Add target to msbuild file to set a version# in module.txt files

--HG--
branch : dev

src/Tools/MSBuild.Orchard.Tasks/FileUpdateLines.cs

@@ -0,0 +1,84 @@
+using System;
+using System.IO;
+using System.Text;
+using System.Text.RegularExpressions;
+using Microsoft.Build.Framework;
+using Microsoft.Build.Utilities;
+
+namespace MSBuild.Orchard.Tasks {
+    public class FileUpdateLines : Task {
+        private bool _multiline;
+        private bool _singleline;
+        private int _replacementCount = -1;
+        private Encoding _encodingValue { get; set; }
+
+        public ITaskItem[] Files { get; set; }
+
+        public string Regex { get; set; }
+        public string ReplacementText { get; set; }
+        public bool IgnoreCase { get; set; }
+        public string Encoding {
+            get {
+                return this._encodingValue.WebName;
+            }
+            set {
+                this._encodingValue = System.Text.Encoding.GetEncoding(value);
+            }
+        }
+
+        public FileUpdateLines() {
+            _replacementCount = -1;
+            _encodingValue = System.Text.Encoding.UTF8;
+        }
+
+        public override bool Execute() {
+            RegexOptions options = RegexOptions.None;
+            if (this.IgnoreCase) {
+                options |= RegexOptions.IgnoreCase;
+            }
+            if (this._multiline) {
+                options |= RegexOptions.Multiline;
+            }
+            if (this._singleline) {
+                options |= RegexOptions.Singleline;
+            }
+            if (this._replacementCount == 0) {
+                this._replacementCount = -1;
+            }
+            Regex regex = new Regex(Regex, options);
+            try {
+                foreach (ITaskItem item in Files) {
+                    string itemSpec = item.ItemSpec;
+                    Log.LogMessage("Updating File \"{0}\".", itemSpec);
+                    int replacementCount = ProcessLines(itemSpec, regex);
+                    Log.LogMessage("  Replaced {0} occurence(s) of \"{1}\" with \"{2}\".", replacementCount, Regex, ReplacementText);
+                }
+            }
+            catch (Exception exception) {
+                Log.LogErrorFromException(exception);
+                return false;
+            }
+            return true;
+        }
+
+        private int ProcessLines(string itemSpec, Regex regex) {
+            int replacementCount = 0;
+
+            using (var writer = new StringWriter()) {
+                using (var reader = new StreamReader(itemSpec, _encodingValue)) {
+                    for (var line = reader.ReadLine(); line != null; line = reader.ReadLine()) {
+                        var newLine = regex.Replace(line, ReplacementText, _replacementCount);
+                        if (newLine != line)
+                            replacementCount++;
+                        writer.WriteLine(newLine);
+                    }
+                }
+
+                writer.Flush();
+                File.WriteAllText(itemSpec, writer.ToString(), _encodingValue);
+            }
+
+            return replacementCount;
+        }
+    }
+}

src/Tools/MSBuild.Orchard.Tasks/MSBuild.Orchard.Tasks.csproj

@@ -66,6 +66,7 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="FileUpdateLines.cs" />
     <Compile Include="FilterModuleBinaries.cs" />
     <Compile Include="StageProjectAlteration.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />