WizardKit/.bin/Scripts/functions/ddrescue.py

1116 lines
40 KiB
Python

# Wizard Kit: Functions - ddrescue
import json
import pathlib
import psutil
import re
import signal
import stat
import time
from functions.common import *
from functions.data import *
from operator import itemgetter
# STATIC VARIABLES
AUTHORIZED_DEST_FSTYPES = ['ext3', 'ext4', 'xfs']
AUTO_NEXT_PASS_1_THRESHOLD = 85
AUTO_NEXT_PASS_2_THRESHOLD = 98
DDRESCUE_SETTINGS = {
'--binary-prefixes': {'Enabled': True, 'Hidden': True},
'--data-preview': {'Enabled': True, 'Hidden': True},
'--idirect': {'Enabled': True},
'--odirect': {'Enabled': True},
'--max-read-rate': {'Enabled': False, 'Value': '128MiB'},
'--min-read-rate': {'Enabled': True, 'Value': '64KiB'},
'--reopen-on-error': {'Enabled': True},
'--retry-passes=': {'Enabled': True, 'Value': '0'},
'--timeout=': {'Enabled': True, 'Value': '5m'},
'-vvvv': {'Enabled': True, 'Hidden': True},
}
USAGE = """ {script_name} clone [source [destination]]
{script_name} image [source [destination]]
(e.g. {script_name} clone /dev/sda /dev/sdb)
"""
# Functions
def abort_ddrescue_tui():
run_program(['losetup', '-D'])
abort()
def build_outer_panes(source, dest):
"""Build top and side panes."""
clear_screen()
# Top panes
source_pane = tmux_splitw(
'-bdvl', '2',
'-PF', '#D',
'echo-and-hold "{BLUE}Source{CLEAR}\n{text}"'.format(
text = source['Display Name'],
**COLORS))
tmux_splitw(
'-t', source_pane,
'-dhl', '21',
'echo-and-hold "{BLUE}Started{CLEAR}\n{text}"'.format(
text = time.strftime("%Y-%m-%d %H:%M %Z"),
**COLORS))
tmux_splitw(
'-t', source_pane,
'-dhp', '50',
'echo-and-hold "{BLUE}Destination{CLEAR}\n{text}"'.format(
text = dest['Display Name'],
**COLORS))
# Side pane
update_progress(source)
tmux_splitw('-dhl', '21',
'watch', '--color', '--no-title', '--interval', '1',
'cat', source['Progress Out'])
def dest_safety_check(source, dest):
"""Verify the destination is appropriate for the source."""
source_size = source['Details']['size']
if dest['Is Dir']:
cmd = ['findmnt', '-J',
'-o', 'SOURCE,TARGET,FSTYPE,OPTIONS,SIZE,AVAIL,USED',
'-T', dest['Path']]
result = run_program(cmd)
try:
json_data = json.loads(result.stdout.decode())
except Exception:
# Welp, let's abort
print_error('Failed to verify destination usability.')
abort_ddrescue_tui()
else:
dest_size = json_data['filesystems'][0]['avail']
dest['Free Space'] = dest_size
dest['Filesystem'] = json_data['filesystems'][0]['fstype']
dest['Mount options'] = json_data['filesystems'][0]['options']
else:
dest_size = dest['Details']['size']
# Fix strings before converting to bytes
source_size = re.sub(
r'(\d+\.?\d*)\s*([KMGTB])B?', r'\1 \2B', source_size.upper())
dest_size = re.sub(
r'(\d+\.?\d*)\s*([KMGTB])B?', r'\1 \2B', dest_size.upper())
# Convert to bytes and compare size
source_size = convert_to_bytes(source_size)
dest_size = convert_to_bytes(dest_size)
if source['Type'] == 'Image' and dest_size < (source_size * 1.2):
# Imaging: ensure 120% of source size is available
print_error(
'Not enough free space on destination, refusing to continue.')
print_standard(' Dest {d_size} < Required {s_size}'.format(
d_size = human_readable_size(dest_size),
s_size = human_readable_size(source_size * 1.2)))
abort_ddrescue_tui()
elif source['Type'] == 'Clone' and source_size > dest_size:
# Cloning: ensure dest >= size
print_error('Destination is too small, refusing to continue.')
