add debugAdapterExecutable property to launch configuration

Author: matthewbastien

lldb/tools/lldb-dap/package.json

@@ -86,7 +86,7 @@
           "default": {},
           "description": "The environment of the lldb-dap process.",
           "additionalProperties": {
-             "type": "string"
+            "type": "string"
           }
         }
       }
@@ -152,6 +152,10 @@
               "program"
             ],
             "properties": {
+              "debugAdapterExecutable": {
+                "type": "string",
+                "markdownDescription": "The LLDB debug adapter executable to use. Either an absolute path or the name of a debug adapter executable available on the `PATH`."
+              },
               "program": {
                 "type": "string",
                 "description": "Path to the program to debug."
@@ -338,6 +342,10 @@
           },
           "attach": {
             "properties": {
+              "debugAdapterExecutable": {
+                "type": "string",
+                "markdownDescription": "The LLDB debug adapter executable to use. Either an absolute path or the name of a debug adapter executable available on the `PATH`."
+              },
               "program": {
                 "type": "string",
                 "description": "Path to the program to attach to."

lldb/tools/lldb-dap/src-ts/debug-adapter-factory.ts

@@ -67,12 +67,17 @@ async function findDAPExecutable(): Promise<string | undefined> {
 async function getDAPExecutable(
   session: vscode.DebugSession,
 ): Promise<string | undefined> {
+  // Check if the executable was provided in the launch configuration.
+  const launchConfigPath = session.configuration["debugAdapterExecutable"];
+  if (typeof launchConfigPath === "string" && launchConfigPath.length !== 0) {
+    return launchConfigPath;
+  }
+
+  // Check if the executable was provided in the extension's configuration.
   const config = vscode.workspace.getConfiguration(
     "lldb-dap",
     session.workspaceFolder,
   );
-
-  // Prefer the explicitly specified path in the extension's configuration.
   const configPath = config.get<string>("executable-path");
   if (configPath && configPath.length !== 0) {
     return configPath;