109 lines
3.4 KiB
C#
109 lines
3.4 KiB
C#
namespace Unosquare.Swan.Components
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{
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using System;
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using System.IO;
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using System.Linq;
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using System.Xml.Linq;
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/// <summary>
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/// Represents a CsProjFile (and FsProjFile) parser.
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/// </summary>
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/// <remarks>
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/// Based on https://github.com/maartenba/dotnetcli-init.
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/// </remarks>
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/// <typeparam name="T">The type of <c>CsProjMetadataBase</c>.</typeparam>
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/// <seealso cref="System.IDisposable" />
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public class CsProjFile<T>
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: IDisposable
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where T : CsProjMetadataBase
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{
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private readonly Stream _stream;
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private readonly bool _leaveOpen;
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private readonly XDocument _xmlDocument;
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/// <summary>
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/// Initializes a new instance of the <see cref="CsProjFile{T}"/> class.
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/// </summary>
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/// <param name="filename">The filename.</param>
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public CsProjFile(string filename = null)
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: this(OpenFile(filename))
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{
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// placeholder
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}
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/// <summary>
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/// Initializes a new instance of the <see cref="CsProjFile{T}"/> class.
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/// </summary>
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/// <param name="stream">The stream.</param>
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/// <param name="leaveOpen">if set to <c>true</c> [leave open].</param>
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/// <exception cref="ArgumentException">Project file is not of the new .csproj type.</exception>
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public CsProjFile(Stream stream, bool leaveOpen = false)
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{
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_stream = stream;
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_leaveOpen = leaveOpen;
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_xmlDocument = XDocument.Load(stream);
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var projectElement = _xmlDocument.Descendants("Project").FirstOrDefault();
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var sdkAttribute = projectElement?.Attribute("Sdk");
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var sdk = sdkAttribute?.Value;
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if (sdk != "Microsoft.NET.Sdk" && sdk != "Microsoft.NET.Sdk.Web")
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{
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throw new ArgumentException("Project file is not of the new .csproj type.");
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}
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Metadata = Activator.CreateInstance<T>();
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Metadata.SetData(_xmlDocument);
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}
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/// <summary>
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/// Gets the metadata.
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/// </summary>
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/// <value>
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/// The nu get metadata.
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/// </value>
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public T Metadata { get; }
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/// <summary>
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/// Saves this instance.
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/// </summary>
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public void Save()
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{
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_stream.SetLength(0);
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_stream.Position = 0;
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_xmlDocument.Save(_stream);
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}
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/// <inheritdoc />
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public void Dispose()
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{
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if (!_leaveOpen)
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{
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_stream?.Dispose();
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}
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}
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private static FileStream OpenFile(string filename)
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{
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if (filename == null)
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{
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filename = Directory
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.EnumerateFiles(Directory.GetCurrentDirectory(), "*.csproj", SearchOption.TopDirectoryOnly)
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.FirstOrDefault();
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}
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if (filename == null)
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{
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filename = Directory
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.EnumerateFiles(Directory.GetCurrentDirectory(), "*.fsproj", SearchOption.TopDirectoryOnly)
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.FirstOrDefault();
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}
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if (string.IsNullOrWhiteSpace(filename))
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throw new ArgumentNullException(nameof(filename));
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return File.Open(filename, FileMode.OpenOrCreate, FileAccess.ReadWrite);
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}
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}
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} |