(Level.Info, LogPrefix + "Processing project " +
Project);
}
IVSSItem ssProj = this.Database.get_VSSItem(Project,false);
IVSSItems ssSubItems = ssProj.get_Items(false);
foreach (IVSSItem subItem in ssSubItems) {
if (subItem.Type == 0) {
//Type=0 is a Project
ProjectDiff(Project + "/" + subItem.Name);
}
else {
ItemDiff(subItem);
}
}
}
}
}
