[WIP] Added wireguard, prepare to test and debug

client/scripts/commons.sh

@@ -0,0 +1,51 @@
+#!/bin/bash
+
+printv() {
+  if [ -t 1 ]; then
+    NCOLORS=$(tput colors)
+
+    if test -n "$NCOLORS" && test "$NCOLORS" -ge 8; then
+      NORMAL="$(tput sgr0)"
+      RED="$(tput setaf 1)"
+      GREEN="$(tput setaf 2)"
+      YELLOW="$(tput setaf 3)"
+    fi
+  fi
+
+  if [[ $2 = 'G' ]]; then
+    # shellcheck disable=SC2086
+    echo $1 -e "${GREEN}$3${NORMAL}"
+  elif [[ $2 = 'Y' ]]; then
+    # shellcheck disable=SC2086
+    echo $1 -e "${YELLOW}$3${NORMAL}"
+  elif [[ $2 = 'N' ]]; then
+    # shellcheck disable=SC2086
+    echo $1 -e "$3"
+  else
+    # shellcheck disable=SC2086
+    echo $1 -e "${RED}$3${NORMAL}"
+  fi
+}
+
+print() {
+  printv '' "$1" "$2"
+}
+
+printn() {
+  printv "-n" "$1" "$2"
+}
+
+error() {
+  printv '' R "$1"
+}
+
+die() {
+  if [[ "$1" ]]; then
+    error "$1"
+  else
+    error Failed
+  fi
+
+  exit 1
+}
+