fix: improve openDevContainer support with local workspace folder (#544)

Author: mafredri

CHANGELOG.md

@@ -2,6 +2,9 @@
 
 ## Unreleased
 
+- Update `/openDevContainer` to support all dev container features when hostPath
+ and configFile are provided.
+
 ## [v1.9.2](https://github.com/coder/vscode-coder/releases/tag/v1.9.2) 2025-06-25
 
 ### Fixed

src/commands.ts

@@ -620,25 +620,29 @@ export class Commands{
  *
  * Throw if not logged into a deployment.
  */
-publicasyncopenDevContainer(...args: string[]): Promise<void>{
+publicasyncopenDevContainer(
+workspaceOwner: string,
+workspaceName: string,
+workspaceAgent: string,
+devContainerName: string,
+devContainerFolder: string,
+localWorkspaceFolder: string="",
+localConfigFile: string="",
+): Promise<void>{
 constbaseUrl=this.restClient.getAxiosInstance().defaults.baseURL;
 if(!baseUrl){
 thrownewError("You are not logged in");
 }
 
-constworkspaceOwner=args[0]asstring;
-constworkspaceName=args[1]asstring;
-constworkspaceAgent=args[2]asstring;
-constdevContainerName=args[3]asstring;
-constdevContainerFolder=args[4]asstring;
-
 awaitopenDevContainer(
 baseUrl,
 workspaceOwner,
 workspaceName,
 workspaceAgent,
 devContainerName,
 devContainerFolder,
+localWorkspaceFolder,
+localConfigFile,
 );
 }
 
@@ -751,6 +755,8 @@ async function openDevContainer(
 workspaceAgent: string,
 devContainerName: string,
 devContainerFolder: string,
+localWorkspaceFolder: string="",
+localConfigFile: string="",
 ){
 constremoteAuthority=toRemoteAuthority(
 baseUrl,
@@ -759,11 +765,26 @@ async function openDevContainer(
 workspaceAgent,
 );
 
+consthostPath=localWorkspaceFolder ? localWorkspaceFolder : undefined;
+constconfigFile=
+hostPath&&localConfigFile
+ ? {
+path: localConfigFile,
+scheme: "vscode-fileHost",
+}
+ : undefined;
 constdevContainer=Buffer.from(
-JSON.stringify({containerName: devContainerName}),
+JSON.stringify({
+containerName: devContainerName,
+ hostPath,
+ configFile,
+localDocker: false,
+}),
 "utf-8",
 ).toString("hex");
-constdevContainerAuthority=`attached-container+${devContainer}@${remoteAuthority}`;
+
+consttype=localWorkspaceFolder ? "dev-container" : "attached-container";
+constdevContainerAuthority=`${type}+${devContainer}@${remoteAuthority}`;
 
 letnewWindow=true;
 if(!vscode.workspace.workspaceFolders?.length){

src/extension.ts

@@ -165,6 +165,8 @@ export async function activate(ctx: vscode.ExtensionContext): Promise<void>{
 constworkspaceAgent=params.get("agent");
 constdevContainerName=params.get("devContainerName");
 constdevContainerFolder=params.get("devContainerFolder");
+constlocalWorkspaceFolder=params.get("localWorkspaceFolder");
+constlocalConfigFile=params.get("localConfigFile");
 
 if(!workspaceOwner){
 thrownewError(
@@ -190,6 +192,12 @@ export async function activate(ctx: vscode.ExtensionContext): Promise<void>{
 );
 }
 
+if(localConfigFile&&!localWorkspaceFolder){
+thrownewError(
+"local workspace folder must be specified as a query parameter if local config file is provided",
+);
+}
+
 // We are not guaranteed that the URL we currently have is for the URL
 // this workspace belongs to, or that we even have a URL at all (the
 // queries will default to localhost) so ask for it if missing.
@@ -228,6 +236,8 @@ export async function activate(ctx: vscode.ExtensionContext): Promise<void>{
 workspaceAgent,
 devContainerName,
 devContainerFolder,
+localWorkspaceFolder,
+localConfigFile,
 );
 }else{
 thrownewError(`Unknown path ${uri.path}`);