pyenv/libexec/rbenv-exec

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#!/usr/bin/env bash
set -e
[ -n "$RBENV_DEBUG" ] && set -x
# Provide rbenv completions
if [ "$1" = "--complete" ]; then
exec rbenv shims --short
fi
RBENV_COMMAND="$1"
if [ -z "$RBENV_COMMAND" ]; then
echo "usage: rbenv exec COMMAND [arg1 arg2...]" >&2
exit 1
fi
RBENV_COMMAND_PATH="$(rbenv-which "$RBENV_COMMAND")"
RBENV_BIN_PATH="${RBENV_COMMAND_PATH%/*}"
for script in $(rbenv-hooks exec); do
source "$script"
done
shift 1
export PATH="${RBENV_BIN_PATH}:${PATH}"
exec -a "$RBENV_COMMAND" "$RBENV_COMMAND_PATH" "$@"