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#!/usr/bin/env bash
# Copyright (c) 2016 Egor Tensin <egor@tensin.name>
# This file is part of the "linux-home" project.
# For details, see https://github.com/egor-tensin/linux-home.
# Distributed under the MIT License.
_os=''
_CYGWIN='Cygwin'
_MACOS='macOS'
_UBUNTU='Ubuntu'
_DEBIAN='Debian GNU/Linux'
_MINT='Linux Mint'
_ARCH='Arch Linux'
_ARCH_ARM='Arch Linux ARM'
_FEDORA='Fedora'
os_detect() {
case "$OSTYPE" in
cygwin)
_os="$_CYGWIN"
return 0
;;
darwin*)
_os="$_MACOS"
return 0
;;
linux-gnu*)
if [ -r /etc/os-release ] && _os="$( . /etc/os-release && echo "$NAME" )"; then
case "$_os" in
"$_UBUNTU"|"$_DEBIAN"|"$_MINT"|"$_ARCH"|"$_ARCH_ARM"|"$_FEDORA")
return 0
;;
*)
_os=''
return 1
;;
esac
fi
;;
*)
return 1
;;
esac
}
os_detect
os_detected() { test -n "$_os" ; }
os_is_cygwin() { test "$_os" == "$_CYGWIN" ; }
os_is_macos() { test "$_os" == "$_MACOS" ; }
os_is_ubuntu() { test "$_os" == "$_UBUNTU" ; }
os_is_debian() { test "$_os" == "$_DEBIAN" ; }
os_is_mint() { test "$_os" == "$_MINT" ; }
os_is_arch() { test "$_os" == "$_ARCH" -o "$_os" == "$_ARCH_ARM" ; }
os_is_fedora() { test "$_os" == "$_FEDORA" ; }
os_is_ubuntu_like() { os_is_ubuntu || os_is_debian || os_is_mint ; }
os_is_linux() { os_is_ubuntu_like || os_is_arch || os_is_fedora ; }
# Cygwin
pkg_list_cygwin() (
set -o errexit -o nounset -o pipefail
shopt -s inherit_errexit 2> /dev/null || true
cygcheck --check-setup --dump-only \
| tail -n +3 \
| cut -d ' ' -f 1
)
# Ubuntu-likes
setup_pkg_list_ubuntu() (
set -o errexit -o nounset -o pipefail
shopt -s inherit_errexit 2> /dev/null || true
local -r initial_status='/var/log/installer/initial-status.gz'
gzip --decompress --stdout -- "$initial_status" \
| sed --quiet -- 's/^Package: //p' \
| sort \
| uniq
)
user_pkg_list_ubuntu() (
set -o errexit -o nounset -o pipefail
shopt -s inherit_errexit 2> /dev/null || true
local manual
manual="$( apt-mark showmanual | sort | uniq )"
local setup
setup="$( setup_pkg_list_ubuntu )"
comm -23 <( echo "$manual" ) <( echo "$setup" )
)
pkg_list_ubuntu() (
set -o errexit -o nounset -o pipefail
shopt -s inherit_errexit 2> /dev/null || true
dpkg --get-selections \
| grep --invert-match -- 'deinstall$' \
| cut -f 1 \
| cut -d ':' -f 1
)
# Arch Linux
setup_pkg_list_arch() (
set -o errexit -o nounset -o pipefail
shopt -s inherit_errexit 2> /dev/null || true
# Assuming you only selected groups 'base and 'base-devel' during
# installation.
local -ra groups=(base base-devel)
pacman -Q --groups -q -- ${groups[@]+"${groups[@]}"} | sort
)
user_pkg_list_arch() (
set -o errexit -o nounset -o pipefail
shopt -s inherit_errexit 2> /dev/null || true
local manual
manual="$( pacman -Q --explicit -q | sort )"
local setup
setup="$( setup_pkg_list_arch )"
comm -23 <( echo "$manual" ) <( echo "$setup" )
)
manual_pkg_list_arch() (
set -o errexit -o nounset -o pipefail
shopt -s inherit_errexit 2> /dev/null || true
expac '%n %p' | grep 'Unknown Packager'
)
pkg_list_arch() {
pacman -Qq
}
# Fedora
pkg_list_fedora() (
set -o errexit -o nounset -o pipefail
shopt -s inherit_errexit 2> /dev/null || true
rpm --queryformat="%{NAME}\n" -qa | sort
)
# Generic routines
pkg_list() (
set -o errexit -o nounset -o pipefail
shopt -s inherit_errexit 2> /dev/null || true
if os_is_cygwin; then
pkg_list_cygwin
elif os_is_ubuntu_like; then
pkg_list_ubuntu
elif os_is_arch; then
pkg_list_arch
elif os_is_fedora; then
pkg_list_fedora
else
echo "${FUNCNAME[0]}: unsupported OS" >&2
return 1
fi
)
user_pkg_list() (
set -o errexit -o nounset -o pipefail
shopt -s inherit_errexit 2> /dev/null || true
if os_is_ubuntu_like; then
user_pkg_list_ubuntu
elif os_is_arch; then
user_pkg_list_arch
else
echo "${FUNCNAME[0]}: unsupported OS" >&2
return 1
fi
)
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