mirror of https://github.com/renovatebot/renovate
77 lines
2.6 KiB
TypeScript
77 lines
2.6 KiB
TypeScript
import type { Content } from 'mdast';
|
|
import remark from 'remark';
|
|
import type { Plugin, Transformer } from 'unified';
|
|
import { logger } from '../../../logger';
|
|
import { coerceNumber } from '../../../util/number';
|
|
import { regEx } from '../../../util/regex';
|
|
|
|
interface UrlMatch {
|
|
start: number;
|
|
end: number;
|
|
replaceTo: string;
|
|
}
|
|
|
|
//according to https://github.com/dead-claudia/github-limits
|
|
const urlRegex =
|
|
/(?:https?:)?(?:\/\/)?(?:www\.)?(?<!api\.)(?:to)?github\.com\/[-a-z0-9]+\/[-_a-z0-9.]+\/(?:discussions|issues|pull)\/[0-9]+(?:#[-_a-z0-9]+)?/i; // TODO #12872 (?<!re) after text not matching
|
|
|
|
function massageLink(input: string): string {
|
|
return input.replace(
|
|
regEx(/(?:to|redirect\.|www\.)?github\.com/i),
|
|
'redirect.github.com',
|
|
);
|
|
}
|
|
|
|
function collectLinkPosition(input: string, matches: UrlMatch[]): Plugin {
|
|
const transformer = (tree: Content): void => {
|
|
const startOffset = coerceNumber(tree.position?.start.offset);
|
|
const endOffset = coerceNumber(tree.position?.end.offset);
|
|
|
|
if (tree.type === 'link') {
|
|
const substr = input.slice(startOffset, endOffset);
|
|
const url: string = tree.url;
|
|
const offset: number = startOffset + substr.lastIndexOf(url);
|
|
if (urlRegex.test(url)) {
|
|
matches.push({
|
|
start: offset,
|
|
end: offset + url.length,
|
|
replaceTo: massageLink(url),
|
|
});
|
|
}
|
|
} else if (tree.type === 'text') {
|
|
const globalUrlReg = new RegExp(urlRegex, 'gi');
|
|
const urlMatches = [...tree.value.matchAll(globalUrlReg)];
|
|
for (const match of urlMatches) {
|
|
const [url] = match;
|
|
const start = startOffset + coerceNumber(match.index);
|
|
const end = start + url.length;
|
|
const newUrl = massageLink(url);
|
|
matches.push({ start, end, replaceTo: `[${url}](${newUrl})` });
|
|
}
|
|
} else if ('children' in tree) {
|
|
tree.children.forEach((child: Content) => {
|
|
transformer(child);
|
|
});
|
|
}
|
|
};
|
|
|
|
return () => transformer as Transformer;
|
|
}
|
|
|
|
export function massageMarkdownLinks(content: string): string {
|
|
try {
|
|
const rightSpaces = content.replace(content.trimEnd(), '');
|
|
const matches: UrlMatch[] = [];
|
|
remark().use(collectLinkPosition(content, matches)).processSync(content);
|
|
const result = matches.reduceRight((acc, { start, end, replaceTo }) => {
|
|
const leftPart = acc.slice(0, start);
|
|
const rightPart = acc.slice(end);
|
|
return leftPart + replaceTo + rightPart;
|
|
}, content);
|
|
return result.trimEnd() + rightSpaces;
|
|
} catch (err) /* istanbul ignore next */ {
|
|
logger.warn({ err }, `Unable to massage markdown text`);
|
|
return content;
|
|
}
|
|
}
|