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OnPullRequest.ts
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OnPullRequest.ts
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/*
* Copyright © 2018 Atomist, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { EventFired, EventHandler, HandleEvent, HandlerContext, HandlerResult, Success } from "@atomist/automation-client";
import { subscription } from "@atomist/automation-client/graph/graphQL";
import { AddressChannels, addressChannelsFor } from "../../../api/context/addressChannels";
import { PullRequestListener, PullRequestListenerInvocation } from "../../../api/listener/PullRequestListener";
import { CredentialsResolver } from "../../../spi/credentials/CredentialsResolver";
import { ProjectLoader } from "../../../spi/project/ProjectLoader";
import { RepoRefResolver } from "../../../spi/repo-ref/RepoRefResolver";
import * as schema from "../../../typings/types";
/**
* A pull request has been raised
*/
@EventHandler("On pull request", subscription("OnPullRequest"))
export class OnPullRequest implements HandleEvent<schema.OnPullRequest.Subscription> {
constructor(
private readonly projectLoader: ProjectLoader,
private readonly repoRefResolver: RepoRefResolver,
private readonly listeners: PullRequestListener[],
private readonly credentialsFactory: CredentialsResolver) {
}
public async handle(event: EventFired<schema.OnPullRequest.Subscription>,
context: HandlerContext,
params: this): Promise<HandlerResult> {
const pullRequest = event.data.PullRequest[0];
const repo = pullRequest.repo;
const id = params.repoRefResolver.toRemoteRepoRef(repo, { sha: pullRequest.head.sha });
const credentials = this.credentialsFactory.eventHandlerCredentials(context, id);
const addressChannels: AddressChannels = addressChannelsFor(repo, context);
await this.projectLoader.doWithProject({credentials, id, context, readOnly: true}, async project => {
const prli: PullRequestListenerInvocation = {
id,
context,
addressChannels,
credentials,
project,
pullRequest,
};
await Promise.all(params.listeners
.map(l => l(prli)),
);
});
return Success;
}
}