pyenv/libexec/pyenv-exec

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