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debug-configuration-model.ts
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debug-configuration-model.ts
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/********************************************************************************
* Copyright (C) 2018 Red Hat, Inc. and others.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the Eclipse
* Public License v. 2.0 are satisfied: GNU General Public License, version 2
* with the GNU Classpath Exception which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
********************************************************************************/
import * as jsoncparser from 'jsonc-parser';
import URI from '@theia/core/lib/common/uri';
import { Resource, Disposable, DisposableCollection, Emitter, Event } from '@theia/core';
import { DebugConfiguration } from '../common/debug-common';
export class DebugConfigurationModel implements Disposable {
protected content: string | undefined;
protected json: DebugConfigurationModel.JsonContent;
protected readonly onDidChangeEmitter = new Emitter<void>();
readonly onDidChange: Event<void> = this.onDidChangeEmitter.event;
protected readonly toDispose = new DisposableCollection(
this.onDidChangeEmitter
);
constructor(
readonly provider: string,
readonly workspaceFolderUri: string | undefined,
protected readonly resource: Resource
) {
this.toDispose.push(resource);
if (resource.onDidChangeContents) {
this.toDispose.push(resource.onDidChangeContents(() => this.reconcile()));
}
this.json = this.parseConfigurations();
this.reconcile();
}
get uri(): URI {
return this.resource.uri;
}
dispose(): void {
this.toDispose.dispose();
}
get onDispose(): Event<void> {
return this.toDispose.onDispose;
}
get configurations(): DebugConfiguration[] {
return this.json.configurations;
}
async reconcile(): Promise<void> {
this.content = await this.readContents();
this.json = this.parseConfigurations();
this.onDidChangeEmitter.fire(undefined);
}
protected async readContents(): Promise<string | undefined> {
try {
return await this.resource.readContents();
} catch (e) {
return undefined;
}
}
protected parseConfigurations(): DebugConfigurationModel.JsonContent {
const configurations: DebugConfiguration[] = [];
if (!this.content) {
return {
version: '0.2.0',
configurations
};
}
const json: Partial<{
configurations: Partial<DebugConfiguration>[]
}> | undefined = jsoncparser.parse(this.content, undefined, { disallowComments: false });
if (json && 'configurations' in json) {
if (Array.isArray(json.configurations)) {
json.configurations.filter(DebugConfiguration.is);
for (const configuration of json.configurations) {
if (DebugConfiguration.is(configuration)) {
configurations.push(configuration);
}
}
}
}
return {
...json,
configurations
};
}
get exists(): boolean {
return this.content !== undefined;
}
async save(content: string): Promise<void> {
await Resource.save(this.resource, { content });
this.reconcile();
}
}
export namespace DebugConfigurationModel {
export interface JsonContent {
configurations: DebugConfiguration[]
// tslint:disable-next-line:no-any
[property: string]: any
}
}