如何在fsharp中使用libgit2sharp

Question

这是在带有net471的Server 2016上，它的行为应该类似于windows 10。

所以我在我的paket.dependencies中通过nuget LibGit2Sharp prerelease下载，它解析为

LibGit2Sharp (0.26.0-preview-0027)
LibGit2Sharp.NativeBinaries (1.0.226) - restriction: >= netstandard2.0

在新的fsi (使用ionide )中，我可以引用LibGit2Sharp.dll并打开LibGit2Sharp名称空间，但实例化存储库会抛出以下错误：

Microsoft (R) F# Interactive version 10.1.0 for F# 4.1

> #r "../../packages/play/LibGit2Sharp/lib/netstandard2.0/LibGit2Sharp.dll";;

--> Referenced 'd:\scripts2dev\libwba\src\play\../../packages/play/LibGit2Sharp/lib/netstandard2.0/LibGit2Sharp.dll' (file may be locked by F# Interactive process)

> open LibGit2Sharp;;
> let  repo = new Repository("path\to\repo.git");;
System.TypeInitializationException: The type initializer for 'LibGit2Sharp.Core.NativeMethods' threw an exception. ---> System.DllNotFoundException: Unable to load DLL 'git2-b0d9952': The specified module could not be found. (Exception from HRESULT: 0x8007007E)
   at LibGit2Sharp.Core.NativeMethods.git_libgit2_init()
   at LibGit2Sharp.Core.NativeMethods.InitializeNativeLibrary()
   at LibGit2Sharp.Core.NativeMethods..cctor()
   --- End of inner exception stack trace ---
   at LibGit2Sharp.Core.NativeMethods.git_repository_open(git_repository*& repository, FilePath path)
   at LibGit2Sharp.Core.Proxy.git_repository_open(String path)
   at LibGit2Sharp.Repository..ctor(String path, RepositoryOptions options, RepositoryRequiredParameter requiredParameter)
   at <StartupCode$FSI_0003>.$FSI_0003.main@() in d:\scripts2dev\libwba\src\play\LibGit2Sharp.fsx:line 4
Stopped due to error

而且我不能引用来自LibGit2Sharp.NativeBinaries的dll，因为它抛出

> #r @"../..\packages\play\LibGit2Sharp.NativeBinaries\runtimes\win-x64\native\git2-b0d9952.dll";;

LibGit2Sharp.fsx(7,1): error FS0229: Error opening binary file 'd:\scripts2dev\libwba\src\play\../..\packages\play\LibGit2Sharp.NativeBinaries\runtimes\win-x64\native\git2-b0d9952.dll': d:\scripts2dev\libwba\packages\play\LibGit2Sharp.NativeBinaries\runtimes\win-x64\native\git2-b0d9952.dll: bad cli header, rva 0

LibGit2Sharp.fsx(7,1): error FS3160: Problem reading assembly 'd:\scripts2dev\libwba\src\play\../..\packages\play\LibGit2Sharp.NativeBinaries\runtimes\win-x64\native\git2-b0d9952.dll': Processing of a script fragment has stopped because an exception has been raised

我遗漏了什么？如何使用已编译的库？

Answer 1

如果你通过kernel32的LoadLibrary加载原生动态链接库，它应该可以工作。这有帮助吗？

另请参阅https://christoph.ruegg.name/blog/loading-native-dlls-in-fsharp-interactive.html

[<DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)>]
extern IntPtr LoadLibrary(string lpFileName);