print_standard(' Dest {d_size} < Source {s_size}'.format(
d_size = human_readable_size(dest_size),
s_size = human_readable_size(source_size)))
abort_ddrescue_tui()
# Imaging specific checks
if source['Type'] == 'Image':
# Filesystem Type
if dest['Filesystem'] not in AUTHORIZED_DEST_FSTYPES:
print_error(
'Destination filesystem "{}" is not a recommended type.'.format(
dest['Filesystem']))
print_info('Authorized types are: {}'.format(
' / '.join(AUTHORIZED_DEST_FSTYPES).upper()))
print_standard(' ')
if not ask('Proceed anyways? (Strongly discouraged)'):
abort_ddrescue_tui()
# Read-Write access
dest_ok = True
dest_st_mode = os.stat(dest['Path']).st_mode
dest_ok = dest_ok and dest_st_mode & stat.S_IRUSR
dest_ok = dest_ok and dest_st_mode & stat.S_IWUSR
dest_ok = dest_ok and dest_st_mode & stat.S_IXUSR
if not dest_ok:
print_error('Destination is not writable, refusing to continue.')
abort_ddrescue_tui()
# Mount options check
if 'rw' not in dest['Mount options'].split(','):
print_error(
'Destination is not mounted read-write, refusing to continue.')
abort_ddrescue_tui()
def get_device_details(dev_path):
"""Get device details via lsblk, returns JSON dict."""
try:
cmd = (
'lsblk',
'--json',
'--output-all',
'--paths',
dev_path)
result = run_program(cmd)
except CalledProcessError:
print_error('Failed to get device details for {}'.format(dev_path))
abort_ddrescue_tui()
json_data = json.loads(result.stdout.decode())
# Just return the first device (there should only be one)
return json_data['blockdevices'][0]
def get_status_color(s, t_success=99, t_warn=90):
"""Get color based on status, returns str."""
color = COLORS['CLEAR']
p_recovered = -1
try:
p_recovered = float(s)
except ValueError:
# Status is either in lists below or will default to red
pass
if s in ('Pending',):
color = COLORS['CLEAR']
elif s in ('Working',):
color = COLORS['YELLOW']
elif p_recovered >= t_success:
color = COLORS['GREEN']
elif p_recovered >= t_warn:
color = COLORS['YELLOW']
else:
color = COLORS['RED']
return color
def mark_pass_complete(source):
"""Mark current pass complete for device, and overall if applicable."""
current_pass = source['Current Pass']
current_pass_num = int(current_pass[-1:])
next_pass_num = current_pass_num + 1
if 1 <= next_pass_num <= 3:
next_pass = 'Pass {}'.format(next_pass_num)
else:
next_pass = 'Done'
# Check children progress
pass_complete_for_all_devs = True
for child in source['Children']:
if child['Dev Path'] == source['Current Device']:
# This function was called for this device, mark complete
child[current_pass]['Done'] = True
# TODO remove test code
from random import randint
status = randint((current_pass_num-1)*10+85, 110) + randint(0, 99) / 100
child[current_pass]['Status'] = status
if not child[current_pass]['Done']:
pass_complete_for_all_devs = False
# Update source vars
if pass_complete_for_all_devs:
source['Current Pass'] = next_pass
source[current_pass]['Done'] = True
# TODO Remove test code
if source['Children']:
status = 100
for child in source['Children']:
try:
status = min(status, child[current_pass]['Status'])
except TypeError:
# Force 0% to ensure we won't auto-continue to next pass
status = 0
else:
from random import randint
status = randint((current_pass_num-1)*10+75, 100) + randint(0, 99) / 100
source[current_pass]['Status'] = status
def mark_pass_incomplete(source):
"""Mark current pass incomplete."""
current_pass = source['Current Pass']
source[current_pass]['Status'] = 'Incomplete'
for child in source['Children']:
if child['Dev Path'] == source['Current Device']:
# This function was called for this device, mark incomplete
child[current_pass]['Status'] = 'Incomplete'
def mark_all_passes_pending(source):
"""Mark all devs and passes as pending in preparation for retry."""
source['Current Pass'] = 'Pass 1'
for p_num in ['Pass 1', 'Pass 2', 'Pass 3']:
source[p_num]['Status'] = 'Pending'
source[p_num]['Done'] = False
for child in source['Children']:
child[p_num]['Status'] = 'Pending'
child[p_num]['Done'] = False
def menu_clone(source_path, dest_path):
"""ddrescue cloning menu."""
