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|
#!/usr/bin/env zsh
#
# Copyright (C) 2024-2026 Maria Lisina
# Copyright (C) 2024-2026 Danil Lisin
# SPDX-License-Identifier: Apache-2.0
if [[ "${__aliases_env}" != "0" ]]
then
env -i PATH="${PATH}" __aliases_env=0 "${0}" ${@}
exit ${?}
fi
exec 2> /dev/null
set -e
umask 77
dir="${0%/*}"
files="${dir}/files"
list="${files}/aliases.txt"
if [[ -n "${1}" ]]
then
action="${1}"
case "${action}" in
(help)
help=0
;;
(list | add | del | reset)
;;
(*)
echo "Unrecognized action ${action}" \
"\nSee '${0} help'"
exit 1
;;
esac
shift
else
help=0
fi
if [[ -n "${help}" ]]
then
echo "Aliases Manager" \
"\n\nUsage: ${0} [action] [ID] [alias ID]" \
"\n\nActions:" \
"\n help\t\tShow help information" \
"\n list\t\tList all aliases" \
"\n add\t\tAdd user ID alias" \
"\n del\t\tRemove user ID alias" \
"\n reset\t\tRemove all aliases"
exit 0
fi
for module in zsh/files
do
if ! zmodload ${module}
then
failed="${failed} ${module}"
fi
done
if [[ -n "${failed}" ]]
then
echo "Failed to load Z Shell modules:${failed}" \
"\nUpdate your Z Shell or get a version with all required modules"
exit 1
fi
for required in busybox
do
if ! command -v ${required} > /dev/null
then
missing="${missing} ${required}"
fi
done
if [[ -n "${missing}" ]]
then
echo "Missing dependencies:${missing}" \
"\nFor more information follow: https://command-not-found.com/"
exit 1
fi
for function in grep sed
do
if busybox ${function} --help > /dev/null
then
alias ${function}="busybox ${function}"
else
missing="${missing} ${function}"
fi
done
if [[ -n "${missing}" ]]
then
echo "Missing BusyBox functions:${missing}" \
"\nUpdate your BusyBox or get a version with all required functions"
exit 1
fi
case "${action}" in
(add | del)
if [[ -n "${1}" ]]
then
user_id="${1}"
if ! test ${user_id} -gt 0
then
echo "Illegal user ID ${user_id}"
exit 1
fi
shift
else
echo "You must specify target user ID" \
"\nSee '${0} help'"
exit 1
fi
;;
esac
if ! [[ -f "${list}" ]]
then
< "${list}.default" > "${list}"
fi
case "${action}" in
(list)
list=($(< "${list}"))
while [[ ${#list} -ge 2 ]]
do
printf "%s --> %s\n" "${list[1]}" "${list[2]}"
shift 2 list
done
;;
(add)
if [[ -n "${1}" ]]
then
alias_id="${1}"
if ! test ${alias_id} -gt 0
then
echo "Illegal user ID ${alias_id}"
exit 1
fi
shift
else
echo "You must specify alias ID" \
"\nSee '${0} help'"
exit 1
fi
if alias="$(grep -x "${user_id} .*" "${list}")"
then
alias_id="$(cut -d ' ' -f 2 <<< "${alias}")"
echo "User ID ${user_id} is already aliased to ${alias_id}"
exit 1
fi
printf "%s %s\n" "${user_id}" "${alias_id}" >> "${list}"
;;
(del)
sed -i "/^${user_id} .*$/d" "${list}"
;;
(reset)
< "${list}.default" > "${list}"
;;
esac
|
