Add support for prefix of any character

catalog-info.yaml

@@ -0,0 +1,14 @@
+apiVersion: backstage.io/v1alpha1
+kind: Component
+metadata:
+  name: go-version
+  description: |
+    A fork of tje go library `go-version` create by HashiCorp.
+    Original source code can be found here: https://github.com/hashicorp/go-version
+    The only reason we made a fork was because we had some other requirements in the regex being used in the original library.
+  annotations: 
+    github.com/project-slug: BESTSELLER/go-version
+spec:
+  type: library
+  lifecycle: production
+  owner: engineering-services

version.go

@@ -18,13 +18,13 @@ var (
 // The raw regular expression string used for testing the validity
 // of a version.
 const (
-	VersionRegexpRaw string = `v?([0-9]+(\.[0-9]+)*?)` +
+	VersionRegexpRaw string = `(?:\w+\-)*v?([0-9]+(\.[0-9]+)*?)` +
 		`(-([0-9]+[0-9A-Za-z\-~]*(\.[0-9A-Za-z\-~]+)*)|(-?([A-Za-z\-~]+[0-9A-Za-z\-~]*(\.[0-9A-Za-z\-~]+)*)))?` +
 		`(\+([0-9A-Za-z\-~]+(\.[0-9A-Za-z\-~]+)*))?` +
 		`?`
 
 	// SemverRegexpRaw requires a separator between version and prerelease
-	SemverRegexpRaw string = `v?([0-9]+(\.[0-9]+)*?)` +
+	SemverRegexpRaw string = `(?:\w+\-)*v?([0-9]+(\.[0-9]+)*?)` +
 		`(-([0-9]+[0-9A-Za-z\-~]*(\.[0-9A-Za-z\-~]+)*)|(-([A-Za-z\-~]+[0-9A-Za-z\-~]*(\.[0-9A-Za-z\-~]+)*)))?` +
 		`(\+([0-9A-Za-z\-~]+(\.[0-9A-Za-z\-~]+)*))?` +
 		`?`

version_test.go

@@ -36,6 +36,8 @@ func TestNewVersion(t *testing.T) {
 		{"1.7rc2", false},
 		{"v1.7rc2", false},
 		{"1.0-", false},
+		{"controller-v0.40.2", false},
+		{"azure-cli-v1.4.2", false},
 	}
 
 	for _, tc := range cases {
@@ -77,6 +79,8 @@ func TestNewSemver(t *testing.T) {
 		{"1.7rc2", true},
 		{"v1.7rc2", true},
 		{"1.0-", true},
+		{"controller-v0.40.2", false},
+		{"azure-cli-v1.4.2", false},
 	}
 
 	for _, tc := range cases {
@@ -144,6 +148,12 @@ func TestVersionCompare(t *testing.T) {
 		{"1.7rc2", "1.7rc1", 1},
 		{"1.7rc2", "1.7", -1},
 		{"1.2.0", "1.2.0-X-1.2.0+metadata~dist", 1},
+		{"controller-v0.40.2", "controller-v0.40.3", -1},
+		{"0.40.4", "controller-v0.40.2", 1},
+		{"0.40.4", "controller-v0.40.4", 0},
+		{"azure-cli-v1.4.2", "azure-cli-v1.4.2", 0},
+		{"azure-cli-v1.4.1", "azure-cli-v1.4.2", -1},
+		{"1.4.3", "azure-cli-v1.4.2", 1},
 	}
 
 	for _, tc := range cases {