cg

   1 #!/usr/bin/env bash
   2 #
   3 # Wrapper for running Cogito commands.
   4 # Copyright (c) Petr Baudis, 2005
   5 #
   6 # Takes a variable number of arguments where the first argument should
   7 # either be a Cogito command or one of the supported options. If no
   8 # arguments are specified an overview of all the Cogito commands will be
   9 # shown.
  10 #
  11 # Enables all Cogito commands to be accessed as subcommands, for example
  12 # is:
  13 #
  14 #       cg help
  15 #       cg-help
  16 #
  17 # equivalent.
  18 #
  19 # OPTIONS
  20 # -------
  21 # --version:: Show the Cogito toolkit version
  22 #       Show the version of the Cogito toolkit. Equivalent to the output
  23 #       of `cg-version`.
  24
  25 USAGE="cg [--version | COMMAND [ARGS]...]"
  26
  27 cmd="$1"; shift
  28 case "$cmd" in
  29 -h|--help|"") cmd="help" ;;
  30 --version) cmd="version" ;;
  31 -*)
  32         echo "cg: unknown option '$cmd' (try 'cg --help' or 'cg --version')" >&2
  33         exit 1
  34 esac
  35
  36 exe="cg-$cmd"
  37
  38 # Cut'n'pasted from cg-Xlib
  39 save_IFS="$IFS"; IFS=:
  40 for dir in $PATH; do
  41         IFS="$save_IFS"
  42         exefile="$dir/$exe"
  43         [ -x "$exefile" ] && exec "$exefile" "$@"
  44 done
  45 IFS="$save_IFS"
  46
  47 echo "cg: unknown command '$cmd' (try 'cg help')" >&2
  48 exit 1