/
diffRendering.ts
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/
diffRendering.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 {
GitHubRepoRef,
logger,
RemoteRepoRef,
} from "@atomist/automation-client";
import {
Attachment,
url,
} from "@atomist/slack-messages";
import { listCommitsBetween } from "../github/ghub";
import {
avatarUrl,
commitUrl,
RepoInfo,
truncateCommitMessage,
userUrl,
} from "../lifecycleHelpers";
/* tslint:disable:no-unused-variable */
export function linkToDiff(id: RemoteRepoRef, start: string, end: string, endDescription?: string): string {
return url(diffUrl(id, start, end), `(Compare with ${endDescription || end.substr(0, 6)})`);
}
function diffUrl(id: RemoteRepoRef, start: string, end: string): string {
return `${id.url}/compare/${start}...${end}`;
}
export async function renderDiff(token: string, id: GitHubRepoRef, start: string, end: string, color: string): Promise<Attachment[]> {
const fromGitHub = await listCommitsBetween(token, id, start, end);
const commits: CommitForRendering[] = fromGitHub.commits.map(c => ({
message: c.commit.message,
sha: c.sha,
author: c.author,
}));
logger.info("Rendering %d commits in diff", commits.length);
return render({ owner: id.owner, name: id.repo }, commits, diffUrl(id, start, end), color);
}
// exported for testing
export interface CommitForRendering {
sha: string;
message: string;
author: {
login: string,
};
}
function render(repo: RepoInfo, commits: CommitForRendering[], fullDiffLink: string, color: string): Promise<Attachment[]> {
const commitsGroupedByAuthor = [];
let author;
let commitsByAuthor: any = {};
// let unknownCommitter = false;
for (const commit of commits) {
const ca = (commit.author !== undefined && commit.author.login && commit.author.login !== ""
? commit.author.login : "(unknown)");
// if (ca === "(unknown)") {
// unknownCommitter = true;
// }
if (author === undefined || author !== ca) {
commitsByAuthor = {
author: ca,
commits: [],
};
author = ca;
commitsGroupedByAuthor.push(commitsByAuthor);
}
if (ca === author) {
commitsByAuthor.commits.push(commit);
}
}
let attachments: Attachment[] = [];
commitsGroupedByAuthor
.forEach(cgba => {
const a = cgba.author;
const message = cgba.commits.map(c => renderCommitMessage(repo, c)).join("\n");
const fallback = `lots of commits`;
const attachment: Attachment = {
author_name: `@${a}`,
author_link: userUrl(repo, a),
author_icon: avatarUrl(repo, a),
text: message,
mrkdwn_in: ["text"],
color,
fallback,
actions: [],
};
attachments.push(attachment);
});
// Limit number of commits by author to 3
if (attachments.length > 3) {
attachments = attachments.slice(0, 3);
const fullDiffDescription = `... and more! (${commits.length} total commits)`;
const attachment: Attachment = {
title_link: fullDiffLink,
title: fullDiffDescription,
color,
fallback: fullDiffDescription,
actions: [],
};
attachments.push(attachment);
}
// if (attachments.length > 0) {
// const lastAttachment = attachments[attachments.length - 1];
// if (unknownCommitter) {
// lastAttachment.footer_icon = "https://images.atomist.com/rug/question.png";
// lastAttachment.footer = `Unrecognized author. Please use a known email address to commit.`;
// } else {
// lastAttachment.footer_icon = "https://images.atomist.com/rug/commit.png";
// if (lastAttachment.footer != null) {
// lastAttachment.footer = `${url(repoUrl(repo), repoSlug(repo))} - ${lastAttachment.footer}`;
// } else {
// lastAttachment.footer = url(repoUrl(repo), repoSlug(repo));
// }
// lastAttachment.ts = Math.floor(Date.parse(push.timestamp) / 1000);
// }
return Promise.resolve(attachments);
}
// exported for testing
export function renderCommitMessage(repo: RepoInfo, commitNode: CommitForRendering): string {
// Cut commit to 50 chars of first line
const m = truncateCommitMessage(commitNode.message, repo);
return "`" + url(commitUrl(repo, commitNode), commitNode.sha.substring(0, 7)) + "` " + m;
}