bash-functions

# -*- mode: shell-script; coding: utf-8 -*-
# Common bash functions for Git helper scripts

# Abort on tool error (errorcode <> 0)
# Unless variable "EXEC_DO_NO_ABORT_ON_ERROR=true" is set
function abort_on_error() {
    local err
    err=$1
    shift
    if [[ $err -ne 0 ]]; then
	   echo "Program execution failed with error code $err!"
	   if [[ "$EXEC_DO_NO_ABORT_ON_ERROR" != "true" ]]; then
	       exit 1
	   fi
    fi
}


# Execute this tool
# Caution: Use "\"text with spaces\"" to escape spaces
function exec_tool() {
   echo "$@"
   if [[ -z "${TESTMODE:-}" ]]; then
       eval "$@"
       abort_on_error $?
   fi
}

# Execute this tool after confirmation
# Caution: Use \"text with spaces\" to escape spaces
function exec_tool_confirm() {
   local go_on
   echo -n "Execute (y/N): $@ "
   read -n 1 go_on
   echo
   if [[ $go_on != "y" && $go_on != "Y" ]]; then
       echo "Abort as requested"
       exit
   fi

   if [[ -z "${TESTMODE:-}" ]]; then
       eval "$@"
       abort_on_error $?
   fi
}