fix(updater): compare the recorded version to the tag without the prefix

2026-09-29 10:56:29 +02:00
parent f8ed33df83
commit d2b6f0099b
2 changed files with 51 additions and 0 deletions
@@ -122,8 +122,19 @@ func fetchBounded(url string, limit int64) ([]byte, error) {
 	return body, nil
 }

+// trimVersionPrefix removes the "v" the toolchain records with, so a
+// recorded version ("v1.2.3", or a pseudo-version "v0.0.0-…") compares
+// against release tags, which CheckLatest already reports without it.
+func trimVersionPrefix(v string) string {
+	return strings.TrimPrefix(v, "v")
+}
+
 // CompareVersions compares two dotted versions numerically per part.
+// Either side may carry the leading "v" of a recorded version or of a
+// tag; the shapes compare equal, which is what keeps an installation
+// running v1.0.0 from being offered an update to 1.0.0.
 func CompareVersions(a, b string) int {
+	a, b = trimVersionPrefix(a), trimVersionPrefix(b)
 	as, bs := strings.Split(a, "."), strings.Split(b, ".")
 	for i := 0; i < len(as) || i < len(bs); i++ {
 		av, bv := part(as, i), part(bs, i)