added lib/utils.sh and reorganised some files according to it

lib/utils.sh

@@ -0,0 +1,46 @@
+# ------------------------------------------------------------------------------
+# Various utilitary functions
+# This file is part of the init.sh project
+# Copyright (c) 2019-2021 Geoffray Levasseur <fatalerrors@geoffray-levasseur.org>
+# ------------------------------------------------------------------------------
+# This file is distributed under 3-clause BSD license.
+# The complete license agreement can be obtained at:
+# https://opensource.org/licenses/BSD-3-Clause
+# ------------------------------------------------------------------------------
+
+
+# ------------------------------------------------------------------------------
+# Check if a function exists, return 0 if so
+function_exists() {
+    declare -f -F $1 > /dev/null
+    return $?
+}
+
+
+# ------------------------------------------------------------------------------
+# Get module name from module file
+get_mod_name()
+{
+    if [[ $# -ne 1 ]]; then
+        prnt E "get_mod_name(): Bad number of parameters."
+        die 11 --force
+    fi
+    echo $(basename $1 | cut -f 1 -d '.')
+}
+export -f get_mod_name
+
+
+# ------------------------------------------------------------------------------
+# Set system proxy vars
+set_system_proxy()
+{
+    # Declare proxy system vars if needed and if not already declared
+    if [[ -n $PROXYSRV && -n $PROXYSRVPORT && -z $NO_PROXY ]]; then
+        export http_proxy=${http_proxy:-"http://$PROXYSRV:$PROXYSRVPORT/"}
+        export https_proxy=${https_proxy:-"http://$PROXYSRV:$PROXYSRVPORT/"}
+    fi
+}
+export -f set_system_proxy
+
+
+# EOF