# Set devices
source = select_device('source', source_path)
source['Current Pass'] = 'Pass 1'
source['Pass 1'] = {'Status': 'Pending', 'Done': False}
source['Pass 2'] = {'Status': 'Pending', 'Done': False}
source['Pass 3'] = {'Status': 'Pending', 'Done': False}
source['Type'] = 'Clone'
dest = select_device('destination', dest_path,
skip_device = source['Details'], allow_image_file = False)
dest_safety_check(source, dest)
# Show selection details
show_selection_details(source, dest)
set_dest_image_paths(source, dest)
check_dest_paths(source)
# Confirm
if not ask('Proceed with clone?'):
abort_ddrescue_tui()
show_safety_check()
# Main menu
build_outer_panes(source, dest)
menu_main(source, dest)
# Done
run_program(['losetup', '-D'])
run_program(['tmux', 'kill-window'])
exit_script()
def menu_ddrescue(*args):
"""Main ddrescue loop/menu."""
args = list(args)
script_name = os.path.basename(args.pop(0))
run_mode = ''
source_path = None
dest_path = None
# Parse args
try:
run_mode = args.pop(0)
source_path = args.pop(0)
dest_path = args.pop(0)
except IndexError:
# We'll set the missing paths later
pass
# Show proper menu or exit
if run_mode == 'clone':
menu_clone(source_path, dest_path)
elif run_mode == 'image':
menu_image(source_path, dest_path)
else:
if not re.search(r'(^$|help|-h|\?)', run_mode, re.IGNORECASE):
print_error('Invalid mode.')
show_usage(script_name)
exit_script()
def menu_image(source_path, dest_path):
"""ddrescue imaging menu."""
# Set devices
source = select_device('source', source_path, allow_image_file = False)
source['Current Pass'] = 'Pass 1'
source['Pass 1'] = {'Status': 'Pending', 'Done': False}
source['Pass 2'] = {'Status': 'Pending', 'Done': False}
source['Pass 3'] = {'Status': 'Pending', 'Done': False}
source['Type'] = 'Image'
dest = select_dest_path(dest_path, skip_device=source['Details'])
dest_safety_check(source, dest)
# Select child device(s)
source['Children'] = menu_select_children(source)
set_dest_image_paths(source, dest)
check_dest_paths(source)
# Show selection details
show_selection_details(source, dest)
# Confirm
if not ask('Proceed with imaging?'):
abort_ddrescue_tui()
# Main menu
build_outer_panes(source, dest)
menu_main(source, dest)
# Done
run_program(['losetup', '-D'])
run_program(['tmux', 'kill-window'])
exit_script()
def menu_main(source, dest):
"""Main menu is used to set ddrescue settings."""
title = '{GREEN}ddrescue TUI: Main Menu{CLEAR}\n\n'.format(**COLORS)
title += '{BLUE}Current pass: {CLEAR}'.format(**COLORS)
if 'Settings' not in source:
source['Settings'] = DDRESCUE_SETTINGS.copy()
# Build menu
main_options = [
{'Base Name': 'Auto continue (if recovery % over threshold)',
'Enabled': True},
{'Base Name': 'Retry (mark non-rescued sectors "non-tried")',
'Enabled': False},
{'Base Name': 'Reverse direction', 'Enabled': False},
]
actions =[
{'Name': 'Start', 'Letter': 'S'},
{'Name': 'Change settings {YELLOW}(experts only){CLEAR}'.format(
**COLORS),
'Letter': 'C'},
{'Name': 'Quit', 'Letter': 'Q', 'CRLF': True},
]
# Show menu
while True:
current_pass = source['Current Pass']
display_pass = '1 "Initial Read"'
if current_pass == 'Pass 2':
display_pass = '2 "Trimming bad areas"'
elif current_pass == 'Pass 3':
display_pass = '3 "Scraping bad areas"'
elif current_pass == 'Done':
display_pass = 'Done'
# Update entries
for opt in main_options:
opt['Name'] = '{} {}'.format(
'[✓]' if opt['Enabled'] else '[ ]',
opt['Base Name'])
selection = menu_select(
title = title + display_pass,
main_entries = main_options,
action_entries = actions)
if selection.isnumeric():
# Toggle selection
index = int(selection) - 1
main_options[index]['Enabled'] = not main_options[index]['Enabled']
elif selection == 'S':
# Set settings for pass
settings = []
for k, v in source['Settings'].items():
if not v['Enabled']:
continue
if k[-1:] == '=':
settings.append('{}{}'.format(k, v['Value']))
else:
settings.append(k)
if 'Value' in v:
settings.append(v['Value'])
for opt in main_options:
if 'Retry' in opt['Base Name'] and opt['Enabled']:
settings.extend(['--retrim', '--try-again'])
mark_all_passes_pending(source)
current_pass = 'Pass 1'
if 'Reverse' in opt['Base Name'] and opt['Enabled']:
settings.append('--reverse')
# Disable for next pass
if 'Auto' not in opt['Base Name']:
opt['Enabled'] = False
# Run ddrecue
auto_run = True
while auto_run:
run_ddrescue(source, dest, settings)
auto_run = False
if current_pass == 'Done':
# "Pass Done" i.e. all passes done
break
if not main_options[0]['Enabled']:
# Auto next pass
break
if source[current_pass]['Done']:
try:
recovered = float(source[current_pass]['Status'])
except ValueError:
# Nope
recovered = 'Nope'
pass
else:
if current_pass == 'Pass 1' and recovered > 85:
auto_run = True
elif current_pass == 'Pass 2' and recovered > 98:
auto_run = True
# Update current pass for next iteration
current_pass = source['Current Pass']
elif selection == 'C':
menu_settings(source)
elif selection == 'Q':
break
def menu_select_children(source):
"""Select child device(s) or whole disk, returns list."""
