#!/bin/bash
set -o nounset -o errexit -o pipefail

SCRIPT_ROOT="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

# To generate a Python version, we will need to mangle it
# slightly.  Namely, we must perform the following translations:
#
#     1) Skip the leading "v" (i.e., "1.3.11", not "v1.3.11").
#     2) Change "-dev-<xyz>" into an alpha release "a<xyz>".
#     3) Change "-rc-<xyz>" into a release candidate "rc<xyz>".
#     4) Change "-<commitish><dirty>" into a local version label;
#        e.g. "+37bc2f9-dirty" rather than "-37bc2f9-dirty".
#
# This ensures conformance with PEP440:
# https://www.python.org/dev/peps/pep-0440/#version-scheme.
echo $($SCRIPT_ROOT/get-version "$@") | \
    sed 's/v//'      | \
    sed 's/-dev-/a/' | \
    sed 's/-rc-/rc/' | \
    sed 's/-/+/'