File: set_loglevel

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autoload -Uz log_debug log_error

local -r _usage="Usage: %B${0}%b <loglevel>

Set log level, following levels are supported: 0 (quiet), 1 (normal), 2 (verbose), 3 (debug)"

if (( ! # )); then
  log_error 'Called without arguments.'
  log_output ${_usage}
  return 2
elif (( ${1} >= 4 )); then
  log_error 'Called with loglevel > 3.'
  log_output ${_usage}
fi

typeset -g -i -r _loglevel=${1}
log_debug "Log level set to '${1}'"