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#!/bin/sh
# This program is free software: you can redistribute it and/or modify it under
# the terms of the GNU Affero General Public License as published by the Free
# Software Foundation, either version 3 of the License, or (at your option) any
# later version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
# details.
readonly wrapper_name="${0##*/}"
readonly wrapper_data="$HOME/.local/etc/cmd-wrapper/${0##*/}"
main() {
# Ensure there's a text file containing a list of potential binaries
if [ ! -f "$wrapper_data/bins.txt" ]
then
printf "No wrapper bins for %s (%s)\n" \
"$wrapper_name" \
"$wrapper_data/bins.txt" \
>&2
exit 1
fi
# Source a custom environment if one exists
if [ -f "$wrapper_data/env.sh" ]
then
#shellcheck disable=1090
. "$wrapper_data/env.sh"
fi
# Loop through all potential binaries
while read -r bin
do
# Check if this particular bin is available
[ -x "$bin" ] || continue
# Run the wrap_before command if specified
if command -V "wrap_before" 2>/dev/null | head -n 1 | grep -Eq "function$"
then
wrap_before
fi
# shellcheck disable=SC2093
wrap_cmd "$bin" "$@"
done < "$wrapper_data/bins.txt"
# No fitting binary found, show error
printf "None of the underlying executables for %s exist:\n" \
"$wrapper_name" >&2
while read -r bin
do
printf "\t%s\n" "$bin" >&2
done < "$wrapper_data/bins.txt"
exit 1
}
# The actual running of the binary can be overriden from an env.sh, if desired.
wrap_cmd() {
exec "$@"
}
main "$@"
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