From afb2a3dbb0e255d90278f2653004996e6a1edc0f Mon Sep 17 00:00:00 2001
From: Rhys Arkins <rhys@arkins.net>
Date: Sat, 28 Oct 2023 15:57:51 +0200
Subject: [PATCH] fix(gomod): support updating semver go directive (#25479)

---
 lib/modules/versioning/go-mod-directive/index.spec.ts | 6 ++++--
 lib/modules/versioning/go-mod-directive/index.ts      | 8 +++++++-
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/lib/modules/versioning/go-mod-directive/index.spec.ts b/lib/modules/versioning/go-mod-directive/index.spec.ts
index b19faa97e831d6..21a71df7007ea5 100644
--- a/lib/modules/versioning/go-mod-directive/index.spec.ts
+++ b/lib/modules/versioning/go-mod-directive/index.spec.ts
@@ -29,7 +29,7 @@ describe('modules/versioning/go-mod-directive/index', () => {
     version    | expected
     ${'1'}     | ${false}
     ${'1.2'}   | ${true}
-    ${'1.2.3'} | ${false}
+    ${'1.2.3'} | ${true}
   `('isValid("$version") === $expected', ({ version, expected }) => {
     expect(!!semver.isValid(version)).toBe(expected);
   });
@@ -70,8 +70,10 @@ describe('modules/versioning/go-mod-directive/index', () => {
     ${'1.16'}    | ${'bump'}     | ${'1.16.4'}    | ${'1.17.0'} | ${'1.17'}
     ${'1.16'}    | ${'bump'}     | ${'1.16.4'}    | ${'1.16.4'} | ${'1.16'}
     ${'1.16'}    | ${'replace'}  | ${'1.16.4'}    | ${'1.16.4'} | ${'1.16'}
-    ${'1.16'}    | ${'replace'}  | ${'1.16.4'}    | ${'2.0.0'}  | ${'2.0'}
+    ${'1.16'}    | ${'replace'}  | ${'1.21.2'}    | ${'1.21.2'} | ${'1.21.2'}
     ${'1.16'}    | ${'widen'}    | ${'1.16.4'}    | ${'1.16.4'} | ${'1.16'}
+    ${'1.16'}    | ${'bump'}     | ${'1.16.4'}    | ${'1.21.3'} | ${'1.21.3'}
+    ${'1.21.2'}  | ${'bump'}     | ${'1.21.2'}    | ${'1.21.3'} | ${'1.21.3'}
   `(
     'getNewValue("$currentValue", "$rangeStrategy", "$currentVersion", "$newVersion") === "$expected"',
     ({ currentValue, rangeStrategy, currentVersion, newVersion, expected }) => {
diff --git a/lib/modules/versioning/go-mod-directive/index.ts b/lib/modules/versioning/go-mod-directive/index.ts
index d62b842e430b16..eaa7dbadb63e50 100644
--- a/lib/modules/versioning/go-mod-directive/index.ts
+++ b/lib/modules/versioning/go-mod-directive/index.ts
@@ -9,7 +9,7 @@ export const urls = ['https://go.dev/ref/mod'];
 export const supportsRanges = true;
 export const supportedRangeStrategies: RangeStrategy[] = ['bump', 'replace'];
 
-const validRegex = regEx(/^\d+\.\d+$/);
+const validRegex = regEx(/^\d+\.\d+(\.\d+)?$/);
 
 function toNpmRange(range: string): string {
   return `^${range}`;
@@ -25,9 +25,15 @@ function getNewValue({
   newVersion,
 }: NewValueConfig): string {
   if (rangeStrategy === 'bump') {
+    if (npm.matches(newVersion, '>=1.20.0')) {
+      return newVersion;
+    }
     return shorten(newVersion);
   }
   if (rangeStrategy === 'replace' && !matches(currentValue, newVersion)) {
+    if (npm.matches(newVersion, '>=1.20.0')) {
+      return newVersion;
+    }
     return shorten(newVersion);
   }
   return currentValue;