Typescript VSCode扩展名：获取旧版本和新版本的文件

我正在尝试开发一个VSCode扩展，它需要当前打开的文件和以前git修订/提交的相同文件。这与在vs代码中单击“打开更改”按钮相同

我尝试使用SCM和QuickDiffProvider，如图所示，但在尝试用vscode打开旧文件时，它给出了“无法解析资源”

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来自extension.ts的代码片段

let folder: string = vscode.env.appRoot;
let scm: vscode.SourceControl | undefined;
if (vscode.workspace.workspaceFolders) {
    let rootUri = vscode.workspace.workspaceFolders[0].uri;
    scm = vscode.scm.createSourceControl("MyDiff", "MyDiff", rootUri);
    folder = rootUri.fsPath;
    var repo = new Repository(vscode.workspace.workspaceFolders[0]);
    scm.quickDiffProvider = repo;
    let changedResources = scm.createResourceGroup("workingTree", "Changes");
    // repo.getResourceStates().then((result) => {
    //     changedResources.resourceStates = result;
    // });
    // context.subscriptions.push(changedResources);
    var currentlyOpenTabfileUri = vscode.window.activeTextEditor?.document.uri;
    if(currentlyOpenTabfileUri){
        if(repo.provideOriginalResource){
            const repositoryUri = repo.provideOriginalResource(currentlyOpenTabfileUri, null);
            console.log(repositoryUri);
            console.log(currentlyOpenTabfileUri);
            try{
                vscode.commands.executeCommand('vscode.open', currentlyOpenTabfileUri);
                vscode.commands.executeCommand('vscode.open', repositoryUri);
                vscode.commands.executeCommand('vscode.diff', repositoryUri, currentlyOpenTabfileUri,  `Old - New`);
            }
            catch(err){
                console.error(err);
            }
        }
    }
}

export const JSFIDDLE_SCHEME = 'MyDiff';
import { QuickDiffProvider, Uri, CancellationToken, ProviderResult, WorkspaceFolder, workspace, window, env } from "vscode";
import * as path from 'path';


export class Repository implements QuickDiffProvider {

    constructor(private workspaceFolder: WorkspaceFolder) { }

    provideOriginalResource?(uri: Uri, token: CancellationToken|null): ProviderResult<Uri> {
        // converts the local file uri to jsfiddle:file.ext
        const relativePath = workspace.asRelativePath(uri.fsPath);
        return Uri.parse(`${JSFIDDLE_SCHEME}:${relativePath}`);
    }

    /**
     * Enumerates the resources under source control.
     */
    provideSourceControlledResources(): Uri[] {
        return [
            Uri.file(this.createLocalResourcePath('json'))
        ];
    }

    /**
     * Creates a local file path in the local workspace that corresponds to the part of the 
     * fiddle denoted by the given extension.
     *
     * @param extension fiddle part, which is also used as a file extension
     * @returns path of the locally cloned fiddle resource ending with the given extension
     */
    createLocalResourcePath(extension: string) {
        return path.join(this.workspaceFolder.uri.fsPath, extension);
    }
}

Repository.ts

let folder: string = vscode.env.appRoot;
let scm: vscode.SourceControl | undefined;
if (vscode.workspace.workspaceFolders) {
    let rootUri = vscode.workspace.workspaceFolders[0].uri;
    scm = vscode.scm.createSourceControl("MyDiff", "MyDiff", rootUri);
    folder = rootUri.fsPath;
    var repo = new Repository(vscode.workspace.workspaceFolders[0]);
    scm.quickDiffProvider = repo;
    let changedResources = scm.createResourceGroup("workingTree", "Changes");
    // repo.getResourceStates().then((result) => {
    //     changedResources.resourceStates = result;
    // });
    // context.subscriptions.push(changedResources);
    var currentlyOpenTabfileUri = vscode.window.activeTextEditor?.document.uri;
    if(currentlyOpenTabfileUri){
        if(repo.provideOriginalResource){
            const repositoryUri = repo.provideOriginalResource(currentlyOpenTabfileUri, null);
            console.log(repositoryUri);
            console.log(currentlyOpenTabfileUri);
            try{
                vscode.commands.executeCommand('vscode.open', currentlyOpenTabfileUri);
                vscode.commands.executeCommand('vscode.open', repositoryUri);
                vscode.commands.executeCommand('vscode.diff', repositoryUri, currentlyOpenTabfileUri,  `Old - New`);
            }
            catch(err){
                console.error(err);
            }
        }
    }
}

export const JSFIDDLE_SCHEME = 'MyDiff';
import { QuickDiffProvider, Uri, CancellationToken, ProviderResult, WorkspaceFolder, workspace, window, env } from "vscode";
import * as path from 'path';


export class Repository implements QuickDiffProvider {

    constructor(private workspaceFolder: WorkspaceFolder) { }

    provideOriginalResource?(uri: Uri, token: CancellationToken|null): ProviderResult<Uri> {
        // converts the local file uri to jsfiddle:file.ext
        const relativePath = workspace.asRelativePath(uri.fsPath);
        return Uri.parse(`${JSFIDDLE_SCHEME}:${relativePath}`);
    }

    /**
     * Enumerates the resources under source control.
     */
    provideSourceControlledResources(): Uri[] {
        return [
            Uri.file(this.createLocalResourcePath('json'))
        ];
    }

    /**
     * Creates a local file path in the local workspace that corresponds to the part of the 
     * fiddle denoted by the given extension.
     *
     * @param extension fiddle part, which is also used as a file extension
     * @returns path of the locally cloned fiddle resource ending with the given extension
     */
    createLocalResourcePath(extension: string) {
        return path.join(this.workspaceFolder.uri.fsPath, extension);
    }
}

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简而言之，我在寻找什么：
我想在左侧视图（旧）和右侧视图（新）中获取文件内容，如我的扩展名中的openChange所示。其目的是编写一个自定义比较方法，并以html格式存储结果，而不是以diff的形式显示并进行并排比较

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在苦苦寻找替代解决方案以获得文件差异后，我发现我们可以使用

vscode.editors

访问所有打开的编辑器

示例：在git diff中，我们将有两个编辑器（左：旧和右：新），因此我们可以使用以下代码访问新旧内容

if (editors.length === 2) {
    oldContent = editors[0].document.getText();
    newContent = editors[1].document.getText();
}

如果我们使用git lens，那么我们也可以使用相同的代码获得旧提交的差异，这是一个额外的好处（至少对于我的扩展来说）

这种方法的唯一缺点是，如果在两列中打开两个编辑器，它也会工作（这对于我的扩展来说实际上很好）