dev_options = [{
'Base Name': '{:<14}(Whole device)'.format(source['Dev Path']),
'Path': source['Dev Path'],
'Selected': True}]
for c_details in source['Details'].get('children', []):
dev_options.append({
'Base Name': '{:<14}({:>6} {})'.format(
c_details['name'],
c_details['size'],
c_details['fstype'] if c_details['fstype'] else 'Unknown'),
'Details': c_details,
'Path': c_details['name'],
'Selected': False})
actions = [
{'Name': 'Proceed', 'Letter': 'P'},
{'Name': 'Quit', 'Letter': 'Q'}]
# Skip Menu if there's no children
if len(dev_options) == 1:
return []
# Show Menu
while True:
# Update entries
for dev in dev_options:
dev['Name'] = '{} {}'.format(
'*' if dev['Selected'] else ' ',
dev['Base Name'])
selection = menu_select(
title = 'Please select part(s) to image',
main_entries = dev_options,
action_entries = actions)
if selection.isnumeric():
# Toggle selection
index = int(selection) - 1
dev_options[index]['Selected'] = not dev_options[index]['Selected']
# Deselect whole device if child selected (this round)
if index > 0:
dev_options[0]['Selected'] = False
# Deselect all children if whole device selected
if dev_options[0]['Selected']:
for dev in dev_options[1:]:
dev['Selected'] = False
elif selection == 'P':
break
elif selection == 'Q':
abort_ddrescue_tui()
# Check selection
selected_children = [{
'Details': d['Details'],
'Dev Path': d['Path'],
'Pass 1': {'Status': 'Pending', 'Done': False},
'Pass 2': {'Status': 'Pending', 'Done': False},
'Pass 3': {'Status': 'Pending', 'Done': False}} for d in dev_options
if d['Selected'] and 'Whole device' not in d['Base Name']]
return selected_children
def menu_select_device(title='Which device?', skip_device={}):
"""Select block device via a menu, returns dev_path as str."""
skip_names = [
skip_device.get('name', None), skip_device.get('pkname', None)]
skip_names = [n for n in skip_names if n]
try:
cmd = (
'lsblk',
'--json',
'--nodeps',
'--output-all',
'--paths')
result = run_program(cmd)
json_data = json.loads(result.stdout.decode())
except CalledProcessError:
print_error('Failed to get device details for {}'.format(dev_path))
abort_ddrescue_tui()
# Build menu
dev_options = []
for dev in json_data['blockdevices']:
# Disable dev if in skip_names
disable_dev = dev['name'] in skip_names or dev['pkname'] in skip_names
# Append non-matching devices
dev_options.append({
'Name': '{name:12} {tran:5} {size:6} {model} {serial}'.format(
name = dev['name'],
tran = dev['tran'] if dev['tran'] else '',
size = dev['size'] if dev['size'] else '',
model = dev['model'] if dev['model'] else '',
serial = dev['serial'] if dev['serial'] else ''),
'Path': dev['name'],
'Disabled': disable_dev})
dev_options = sorted(dev_options, key=itemgetter('Name'))
if not dev_options:
print_error('No devices available.')
abort_ddrescue_tui()
# Show Menu
actions = [{'Name': 'Quit', 'Letter': 'Q'}]
selection = menu_select(
title = title,
main_entries = dev_options,
action_entries = actions,
disabled_label = 'SOURCE DEVICE')
if selection.isnumeric():
return dev_options[int(selection)-1]['Path']
elif selection == 'Q':
abort_ddrescue_tui()
def menu_select_path(skip_device={}):
"""Select path via menu, returns path as str."""
