92 lines
2.5 KiB
C#
92 lines
2.5 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using DotNet.Globbing;
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using FluentValidation;
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using MfGames.Gallium;
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using MfGames.Nitride.Contents;
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using Zio;
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namespace MfGames.Nitride.IO.Contents;
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/// <summary>
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/// A module that reads files from the file system and wraps them in an
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/// entity with the following components: UPath, IContent.
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/// </summary>
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[WithProperties]
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public partial class ReadFiles : FileSystemOperationBase
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{
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private readonly IValidator<ReadFiles> validator;
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public ReadFiles(
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IValidator<ReadFiles> validator,
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IFileSystem fileSystem)
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: base(fileSystem)
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{
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this.validator = validator;
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}
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/// <summary>
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/// Gets or sets the file pattern to retrieve fields. This supports
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/// globbing both "*" and "**" patterns such as "**/*".
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/// </summary>
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public string Pattern { get; set; } = null!;
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/// <summary>
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/// Reads all files from the file system, filtering them out by the
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/// minimatch pattern (as defined by DotNet.Blob).
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/// </summary>
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/// <returns>A populated collection of entities.</returns>
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public IEnumerable<Entity> Run()
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{
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return this.Run(Array.Empty<Entity>());
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}
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/// <summary>
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/// Reads all files from the file system, filtering them out by the
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/// minimatch pattern (as defined by DotNet.Blob).
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/// </summary>
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/// <returns>A populated collection of entities.</returns>
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public override IEnumerable<Entity> Run(IEnumerable<Entity> input)
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{
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this.validator.ValidateAndThrow(this);
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var glob = Glob.Parse(this.Pattern);
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IEnumerable<FileEntry> files = this.FileSystem.EnumerateFileEntries("/", "*", SearchOption.AllDirectories)
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.Where(x => glob.IsMatch(x.Path.ToString()));
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IEnumerable<Entity> entities = files.Select(this.ToEntity);
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return entities;
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}
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public ReadFiles WithFileSystem(IFileSystem value)
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{
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this.FileSystem = value;
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return this;
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}
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/// <summary>
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/// Creates an entity with the standard components for all Zio-based
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/// files. This attaches the file's path relative to the file system
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/// and a way of accessing the content from the file system.
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/// </summary>
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/// <param name="file">The Zio file entry.</param>
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/// <returns>An Entity with appropriate content.</returns>
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private Entity ToEntity(FileEntry file)
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{
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Entity entity = new Entity().Set(file.Path)
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.SetBinaryContent(new FileEntryBinaryContent(file));
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return entity;
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}
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}
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