From 12bb4e9400c7b6ac319fb976d981620458575b73 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Thu, 7 May 2026 14:26:50 +0100
Subject: [PATCH] add support for generate --config

---
 .../build/buf/gradle/GenerateConfiguration.kt |  2 ++
 .../kotlin/build/buf/gradle/GenerateTask.kt   | 22 ++++++++++++++++++-
 2 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/src/main/kotlin/build/buf/gradle/GenerateConfiguration.kt b/src/main/kotlin/build/buf/gradle/GenerateConfiguration.kt
index 946d794d..73d9d98a 100644
--- a/src/main/kotlin/build/buf/gradle/GenerateConfiguration.kt
+++ b/src/main/kotlin/build/buf/gradle/GenerateConfiguration.kt
@@ -32,6 +32,8 @@ internal fun Project.configureGenerate() {
         templateFile.set(generateOptions?.let { resolveTemplateFile(it) })
         inputFiles.setFrom(obtainDefaultProtoFileSet())
         outputDirectory.set(File(project.bufbuildDir, GENERATED_DIR))
+        bufConfigFile.set(project.bufConfigFile())
+        v1SyntaxOnly.set(bufV1SyntaxOnly())
     }
 }
 
diff --git a/src/main/kotlin/build/buf/gradle/GenerateTask.kt b/src/main/kotlin/build/buf/gradle/GenerateTask.kt
index 5065d935..adb6f3e1 100644
--- a/src/main/kotlin/build/buf/gradle/GenerateTask.kt
+++ b/src/main/kotlin/build/buf/gradle/GenerateTask.kt
@@ -48,6 +48,15 @@ abstract class GenerateTask : AbstractBufExecTask() {
     @get:OutputDirectory
     internal abstract val outputDirectory: Property<File>
 
+    /** The input buf configuration file. */
+    @get:InputFiles
+    @get:Optional
+    @get:PathSensitive(PathSensitivity.RELATIVE)
+    internal abstract val bufConfigFile: Property<File>
+
+    @get:Input
+    internal abstract val v1SyntaxOnly: Property<Boolean>
+
     @TaskAction
     fun bufGenerate() {
         val args = listOf("generate", "--output", outputDirectory.get())
@@ -67,6 +76,17 @@ abstract class GenerateTask : AbstractBufExecTask() {
                 listOf("--template", it.absolutePath)
             } ?: emptyList()
 
-        return importOptions + templateFileOption
+        val configOption =
+            if (noWorkspaceAndV1Syntax() || noWorkspaceAndNoProtobufGradlePlugin()) {
+                bufConfigFile.orNull?.let { listOf("--config", it.absolutePath) }
+            } else {
+                null
+            }.orEmpty()
+
+        return importOptions + templateFileOption + configOption
     }
+
+    private fun noWorkspaceAndV1Syntax() = !hasWorkspace.get() && v1SyntaxOnly.get()
+
+    private fun noWorkspaceAndNoProtobufGradlePlugin() = !hasWorkspace.get() && !hasProtobufGradlePlugin.get()
 }