add multiline-hidden prompt for both ui and cli

nixosModules/clanCore/vars/interface.nix

@@ -364,11 +364,13 @@ in
                           - hidden: A hidden text (e.g. password)
                           - line: A single line of text
                           - multiline: A multiline text
+                          - multiline-hidden: A multiline text
                       '';
                       type = enum [
                         "hidden"
                         "line"
                         "multiline"
+                        "multiline-hidden"
                       ];
                       default = "line";
                     };

pkgs/clan-cli/clan_cli/vars/prompt.py

@@ -1,6 +1,8 @@
 import enum
 import logging
 import sys
+import termios
+import tty
 from dataclasses import dataclass
 from getpass import getpass
 from typing import Any
@@ -15,6 +17,7 @@ class PromptType(enum.Enum):
     LINE = "line"
     HIDDEN = "hidden"
     MULTILINE = "multiline"
+    MULTILINE_HIDDEN = "multiline-hidden"
 
 
 @dataclass
@@ -36,6 +39,63 @@ class Prompt:
         )
 
 
+def get_multiline_hidden_input() -> str:
+    """
+    Get multiline input from the user without echoing the input.
+    This function allows the user to enter multiple lines of text,
+    and it will return the concatenated string of all lines entered.
+    The user can finish the input by pressing Ctrl-D (EOF).
+    """
+
+    # Save terminal settings
+    fd = sys.stdin.fileno()
+    old_settings = termios.tcgetattr(fd)
+
+    lines = []
+    current_line: list[str] = []
+
+    try:
+        # Change terminal settings - disable echo
+        tty.setraw(fd)
+
+        while True:
+            char = sys.stdin.read(1)
+
+            # Check for Ctrl-D (ASCII value 4 or EOF)
+            if not char or ord(char) == 4:
+                # Add last line if not empty
+                if current_line:
+                    lines.append("".join(current_line))
+                break
+
+            # Check for Ctrl-C (KeyboardInterrupt)
+            if ord(char) == 3:
+                raise KeyboardInterrupt
+
+            # Handle Enter key
+            if char == "\r" or char == "\n":
+                lines.append("".join(current_line))
+                current_line = []
+                # Print newline for visual feedback
+                sys.stdout.write("\r\n")
+                sys.stdout.flush()
+            # Handle backspace
+            elif ord(char) == 127 or ord(char) == 8:
+                if current_line:
+                    current_line.pop()
+            # Regular character
+            else:
+                current_line.append(char)
+
+    finally:
+        # Restore terminal settings
+        termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)
+        # Print a final newline for clean display
+        print()
+
+    return "\n".join(lines)
+
+
 def ask(
     ident: str,
     input_type: PromptType,
@@ -53,6 +113,9 @@ def ask(
         case PromptType.MULTILINE:
             print(f"{text} (Finish with Ctrl-D): ")
             result = sys.stdin.read()
+        case PromptType.MULTILINE_HIDDEN:
+            print("Enter multiple lines (press Ctrl-D to finish or Ctrl-C to cancel):")
+            result = get_multiline_hidden_input()
         case PromptType.HIDDEN:
             result = getpass(f"{text} (hidden): ")
 

pkgs/clan-cli/clan_cli/vars/set.py

@@ -33,19 +33,19 @@ def set_var(machine: str | Machine, var: str | Var, value: bytes, flake: Flake)
         )
 
 
-def set_via_stdin(machine: str, var_id: str, flake: Flake) -> None:
+def set_via_stdin(machine_name: str, var_id: str, flake: Flake) -> None:
-    var = get_var(str(flake.path), machine, var_id)
+    machine = Machine(name=machine_name, flake=flake)
+    var = get_var(str(flake.path), machine_name, var_id)
     if sys.stdin.isatty():
         new_value = ask(
             var.id,
-            PromptType.HIDDEN,
+            PromptType.MULTILINE_HIDDEN,
             None,
         ).encode("utf-8")
     else:
         new_value = sys.stdin.buffer.read()
 
-    _machine = Machine(name=machine, flake=flake)
+    set_var(machine, var, new_value, flake)
-    set_var(_machine, var, new_value, flake)
 
 
 def _set_command(args: argparse.Namespace) -> None:

pkgs/webview-ui/app/src/routes/machines/install/vars-step.tsx

@@ -1,9 +1,9 @@
 import { callApi } from "@/src/api";
 import {
   createForm,
+  FieldValues,
   SubmitHandler,
   validate,
-  FieldValues,
 } from "@modular-forms/solid";
 import { createQuery, useQueryClient } from "@tanstack/solid-query";
 import { Typography } from "@/src/components/Typography";
@@ -113,9 +113,14 @@ export const VarsStep = (props: VarsStepProps) => {
                             </Typography>
                             {/* Avoid nesting issue in case of a "." */}
                             <Field
-                              name={`${generator.name.replaceAll(".", "__dot__")}.${prompt.name.replaceAll(".", "__dot__")}`}
+                              name={`${generator.name.replaceAll(
+                                ".",
+                                "__dot__",
+                              )}.${prompt.name.replaceAll(".", "__dot__")}`}
                             >
                               {(field, props) => (
+                                <Switch
+                                  fallback={
                                     <TextInput
                                       inputProps={{
                                         ...props,
@@ -128,6 +133,23 @@ export const VarsStep = (props: VarsStepProps) => {
                                       value={prompt.previous_value ?? ""}
                                       error={field.error}
                                     />
+                                  }
+                                >
+                                  <Match
+                                    when={
+                                      prompt.prompt_type === "multiline" ||
+                                      prompt.prompt_type === "multiline-hidden"
+                                    }
+                                  >
+                                    <textarea
+                                      {...props}
+                                      class="w-full h-32 border border-gray-300 rounded-md p-2"
+                                      placeholder={prompt.description}
+                                      value={prompt.previous_value ?? ""}
+                                      name={prompt.description}
+                                    />
+                                  </Match>
+                                </Switch>
                               )}
                             </Field>
                           </Group>