fix: make SVN dependency optional

Author: Blarc

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ## [Unreleased]
 
+### Fixed
+
+- Make SVN dependency optional.
+
 ## [2.11.0] - 2025-04-24
 
 ### Added

src/main/kotlin/com/github/blarc/ai/commits/intellij/plugin/AICommitsUtils.kt

@@ -100,17 +100,19 @@ object AICommitsUtils {
             changes.mapNotNull {
                 it.virtualFile?.let { virtualFile ->
                     VcsUtil.getVcsFor(project, virtualFile)?.let { vcs ->
-                        when (vcs) {
-                            is SvnVcs -> {
+                        when {
+                            isSvnAvailable() && vcs is SvnVcs -> {
                                 SvnUtil.getUrl(vcs, VfsUtilCore.virtualToIoFile(virtualFile))?.let { url ->
                                     extractSvnBranchName(url.toDecodedString())
                                 }
                             }
-                            is GitVcs -> {
+
+                            vcs is GitVcs -> {
                                 GitRepositoryManager.getInstance(project)
                                     .getRepositoryForFile(it.virtualFile)
                                     ?.currentBranchName
                             }
+
                             else -> {
                                 null
                             }
@@ -203,4 +205,17 @@ object AICommitsUtils {
     fun getIDELocale(): Locale {
         return DynamicBundle.getLocale()
     }
+
+    private fun isClassAvailable(className: String): Boolean {
+        return try {
+            Class.forName(className)
+            true
+        } catch (e: ClassNotFoundException) {
+            false
+        }
+    }
+
+    private fun isSvnAvailable(): Boolean {
+        return isClassAvailable("org.jetbrains.idea.svn.SvnVcs") && isClassAvailable("org.jetbrains.idea.svn.SvnUtil")
+    }
 }

src/main/resources/META-INF/plugin.xml

@@ -68,7 +68,7 @@
          Read more: https://plugins.jetbrains.com/docs/intellij/plugin-compatibility.html -->
     <depends>com.intellij.modules.platform</depends>
     <depends>Git4Idea</depends>
-    <depends>Subversion</depends>
+    <depends optional="true" config-file="subversion.xml">Subversion</depends>
 
     <applicationListeners>
 

src/main/resources/META-INF/subversion.xml

@@ -0,0 +1,3 @@
+<idea-plugin>
+    <!-- This file contains Subversion-specific extensions that will be loaded only when Subversion plugin is available -->
+</idea-plugin>