From 3cd14bb3d63f30dbc6b8fb0c4650f81aa694f12a Mon Sep 17 00:00:00 2001
From: core23 <mail@core23.de>
Date: Wed, 5 Jun 2024 18:08:53 +0200
Subject: [PATCH] Add support for versioned branches

---
 src/Version/Persister/TagPersister.php | 22 +++++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

diff --git a/src/Version/Persister/TagPersister.php b/src/Version/Persister/TagPersister.php
index 57bd00c..f13ea73 100644
--- a/src/Version/Persister/TagPersister.php
+++ b/src/Version/Persister/TagPersister.php
@@ -22,10 +22,13 @@ final class TagPersister implements Persister
 
     private readonly string $tagPrefix;
 
-    public function __construct(?string $tagPattern = null, ?string $tagPrefix = null)
+    private readonly bool $versionedBranch;
+
+    public function __construct(?string $tagPattern = null, ?string $tagPrefix = null, bool $versionedBranch = true)
     {
-        $this->tagPrefix    = $tagPrefix ?? '';
-        $this->versionRegex = $tagPattern;
+        $this->tagPrefix       = $tagPrefix ?? '';
+        $this->versionRegex    = $tagPattern;
+        $this->versionedBranch = $versionedBranch;
     }
 
     public function getCurrentVersion(Context $context): string
@@ -51,6 +54,19 @@ public function getCurrentVersion(Context $context): string
 
         usort($versions, [$context->versionGenerator, 'compareVersions']);
 
+        if ($this->versionedBranch) {
+            $currentBranch = $context->getVersionControl()->getCurrentBranch();
+            $branchPrefix  = preg_replace('/^(\d+(?:\.\d)?(?:\.\d)?\.?).*/', '$1', $currentBranch);
+
+            $branchVersions = array_filter($versions, static function ($version) use ($branchPrefix) {
+                return str_starts_with($version, $branchPrefix);
+            });
+
+            if ([] !== $branchVersions) {
+                $versions = $branchVersions;
+            }
+        }
+
         return array_pop($versions);
     }