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#!/usr/bin/env bash
# Copyright (c) 2016 Egor Tensin <Egor.Tensin@gmail.com>
# This file is part of the "Linux/Cygwin environment" project.
# For details, see https://github.com/egor-tensin/linux-home.
# Distributed under the MIT License.
_os=''
_CYGWIN='Cygwin'
_UBUNTU='Ubuntu'
_MINT='Linux Mint'
_ARCH='Arch Linux'
_ARCH_ARM='Arch Linux ARM'
_FEDORA='Fedora'
os_detect() {
command -v uname > /dev/null \
&& [ "$( uname -o )" == "$_CYGWIN" ] \
&& _os="$_CYGWIN" \
&& return 0
[ -r /etc/os-release ] \
&& _os="$( . /etc/os-release && echo "$NAME" )" \
&& test "$_os" == "$_UBUNTU" \
-o "$_os" == "$_MINT" \
-o "$_os" == "$_ARCH" \
-o "$_os" == "$_ARCH_ARM" \
-o "$_os" == "$_FEDORA" \
&& return 0
_os=''
return 1
}
os_detect
os_detected() { test -n "$_os" ; }
os_is_cygwin() { test "$_os" == "$_CYGWIN" ; }
os_is_ubuntu() { test "$_os" == "$_UBUNTU" ; }
os_is_mint() { test "$_os" == "$_MINT" ; }
os_is_arch() { test "$_os" == "$_ARCH" -o "$_os" == "$_ARCH_ARM" ; }
os_is_fedora() { test "$_os" == "$_FEDORA" ; }
# Cygwin
pkg_list_cygwin() (
set -o errexit -o nounset -o pipefail
cygcheck --check-setup --dump-only \
| tail -n +3 \
| cut -d ' ' -f 1
)
# Ubuntu/Linux Mint
setup_pkg_list_ubuntu() (
set -o errexit -o nounset -o pipefail
local -r initial_status='/var/log/installer/initial-status.gz'
gzip --decompress --stdout -- "$initial_status" \
| sed --quiet -- 's/^Package: //p' \
| sort \
| uniq
)
user_pkg_list_ubuntu() (
set -o errexit -o nounset -o pipefail
comm -23 <( apt-mark showmanual | sort | uniq ) \
<( setup_pkg_list_ubuntu )
)
pkg_list_ubuntu() (
set -o errexit -o nounset -o pipefail
dpkg --get-selections \
| grep --invert-match -- 'deinstall$' \
| cut -f 1 \
| cut -d ':' -f 1
)
# Arch Linux
setup_pkg_list_arch() (
set -o errexit -o nounset -o pipefail
# 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
comm -23 <( pacman -Q --explicit -q | sort ) \
<( setup_pkg_list_arch )
)
pkg_list_arch() {
pacman -Qq
}
# Fedora
pkg_list_fedora() (
set -o errexit -o nounset -o pipefail
rpm --queryformat="%{NAME}\n" -qa | sort
)
# Generic routines
pkg_list() (
set -o errexit -o nounset -o pipefail
if os_is_cygwin; then
pkg_list_cygwin
elif os_is_ubuntu || os_is_mint; 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
)
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