From 9596eff009640e487f85c9210ae4c002cd69d097 Mon Sep 17 00:00:00 2001
From: TMHBOFH <itsystem.bofh@gmail.com>
Date: Tue, 8 Jul 2025 16:28:50 +0200
Subject: [PATCH] feat: add regex filter for replication

Signed-off-by: TMHBOFH <itsystem.bofh@gmail.com>
---
 src/pkg/reg/util/pattern.go      |  9 ++++
 src/pkg/reg/util/pattern_test.go | 73 ++++++++++++++++++++++++++++++--
 2 files changed, 79 insertions(+), 3 deletions(-)

diff --git a/src/pkg/reg/util/pattern.go b/src/pkg/reg/util/pattern.go
index 63c11ce58f7..1a19c064cf6 100644
--- a/src/pkg/reg/util/pattern.go
+++ b/src/pkg/reg/util/pattern.go
@@ -16,6 +16,7 @@ package util
 
 import (
 	"fmt"
+	"regexp"
 	"strings"
 
 	"github.com/bmatcuk/doublestar"
@@ -26,6 +27,14 @@ func Match(pattern, str string) (bool, error) {
 	if len(pattern) == 0 {
 		return true, nil
 	}
+	if strings.HasPrefix(pattern, "regex:") {
+		regexPattern := strings.TrimPrefix(pattern, "regex:")
+		reg, err := regexp.Compile(regexPattern)
+		if err != nil {
+			return false, fmt.Errorf("invalid regex pattern: %w", err)
+		}
+		return reg.MatchString(str), nil
+	}
 	return doublestar.Match(pattern, str)
 }
 
diff --git a/src/pkg/reg/util/pattern_test.go b/src/pkg/reg/util/pattern_test.go
index fcc95df6337..7ca62676b39 100644
--- a/src/pkg/reg/util/pattern_test.go
+++ b/src/pkg/reg/util/pattern_test.go
@@ -83,11 +83,63 @@ func TestMatch(t *testing.T) {
 			str:     "v2.7.0",
 			match:   true,
 		},
+		// New regex-based tests
+		{
+			pattern: "regex:^v1\\.[0-9]+$",
+			str:     "v1.0",
+			match:   true,
+		},
+		{
+			pattern: "regex:^v1\\.[0-9]+$",
+			str:     "v1.10",
+			match:   true,
+		},
+		{
+			pattern: "regex:^v1\\.[0-9]+$",
+			str:     "v2.0",
+			match:   false,
+		},
+		{
+			pattern: "regex:^feature/.+$",
+			str:     "feature/abc",
+			match:   true,
+		},
+		{
+			pattern: "regex:^feature/.+$",
+			str:     "bugfix/abc",
+			match:   false,
+		},
+		{
+			pattern: "regex:^(v|release)-\\d+\\.\\d+(\\.\\d+)?$",
+			str:     "v-1.2.3",
+			match:   true,
+		},
+		{
+			pattern: "regex:^(v|release)-\\d+\\.\\d+(\\.\\d+)?$",
+			str:     "release-2.0",
+			match:   true,
+		},
+		{
+			pattern: "regex:^(v|release)-\\d+\\.\\d+(\\.\\d+)?$",
+			str:     "v-2",
+			match:   false,
+		},
+		{
+			pattern: "regex:^hotfix-(issue|bug)-[0-9]{4,}$",
+			str:     "hotfix-bug-1234",
+			match:   true,
+		},
+		{
+			pattern: "regex:^hotfix-(issue|bug)-[0-9]{4,}$",
+			str:     "hotfix-feature-1234",
+			match:   false,
+		},
 	}
-	for _, c := range cases {
+	for i, c := range cases {
+		fmt.Printf("running case %d ...\n", i)
 		match, err := Match(c.pattern, c.str)
-		require.Nil(t, err)
-		assert.Equal(t, c.match, match)
+		require.Nil(t, err, "unexpected error for pattern: %s", c.pattern)
+		assert.Equal(t, c.match, match, "pattern: %s, str: %s", c.pattern, c.str)
 	}
 }
 
@@ -144,6 +196,21 @@ func TestIsSpecificPathComponent(t *testing.T) {
 	}
 }
 
+func TestMatch_InvalidRegex(t *testing.T) {
+	invalidPatterns := []string{
+		"regex:^v[0-9+$",     // missing closing bracket
+		"regex:(abc",         // unclosed group
+		"regex:*abc",         // invalid quantifier at start
+		"regex:[a-z",         // incomplete character class
+	}
+
+	for i, pattern := range invalidPatterns {
+		fmt.Printf("[TestMatch_InvalidRegex case %d] pattern=%q\n", i, pattern)
+		_, err := Match(pattern, "test-tag")
+		assert.Error(t, err, "expected error for invalid pattern: %s", pattern)
+	}
+}
+
 func TestIsSpecificPath(t *testing.T) {
 	cases := []struct {
 		path        string