| index : archinstall32 | |
| Archlinux32 installer | gitolite user |
| summaryrefslogtreecommitdiff |
| -rw-r--r-- | archinstall/lib/user_interaction.py | 175 |
diff --git a/archinstall/lib/user_interaction.py b/archinstall/lib/user_interaction.py index d08d7e25..451251cd 100644 --- a/archinstall/lib/user_interaction.py +++ b/archinstall/lib/user_interaction.py @@ -1,5 +1,6 @@ -import getpass, pathlib, os, shutil, re +import getpass, pathlib, os, shutil, re, time import sys, time, signal, ipaddress, logging +import termios, tty, select # Used for char by char polling of sys.stdin from .exceptions import * from .profiles import Profile from .locale_helpers import list_keyboard_languages, verify_keyboard_layout, search_keyboard_layout @@ -95,6 +96,173 @@ def print_large_list(options, padding=5, margin_bottom=0, separator=': '): print(f"{str(column): >{highest_index_number_length}}{separator}{options[column]}", end = spaces) print() + return column, row + + +def generic_multi_select(options, text="Select one or more of the options above (leave blank to continue): ", sort=True, default=None, allow_empty=False): + if sort: + options = sorted(options) + + section = MiniCurses(get_terminal_width(), len(options)) + + selected_options = [] + + while True: + if len(selected_options) <= 0 and default and default in options: + selected_options.append(default) + + printed_options = [] + for option in options: + if option in selected_options: + printed_options.append(f'>> {option}') + else: + printed_options.append(f'{option}') + + section.clear(0, get_terminal_height()-section._cursor_y-1) + x, y = print_large_list(printed_options, margin_bottom=2) + section._cursor_y = len(printed_options) + section._cursor_x = 0 + section.write_line(text) + section.input_pos = section._cursor_x + selected_option = section.get_keyboard_input(end=None) + + if selected_option is None: + if len(selected_options) <= 0 and default: + selected_options = [default] + + if len(selected_options) or allow_empty is True: + break + else: + log('* Need to select at least one option!', fg='red') + continue + + elif selected_option.isdigit(): + if (selected_option := int(selected_option)) >= len(options): + log('* Option is out of range, please select another one!', fg='red') + continue + selected_option = options[selected_option] + if selected_option in selected_options: + selected_options.remove(selected_option) + else: + selected_options.append(selected_option) + + return selected_options + + +class MiniCurses(): + def __init__(self, width, height): + self.width = width + self.height = height + + self._cursor_y = 0 + self._cursor_x = 0 + + self.input_pos = 0 + + def write_line(self, text, clear_line=True): + if clear_line: + sys.stdout.flush() + sys.stdout.write("\033[%dG" % 0) + sys.stdout.flush() + sys.stdout.write(" " * (get_terminal_width()-1)) + sys.stdout.flush() + sys.stdout.write("\033[%dG" % 0) + sys.stdout.flush() + sys.stdout.write(text) + sys.stdout.flush() + self._cursor_x += len(text) + + def clear(self, x, y): + if x < 0: x = 0 + if y < 0: y = 0 + + #import time + #sys.stdout.write(f"Clearing from: {x, y}") + #sys.stdout.flush() + #time.sleep(2) + + sys.stdout.flush() + sys.stdout.write('\033[%d;%df' % (y, x)) + for line in range(get_terminal_height()-y-1, y): + sys.stdout.write(" " * (get_terminal_width()-1)) + sys.stdout.flush() + sys.stdout.write('\033[%d;%df' % (y, x)) + sys.stdout.flush() + + def deal_with_control_characters(self, char): + mapper = { + '\x7f' : 'BACKSPACE', + '\r' : 'CR', + '\n' : 'NL' + } + + if (mapped_char := mapper.get(char, None)) == 'BACKSPACE': + if self._cursor_x <= self.input_pos: + # Don't backspace futher back than the cursor start position during input + return True + # Move back to the current known position (BACKSPACE doesn't updated x-pos) + sys.stdout.flush() + sys.stdout.write("\033[%dG" % (self._cursor_x)) + sys.stdout.flush() + + # Write a blank space + sys.stdout.flush() + sys.stdout.write(" ") + sys.stdout.flush() + + # And move back again + sys.stdout.flush() + sys.stdout.write("\033[%dG" % (self._cursor_x)) + sys.stdout.flush() + + self._cursor_x -= 1 + + return True + elif mapped_char in ('CR', 'NL'): + return True + + return None + + def get_keyboard_input(self, strip_rowbreaks=True, end='\n'): + assert end in ['\r', '\n', None] + + poller = select.epoll() + response = '' + + sys_fileno = sys.stdin.fileno() + old_settings = termios.tcgetattr(sys_fileno) + tty.setraw(sys_fileno) + + poller.register(sys.stdin.fileno(), select.EPOLLIN) + + EOF = False + while EOF is False: + for fileno, event in poller.poll(0.025): + char = sys.stdin.read(1) + + #sys.stdout.write(f"{[char]}") + #sys.stdout.flush() + + if (newline := (char in ('\n', '\r'))): + EOF = True + + if not newline or strip_rowbreaks is False: + response += char + + if self.deal_with_control_characters(char) is not True: + self.write_line(response[-1], clear_line=False) + + termios.tcsetattr(sys_fileno, termios.TCSADRAIN, old_settings) + + if end: + sys.stdout.write(end) + sys.stdout.flush() + self._cursor_x = 0 + self._cursor_y += 1 + + if response: + return response + def ask_for_superuser_account(prompt='Username for required super-user with sudo privileges: ', forced=False): while 1: new_user = input(prompt).strip(' ') @@ -523,9 +691,6 @@ def select_kernel(options): kernels = sorted(list(options)) if kernels: - selected_kernels = generic_select(kernels, f"Choose which kernel to use (leave blank for default: {DEFAULT_KERNEL}): ") - if not selected_kernels: - return DEFAULT_KERNEL - return selected_kernels + return generic_multi_select(kernels, f"Choose which kernel to use (leave blank for default: {DEFAULT_KERNEL}): ", default=DEFAULT_KERNEL) raise RequirementError("Selecting kernels require a least one kernel to be given as an option.") |