pwd = os.path.realpath(global_vars['Env']['PWD'])
s_path = None
# Build Menu
path_options = [
{'Name': 'Current directory: {}'.format(pwd), 'Path': pwd},
{'Name': 'Local device', 'Path': None},
{'Name': 'Enter manually', 'Path': None}]
actions = [{'Name': 'Quit', 'Letter': 'Q'}]
# Show Menu
selection = menu_select(
title = 'Please make a selection',
main_entries = path_options,
action_entries = actions)
if selection == 'Q':
abort_ddrescue_tui()
elif selection.isnumeric():
index = int(selection) - 1
if path_options[index]['Path']:
# Current directory
s_path = pwd
elif path_options[index]['Name'] == 'Local device':
# Local device
local_device = select_device(
skip_device = skip_device,
allow_image_file = False)
# Mount device volume(s)
report = mount_volumes(
all_devices = False,
device_path = local_device['Dev Path'],
read_write = True)
# Select volume
vol_options = []
for k, v in sorted(report.items()):
disabled = v['show_data']['data'] == 'Failed to mount'
if disabled:
name = '{name} (Failed to mount)'.format(**v)
else:
name = '{name} (mounted on "{mount_point}")'.format(**v)
vol_options.append({
'Name': name,
'Path': v['mount_point'],
'Disabled': disabled})
selection = menu_select(
title = 'Please select a volume',
main_entries = vol_options,
action_entries = actions)
if selection.isnumeric():
s_path = vol_options[int(selection)-1]['Path']
elif selection == 'Q':
abort_ddrescue_tui()
elif path_options[index]['Name'] == 'Enter manually':
# Manual entry
while not s_path:
m_path = input('Please enter path: ').strip()
if m_path and pathlib.Path(m_path).is_dir():
s_path = os.path.realpath(m_path)
elif m_path and pathlib.Path(m_path).is_file():
print_error('File "{}" exists'.format(m_path))
else:
print_error('Invalid path "{}"'.format(m_path))
return s_path
def menu_settings(source):
"""Change advanced ddrescue settings."""
title = '{GREEN}ddrescue TUI: Expert Settings{CLEAR}\n\n'.format(**COLORS)
title += '{YELLOW}These settings can cause {CLEAR}'.format(**COLORS)
title += '{RED}MAJOR DAMAGE{CLEAR}{YELLOW} to drives{CLEAR}\n'.format(
**COLORS)
title += 'Please read the manual before making any changes'
# Build menu
settings = []
for k, v in sorted(source['Settings'].items()):
if not v.get('Hidden', False):
settings.append({'Base Name': k.replace('=', ''), 'Flag': k})
actions = [{'Name': 'Main Menu', 'Letter': 'M'}]
# Show menu
while True:
for s in settings:
s['Name'] = '{}{}{}'.format(
s['Base Name'],
' = ' if 'Value' in source['Settings'][s['Flag']] else '',
source['Settings'][s['Flag']].get('Value', ''))
if not source['Settings'][s['Flag']]['Enabled']:
s['Name'] = '{YELLOW}{name} (Disabled){CLEAR}'.format(
name = s['Name'],
**COLORS)
selection = menu_select(
title = title,
main_entries = settings,
action_entries = actions)
if selection.isnumeric():
index = int(selection) - 1
flag = settings[index]['Flag']
enabled = source['Settings'][flag]['Enabled']
if 'Value' in source['Settings'][flag]:
answer = choice(
choices = ['T', 'C'],
prompt = 'Toggle or change value for "{}"'.format(flag))
if answer == 'T':
# Toggle
source['Settings'][flag]['Enabled'] = not enabled
else:
# Update value
source['Settings'][flag]['Value'] = get_simple_string(
prompt = 'Enter new value')
else:
source['Settings'][flag]['Enabled'] = not enabled
elif selection == 'M':
break
def run_ddrescue(source, dest, settings):
"""Run ddrescue pass."""
current_pass = source['Current Pass']
# Set pass options
if current_pass == 'Pass 1':
settings.extend(['--no-trim', '--no-scrape'])
elif current_pass == 'Pass 2':
# Allow trimming
settings.append('--no-scrape')
elif current_pass == 'Pass 3':
# Allow trimming and scraping
pass
elif current_pass == 'Done':
clear_screen()
print_warning('Recovery already completed?')
pause('Press Enter to return to main menu...')
return
else:
raise GenericError("This shouldn't happen?")
