Use R_PROFILE_USER

R/.Rprofile

@@ -0,0 +1,9 @@
+if (file.exists(".Rprofile")) {
+  source(".Rprofile")
+} else if (file.exists("~/.Rprofile")) {
+  source("~/.Rprofile")
+}
+
+if (is.null(getOption("vscodeR"))) {
+  source(file.path(Sys.getenv(if (.Platform$OS.type == "windows") "USERPROFILE" else "HOME"), ".vscode-R", "init.R"))
+}

src/rTerminal.ts

@@ -1,8 +1,11 @@
 "use strict";
 
+import os = require("os");
+import path = require("path");
+
 import { pathExists } from "fs-extra";
 import { isDeepStrictEqual } from "util";
-import { commands, Terminal, window } from "vscode";
+import { commands, Terminal, window, TerminalOptions } from "vscode";
 
 import { getSelection } from "./selection";
 import { removeSessionFiles } from "./session";
@@ -18,7 +21,17 @@ export function createRTerm(preserveshow?: boolean): boolean {
         const termOpt: string[] = config.get("rterm.option");
         pathExists(termPath, (err, exists) => {
             if (exists) {
-                rTerm = window.createTerminal(termName, termPath, termOpt);
+                let termOptions: TerminalOptions = {
+                    name: termName,
+                    shellPath: termPath,
+                    shellArgs: termOpt
+                };
+                if (config.get("sessionWatcher")) {
+                    termOptions.env = {
+                        R_PROFILE_USER: path.join(os.homedir(), ".vscode-R", ".Rprofile")
+                    };
+                }
+                rTerm = window.createTerminal(termOptions);
                 rTerm.show(preserveshow);
                 return true;
             }

src/session.ts

@@ -18,13 +18,13 @@ const sessionDir = path.join(".vscode", "vscode-R");
 
 export function deploySessionWatcher(extensionPath: string) {
     resDir = path.join(extensionPath, "dist", "resources");
-    const srcPath = path.join(extensionPath, "R", "init.R");
     const targetDir = path.join(os.homedir(), ".vscode-R");
     if (!fs.existsSync(targetDir)) {
         fs.mkdirSync(targetDir);
     }
-    const targetPath = path.join(targetDir, "init.R");
-    fs.copySync(srcPath, targetPath);
+
+    fs.copySync(path.join(extensionPath, "R", "init.R"), path.join(targetDir, "init.R"));
+    fs.copySync(path.join(extensionPath, "R", ".Rprofile"), path.join(targetDir, ".Rprofile"));
 }
 
 export function startResponseWatcher(sessionStatusBarItem: StatusBarItem) {