setenv

#!/usr/bin/env -S sh -c "echo >&2 \"Error: You are running this script instead of sourcing it. Make sure to use it as 'source setenv' or '. setenv', otherwise its settings won't take effect.\"; exit 1"

# first argument can be (e.g. 'source setenv -q'):
# -q : do not show banner text on configuration success
# -r : remove an already configured environment

# Get the directory where this script reside using a trick (works differently on bash and zsh)
# On bash, the current script's name is in 'BASH_SOURCE[0]'
if [ "$BASH_VERSION" != "" ]; then # for BASH
  dir=$(cd $(dirname ${BASH_SOURCE[0]}) && pwd)
elif [ "$ZSH_VERSION" != "" ]; then # on zsh the script name is in '$0'
  dir=$(cd $(dirname $0) && pwd)
else # on any other SH compatible shell we assume that the current working directory is the OMNeT++ root directory
  dir=$(pwd)
fi

# check if dir is really pointing to an omnet++ installation dir
if [ ! -f $dir/configure.user -o ! -f $dir/include/omnetpp.h -o ! -f $dir/Version ]; then
    echo "Error: '$dir' does not look like an OMNeT++ root directory"
    return 1
fi

# remove previous environment to prevent the accumulation of path elements
if [ -n "$__omnetpp_root_dir" ]; then
  if [ "$1" = "-r" ]; then
    echo "Removed previous environment for '$__omnetpp_root_dir'."
    dir=
  else
    echo "Warning: overwriting previous environment for '$__omnetpp_root_dir'."
  fi
  export PATH=${PATH#$__omnetpp_root_dir/bin:}
  export PYTHONPATH=${PYTHONPATH#$__omnetpp_root_dir/python}
  export __omnetpp_root_dir=
  export OMNETPP_RELEASE=
  export QT_SELECT=
  export QT_LOGGING_RULES=
fi

# do not continue if removal was requested
if [ "$1" = "-r" ]; then
    return 0
fi

# macOS specific settings
if [ $(uname) = "Darwin" ]; then
  if [ $(arch) = "arm64" ]; then
    if [ -d $dir/tools/macos.x86_64 ]; then
      echo "NOTE: We are running on Apple Silicon, but you have downloaded the x86_64 version of the installation package!"
      echo "Turning on x86_64 emulation by starting a new shell with 'arch -x86_64 /bin/zsh -i' ..."
      export dir; arch -x86_64 /bin/zsh -c 'source $dir/setenv; zsh -i'
      return 1
    elif [ -d $dir/tools/macos.aarch64 ]; then
      TOOLS_DIR=$dir/tools/macos.aarch64
    else
      echo "Error: We are running on macOS aarch64, but you seem to have downloaded the Linux or Windows version of the installation package!"
      return 1
    fi
  else
    if [ -d $dir/tools/macos.aarch64 ]; then
      echo "Error: We are running on macOS x86_64, but you have downloaded the AARCH64 version of the installation package!"
      echo "Please download and install the x86_64 compatible package."
      return 1
    elif [ -d $dir/tools/macos.x86_64 ]; then
      TOOLS_DIR=$dir/tools/macos.x86_64
    else
      echo "Error: We are running on macOS x86_64, but you seem to have downloaded the Linux or Windows version of the installation package!"
      return 1
    fi
  fi

  # setup macOS specific variables
  export PATH=$TOOLS_DIR/bin:$PATH
  export PIP_PREFIX=$TOOLS_DIR/lib/Python.framework/Versions/Current
  export PYTHONNOUSERSITE=1
  export BISON_PKGDATADIR=$TOOLS_DIR/share/bison
  export QT_PLUGIN_PATH=$TOOLS_DIR/plugins
  TOOLS_DIR=
fi

# Windows/MinGW specifiy settings
if [ "$MSYSTEM" = "MINGW64" ] ; then
  if [ "$VCToolsInstallDir" = "" ] ; then
    export PATH="/opt/mingw64/bin:$PATH"
  else
    export PATH="/opt/visualc/bin:$(cygpath "$VCToolsInstallDir/bin/HostX64/x64"):$PATH"
  fi
fi

export PATH=$dir/bin:$PATH
export PYTHONPATH=$dir/python:$PYTHONPATH && PYTHONPATH=${PYTHONPATH%:}  # required because colon at the end causes issues on Windows
export HOSTNAME
export HOST
export QT_SELECT=5 # on systems with qtchooser, switch to Qt5
export QT_LOGGING_RULES='*.debug=false;qt.qpa.*=false' # disable some qt logging

export OMNETPP_RELEASE=$(cat $dir/Version)
export __omnetpp_root_dir=$dir
dir=

if [ "$1" != "-q" ]; then
  echo "Environment for '$OMNETPP_RELEASE' in directory '$__omnetpp_root_dir' is ready."

  if [ ! -f $__omnetpp_root_dir/Makefile.inc ]; then
  cat <<__END__

Type "./configure" and "make" to build the simulation libraries.
When done, type "omnetpp" to start the IDE.
__END__
  fi
fi

# source user specific script if present
if [ -f "$__omnetpp_root_dir/setenv_local" ] ; then
  source $__omnetpp_root_dir/setenv_local
fi