4 Commits

7 changed files with 188 additions and 42 deletions

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@ -1,4 +1,3 @@
# File for excluding block devices from being written to
# Write one device per line, shell-style globs are accepted i.e. /dev/sda*
# Brace expansion is not supported
# One rule per line, regular expressions are accepted i.e. /dev/sda[0-9]?
# Lines beginning with "#" and ";" are ignored

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@ -2,7 +2,7 @@
"""Wrapper script for using dd to write to a USB drive."""
import argparse
import glob
import os
import pathlib
import re
import subprocess
@ -11,6 +11,10 @@ import subprocess
COMMENT_PATTERN = "^[#;]"
EXCLUDE_FILE = "/etc/helper-scripts/ddusb-exclude.conf"
E_BLOCKDEVICE_ERROR = 1
E_EXCLUDE_ERROR = 2
E_DD_ERROR = 3
# ========== Functions ==========
def read_exclude_file(exclude_file):
@ -33,23 +37,6 @@ def read_exclude_file(exclude_file):
return lines
def expand_globs(*globs):
"""For each glob given, expand these globs and return a list
containing each glob expanded.
:param globs: patterns to expand
:type globs: str
:returns: all expanded globs aggregated together
:rtype: list
"""
expanded_globs = []
for line in globs:
expanded_globs.extend(glob.glob(line, recursive=True))
return expanded_globs
# ========== Main Script ==========
parser = argparse.ArgumentParser()
parser.add_argument("-b", "--bs", default=512, help="block size", metavar="bs")
@ -59,23 +46,23 @@ args = parser.parse_args()
block_size = args.bs
input_file = args.input_file
block_device = args.output_file
block_path = args.output_file
# Ensure that block_device is really a block device
if not pathlib.Path(block_device).is_block_device():
print(f'Error: "{block_device}" is not a block device')
exit(1)
# Ensure that block_path is really a block device
if not pathlib.Path(block_path).is_block_device():
print(f'Error: "{block_path}" is not a block device')
exit(E_BLOCKDEVICE_ERROR)
# Check if block_device is excluded
# Check if block_path is excluded
exclude_patterns = read_exclude_file(EXCLUDE_FILE)
device_blacklist = expand_globs(*exclude_patterns)
if block_device in device_blacklist:
print(f'Error: "{block_device}" is blacklisted from running dd')
exit(2)
for pattern in exclude_patterns:
if re.fullmatch(pattern, block_path):
print(f'Error: "{block_path}" is blacklisted from running dd')
exit(E_EXCLUDE_ERROR)
print(f"Input file: {input_file}")
print(f"Block device: {block_device}")
print(f"Block device: {block_path}")
print(f"Block size: {block_size}")
try:
@ -83,13 +70,13 @@ try:
[
"dd",
f"if={input_file}",
f"of={block_device}",
f"of={block_path}",
f"bs={block_size}",
"status=progress",
],
check=True,
)
except subprocess.CalledProcessError:
exit(3)
exit(E_DD_ERROR)
else:
subprocess.run("sync")
os.sync()

