initial approach outline

Author: Richard Cunningham

.devcontainer/devcontainer.json

@@ -13,7 +13,8 @@
         "vscode": {
             // Set *default* container specific settings.json values on container create.
             "settings": {
-                "python.defaultInterpreterPath": "/venv/bin/python"
+                "python.defaultInterpreterPath": "/venv/bin/python",
+                "python.terminal.activateEnvironment": false
             },
             // Add the IDs of extensions you want installed when the container is created.
             "extensions": [
@@ -28,11 +29,13 @@
         }
     },
     "features": {
-        // Some default things like git config
-        "ghcr.io/devcontainers/features/common-utils:2": {
-            "upgradePackages": false
-        }
+        //
+        "./features": {}
+        //
     },
+    "initializeCommand": "mkdir -p ~/.config/devcontainer_rc",
+    //
+    //
     "runArgs": [
         // Allow the container to access the host X11 display and EPICS CA
         "--net=host",
@@ -41,6 +44,7 @@
     ],
     // Mount the parent as /workspaces so we can pip install peers as editable
     "workspaceMount": "source=${localWorkspaceFolder}/..,target=/workspaces,type=bind",
+    //also mount: ~/.config/devcontainer_rc ???
     // After the container is created, install the python project in editable form
     "postCreateCommand": "pip install $([ -f dev-requirements.txt ] && echo '-c dev-requirements.txt') -e '.[dev]' && pre-commit install"
 }

.devcontainer/features/devcontainer-feature.json

@@ -0,0 +1,30 @@
+{
+    "name": "BASH terminal configuration",
+    "id": "BASH",
+    "version": "1.0.0",
+    "containerEnv": {
+        "CONFIG_FOLDER": "/devcontainer_rc"
+    },
+    "description": "Make default BASH terminal nicer.",
+    // "options": {
+    //     "host_config_folder": {
+    //         "type": "string",
+    //         "default": "${localEnv:HOME}/.config/devcontainer_rc",
+    //         "description": "host folder for devcontainer shell configuration"
+    //     }
+    // },
+    "mounts": [
+        {
+            "source": "${localEnv:HOME}/.config/devcontainer_rc",
+            "target": "/devcontainer_rc",
+            "type": "bind"
+        }
+    ],
+    "onCreateCommand": "bash .devcontainer/features/onCreateCommand.sh"
+    // wack below into /devcontainer_rc/.bashrc
+    // delete this line if you do not want opinionated defaults
+    // source .devcontainer_rc/.bash_generated.sh
+    // Add your personal configuration preferences below
+    // not needed?
+    // "postCreateCommand": "echo source /.devcontainer_rc/bashrc >> /root/.bashrc"
+}

.devcontainer/features/install.sh

@@ -0,0 +1,2 @@
+#!/bin/bash
+

.devcontainer/features/onCreateCommand.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+touch $CONFIG_FOLDER/feature_settings_rc
+touch $CONFIG_FOLDER/bashrc
+touch $CONFIG_FOLDER/inputrc