aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/%HOME%/.bash_utils/os.sh
blob: 9058b38ce9182464e9835f4490095009b36efcac (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
#!/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'
_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 "$_os" == "$_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"   ; }
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 "${FUNCTION[0]}: unsupported OS" >&2
        return 1
    fi
)