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Merge pull request #30337 from Microsoft/joh/remote
Experiment: remote file system
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110 changes: 110 additions & 0 deletions
110
src/vs/workbench/services/files/electron-browser/remoteFileService.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,110 @@ | ||
| /*--------------------------------------------------------------------------------------------- | ||
| * Copyright (c) Microsoft Corporation. All rights reserved. | ||
| * Licensed under the MIT License. See License.txt in the project root for license information. | ||
| *--------------------------------------------------------------------------------------------*/ | ||
| 'use strict'; | ||
|
|
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| import URI from 'vs/base/common/uri'; | ||
| import { FileService } from 'vs/workbench/services/files/electron-browser/fileService'; | ||
| import { IContent, IStreamContent, IFileStat, IResolveContentOptions, IUpdateContentOptions, FileChangesEvent, FileChangeType } from "vs/platform/files/common/files"; | ||
| import { TPromise } from "vs/base/common/winjs.base"; | ||
| import Event from "vs/base/common/event"; | ||
| import { EventEmitter } from "events"; | ||
| import { basename } from "path"; | ||
| import { IDisposable } from "vs/base/common/lifecycle"; | ||
|
|
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| export interface IRemoteFileSystemProvider { | ||
| onDidChange: Event<URI>; | ||
| resolve(resource: URI): TPromise<string>; | ||
| update(resource: URI, content: string): TPromise<any>; | ||
| } | ||
|
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| export class RemoteFileService extends FileService { | ||
|
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| private readonly _provider = new Map<string, IRemoteFileSystemProvider>(); | ||
|
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| registerProvider(authority: string, provider: IRemoteFileSystemProvider): IDisposable { | ||
| if (this._provider.has(authority)) { | ||
| throw new Error(); | ||
| } | ||
|
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| this._provider.set(authority, provider); | ||
| const reg = provider.onDidChange(e => { | ||
| // forward change events | ||
| this._onFileChanges.fire(new FileChangesEvent([{ resource: e, type: FileChangeType.UPDATED }])); | ||
| }); | ||
| return { | ||
| dispose: () => { | ||
| this._provider.delete(authority); | ||
| reg.dispose(); | ||
| } | ||
| }; | ||
| } | ||
|
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| // --- resolve | ||
|
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| resolveContent(resource: URI, options?: IResolveContentOptions): TPromise<IContent> { | ||
| if (this._provider.has(resource.authority)) { | ||
| return this._doResolveContent(resource); | ||
| } | ||
|
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| return super.resolveContent(resource, options); | ||
| } | ||
|
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| resolveStreamContent(resource: URI, options?: IResolveContentOptions): TPromise<IStreamContent> { | ||
| if (this._provider.has(resource.authority)) { | ||
| return this._doResolveContent(resource).then(RemoteFileService._asStreamContent); | ||
| } | ||
|
|
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| return super.resolveStreamContent(resource, options); | ||
| } | ||
|
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| private async _doResolveContent(resource: URI): TPromise<IContent> { | ||
|
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| const stat = RemoteFileService._createFakeStat(resource); | ||
| const value = await this._provider.get(resource.authority).resolve(resource); | ||
| return <any>{ ...stat, value }; | ||
| } | ||
|
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| // --- saving | ||
|
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| updateContent(resource: URI, value: string, options?: IUpdateContentOptions): TPromise<IFileStat> { | ||
| if (this._provider.has(resource.authority)) { | ||
| return this._doUpdateContent(resource, value).then(RemoteFileService._createFakeStat); | ||
| } | ||
|
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| return super.updateContent(resource, value, options); | ||
| } | ||
|
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| private async _doUpdateContent(resource: URI, content: string): TPromise<URI> { | ||
| await this._provider.get(resource.authority).update(resource, content); | ||
| return resource; | ||
| } | ||
|
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| // --- util | ||
|
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| private static _createFakeStat(resource: URI): IFileStat { | ||
|
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| return <IFileStat>{ | ||
| resource, | ||
| name: basename(resource.path), | ||
| encoding: 'utf8', | ||
| mtime: Date.now(), | ||
| etag: Date.now().toString(16), | ||
| isDirectory: false, | ||
| hasChildren: false | ||
| }; | ||
| } | ||
|
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| private static _asStreamContent(content: IContent): IStreamContent { | ||
| const emitter = new EventEmitter(); | ||
| const { value } = content; | ||
| const result = <IStreamContent><any>content; | ||
| result.value = emitter; | ||
| setTimeout(() => { | ||
| emitter.emit('data', value); | ||
| emitter.emit('end'); | ||
| }, 0); | ||
| return result; | ||
| } | ||
| } |