add multiline-hidden prompt for both ui and cli

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:
-    var = get_var(str(flake.path), machine, var_id)
+def set_via_stdin(machine_name: str, var_id: str, flake: Flake) -> None:
+    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: