From f5595f334c00f156d4c9f364e6470ceba09a953b Mon Sep 17 00:00:00 2001
From: Rhys Arkins <rhys@arkins.net>
Date: Sat, 8 Apr 2023 10:38:43 +0200
Subject: [PATCH] feat: RENOVATE_X_IGNORE_RE2 (#21391)
---
docs/usage/self-hosted-experimental.md | 4 ++++
lib/util/regex.ts | 20 +++++++++++---------
2 files changed, 15 insertions(+), 9 deletions(-)
diff --git a/docs/usage/self-hosted-experimental.md b/docs/usage/self-hosted-experimental.md
index 5637573510..5945938bef 100644
--- a/docs/usage/self-hosted-experimental.md
+++ b/docs/usage/self-hosted-experimental.md
@@ -44,6 +44,10 @@ See [issue 8660](https://github.com/renovatebot/renovate/issues/8660) for backgr
Suppress the default warning when a deprecated version of Node.js is used to run Renovate.
+## `RENOVATE_X_IGNORE_RE2`
+
+Skip initializing `RE2` for regular expressions and instead use Node-native `RegExp` instead.
+
## `RENOVATE_X_PLATFORM_VERSION`
If set, Renovate will use this string as GitLab server version instead of checking via the GitLab API.
diff --git a/lib/util/regex.ts b/lib/util/regex.ts
index fd227ec2da..8396102e42 100644
--- a/lib/util/regex.ts
+++ b/lib/util/regex.ts
@@ -8,16 +8,18 @@ let RegEx: RegExpConstructor;
const cache = new Map<string, RegExp>();
-try {
- const RE2 = re2();
- // Test if native is working
- new RE2('.*').exec('test');
- logger.debug('Using RE2 as regex engine');
- RegEx = RE2;
-} catch (err) {
- logger.warn({ err }, 'RE2 not usable, falling back to RegExp');
- RegEx = RegExp;
+if (!process.env.RENOVATE_X_IGNORE_RE2) {
+ try {
+ const RE2 = re2();
+ // Test if native is working
+ new RE2('.*').exec('test');
+ logger.debug('Using RE2 as regex engine');
+ RegEx = RE2;
+ } catch (err) {
+ logger.warn({ err }, 'RE2 not usable, falling back to RegExp');
+ }
}
+RegEx ??= RegExp;
export function regEx(
pattern: string | RegExp,
--
GitLab