fix(commit): can not generate commit message when updating submodule

Closes #303

Author: Blarc

CHANGELOG.md

@@ -5,6 +5,7 @@
 ### Fixed
 
 - Common branch is not detected when most files are unassociated with branches, despite at least one file belonging to a branch.
+- Cannot generate commit message when updating a submodule.
 
 ## [2.10.0] - 2025-04-08
 

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

@@ -1,16 +1,19 @@
 package com.github.blarc.ai.commits.intellij.plugin
 
 import com.github.blarc.ai.commits.intellij.plugin.AICommitsBundle.message
+import com.intellij.openapi.project.Project
 import com.intellij.openapi.ui.ValidationInfo
 import com.intellij.openapi.vcs.FilePath
 import com.intellij.openapi.vcs.changes.Change
 import com.intellij.ui.dsl.builder.Cell
 import com.intellij.ui.layout.ValidationInfoBuilder
 import com.intellij.util.ui.ColumnInfo
 import com.intellij.util.ui.ComponentWithEmptyText
+import git4idea.repo.GitRepository
+import git4idea.repo.GitRepositoryManager
 import javax.swing.JComponent
 
-fun <T, O> createColumn(name: String, formatter: (T) -> O) : ColumnInfo<T, O> {
+fun <T, O> createColumn(name: String, formatter: (T) -> O): ColumnInfo<T, O> {
     return object : ColumnInfo<T, O>(name) {
         override fun valueOf(item: T): O {
             return formatter(item)
@@ -19,10 +22,10 @@ fun <T, O> createColumn(name: String, formatter: (T) -> O) : ColumnInfo<T, O> {
 }
 
 fun ValidationInfoBuilder.notBlank(value: String): ValidationInfo? =
-        if (value.isBlank()) error(message("validation.required")) else null
+    if (value.isBlank()) error(message("validation.required")) else null
 
 
-fun ValidationInfoBuilder.temperatureValid(value: String): ValidationInfo?  {
+fun ValidationInfoBuilder.temperatureValid(value: String): ValidationInfo? {
     if (value.isNotBlank()) {
         value.toFloatOrNull().let {
             if (it != null && it in 0.0..2.0) {
@@ -34,10 +37,10 @@ fun ValidationInfoBuilder.temperatureValid(value: String): ValidationInfo?  {
 }
 
 fun ValidationInfoBuilder.unique(value: String, existingValues: Set<String>): ValidationInfo? =
-        if (existingValues.contains(value)) error(message("validation.unique")) else null
+    if (existingValues.contains(value)) error(message("validation.unique")) else null
 
 fun ValidationInfoBuilder.isInt(value: String): ValidationInfo? {
-    if (value.isBlank()){
+    if (value.isBlank()) {
         return null
     }
 
@@ -51,7 +54,7 @@ fun ValidationInfoBuilder.isInt(value: String): ValidationInfo? {
 }
 
 fun ValidationInfoBuilder.isFloat(value: String): ValidationInfo? {
-    if (value.isBlank()){
+    if (value.isBlank()) {
         return null
     }
 
@@ -65,7 +68,7 @@ fun ValidationInfoBuilder.isFloat(value: String): ValidationInfo? {
 }
 
 fun ValidationInfoBuilder.isDouble(value: String): ValidationInfo? {
-    if (value.isBlank()){
+    if (value.isBlank()) {
         return null
     }
 
@@ -79,7 +82,7 @@ fun ValidationInfoBuilder.isDouble(value: String): ValidationInfo? {
 }
 
 // Adds emptyText method to all cells that contain a component that implements ComponentWithEmptyText class
-fun <T>Cell<T>.emptyText(emptyText: String) : Cell<T> where T : JComponent, T : ComponentWithEmptyText {
+fun <T> Cell<T>.emptyText(emptyText: String): Cell<T> where T : JComponent, T : ComponentWithEmptyText {
     this.component.emptyText.text = emptyText
     return this
 }
@@ -105,3 +108,19 @@ fun String.wrap(length: Int): String {
 fun Change.filePath(): FilePath? {
     return afterRevision?.file ?: beforeRevision?.file
 }
+
+fun Change.isSubmoduleChange(project: Project): Boolean {
+    val repositoryManager = GitRepositoryManager.getInstance(project)
+
+    val virtualFile = this.virtualFile ?: return false
+    val fileRepositoryUrl = repositoryManager.getRepositoryForFileQuick(virtualFile)
+        ?.remotes
+        ?.firstOrNull()
+        ?.firstUrl ?: return false
+
+    return repositoryManager.repositories
+        .flatMap(GitRepository::getSubmodules)
+        .map { it.url }
+        .any { it == fileRepositoryUrl }
+}
+

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

@@ -122,6 +122,7 @@ object AICommitsUtils {
                     ) to change
                 }
             }
+            .filter { !it.second.isSubmoduleChange(project) }
             .groupBy({ it.first }, { it.second })