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import React from 'dom-chef';
import select from 'select-dom';
import PencilIcon from 'octicon/pencil.svg';
import elementReady from 'element-ready';
import * as pageDetect from 'github-url-detection';
import features from '.';
import GitHubURL from '../github-helpers/github-url';
import {isPermalink} from '../github-helpers';
import getDefaultBranch from '../github-helpers/get-default-branch';
async function init(): Promise<void | false> {
const readmeHeader = await elementReady('#readme .Box-header h2');
if (!readmeHeader) {
return false;
}
const isPermalink_ = await isPermalink();
const filename = readmeHeader.textContent!.trim();
const fileLink = select<HTMLAnchorElement>(`.js-navigation-open[title="${filename}"]`)!;
const url = new GitHubURL(fileLink.href).assign({
route: 'edit'
});
if (isPermalink_) {
url.branch = await getDefaultBranch(); // Permalinks can't be edited
}
// The button already exists on repos you can push to.
const existingButton = select<HTMLAnchorElement>('a[aria-label="Edit this file"]');
if (existingButton) {
if (isPermalink_) {
// GitHub has a broken link in this case #2997
existingButton.href = String(url);
}
return;
}
readmeHeader.after(
<a
href={String(url)}
className="Box-btn-octicon btn-octicon float-right"
aria-label="Edit this file"
>
<PencilIcon/>
</a>
);
}
void features.add(__filebasename, {
include: [
pageDetect.isRepoTree
],
awaitDomReady: false,
init
});
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