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** Copyright (C) 2021 The Qt Company Ltd.
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** This file is part of the Qt VS Tools.
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** $QT_BEGIN_LICENSE:GPL-EXCEPT$
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** Commercial License Usage
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****************************************************************************/
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#region Task TaskName="Flatten"
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#region Using
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using System.Collections.Generic;
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using System.Linq;
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using Microsoft.Build.Framework;
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using Microsoft.Build.Utilities;
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#endregion
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#region Comment
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/////////////////////////////////////////////////////////////////////////////////////////////////
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/// TASK Flatten
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/////////////////////////////////////////////////////////////////////////////////////////////////
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// Destructure items into a "flat" list of metadata. The output is a list of (Name, Value) pairs,
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// each corresponding to one item metadata. Semi-colon-separated lists will also expand to many
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// items in the output list, with the metadata name shared among them.
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// Example:
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// INPUT:
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// <QtMoc>
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// <InputFile>foo.h</InputFile>
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// <IncludePath>C:\FOO;D:\BAR</IncludePath>
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// </QtMoc>
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// OUTPUT:
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// <Result>
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// <Name>InputFile</Name>
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// <Value>foo.h</Value>
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// </Result>
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// <Result>
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// <Name>IncludePath</Name>
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// <Value>C:\FOO</Value>
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// </Result>
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// <Result>
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// <Name>IncludePath</Name>
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// <Value>D:\BAR</Value>
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// </Result>
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// Parameters:
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// in ITaskItem[] Items: list of items to flatten
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// in string[] Metadata: names of metadata to look for; omit to include all metadata
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// out ITaskItem[] Result: list of metadata from all items
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#endregion
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namespace QtVsTools.QtMsBuild.Tasks
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{
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public static class Flatten
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{
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public static bool Execute(
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#region Parameters
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Microsoft.Build.Framework.ITaskItem[] Items,
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out Microsoft.Build.Framework.ITaskItem[] Result,
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System.String[] Metadata = null)
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#endregion
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{
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#region Code
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Result = new ITaskItem[] { };
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var reserved = new HashSet<string>
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{
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"AccessedTime", "CreatedTime", "DefiningProjectDirectory",
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"DefiningProjectExtension", "DefiningProjectFullPath", "DefiningProjectName",
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"Directory", "Extension", "Filename", "FullPath", "Identity", "ModifiedTime",
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"RecursiveDir", "RelativeDir", "RootDir",
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};
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if (Metadata == null)
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Metadata = new string[0];
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var requestedNames = new HashSet<string>(Metadata.Where(x => !string.IsNullOrEmpty(x)));
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var newItems = new List<ITaskItem>();
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foreach (var item in Items) {
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var itemName = item.ItemSpec;
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var names = item.MetadataNames.Cast<string>().Where(x => !reserved.Contains(x)
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&& (!requestedNames.Any() || requestedNames.Contains(x)));
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foreach (string name in names) {
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var values = item.GetMetadata(name).Split(';');
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foreach (string value in values.Where(v => !string.IsNullOrEmpty(v))) {
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newItems.Add(new TaskItem(string.Format("{0}={1}", name, value),
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new Dictionary<string, string>
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{
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{ "Item", itemName },
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{ "Name", name },
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{ "Value", value },
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}));
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}
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}
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}
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Result = newItems.ToArray();
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#endregion
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return true;
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}
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}
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}
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#endregion
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