105 строки
2.7 KiB
C#
105 строки
2.7 KiB
C#
using System;
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using System.IO;
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using Microsoft.Build.Utilities;
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using Microsoft.Build.Framework;
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namespace Xamarin.MacDev.Tasks
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{
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public abstract class OptimizeImageTaskBase : XamarinToolTask
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{
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ITaskItem inputImage;
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ITaskItem outputImage;
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#region Inputs
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[Required]
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public ITaskItem[] InputImages { get; set; }
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[Required]
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[Output]
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public ITaskItem[] OutputImages { get; set; }
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[Required]
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public string SdkDevPath { get; set; }
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#endregion
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string DevicePlatformBinDir {
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get { return Path.Combine (SdkDevPath, "Platforms", "iPhoneOS.platform", "Developer", "usr", "bin"); }
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}
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protected override string ToolName {
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get { return "pngcrush"; }
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}
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protected override string GenerateFullPathToTool ()
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{
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if (!string.IsNullOrEmpty (ToolPath))
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return Path.Combine (ToolPath, ToolExe);
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var path = Path.Combine (DevicePlatformBinDir, ToolExe);
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return File.Exists (path) ? path : ToolExe;
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}
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protected override string GenerateCommandLineCommands ()
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{
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var args = new CommandLineBuilder ();
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args.AppendSwitch ("-q");
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args.AppendSwitch ("-iphone");
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args.AppendSwitch ("-f");
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args.AppendSwitch ("0");
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args.AppendFileNameIfNotNull (inputImage.ItemSpec);
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args.AppendFileNameIfNotNull (outputImage.ItemSpec);
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return args.ToString ();
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}
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protected override void LogEventsFromTextOutput (string singleLine, MessageImportance messageImportance)
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{
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var tokens = singleLine.Split (new [] { ':' }, 2);
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if (tokens.Length == 2 && tokens[0].StartsWith ("libpng ", StringComparison.Ordinal)) {
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var type = tokens[0].Substring ("libpng ".Length).Trim ();
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switch (type) {
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case "warning":
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Log.LogWarning (null, null, null, inputImage.ItemSpec, 0, 0, 0, 0, "{0}", tokens[1].Trim ());
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break;
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case "error":
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Log.LogError (null, null, null, inputImage.ItemSpec, 0, 0, 0, 0, "{0}", tokens[1].Trim ());
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break;
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default:
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Log.LogError (null, null, null, inputImage.ItemSpec, 0, 0, 0, 0, "{0}", singleLine);
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break;
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}
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} else {
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Log.LogMessage (messageImportance, "{0}", singleLine);
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}
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}
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public override bool Execute ()
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{
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var result = true;
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for (var index = 0; index < this.InputImages.Length && index < this.OutputImages.Length; index++) {
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this.inputImage = this.InputImages[index];
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this.outputImage = this.OutputImages[index];
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Directory.CreateDirectory (Path.GetDirectoryName (outputImage.ItemSpec));
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result = result && base.Execute ();
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// Wait for the process to be disposed and avoid the error:
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// System.IO.IOException: Error creating standard error pipe
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// when optimizing many png images (>100)
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System.GC.Collect ();
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}
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return result;
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}
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}
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}
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