/
OnChannelLink.ts
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/
OnChannelLink.ts
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/*
* Copyright © 2019 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 {
Configuration,
EventFired,
GraphQL,
HandlerContext,
HandlerResult,
Success,
Value,
} from "@atomist/automation-client";
import { EventHandler } from "@atomist/automation-client/lib/decorators";
import { HandleEvent } from "@atomist/automation-client/lib/HandleEvent";
import {
AddressChannels,
addressChannelsFor,
ChannelLinkListener,
ChannelLinkListenerInvocation,
CredentialsResolver,
PreferenceStoreFactory,
ProjectLoader,
RepoRefResolver,
resolveCredentialsPromise,
} from "@atomist/sdm";
import * as schema from "../../../typings/types";
/**
* A new channel has been linked to a repo
*/
@EventHandler("On channel link", GraphQL.subscription("OnChannelLink"))
export class OnChannelLink implements HandleEvent<schema.OnChannelLink.Subscription> {
@Value("")
public configuration: Configuration;
constructor(
private readonly projectLoader: ProjectLoader,
private readonly repoRefResolver: RepoRefResolver,
private readonly listeners: ChannelLinkListener[],
private readonly credentialsFactory: CredentialsResolver,
private readonly preferenceStoreFactory: PreferenceStoreFactory) {
}
public async handle(event: EventFired<schema.OnChannelLink.Subscription>,
context: HandlerContext): Promise<HandlerResult> {
const repo = event.data.ChannelLink[0].repo;
const id = this.repoRefResolver.toRemoteRepoRef(
repo,
{
branch: repo.defaultBranch,
});
const credentials = await resolveCredentialsPromise(this.credentialsFactory.eventHandlerCredentials(context, id));
const addressChannels: AddressChannels = addressChannelsFor(repo, context);
const preferences = this.preferenceStoreFactory(context);
const newlyLinkedChannelName = event.data.ChannelLink[0].channel.name;
await this.projectLoader.doWithProject({ credentials, id, context, readOnly: true }, async project => {
const invocation: ChannelLinkListenerInvocation = {
id,
context,
addressChannels,
preferences,
configuration: this.configuration,
credentials,
project,
newlyLinkedChannelName,
addressNewlyLinkedChannel: (msg, opts) => context.messageClient.addressChannels(msg, newlyLinkedChannelName, opts),
};
await Promise.all(this.listeners
.map(l => l(invocation)),
);
});
return Success;
}
}