#!/bin/bash -ex

# Copyright 2016 Hewlett Packard Enterprise Development Company, L.P.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.

# This script is intended to be run as a periodic proposal bot job
# in OpenStack infrastructure, though you can run it as a one-off.
#
# In order to function correctly, the environment in which the
# script runs must have
#   * git
#   * all git repos meant to be searched for plugins cloned and
#     at the desired level of up-to-datedness
#   * a writable doc/source directory relative to the current
#     working directory
#
# If a file named data/devstack-plugins-registry.header or
# data/devstack-plugins-registry.footer is found relative to the
# current working directory, it will be prepended or appended to
# the generated reStructuredText plugins table respectively.

(
declare -A plugins

test -r data/devstack-plugins-registry.header && cat data/devstack-plugins-registry.header

pushd ${git_dir:-/opt/openstack} >/dev/null
for i in *; do
    pushd ${i} >/dev/null
    if output="$(git log --diff-filter=A --format='%cd' --date=short -1 -- devstack/plugin.sh)"; then
        test -n "$output" && plugins[$i]=${output}
    fi
    popd >/dev/null
done
popd >/dev/null

sorted_plugins=( $(for k in "${!plugins[@]}"; do echo "$k"; done | sort))

for k in "${sorted_plugins[@]}"; do
    project=${k:0:18}
    giturl="git://git.openstack.org/openstack/${k:0:26}"
    pdate="${plugins[$k]}"
    printf "|%-18s|%-60s|%-12s|\n" "${project}" "${giturl}" "${pdate}"
    printf "+------------------+------------------------------------------------------------+------------+\n"
done

test -r data/devstack-plugins-registry.footer && cat data/devstack-plugins-registry.footer
) > doc/source/plugin-registry.rst