Add config option for enabling/disabling indexing

Author: fwcd

server/src/main/kotlin/org/javacs/kt/Configuration.kt

@@ -23,6 +23,11 @@ public data class CompilerConfiguration(
     val jvm: JVMConfiguration = JVMConfiguration()
 )
 
+public data class IndexingConfiguration(
+    /** Whether an index of global symbols should be built in the background. */
+    var enabled: Boolean = true
+)
+
 public data class ExternalSourcesConfiguration(
     /** Whether kls-URIs should be sent to the client to describe classes in JARs. */
     var useKlsScheme: Boolean = false,
@@ -34,5 +39,6 @@ public data class Configuration(
     val compiler: CompilerConfiguration = CompilerConfiguration(),
     val completion: CompletionConfiguration = CompletionConfiguration(),
     val linting: LintingConfiguration = LintingConfiguration(),
+    var indexing: IndexingConfiguration = IndexingConfiguration(),
     val externalSources: ExternalSourcesConfiguration = ExternalSourcesConfiguration()
 )

server/src/main/kotlin/org/javacs/kt/KotlinWorkspaceService.kt

@@ -123,6 +123,15 @@ class KotlinWorkspaceService(
                 }
             }
 
+            // Update indexing options
+            get("indexing")?.asJsonObject?.apply {
+                val indexing = config.indexing
+                get("enabled")?.asBoolean?.let {
+                    indexing.enabled = it
+                    sp.indexEnabled = it
+                }
+            }
+
             // Update options about external sources e.g. JAR files, decompilers, etc
             get("externalSources")?.asJsonObject?.apply {
                 val externalSources = config.externalSources

server/src/main/kotlin/org/javacs/kt/SourcePath.kt

@@ -31,6 +31,7 @@ class SourcePath(
     private val indexAsync = AsyncExecutor()
 
     val index = SymbolIndex()
+    var indexEnabled = true
     var beforeCompileCallback: () -> Unit = {}
 
     private inner class SourceFile(
@@ -201,7 +202,7 @@ class SourcePath(
             }
 
             // Only index normal files, not build files
-            if (kind == CompilationKind.DEFAULT) {
+            if (indexEnabled && kind == CompilationKind.DEFAULT) {
                 updateIndexAsync(container)
             }
 
@@ -222,8 +223,8 @@ class SourcePath(
      * Updates the symbol index asynchronously.
      */
     private fun updateIndexAsync(container: ComponentProvider) = indexAsync.execute {
-        // val module = container.getService(ModuleDescriptor::class.java)
-        // index.update(module)
+        val module = container.getService(ModuleDescriptor::class.java)
+        index.update(module)
     }
 
     /**