nixpkgs/pkgs/development/pharo/wrapper/pharo-vm.sh

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#!/bin/sh
# This is based on the script by David T. Lewis posted here:
# http://lists.squeakfoundation.org/pipermail/vm-dev/2017-April/024836.html
#
# VM run utility script
# usage: run <myimage>
#
# Select a VM and run an image based on the image format number
PATH=$PATH:@file@/bin
# Search for the image filename in the command line arguments
for arg in $* $SQUEAK_IMAGE; do
case ${arg} in
-*) # ignore
;;
*) # either an option argument or the image name
if test -e ${arg}; then
magic=$(file -L -b -m @magic@ "$arg")
case "$magic" in
"Smalltalk image V3 32b"*)
image=${arg}
vm=@cog32@/bin/pharo-cog
;;
"Smalltalk image Spur 32b"*)
image=${arg}
vm=@spur32@/bin/pharo-spur
;;
"Smalltalk image Spur 64b"*)
if [ "@spur64vm@" == "none" ]; then
echo "error: detected 64-bit image but 64-bit VM is not available" >&2
exit 1
fi
image=${arg}
vm=@spur64@/bin/pharo-spur64
;;
esac
fi
;;
esac
done
# Print a message to explain our DWIM'ery.
if [ -n "$image" ]; then
echo "using VM selected by image type."
echo " image: $image"
echo " type: $magic"
echo " vm: $vm"
else
echo "using default vm; image type not detected"
vm=@cog32@/bin/pharo-cog
fi
# Run the VM
set -f
exec -- ${vm} $@