mirror of
https://github.com/89luca89/distrobox.git
synced 2026-08-19 01:14:49 -05:00
144 lines
3.5 KiB
Bash
Executable File
144 lines
3.5 KiB
Bash
Executable File
#!/bin/sh
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# SPDX-License-Identifier: GPL-3.0-only
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#
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# This file is part of the distrobox project:
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# https://github.com/89luca89/distrobox
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#
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# Copyright (C) 2022 distrobox contributors
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#
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# distrobox is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License version 3
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# as published by the Free Software Foundation.
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#
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# distrobox is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with distrobox; if not, see <http://www.gnu.org/licenses/>.
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trap '[ "$?" -ne 0 ] && printf "\nAn error occurred\n"' EXIT
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# Defaults
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distrobox_host_exec_default_command="/bin/sh"
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verbose=0
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version="1.2.16"
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# Print usage to stdout.
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# Arguments:
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# None
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# Outputs:
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# print usage with examples.
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show_help() {
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cat << EOF
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distrobox version: ${version}
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Usage:
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distrobox-host-exec [command [arguments]]
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distrobox-host-exec ls
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distrobox-host-exec bash -l
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distrobox-host-exec flatpak run org.mozilla.firefox
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distrobox-host-exec podman ps -a
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Options:
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--help/-h: show this message
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--verbose/-v: show more verbosity
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--version/-V: show version
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EOF
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}
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# Parse arguments
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while :; do
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case $1 in
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-h | --help)
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# Call a "show_help" function to display a synopsis, then exit.
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show_help
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exit 0
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;;
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-v | --verbose)
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verbose=1
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shift
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;;
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-V | --version)
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printf "distrobox: %s\n" "${version}"
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exit 0
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;;
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--) # End of all options.
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shift
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;;
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-*) # Invalid options.
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printf >&2 "ERROR: Invalid flag '%s'\n\n" "$1"
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show_help
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exit 1
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;;
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*)
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command=${distrobox_host_exec_default_command}
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if [ -n "$1" ]; then
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command=$1
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shift
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fi
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break
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;;
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esac
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done
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set -o errexit
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set -o nounset
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# set verbosity
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if [ "${verbose}" -ne 0 ]; then
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set -o xtrace
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fi
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# Check we're running inside a container and not on the host
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if [ ! -f /run/.containerenv ] && [ ! -f /.dockerenv ]; then
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printf >&2 "You must run %s inside a container!\n" " $(basename "$0")"
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exit 126
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fi
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mode=flatpak
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result_command="flatpak-spawn --host --forward-fd=1 --forward-fd=2 "
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if ! command -v flatpak-spawn > /dev/null; then
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printf "WARNING: flatpak-spawn not found!\n"
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printf "We recommend installing it and then trying distrobox-host-exec again.\n\n"
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printf "Alternatively, we can try an different (chroot-based) approach, but please\n"
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printf "be aware that it has severe limitations and some commands will not work!\n\n"
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printf "Do you really want to continue without installing flatpak-spawn? [N/y] "
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read -r response
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response=${response:-"N"}
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# Accept only y,Y,Yes,yes,n,N,No,no.
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case "${response}" in
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y | Y | Yes | yes | YES)
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mode=chroot
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result_command="sudo -E chroot --userspec=$(id -u):$(id -g) /run/host/ /usr/bin/env "
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;;
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n | N | No | no | NO)
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printf "Good choice! Go get flatpak-spawn.\n"
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exit 0
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;;
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*) # Default case: If no more options then break out of the loop.
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printf >&2 "Invalid input.\n"
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printf >&2 "The available choices are: y,Y,Yes,yes,YES or n,N,No,no,NO.\nExiting.\n"
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exit 1
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;;
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esac
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fi
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# Let's also pass back the environment
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for i in $(printenv | grep "=" | grep -Ev ' |"' | grep -Ev "^(_)"); do
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if [ "${mode}" = "chroot" ]; then
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result_command="${result_command} ${i}"
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else
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result_command="${result_command} --env=${i} "
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fi
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done
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# Eval the generated command.
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exec ${result_command} sh -c " cd ${PWD} && ${command} $* "
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