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AssetsFileResolver.cs
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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using NuGet.Packaging.Core;
using NuGet.ProjectModel;
namespace Microsoft.NET.Build.Tasks
{
internal class AssetsFileResolver
{
private readonly IPackageResolver _packageResolver;
private IEnumerable<string> _excludedPackageIds;
private bool _preserveStoreLayout;
public AssetsFileResolver(IPackageResolver packageResolver)
{
_packageResolver = packageResolver;
}
public AssetsFileResolver WithExcludedPackages(IEnumerable<string> excludedPackageIds)
{
_excludedPackageIds = excludedPackageIds;
return this;
}
public AssetsFileResolver WithPreserveStoreLayout(bool preserveStoreLayout)
{
_preserveStoreLayout = preserveStoreLayout;
return this;
}
public IEnumerable<ResolvedFile> Resolve(ProjectContext projectContext, bool resolveRuntimeTargets = true)
{
List<ResolvedFile> results = new();
foreach (LockFileTargetLibrary targetLibrary in projectContext.GetRuntimeLibraries(_excludedPackageIds))
{
if (!targetLibrary.IsPackage())
{
continue;
}
var targetLibraryPackage = new PackageIdentity(targetLibrary.Name, targetLibrary.Version);
string pkgRoot;
string libraryPath = _packageResolver.GetPackageDirectory(targetLibrary.Name, targetLibrary.Version, out pkgRoot);
results.AddRange(GetResolvedFiles(targetLibrary.RuntimeAssemblies, targetLibraryPackage, libraryPath, pkgRoot, AssetType.Runtime));
results.AddRange(GetResolvedFiles(targetLibrary.NativeLibraries, targetLibraryPackage, libraryPath, pkgRoot, AssetType.Native));
if (resolveRuntimeTargets)
{
foreach (LockFileRuntimeTarget runtimeTarget in targetLibrary.RuntimeTargets.FilterPlaceholderFiles())
{
if (string.Equals(runtimeTarget.AssetType, "native", StringComparison.OrdinalIgnoreCase) ||
string.Equals(runtimeTarget.AssetType, "runtime", StringComparison.OrdinalIgnoreCase))
{
string sourcePath = Path.Combine(libraryPath, runtimeTarget.Path);
AssetType _assetType = AssetType.None;
Enum.TryParse<AssetType>(runtimeTarget.AssetType, true, out _assetType);
results.Add(
new ResolvedFile(
sourcePath: sourcePath,
destinationSubDirectory: GetDestinationSubDirectory(sourcePath,
pkgRoot,
GetRuntimeTargetDestinationSubDirectory(runtimeTarget)),
package: targetLibraryPackage,
assetType: _assetType));
}
}
}
foreach (LockFileItem resourceAssembly in targetLibrary.ResourceAssemblies.FilterPlaceholderFiles())
{
string locale;
string sourcePath = Path.Combine(libraryPath, resourceAssembly.Path);
if (!resourceAssembly.Properties.TryGetValue("locale", out locale))
{
locale = null;
}
results.Add(
new ResolvedFile(
sourcePath: sourcePath,
destinationSubDirectory: GetDestinationSubDirectory(sourcePath, pkgRoot, locale),
package: targetLibraryPackage,
assetType: AssetType.Resources));
}
}
return results;
}
private IEnumerable<ResolvedFile> GetResolvedFiles(IEnumerable<LockFileItem> items, PackageIdentity package, string libraryPath, string pkgRoot, AssetType assetType)
{
foreach (LockFileItem item in items.FilterPlaceholderFiles())
{
string srcpath = Path.Combine(libraryPath, item.Path);
yield return new ResolvedFile(
sourcePath: srcpath,
destinationSubDirectory: GetDestinationSubDirectory(srcpath, pkgRoot),
package: package,
assetType: assetType);
}
}
private static string GetRuntimeTargetDestinationSubDirectory(LockFileRuntimeTarget runtimeTarget)
{
if (!string.IsNullOrEmpty(runtimeTarget.Runtime))
{
return Path.GetDirectoryName(runtimeTarget.Path) + Path.DirectorySeparatorChar;
}
return null;
}
private string GetDestinationSubDirectory(string libraryPath, string pkgRoot, string destPath = null)
{
if (_preserveStoreLayout && pkgRoot != null)
{
if (!libraryPath.StartsWith(pkgRoot))
{
throw new BuildErrorException(Strings.IncorrectPackageRoot, pkgRoot, libraryPath);
}
destPath = Path.GetDirectoryName(libraryPath.Substring(pkgRoot.Length));
}
if (destPath != null && destPath[destPath.Length - 1] != Path.DirectorySeparatorChar)
{
destPath += Path.DirectorySeparatorChar;
}
return destPath;
}
}
}