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如何使用Azure DevOps REST Api从Git存储库下载分支中的文件?

分类: 技术问答 • 2022-05-19 11:00:38
问题描述：

对于master分支中的文件，我可以使用以下URL- http://tfsserver:8080/tfs/DefaultCollection/TFSProject/_apis/git/repositories/GitRepo/items?path = FilePath& api-版本= 4.1

For a file in the master branch I can use the following URL - http://tfsserver:8080/tfs/DefaultCollection/TFSProject/_apis/git/repositories/GitRepo/items?path=FilePath&api-version=4.1

但是如果我需要从分支机构下载文件怎么办?

But what if I need to download a file from the branch?

P.S.

我完全知道我可以克隆一个git仓库.我特别需要REST API.

I know perfectly well that I can clone a git repository. I need REST API specifically.

编辑1

因此，我尝试了以下代码:

So, I tried the following code:

$Url = "http://tfsserver:8080/tfs/DefaultCollection/code/_apis/git/repositories/xyz/itemsbatch?api-version=4.1"
$Body = @"
{
    "itemDescriptors": [
    {
        "path": "/Bootstrap.ps1",
        "version": "shelve/vsts",
        "versionType": "branch"
    }]
}
"@
Invoke-RestMethod -UseDefaultCredentials -Uri $Url -OutFile $PSScriptRoot\AutomationBootstrapImpl.ps1 -Method Post -ContentType "application/json" -Body $Body

成功，但是生成的文件与我期望的不完全相同:

It succeeds, but the generated file is not exactly what I expected:

{"count":1,"value":[[{"objectId":"ceb9d83e971abdd3326d67e25b20c2cb1b4943e2","gitObjectType":"blob","commitId":"d4a039914002613e775f6274aee6489b244a42a7","path":"/bootstrap.ps1","url":"http://tfsserver:8080/tfs/DefaultCollection/code/_apis/git/repositories/xyz/items/bootstrap.ps1?versionType=Branch&version=shelve%2Fvsts&versionOptions=None"}]]}

但是，它提供了可用于从分支获取文件的URL- http://tfsserver:8080/tfs/DefaultCollection/code/_apis/git/repositories/xyz/items/bootstrap.ps1?versionType = Branch& version = shelve％2Fvsts& versionOptions = None

However, it gives the URL I can use to get the file from branch - http://tfsserver:8080/tfs/DefaultCollection/code/_apis/git/repositories/xyz/items/bootstrap.ps1?versionType=Branch&version=shelve%2Fvsts&versionOptions=None

所以，我们开始:

$Url = "http://tfsserver:8080/tfs/DefaultCollection/code/_apis/git/repositories/xyz/items/bootstrap.ps1?versionType=Branch&version=shelve/vsts"
Invoke-RestMethod -UseDefaultCredentials -Uri $Url -OutFile $PSScriptRoot\AutomationBootstrapImpl.ps1

它可以按预期工作.但是我仍然不知道这个API方法的名字是什么?

And it works as expected. But I still do not know what is the name of this API method?

答

类型为的 versionType > GitVersionType :

The GetItems Batch API does include a versionType of type GitVersionType:

版本类型(分支，标记或提交).确定ID的解释方式

Version type (branch, tag, or commit). Determines how Id is interpreted

因此，如果您将REST API URL添加到属性中，则:

So if you add to your REST API URL the attributes:

?versionType=Branch&version=myBranch

这应该足以从特定分支获取项目

That should be enough to get the items from a specific branch

如OP所述，它提供了一个指向以下内容的中间URL:

As the OP mentions, it gives an intermediate URL which points to:

http://tfsserver:8080/tfs/{organization}/{project}/_apis/git/repositories/{repositoryId}/items/{path}?versionType=Branch&version=myBranch

这意味着:

  • it uses as expected ?versionType=Branch&version=myBranch
  • But it uses _apis/git/repositories/{repositoryId}/items Items Get API, not _apis/git/repositories/{repositoryId}/itemsbatch

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