shimboot/common.sh

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#!/bin/bash
set -e
if [ "$DEBUG" ]; then
set -x
export DEBUG=1
fi
check_deps() {
local needed_commands="$1"
for command in $needed_commands; do
if ! command -v $command &> /dev/null; then
echo " - $command"
fi
done
}
assert_deps() {
local needed_commands="$1"
local missing_commands=$(check_deps "$needed_commands")
if [ "${missing_commands}" ]; then
echo "You are missing dependencies needed for this script."
echo "Commands needed:"
echo "${missing_commands}"
exit 1
fi
}
parse_args() {
declare -g -A args
for argument in "$@"; do
local key=$(echo $argument | cut -f1 -d=)
local key_length=${#key}
local value="${argument:$key_length+1}"
args["$key"]="$value"
done
}
assert_root() {
if [ "$EUID" -ne 0 ]; then
echo "this needs to be run as root."
exit 1
fi
}
assert_args() {
if [ -z "$1" ]; then
print_help
exit 1
fi
}