# Set device(s) to clone/image
source[current_pass]['Status'] = 'Working'
source_devs = [source]
if source['Children']:
# Use only selected child devices
source_devs = source['Children']
# Set heights
## NOTE: 12/33 is based on min heights for SMART/ddrescue panes (12+22+1sep)
result = run_program(['tput', 'lines'])
height = int(result.stdout.decode().strip())
height_smart = int(height * (12 / 33))
height_ddrescue = height - height_smart
# Show SMART status
smart_pane = tmux_splitw(
'-bdvl', str(height_smart),
'-PF', '#D',
'watch', '--color', '--no-title', '--interval', '300',
'ddrescue-tui-smart-display', source['Dev Path'])
# Start pass for each selected device
for s_dev in source_devs:
if s_dev[current_pass]['Done']:
# Move to next device
continue
source['Current Device'] = s_dev['Dev Path']
s_dev[current_pass]['Status'] = 'Working'
update_progress(source)
# Set ddrescue cmd
if source['Type'] == 'Clone':
cmd = ['ddrescue', *settings, '--force',
s_dev['Dev Path'], dest['Dev Path'], s_dev['Dest Paths']['Map']]
else:
cmd = ['ddrescue', *settings,
s_dev['Dev Path'], s_dev['Dest Paths']['Image'],
s_dev['Dest Paths']['Map']]
# Start ddrescue
try:
clear_screen()
print_info('Current dev: {}'.format(s_dev['Dev Path']))
ddrescue_proc = popen_program(['./__choose_exit', *cmd])
#ddrescue_proc = popen_program(['./__exit_ok', *cmd])
#ddrescue_proc = popen_program(cmd)
ddrescue_proc.wait()
except KeyboardInterrupt:
# Catch user abort
pass
# Was ddrescue aborted?
return_code = ddrescue_proc.poll()
if return_code is None or return_code is 130:
clear_screen()
print_warning('Aborted')
mark_pass_incomplete(source)
break
elif return_code:
# i.e. not None and not 0
print_error('Error(s) encountered, see message above.')
mark_pass_incomplete(source)
break
else:
# Not None and not non-zero int, assuming 0
mark_pass_complete(source)
# Cleanup
update_progress(source)
if str(return_code) != '0':
# Pause on errors
pause('Press Enter to return to main menu... ')
run_program(['tmux', 'kill-pane', '-t', smart_pane])
def select_dest_path(provided_path=None, skip_device={}):
dest = {'Is Dir': True, 'Is Image': False}
# Set path
if provided_path:
dest['Path'] = provided_path
else:
dest['Path'] = menu_select_path(skip_device=skip_device)
dest['Path'] = os.path.realpath(dest['Path'])
# Check path
if not pathlib.Path(dest['Path']).is_dir():
print_error('Invalid path "{}"'.format(dest['Path']))
abort_ddrescue_tui()
# Create ticket folder
if ask('Create ticket folder?'):
ticket_folder = get_simple_string('Please enter folder name')
dest['Path'] = os.path.join(
dest['Path'], ticket_folder)
try:
os.makedirs(dest['Path'], exist_ok=True)
except OSError:
print_error('Failed to create folder "{}"'.format(
dest['Path']))
abort_ddrescue_tui()
# Set display name
result = run_program(['tput', 'cols'])
width = int((int(result.stdout.decode().strip()) - 21) / 2) - 2
if len(dest['Path']) > width:
dest['Display Name'] = '...{}'.format(dest['Path'][-(width-3):])
else:
dest['Display Name'] = dest['Path']
return dest
def select_device(description='device', provided_path=None,
skip_device={}, allow_image_file=True):
"""Select device via provided path or menu, return dev as dict."""
