diff options
| -rwxr-xr-x | build | 28 |
1 files changed, 28 insertions, 0 deletions
@@ -19,6 +19,34 @@ error() { echo "error: $*" >&2; } # display the supplied <message> and exit with an error die() { error "$*"; exit 1; } +## simple_usage <cmd> <summary> +# A simplified usage interface for commands with no option arguments. +simple_usage() +{ + cmd="${1}" + summary="${2}" + shift 2 + + if test "$#" -eq '0'; then + error "no arguments to command" + echo "try 'build ${cmd} --help'" >&2 + exit 1 + fi + + while test "$#" -gt '0'; do + case "${1}" in + (-h|-help|--help) + echo "usage: build ${cmd} ${summary}" 2>&1 + exit 0;; + (--) shift; break;; + (-*) error "unknown option '${1}'" + echo "try 'build ${cmd} --help'" >&2 + exit 1;; + (*) break;; + esac + done +} + ## mkenv # prepare the environment structure for the current package mkenv() |