bin/sde

   1 #!/bin/sh
   2 # --- SDE-COPYRIGHT-NOTE-BEGIN ---
   3 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
   4 #
   5 # Filename: bin/sde
   6 # Copyright (C) 2006 - 2008 The OpenSDE Project
   7 #
   8 # More information can be found in the files COPYING and README.
   9 #
  10 # This program is free software; you can redistribute it and/or modify
  11 # it under the terms of the GNU General Public License as published by
  12 # the Free Software Foundation; version 2 of the License. A copy of the
  13 # GNU General Public License can be found in the file COPYING.
  14 # --- SDE-COPYRIGHT-NOTE-END ---
  15
  16 set -e
  17
  18 # stand-alone simplified minimal functions
  19 #
  20 echo_info() {
  21         echo "-> $@" >&2
  22 }
  23
  24 echo_abort() {
  25         local errno="$1"; shift
  26         echo -e "!> ERROR: $@" >&2
  27         exit "$errno"
  28 }
  29
  30 # Early checking of the system
  31 #
  32 [ -n "$( type -p readlink )" ] ||
  33         echo_abort 1 '`readlink` tool not found'
  34
  35 readlink -f /bin/sh 2>&1 > /dev/null
  36 [ $? -eq 0 ] ||
  37         echo_abort 1 '`readlink` doesnt support -f, please update it.'
  38
  39 # find libsde.in
  40 #
  41 if [ -z "$SDEROOT" ]; then
  42         # finding the root of the tree where we are stand
  43         #
  44         SDEROOT=$( pwd -P )
  45         while [ "$SDEROOT" -a ! -r "$SDEROOT/lib/libsde.in" ]; do
  46                 SDEROOT="${SDEROOT%/*}"
  47         done
  48 fi
  49
  50 # if libsde.in was not found, try a fallback
  51 #
  52 if [ ! -r "$SDEROOT/lib/libsde.in" ]; then
  53         SDEROOT="$( readlink -f "$0" )"; SDEROOT="${SDEROOT%/bin/sde}"
  54
  55         [ -r "$SDEROOT/lib/libsde.in" ] ||
  56                 echo_abort 1 'SDEROOT not found.'
  57 fi
  58
  59 # switching to the right sde wrapper (SDEROOT specific)
  60 #
  61 if [ "$( readlink -f "$0" )" != "$SDEROOT/bin/sde" ]; then
  62         if [ "$1" = "--loop" ]; then
  63                 echo_abort 2 'loop detected, abort.'
  64         else
  65                 exec "$SDEROOT/bin/sde" --loop "$@"
  66         fi
  67 elif [ "$1" = "--loop" ]; then
  68         shift
  69 fi
  70
  71 # load corresponding library for sh scripts
  72 #
  73 . "$SDEROOT/lib/libsde.in"
  74 . "$SDEROOT/lib/sde-wrapper-command.in"
  75
  76 if [ $# -eq 0 -o "$1" = "--help" ]; then
  77         sde_wrapper_command_help
  78 else
  79         command="$( sde_wrapper_command "$1" )"
  80         if [ -z "$command" ]; then
  81                 # unknown command
  82                 echo_error "Command '$COLOR_INFO$1$COLOR_NORMAL' not understood."
  83                 sde_wrapper_command_help
  84         else
  85                 shift;
  86
  87                 [ -x "$SDEROOT/bin/sde-$command" ] ||
  88                         echo_abort 2 "Can't execute '$COLOR_INFO$SDEROOT/bin/sde-$command$COLOR_NORMAL', sorry."
  89
  90                 exec "$SDEROOT/bin/sde-$command" "$@"
  91         fi
  92 fi
  93 exit 1