cusdeb-single-node/essentials.sh at master · tolstoyevsky/cusdeb-single-node · GitHub

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
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
# Copyright (C) 2018 Evgeny Golyshev <eugulixes@gmail.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

# shellcheck disable=SC2034
NODE_VER=12.18.3

# shellcheck disable=SC2034
PIP_VER=20.0.2

PYTHON_MAJOR_VER=3

PYTHON_MINOR_VER=7

text_in_red_color=$(tput setaf 1)

text_in_green_color=$(tput setaf 2)

text_in_yellow_color=$(tput setaf 3)

reset=$(tput sgr0)

# Prints the specified message with the level fatal.
# Globals:
#     None
# Arguments:
#     Message
# Returns:
#     None
fatal() {
    >&2 echo "${text_in_red_color}Fatal${reset}: ${*}"
}

# Prints the specified message with the level info.
# Globals:
#     None
# Arguments:
#     Message
# Returns:
#     None
info() {
    >&2 echo "${text_in_yellow_color}Info${reset}: ${*}"
}

# Prints the specified message with the level success.
# Globals:
#     None
# Arguments:
#     Message
# Returns:
#     None
success() {
    >&2 echo "${text_in_green_color}Success${reset}: ${*}"
}

# Checks if the current Python version is equal or greater than required.
# Globals:
#     PYTHON_MAJOR_VER
#     PYTHON_MINOR_VER
# Arguments:
#     None
# Returns:
#     Boolean
check_python_version() {
    local current_python_version=()

    IFS='.' read -ra current_python_version <<< "$(python3 -V | cut -d' ' -f2)"

    if (("${current_python_version[0]}" >= "${PYTHON_MAJOR_VER}")) && (("${current_python_version[1]}" >= "${PYTHON_MINOR_VER}")); then
        true
    else
        false
    fi
}

# Checks if the header files and a static library for Python are installed.
# Globals:
#     None
# Arguments:
#     None
# Returns:
#     Boolean
check_if_python_dev_is_installed() {
    local current_python_version=()

    IFS='.' read -ra current_python_version <<< "$(python3 -V | cut -d' ' -f2)"

    if pkg-config "python-${current_python_version[0]}.${current_python_version[1]}"; then
        true
    else
        false
    fi
}

exec_with_retries() {
    n=0
    until [ ${n} -ge 5 ]; do
        "$@" && break
        n=$((n + 1))
        info "retrying in 1 sec"
        sleep 1
    done
}

exec_cmd() {
    sudo -u "${USER}" env PATH="${PATH}" LD_LIBRARY_PATH="${LD_LIBRARY_PATH}" "$@"
}

get_absolute_path() {
    readlink -f "$1"
}

get_owner() {
    stat -c "%U" "$1"
}

is_empty_dir() {
    local dir=$1

    if [ -z "$(ls -A "${dir}")" ]; then
        true
    else
        false
    fi
}

is_port_in_use() {
    local port=$1

    if nc -w1 -z 127.0.0.1 "${port}"; then
	    true
    else
        false
    fi
}

prompt() {
    local text=$1

    read -p "${text} (y/n) " -n 1 -r
    echo
    if [[ "${REPLY}" =~ ^[Yy]$ ]]; then
        true
    else
        false
    fi
}