模仿msbuild进程的程序集解析

Question

我正在编写一个验证工具,用于检查项目中引用的文件版本.我想使用MSBuild使用的相同解析过程.

例如,Assembly.Load(..)需要一个完全限定的程序集名称.但是,在项目文件中,我们可能只有"System.Xml"之类的东西.MSBuild可能使用项目的目标框架版本和其他一些启发式来决定加载哪个版本的System.Xml.

你将如何模仿(或直接使用)msbuild的装配解决过程？

换句话说,在运行时,我想获取字符串"System.Xml",以及.csproj文件中找到的其他信息,并找到msbuild将找到的相同文件.

Answer 1

我今天遇到了这个问题，我找到了这篇关于如何做到这一点的旧博客文章：

http://blogs.msdn.com/b/jomo_fisher/archive/2008/05/22/programmatically-resolve- assembly-name-to-full-path-the-same-way-msbuild-does.aspx

我尝试了一下，效果很好！我修改了代码以在可能的情况下查找 4.5.1 版本的程序集，这就是我现在所拥有的：

#if INTERACTIVE
#r "Microsoft.Build.Engine" 
#r "Microsoft.Build.Framework"
#r "Microsoft.Build.Tasks.v4.0"
#r "Microsoft.Build.Utilities.v4.0"
#endif

open System
open System.Reflection
open Microsoft.Build.Tasks
open Microsoft.Build.Utilities
open Microsoft.Build.Framework
open Microsoft.Build.BuildEngine

/// Reference resolution results. All paths are fully qualified.
type ResolutionResults = {
    referencePaths:string array
    referenceDependencyPaths:string array
    relatedPaths:string array
    referenceSatellitePaths:string array
    referenceScatterPaths:string array
    referenceCopyLocalPaths:string array
    suggestedBindingRedirects:string array
    }


let resolve (references:string array, outputDirectory:string) =
    let x = { new IBuildEngine with
                member be.BuildProjectFile(projectFileName, targetNames, globalProperties, targetOutputs) = true
                member be.LogCustomEvent(e) = ()
                member be.LogErrorEvent(e) = ()
                member be.LogMessageEvent(e) = ()
                member be.LogWarningEvent(e) = ()
                member be.ColumnNumberOfTaskNode with get() = 1
                member be.ContinueOnError with get() = true
                member be.LineNumberOfTaskNode with get() = 1
                member be.ProjectFileOfTaskNode with get() = "" }

    let rar = new ResolveAssemblyReference()
    rar.BuildEngine <- x
    rar.IgnoreVersionForFrameworkReferences <- true
    rar.TargetFrameworkVersion <- "v4.5.1"
    rar.TargetedRuntimeVersion <- "v4.5.1"
    rar.TargetFrameworkDirectories <- [||] //[|@"C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\"|]
    rar.Assemblies <- [|for r in references -> new Microsoft.Build.Utilities.TaskItem(r) :> ITaskItem|]
    rar.AutoUnify <- true
    rar.SearchPaths <- [| "{CandidateAssemblyFiles}"
                          "{HintPathFromItem}"
                          "{TargetFrameworkDirectory}"
                         // "{Registry:Software\Microsoft\.NetFramework,v3.5,AssemblyFoldersEx}"
                          "{AssemblyFolders}"
                          "{GAC}"
                          "{RawFileName}"
                          outputDirectory |]

    rar.AllowedAssemblyExtensions <- [| ".exe"; ".dll" |]
    rar.TargetProcessorArchitecture <- "x86"
    if not (rar.Execute()) then
        failwith "Could not resolve"
    {
        referencePaths = [| for p in rar.ResolvedFiles -> p.ItemSpec |]
        referenceDependencyPaths = [| for p in rar.ResolvedDependencyFiles -> p.ItemSpec |]
        relatedPaths = [| for p in rar.RelatedFiles -> p.ItemSpec |]
        referenceSatellitePaths = [| for p in rar.SatelliteFiles -> p.ItemSpec |]
        referenceScatterPaths = [| for p in rar.ScatterFiles -> p.ItemSpec |]
        referenceCopyLocalPaths = [| for p in rar.CopyLocalFiles -> p.ItemSpec |]
        suggestedBindingRedirects = [| for p in rar.SuggestedRedirects -> p.ItemSpec |]
    }



[<EntryPoint>]
let main argv = 
    try
      let s = resolve([| "System"
                         "System.Data"
                         "System.Core, Version=4.0.0.0"
                         "Microsoft.SqlServer.Replication" |], "")
      printfn "%A" s.referencePaths
    finally
      ignore (System.Console.ReadKey())

    0