Files
renovate/lib/modules/platform/github/massage-markdown-links.spec.ts
Sebastian Poxhofer a1971afa78 fix(linters): add linting rule to enforce usage of our regEx utility (#44690)
* ci(linter): add renovate/require-regex-util rule

Adds a custom oxlint rule that flags raw RegExp usage in lib/
production code: any `new RegExp(...)` call and any regex literal
that is not the direct first argument of `regEx(...)`. The regEx()
helper from lib/util/regex.ts uses the RE2 engine for ReDoS-safe
matching and caches compiled patterns. lib/util/regex.ts itself is
exempt.

The rule is disabled for **/*.spec.ts, test/**, and tools/** via
config overrides, because vitest APIs such as expect.stringMatching
need bare RegExp instances (a past commit reverted regEx() there).

Severity is set to "warn" instead of "error": the repo currently has
197 pre-existing violations (above the agreed mechanical-fix
threshold of 80), and a number of them are deliberately
RE2-incompatible patterns (lookahead/lookbehind/named backreferences,
see TODO #12872/#12875 markers in e.g. lib/modules/versioning/rez/
pattern.ts and lib/modules/manager/dockerfile/extract.ts) that need
per-site judgment before they can be wrapped in regEx() or suppressed
with a justified disable comment. No violation fixes are included in
this commit.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* ci(linter): enforce renovate/require-regex-util at error

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* refactor: use regEx() for regex literals and RegExp construction in lib

Burn down all renovate/require-regex-util violations (197):

- wrap RE2-compatible regex literals and RegExp constructions in regEx()
- rewrite lookaround patterns where behavior is provably preserved:
  goproxy separator split, sbt-package link extraction, leiningen
  comment stripping and keyword search, npm GitHub owner validation
  (unit-count bound replaced by an explicit length check)
- keep native RegExp with disable comments where RE2 cannot be used:
  moo / good-enough-parser lexer patterns (moo rejects RE2 instances),
  MigrationsService propertyName (matched via isRegExp, which RE2
  instances fail), rez named backreferences and lookaheads, GitHub
  markdown link negative lookbehind, emoji astral-plane matching
- drop stale TODO #12875 comments for patterns current re2 handles

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* refactor: reduce require-regex-util disable comments

Rewrite the github massage-markdown-links URL regex to capture an
optional `api.` prefix in a named group (skipped in code) instead of
relying on a negative lookbehind, so both the base and global variants
can use regEx()/RE2 and their two disable comments are removed. Add
spec cases for api-prefixed URLs that match the URL shape.

Consolidate the four related line disables in rez/pattern.ts (bound and
range patterns emulating Python conditional patterns via named
backreferences and lookaheads, which RE2 cannot express) into a single
block disable/enable pair, matching the treatment of the lexer files.

Disable comment count drops from 13 to 8.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* refactor(datasource/sbt-package): use named capture group in link regex

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* refactor(manager/cake): restore original multiLineComment regex spelling

The [^] -> [\\s\\S] rewrite was only needed for an RE2 wrap that was
later reverted; keep the diff minimal.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* fix(datasource/go): skip empty GOPROXY segments

The switch from a lookahead split to a capture-group split (needed because
RE2 has no lookahead support) changed how empty GOPROXY segments parse:
`a|,b` yielded `{ url: ',', fallback: '|' }` before and
`{ url: '', fallback: ',' }` after. The comma fallback only continues on
404/410, so a failing proxy ahead of an empty segment silently stopped the
lookup instead of falling through to the remaining proxies.

Empty segments carry no url to query, so drop them.

* refactor(datasource/go): use isTruthy for empty segment filter

* fix(datasource/go): filter empty segments before mapping

Filtering after the map broke the contextual typing from the
GoproxyItem[] annotation, widening fallback to string.

