Tasks.Targets

<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="Current">
  <UsingTask TaskName="Zip" TaskFactory="RoslynCodeTaskFactory" AssemblyFile="$(MSBuildToolsPath)\Microsoft.Build.Tasks.Core.dll">
    <ParameterGroup>
      <ZipFileName ParameterType="System.String" Required="true" />
      <Files ParameterType="Microsoft.Build.Framework.ITaskItem[]" Required="true" />
      <WorkingDirectory ParameterType="System.String" Required="true" />
    </ParameterGroup>
    <Task>
      <Using Namespace="System.IO.Compression" />
      <Code Type="Fragment" Language="cs">
        <![CDATA[
            string cwd = null;
            try {
                var di = new DirectoryInfo(WorkingDirectory);
                if (!di.Exists) {
                    Log.LogError(string.Format("{0} doesn't exist", WorkingDirectory));
                    return (Success = false);
                }
                cwd = Environment.CurrentDirectory;
                Environment.CurrentDirectory = di.FullName;
                //                     rw-r--r--   file       BSD
                const int regAttr = (0b110100100 + 0x8000) << 16;
                //                     rwxr-xr-x   file       BSD
                const int exeAttr = (0b111101101 + 0x8000) << 16;
                var propExternalAttributes = typeof(ZipArchiveEntry).GetProperty("ExternalAttributes");

                using Stream zipStream = new FileStream(Path.GetFullPath(ZipFileName), FileMode.Create, FileAccess.Write);
                using ZipArchive archive = new ZipArchive(zipStream, ZipArchiveMode.Create);

                foreach (ITaskItem fileItem in Files) {
                    string evaluatedInclude = fileItem.ItemSpec;
                    var fi = new FileInfo(evaluatedInclude);
                    if (!fi.FullName.StartsWith(di.FullName)) {
                        Log.LogError(string.Format("{0} not in {1}", evaluatedInclude, WorkingDirectory));
                        return (Success = false);
                    }
                    string filename = fileItem.GetMetadata("Link");
                    if (string.IsNullOrEmpty(filename)) {
                        filename = fi.FullName;
                    }
                    var archivename = fi.FullName.Substring(di.FullName.Length).Replace('\\', '/').TrimStart(new char [] { '/' });
                    bool isExe = archivename.EndsWith(".ps1") || archivename.EndsWith(".sh");

                    ZipArchiveEntry entry = archive.CreateEntry(archivename);
                    using Stream fileStreamInZip = entry.Open();
                    using Stream fileStream = new FileStream(filename, FileMode.Open, FileAccess.Read);

                    fileStream.CopyTo(fileStreamInZip);
                    //entry.ExternalAttributes = isExe ? exeAttr : regAttr;
                    propExternalAttributes.SetValue(entry, isExe ? exeAttr : regAttr);
                }
                Success = true;
            } catch (Exception ex) {
                Success = false;
                Log.LogErrorFromException(ex);
            } finally {
                if (cwd != null) {
                    Environment.CurrentDirectory = cwd;
                }
            }
        ]]>
      </Code>
    </Task>
  </UsingTask>

  <UsingTask TaskName="FileUpdate" TaskFactory="RoslynCodeTaskFactory" AssemblyFile="$(MSBuildToolsPath)\Microsoft.Build.Tasks.Core.dll">
    <ParameterGroup>
      <Files ParameterType="Microsoft.Build.Framework.ITaskItem[]" Required="true" />
      <Expression ParameterType="System.String" Required="true" />
      <Replacement ParameterType="System.String" Required="true" />
    </ParameterGroup>
    <Task>
      <Using Namespace="System.Text.RegularExpressions" />
      <Code Type="Fragment" Language="cs">
        <![CDATA[
        try {
          System.Text.RegularExpressions.Regex replaceRegex = new System.Text.RegularExpressions.Regex(Expression);
          foreach(ITaskItem item in Files) {
            string fileName = item.ItemSpec;
            Log.LogMessage(string.Format("Updating File \"{0}\".", fileName));
            string buffer = File.ReadAllText(fileName);
            buffer = replaceRegex.Replace(buffer, Replacement);
            File.WriteAllText(fileName, buffer);
          }
          Success = true;
        } catch(Exception ex) {
          Success = false;
          Log.LogErrorFromException(ex);
        }
        ]]>
      </Code>
    </Task>
  </UsingTask>
</Project>