feat: integrate clangd

This will integrate clangd for better autocompletion and syntax highlighting. Assumption is made that the project build is under /workspace/build with  a compile-commands.json living inside.

Signed-off-by: Andreas Kurz <[email protected]>

.devcontainer/.clangd

@@ -0,0 +1,2 @@
+CompileFlags:
+    Remove: [-fno-printf-return-value, -mfp16-format=ieee, -fno-reorder-functions, -mthumb-interwork]

.devcontainer/devcontainer.json

@@ -1,35 +1,43 @@
-
 {
 	"name": "Bridle",
 	"build": {
 		"dockerfile": "Dockerfile",
 		// Specify version for Zephyr Container
 		// See https://github.com/zephyrproject-rtos/docker-image/releases
-		"args": { "ZEPHYR_TAG": "v0.27.4" }
+		"args": {
+			"ZEPHYR_TAG": "v0.27.4"
+		}
 	},
 	// Needed for USB devices in container
 	"privileged": true,
 	"postCreateCommand": "bash ${localWorkspaceFolderBasename}/.devcontainer/post-create.sh /workspace ${localWorkspaceFolderBasename}",
 	"postStartCommand": "bash ${localWorkspaceFolderBasename}/.devcontainer/post-start.sh /workspace",
 	// Mount and set workspace folder
 	"workspaceMount": "source=${localWorkspaceFolder}/..,target=/workspace,type=bind",
-    "workspaceFolder": "/workspace",
+	"workspaceFolder": "/workspace",
 	// Username in container - align with Dockerfile
-    "remoteUser": "user",
+	"remoteUser": "user",
 	"mounts": [
 		// Persist installed extensions in container
 		"source=bridle-devcontainer-extensions,target=/home/user/.vscode-server/extensions,type=volume",
 		// Allow attaching USB devices to running container
 		"source=/dev,target=/dev,type=bind"
-	],"customizations": {
+	],
+	"customizations": {
 		"vscode": {
 			"settings": {
 				"editor.trimAutoWhitespace": true,
-				"editor.insertFinalNewline": true
+				"editor.insertFinalNewline": true,
+				"clangd.arguments": [
+					"--compile-commands-dir=/workspace/build",
+					"--header-insertion=never"
+				],
+				"clangd.path": "clangd-16"
 			},
 			"extensions": [
 				"marus25.cortex-debug",
-				"ms-vscode.cmake-tools"
+				"ms-vscode.cmake-tools",
+				"llvm-vs-code-extensions.vscode-clangd"
 			]
 		}
 	}

.devcontainer/post-create.sh

@@ -9,6 +9,8 @@ if [ ! -d ".west" ]; then
     west init -l $REPO_NAME
 fi
 
+ln -s $REPO_NAME/.devcontainer/.clangd
+
 west update
 west bridle-export