* refactor(platform/github): use regEx() for merge queue query stripping

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-08-14 14:30:46 +00:00

95 lines
6.9 KiB
TypeScript

import { massageMarkdownLinks } from './massage-markdown-links.ts';
describe('modules/platform/github/massage-markdown-links', () => {
it('performs multiple replacements', () => {
const input = [
'Link [foo/bar#1](https://github.com/foo/bar/pull/1) points to https://github.com/foo/bar/pull/1.',
'URL https://github.com/foo/bar/pull/1 becomes [foo/bar#1](https://github.com/foo/bar/pull/1).',
].join('\n');
const res = massageMarkdownLinks(input);
expect(res).toEqual(
[
'Link [foo/bar#1](https://redirect.github.com/foo/bar/pull/1) points to [https://github.com/foo/bar/pull/1](https://redirect.github.com/foo/bar/pull/1).',
'URL [https://github.com/foo/bar/pull/1](https://redirect.github.com/foo/bar/pull/1) becomes [foo/bar#1](https://redirect.github.com/foo/bar/pull/1).',
].join('\n'),
);
});
it.each`
input
${'github.com'}
${'github.com/foo/bar'}
${'github.com/foo/bar/'}
${'github.com/foo/bar/discussions'}
${'github.com/foo/bar/issues'}
${'github.com/foo/bar/pull'}
${'github.com/foo/bar/discussions/'}
${'github.com/foo/bar/issues/'}
${'github.com/foo/bar/pull/'}
${'www.github.com'}
${'www.github.com/foo/bar'}
${'www.github.com/foo/bar/'}
${'www.github.com/foo/bar/discussions'}
${'www.github.com/foo/bar/issues'}
${'www.github.com/foo/bar/pull'}
${'www.github.com/foo/bar/discussions/'}
${'www.github.com/foo/bar/issues/'}
${'www.github.com/foo/bar/pull/'}
${'https://github.com'}
${'https://github.com/foo/bar'}
${'https://github.com/foo/bar/'}
${'https://github.com/foo/bar/discussions'}
${'https://github.com/foo/bar/issues'}
${'https://github.com/foo/bar/pull'}
${'https://github.com/foo/bar/discussions/'}
${'https://github.com/foo/bar/issues/'}
${'https://github.com/foo/bar/pull/'}
${'api.github.com'}
${'api.github.com/foo/bar/issues/1'}
${'https://api.github.com/foo/bar/issues/1'}
${'redirect.github.com'}
${'www.redirect.github.com'}
${'https://redirect.github.com/foo/bar/releases/tag/v0.20.3'}
${'https://redirect.github.com/foo/bar/compare/v0.20.2...v0.20.3'}
`('Unchanged: $input', ({ input }: { input: string }) => {
const inputText = `Foo ${input}, bar.`;
expect(massageMarkdownLinks(inputText)).toEqual(inputText);
const inputLink = `[foobar](${input})`;
expect(massageMarkdownLinks(inputLink)).toEqual(inputLink);
});
it.each`
input | output
${'github.com/foo/bar/discussions/1'} | ${'[github.com/foo/bar/discussions/1](redirect.github.com/foo/bar/discussions/1)'}
${'github.com/foo/bar/issues/1'} | ${'[github.com/foo/bar/issues/1](redirect.github.com/foo/bar/issues/1)'}
${'github.com/foo/bar/pull/1'} | ${'[github.com/foo/bar/pull/1](redirect.github.com/foo/bar/pull/1)'}
${'github.com/Foo/bar/pull/1'} | ${'[github.com/Foo/bar/pull/1](redirect.github.com/Foo/bar/pull/1)'}
${'www.github.com/foo/bar.foo/pull/1'} | ${'[www.github.com/foo/bar.foo/pull/1](redirect.github.com/foo/bar.foo/pull/1)'}
${'www.github.com/foo/bar/discussions/1'} | ${'[www.github.com/foo/bar/discussions/1](redirect.github.com/foo/bar/discussions/1)'}
${'www.github.com/foo/bar/issues/1'} | ${'[www.github.com/foo/bar/issues/1](redirect.github.com/foo/bar/issues/1)'}
${'www.github.com/foo/bar/pull/1'} | ${'[www.github.com/foo/bar/pull/1](redirect.github.com/foo/bar/pull/1)'}
${'https://github.com/foo/bar/discussions/1'} | ${'[https://github.com/foo/bar/discussions/1](https://redirect.github.com/foo/bar/discussions/1)'}
${'https://github.com/foo/bar/issues/1'} | ${'[https://github.com/foo/bar/issues/1](https://redirect.github.com/foo/bar/issues/1)'}
${'https://github.com/foo/bar/pull/1'} | ${'[https://github.com/foo/bar/pull/1](https://redirect.github.com/foo/bar/pull/1)'}
${'https://github.com/foo/bar/discussions/1#comment-123'} | ${'[https://github.com/foo/bar/discussions/1#comment-123](https://redirect.github.com/foo/bar/discussions/1#comment-123)'}
${'https://github.com/foo/bar/issues/1#comment-123'} | ${'[https://github.com/foo/bar/issues/1#comment-123](https://redirect.github.com/foo/bar/issues/1#comment-123)'}
${'https://github.com/foo/bar/pull/1#comment-123'} | ${'[https://github.com/foo/bar/pull/1#comment-123](https://redirect.github.com/foo/bar/pull/1#comment-123)'}
${'[github.com/foo/bar/discussions/1](github.com/foo/bar/discussions/1)'} | ${'[github.com/foo/bar/discussions/1](redirect.github.com/foo/bar/discussions/1)'}
${'[github.com/foo/bar/issues/1](github.com/foo/bar/issues/1)'} | ${'[github.com/foo/bar/issues/1](redirect.github.com/foo/bar/issues/1)'}
${'[github.com/foo/bar/pull/1](github.com/foo/bar/pull/1)'} | ${'[github.com/foo/bar/pull/1](redirect.github.com/foo/bar/pull/1)'}
${'[www.github.com/foo/bar/discussions/1](www.github.com/foo/bar/discussions/1)'} | ${'[www.github.com/foo/bar/discussions/1](redirect.github.com/foo/bar/discussions/1)'}
${'[www.github.com/foo/bar/issues/1](www.github.com/foo/bar/issues/1)'} | ${'[www.github.com/foo/bar/issues/1](redirect.github.com/foo/bar/issues/1)'}
${'[www.github.com/foo/bar.foo/pull/1](www.github.com/foo/bar.foo/pull/1)'} | ${'[www.github.com/foo/bar.foo/pull/1](redirect.github.com/foo/bar.foo/pull/1)'}
${'[www.github.com/foo/bar/pull/1](www.github.com/foo/bar/pull/1)'} | ${'[www.github.com/foo/bar/pull/1](redirect.github.com/foo/bar/pull/1)'}
${'[https://github.com/foo/bar/discussions/1](https://github.com/foo/bar/discussions/1)'} | ${'[https://github.com/foo/bar/discussions/1](https://redirect.github.com/foo/bar/discussions/1)'}
${'[https://github.com/foo/bar/issues/1](https://github.com/foo/bar/issues/1)'} | ${'[https://github.com/foo/bar/issues/1](https://redirect.github.com/foo/bar/issues/1)'}
${'[https://github.com/foo/bar/pull/1](https://github.com/foo/bar/pull/1)'} | ${'[https://github.com/foo/bar/pull/1](https://redirect.github.com/foo/bar/pull/1)'}
`(
'$input -> $output',
({ input, output }: { input: string; output: string }) => {
expect(massageMarkdownLinks(input)).toEqual(output);
},
);
});