the-book-of-secret-knowledge/_tmp/install

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#!/usr/bin/env bash
### BEG SCRIPT INFO
#
# Header:
#
# fname : "awesome-ninja-admins"
# cdate : "24.05.2018"
# author : "Michał Żurawski <trimstray@gmail.com>"
# tab_size : "2"
# soft_tabs : "yes"
#
# Description:
#
# See README.md file for more information.
#
# License:
#
# awesome-ninja-admins, Copyright (C) 2018 Michał Żurawski
#
# 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/>.
#
### END SCRIPT INFO
# The array that store call parameters.
# shellcheck disable=SC2034
__init_params=()
__script_params=("$@")
# Store the name of the script and directory call.
readonly _init_name="$(basename "$0")"
readonly _init_directory="$(dirname "$(readlink -f "$0")")"
# Set root directory.
readonly _rel="${_init_directory}"
# Directory structure.
# shellcheck disable=SC2154
readonly _src="${_rel}/src"
readonly _lib="${_rel}/lib"
readonly _cfg="${_rel}/etc"
# shellcheck disable=SC1090,SC1091
source "${_src}/settings"
# shellcheck disable=SC1090
source "${_src}/helpers"
################################################################################
######################### Main function (script init) ##########################
################################################################################
function __main__() {
local _FUNCTION_ID="__main__"
local _STATE="0"
# Stores the current date.
readonly _cdate=$(date +%Y%m%d)
# External configuration file (-c|--config script param).
config=""
load_state="0"
# Declaration of output variables (--debug and --verbose params).
stdout_mode=""
printf_mode=""
# Enable/disable output colors.
# shellcheck disable=SC2034
s_color="true"
# We place here used commands at script runtime, as strings to anything
# unnecessarily run.
readonly commands=("basename" "dirname" "stat" "date" "grep" "egrep" "cut" \
"sed" "gzip" "tar")
# If you intend to specify the full path to the command we do it like:
# readonly exec_gzip="/bin/gzip"
# Stores the names of the missing commands.
missing_hash=()
missing_counter="0"
for i in "${commands[@]}" ; do
if [[ ! -z "$i" ]] ; then
hash "$i" >/dev/null 2>&1 ; state="$?"
# If the command was not found put it in the array
if [[ "$state" -ne 0 ]] ; then
missing_hash+=("$i")
((missing_counter++))
fi
fi
done
# It is a good idea to terminate the script at this stage
# with information for the user to fix the errors if at least one
# of the required commands in the commands array is not found.
if [[ "$missing_counter" -gt 0 ]] ; then
printf "not found in PATH: %s\\n" "${missing_hash[*]}" >&2
exit 1
fi
# Specifies the call parameters of the script, the exact description
# can be found in _help_ and file README.md.
local _short_opt=""
local _long_opt="help"
_GETOPT_PARAMS=$(getopt -o "${_short_opt}" --long "${_long_opt}" \
-n "${_init_name}" -- "${__script_params[@]}")
# With this structure, in the case of problems with the parameters placed
# in the _GETOPT_PARAMS variable we finish the script. Keep this in mind
# because it has some consequences - the __main __() function will not be
# executed.
# Ends an error if the parameter or its argument is not valid.
_getopt_state="$?"
if [ "$_getopt_state" != 0 ] ; then
exit 1
fi
eval set -- "$_GETOPT_PARAMS"
while true ; do
case $1 in
--help)
_help_
shift ; exit 0 ;;
*)
if [[ "$2" == "-" ]] || [[ ! -z "$2" ]] ; then
printf "%s: invalid option -- '%s'\\n" "$_init_name" "$2"
exit 1
# elif [[ -z "$2" ]] ; then break ; fi
else break ; fi
;;
esac
done
################################# USER SPACE #################################
# ````````````````````````````````````````````````````````````````````````````
# Put here all your variable declarations, function calls
# and all the other code blocks.
# In this section we add external file (for -c|--config script param).
if [[ "$load_state" -eq 1 ]] ; then _load "head" "$config" ; fi
# shellcheck disable=SC2034
# Generate random value.
_random=$(date +"%s")
local _user
_user=$(whoami)
_sprintf "head" "Awesome-Ninja-Admins"
_sprintf "info" "tasks:"
_init_skel
echo
# ````````````````````````````````````````````````````````````````````````````
return "$_STATE"
}
# We pass arguments to the __main__ function.
# It is required if you want to run on arguments type $1, $2, ...
__main__ "${__script_params[@]}"
exit 0