mcs/class/Moonlight.Build.Tasks/Moonlight.Build.Tasks/GenerateXap.cs

   1 //
   2 // GenerateXap.cs
   3 //
   4 // Author:
   5 //      Michael Hutchinson <mhutchinson@novell.com>
   6 //      Ankit Jain <jankit@novell.com>
   7 //
   8 // Copyright (c) 2009 Novell, Inc. (http://www.novell.com)
   9 // Copyright (c) 2010 Novell, Inc. (http://www.novell.com)
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29
  30 using System;
  31 using System.Collections;
  32 using System.Collections.Generic;
  33 using System.IO;
  34 using System.CodeDom;
  35 using System.CodeDom.Compiler;
  36 using System.Xml;
  37
  38 using Microsoft.CSharp;
  39
  40 using Microsoft.Build.Framework;
  41 using Microsoft.Build.Utilities;
  42
  43 namespace Moonlight.Build.Tasks {
  44         public class GenerateXap : Task {
  45
  46                 public override bool Execute ()
  47                 {
  48                         if (InputFiles.Length == 0)
  49                                 return true;
  50
  51                         return Zip ();
  52                 }
  53
  54                 bool Zip ()
  55                 {
  56                         var xapName = XapFilename.ItemSpec;
  57                         if (File.Exists (xapName)) {
  58                                 DateTime lastMod = File.GetLastWriteTime (xapName);
  59                                 bool needsWrite = false;
  60                                 foreach (ITaskItem file_item in InputFiles) {
  61                                         if (File.GetLastWriteTime (file_item.ItemSpec) > lastMod) {
  62                                                 needsWrite = true;
  63                                                 break;
  64                                         }
  65                                 }
  66                                 if (!needsWrite) {
  67                                         Log.LogMessage (MessageImportance.Low, "Skipping xap file {0} generation, its up-to date");
  68                                         return true;
  69                                 }
  70                         }
  71
  72                         Log.LogMessage (MessageImportance.Normal, "Generating compressed xap file {0}", xapName);
  73                         try {
  74                                 using (FileStream fs = new FileStream (xapName, FileMode.Create)) {
  75                                         var zip_stream = new ICSharpCode.SharpZipLib.Zip.ZipOutputStream (fs);
  76                                         zip_stream.SetLevel (9);
  77
  78                                         AddFilesToZip (InputFiles, zip_stream);
  79                                         AddFilesToZip (LocalCopyReferences, zip_stream);
  80
  81                                         zip_stream.Finish ();
  82                                         zip_stream.Close ();
  83                                 }
  84                         } catch (IOException ex) {
  85                                 Log.LogError ("Error writing xap file.", ex);
  86                                 Log.LogMessage (MessageImportance.Low, "Error writing xap file:" + ex.ToString ());
  87
  88                                 try {
  89                                         if (File.Exists (xapName))
  90                                                 File.Delete (xapName);
  91                                 } catch {}
  92
  93                                 return false;
  94                         }
  95
  96                         return true;
  97                 }
  98
  99                 void AddFilesToZip (ITaskItem [] files, ICSharpCode.SharpZipLib.Zip.ZipOutputStream zipStream)
 100                 {
 101                         if (files == null)
 102                                 return;
 103
 104                         foreach (ITaskItem item in files) {
 105                                 string target_path = item.GetMetadata ("TargetPath");
 106                                 if (String.IsNullOrEmpty (target_path))
 107                                         target_path = Path.GetFileName (item.ItemSpec);
 108
 109                                 zipStream.PutNextEntry (new ICSharpCode.SharpZipLib.Zip.ZipEntry (target_path));
 110                                 using (FileStream inStream = File.OpenRead (item.ItemSpec)) {
 111                                         int readCount;
 112                                         byte[] buffer = new byte[4096];
 113
 114                                         do {
 115                                                 readCount = inStream.Read (buffer, 0, buffer.Length);
 116                                                 zipStream.Write (buffer, 0, readCount);
 117                                         } while (readCount > 0);
 118                                 }
 119                         }
 120                 }
 121
 122                 [Output]
 123                 [Required]
 124                 public ITaskItem XapFilename {
 125                         get; set;
 126                 }
 127
 128                 [Required]
 129                 public ITaskItem[] InputFiles {
 130                         get; set;
 131                 }
 132
 133                 public ITaskItem[] LocalCopyReferences {
 134                         get; set;
 135                 }
 136
 137         }
 138
 139
 140 }