dev = {'Is Dir': False, 'Is Image': False}
# Set path
if provided_path:
dev['Path'] = provided_path
else:
dev['Path'] = menu_select_device(
title='Please select a {}'.format(description),
skip_device=skip_device)
dev['Path'] = os.path.realpath(dev['Path'])
# Check path
if pathlib.Path(dev['Path']).is_block_device():
dev['Dev Path'] = dev['Path']
elif allow_image_file and pathlib.Path(dev['Path']).is_file():
dev['Dev Path'] = setup_loopback_device(dev['Path'])
dev['Is Image'] = True
else:
print_error('Invalid {} "{}"'.format(description, dev['Path']))
abort_ddrescue_tui()
# Get device details
dev['Details'] = get_device_details(dev['Dev Path'])
if 'Children' not in dev:
dev['Children'] = {}
# Check for parent device(s)
while dev['Details']['pkname']:
print_warning('{} "{}" is a child device.'.format(
description.title(), dev['Dev Path']))
if ask('Use parent device "{}" instead?'.format(
dev['Details']['pkname'])):
# Update dev with parent info
dev['Dev Path'] = dev['Details']['pkname']
dev['Details'] = get_device_details(dev['Dev Path'])
else:
# Leave alone
break
# Set display name
if dev['Is Image']:
dev['Display Name'] = dev['Path']
else:
dev['Display Name'] = '{name} {size} {model}'.format(
**dev['Details'])
result = run_program(['tput', 'cols'])
width = int((int(result.stdout.decode().strip()) - 21) / 2) - 2
if len(dev['Display Name']) > width:
if dev['Is Image']:
dev['Display Name'] = '...{}'.format(dev['Display Name'][-(width-3):])
else:
dev['Display Name'] = '{}...'.format(dev['Display Name'][:(width-3)])
else:
dev['Display Name'] = dev['Display Name']
return dev
def check_dest_paths(source):
"""Check for image and/or map file and alert user about details."""
dd_image_exists = os.path.exists(source['Dest Paths']['Image'])
map_exists = os.path.exists(source['Dest Paths']['Map'])
if 'Clone' in source['Dest Paths']['Map']:
if map_exists:
# We're cloning and a matching map file was detected
if not ask('Matching map file detected, resume recovery?'):
abort_ddrescue_tui()
else:
abort_imaging = False
resume_files_exist = False
source_devs = [source]
if source['Children']:
source_devs = source['Children']
for dev in source_devs:
# We're imaging
dd_image_exists = os.path.exists(dev['Dest Paths']['Image'])
map_exists = os.path.exists(dev['Dest Paths']['Map'])
if dd_image_exists and not map_exists:
# Refuce to resume without map file
i = dev['Dest Paths']['Image']
i = i[i.rfind('/')+1:]
print_error(
'Detected image "{}" but not the matching map'.format(i))
abort_imaging = True
elif not dd_image_exists and map_exists:
# Can't resume without dd_image
m = dev['Dest Paths']['Map']
m = m[m.rfind('/')+1:]
print_error(
'Detected map "{}" but not the matching image'.format(m))
abort_imaging = True
elif dd_image_exists and map_exists:
# Matching dd_image and map file were detected
resume_files_exist = True
p = 'Matching image and map file{} detected, resume recovery?'.format(
's' if len(source_devs) > 1 else '')
if abort_imaging or (resume_files_exist and not ask(p)):
abort_ddrescue_tui()
def set_dest_image_paths(source, dest):
"""Set destination image path for source and any child devices."""
if source['Type'] == 'Clone':
base = '{pwd}/Clone_{size}_{model}'.format(
pwd = os.path.realpath(global_vars['Env']['PWD']),
size = source['Details']['size'],
model = source['Details'].get('model', 'Unknown'))
else:
base = '{Path}/{size}_{model}'.format(
size = source['Details']['size'],
model = source['Details'].get('model', 'Unknown'),
**dest)
source['Dest Paths'] = {
'Image': '{}.dd'.format(base),
'Map': '{}.map'.format(base)}
# Child devices
for child in source['Children']:
p_label = ''
if child['Details']['label']:
p_label = '_{}'.format(child['Details']['label'])
base = '{Path}/{size}_{model}_{p_num}_{p_size}{p_label}'.format(
size = source['Details']['size'],
model = source['Details'].get('model', 'Unknown'),
p_num = child['Details']['name'].replace(
child['Details']['pkname'], ''),
p_size = child['Details']['size'],
p_label = p_label,
**dest)
child['Dest Paths'] = {
'Image': '{}.dd'.format(base),
'Map': '{}.map'.format(base)}
def setup_loopback_device(source_path):
"""Setup a loopback device for source_path, returns dev_path as str."""
cmd = (
'losetup',
'--find',
'--partscan',
'--show',
source_path)
try:
out = run_program(cmd, check=True)
dev_path = out.stdout.decode().strip()
sleep(1)
except CalledProcessError:
print_error('Failed to setup loopback device for source.')
abort_ddrescue_tui()
else:
return dev_path
def show_device_details(dev_path):
"""Display device details on screen."""