157
quickdel.py Normal file
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@ -0,0 +1,157 @@
#!/usr/bin/python3
"""
quickdel - delete any file matching a query
Dependencies
============
* fd
* python-termcolor
Command-Line Arguments
======================
* -d, --directories-only
* -D, --directory TODO: implement this
* -e, --empty-only
* -E, --extension
* -f, --files-only
* -i, --no-ignore
* -I, --no-ignore-vcs
* -l, --links-only
"""
import argparse
import os
import os.path
import re
import subprocess
from termcolor import colored
# ========== Constants ==========
FD_BIN = "/usr/bin/fd"
FD_OPTS = []
# Matches 'y' or 'yes' only, ignoring case
USER_RESPONSE_YES = "^[Yy]{1}([Ee]{1}[Ss]{1})?$"
E_USER_RESPONSE_NO = 1
E_INPUT_INTERRUPTED = 2
# ========== Functions ==========
def color_file(filename):
"""Return correct color code for filetype of filename.
Example
-------
>>> color_file('Test File', 'red')
'\x1b[31mTest String\x1b[0m'
:param filename: file to determine color output for
:type filename: str
:return: filename with ANSII escape codes for color
:rtype: str
"""
if os.path.isdir(filename):
return colored(filename, "blue")
elif os.path.islink(filename):
return colored(filename, "green")
else:
return filename
# ========== Main Script ==========
if __name__ == "__main__":
parser = argparse.ArgumentParser()
parser.add_argument(
"-d",
"--directories-only",
action="store_const",
const=["--type", "directories"],
dest="fd_extra_opts",
help="filter results to directories",
)
parser.add_argument(
"-e",
"--empty-only",
action="store_const",
const=["--type", "empty"],
dest="fd_extra_opts",
help="filter results to empty files and directories",
)
parser.add_argument(
"-E",
"--extension",
action="append",
dest="extensions",
help="file extension",
metavar='ext',
)
parser.add_argument(
"-f",
"--files-only",
action="store_const",
const=["--type", "file"],
dest="fd_extra_opts",
help="filter results to files",
)
parser.add_argument(
"-I",
"--no-ignore-vcs",
action="store_const",
const="--no-ignore-vcs",
dest="fd_extra_opts",
help="do not ignore .gitignore",
)
parser.add_argument(
"-i",
"--no-ignore",
action="store_const",
const="--no-ignore",
dest="fd_extra_opts",
help="do not ignore .gitignore and .fdignore",
)
parser.add_argument(
"-l",
"--links-only",
action="store_const",
const=["--type", "symlink"],
dest="fd_extra_opts",
help="filter results to symlinks",
)
parser.add_argument("patterns", nargs="+", help="file matching patterns")
args = parser.parse_args()
if args.fd_extra_opts is not None:
FD_OPTS.extend(args.fd_extra_opts)
if args.extensions is not None:
for ext in args.extensions:
FD_OPTS.extend(["--extension", ext])
files = []
for pattern in args.patterns:
cmd = [FD_BIN, *FD_OPTS, pattern]
files.extend(
subprocess.run(
cmd, capture_output=True, text=True
).stdout.splitlines()
)
files.sort()
# Pretty print all filenames
for index, filename in enumerate([color_file(f) for f in files], 1):
print(f"{index}. {filename}")
try:
user_response = input("Would you like to delete these files? ")
except KeyboardInterrupt:
exit(E_INPUT_INTERRUPTED)
if re.match(USER_RESPONSE_YES, user_response) is None:
print("Operation cancelled")
exit(E_USER_RESPONSE_NO)
for f in files:
os.remove(f)
print("All files deleted")

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@ -1,7 +1,6 @@
#compdef ddusb
# zsh completions for 'ddusb'
# automatically generated with http://github.com/RobSis/zsh-completion-generator
local arguments
arguments=(

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@ -2,12 +2,11 @@
local arguments
arguments=(
$argument_list
{-h, --help}'[show this help message and exit]'
{-b, --boot}'[edit a file in /boot]'
{-d, --dir}'[edit a file in a given directory]'
{-E, --etc}'[edit a file in /etc]'
{-e, --editor}'[use a given editor]'
{-h,--help}'[show this help message and exit]'
{-b,--boot}'[edit a file in /boot]'
{-d,--dir}'[edit a file in a given directory]'
{-E,--etc}'[edit a file in /etc]'
{-e,--editor}'[use a given editor]'
'*:filename:_files'
)

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@ -4,11 +4,16 @@
local arguments
arguments=(
{-d,--directories-only}'[only delete directories]'
{-d,--directories-only}'[filter results to directories]'
{-e,--empty-only}'[filter results to empty files and directories]'
{-f,--files-only}'[filter results to files]'
{-E,--extension}'[file extension]'
{-h,--help}'[print this help page]'
{-i,--no-ignore}'[do not ignore .gitignore and .fdignore]'
{-I,--no-ignore-vcs}'[do not ignore .gitignore]'
{-l,--links-only}'[filter results to symlinks]'
'*:filename:_files'
)
_arguments -s $arguments