cmd = (
'lsblk', '--nodeps',
'--output', 'NAME,TRAN,TYPE,SIZE,VENDOR,MODEL,SERIAL',
dev_path)
result = run_program(cmd)
output = result.stdout.decode().splitlines()
print_info(output.pop(0))
for line in output:
print_standard(line)
# Children info
cmd = ('lsblk', '--output', 'NAME,SIZE,FSTYPE,LABEL,MOUNTPOINT', dev_path)
result = run_program(cmd)
output = result.stdout.decode().splitlines()
print_info(output.pop(0))
for line in output:
print_standard(line)
def show_safety_check():
"""Display safety check message and get confirmation from user."""
print_standard('\nSAFETY CHECK')
print_warning('All data will be DELETED from the '
'destination device and partition(s) listed above.')
print_warning('This is irreversible and will lead '
'to {CLEAR}{RED}DATA LOSS.'.format(**COLORS))
if not ask('Asking again to confirm, is this correct?'):
abort_ddrescue_tui()
def show_selection_details(source, dest):
clear_screen()
# Source
print_success('Source device')
if source['Is Image']:
print_standard('Using image file: {}'.format(source['Path']))
print_standard(' (via loopback device: {})'.format(
source['Dev Path']))
show_device_details(source['Dev Path'])
print_standard(' ')
# Destination
if source['Type'] == 'Clone':
print_success('Destination device ', end='')
print_error('(ALL DATA WILL BE DELETED)', timestamp=False)
show_device_details(dest['Dev Path'])
else:
print_success('Destination path')
print_standard(dest['Path'])
print_info('{:<8}{}'.format('FREE', 'FSTYPE'))
print_standard('{:<8}{}'.format(
dest['Free Space'], dest['Filesystem']))
print_standard(' ')
def show_usage(script_name):
print_info('Usage:')
print_standard(USAGE.format(script_name=script_name))
pause()
def tmux_splitw(*args):
"""Run tmux split-window command and return output as str."""
cmd = ['tmux', 'split-window', *args]
result = run_program(cmd)
return result.stdout.decode().strip()
def update_progress(source):
"""Update progress file."""
if 'Progress Out' not in source:
source['Progress Out'] = '{}/progress.out'.format(global_vars['LogDir'])
output = []
if source['Type'] == 'Clone':
output.append(' {BLUE}Cloning Status{CLEAR}'.format(**COLORS))
else:
output.append(' {BLUE}Imaging Status{CLEAR}'.format(**COLORS))
output.append('─────────────────────')
# Main device
if source['Type'] == 'Clone':
output.append('{BLUE}{dev}{CLEAR}'.format(
dev = 'Image File' if source['Is Image'] else source['Dev Path'],
**COLORS))
for x in (1, 2, 3):
p_num = 'Pass {}'.format(x)
s_display = source[p_num]['Status']
try:
s_display = float(s_display)
except ValueError:
# Ignore and leave s_display alone
pass
else:
s_display = '{:0.2f} %'.format(s_display)
output.append('{p_num}{s_color}{s_display:>15}{CLEAR}'.format(
p_num = p_num,
s_color = get_status_color(source[p_num]['Status']),
s_display = s_display,
**COLORS))
else:
# Image mode
if source['Children']:
# Just parts
for child in source['Children']:
output.append('{BLUE}{dev}{CLEAR}'.format(
dev = child['Dev Path'],
**COLORS))
for x in (1, 2, 3):
p_num = 'Pass {}'.format(x)
s_display = child[p_num]['Status']
try:
s_display = float(s_display)
except ValueError:
# Ignore and leave s_display alone
pass
else:
s_display = '{:0.2f} %'.format(s_display)
output.append('{p_num}{s_color}{s_display:>15}{CLEAR}'.format(
p_num = p_num,
s_color = get_status_color(child[p_num]['Status']),
s_display = s_display,
**COLORS))
output.append(' ')
else:
# Whole device
output.append('{BLUE}{dev}{CLEAR} {YELLOW}(Whole){CLEAR}'.format(
dev = source['Dev Path'],
**COLORS))
for x in (1, 2, 3):
p_num = 'Pass {}'.format(x)
s_display = source[p_num]['Status']
try:
s_display = float(s_display)
except ValueError:
# Ignore and leave s_display alone
pass
else:
s_display = '{:0.2f} %'.format(s_display)
output.append('{p_num}{s_color}{s_display:>15}{CLEAR}'.format(
p_num = p_num,
s_color = get_status_color(source[p_num]['Status']),
s_display = s_display,
**COLORS))
# Add line-endings
output = ['{}\n'.format(line) for line in output]
with open(source['Progress Out'], 'w') as f:
f.writelines(output)
if __name__ == '__main__':
print("This file is not meant to be called directly.")
# vim: sts=4 sw=4 ts=4