#!/bin/bash

# Copyright (c) 2020 Cisco and/or its affiliates.
# 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.

echo "---> jjb/scripts/setup_executor_env.sh"

set -e -o pipefail

OS_ID=$(grep '^ID=' /etc/os-release | cut -f2- -d= | sed -e 's/\"//g')
OS_VERSION_ID=$(grep '^VERSION_ID=' /etc/os-release | cut -f2- -d= | sed -e 's/\"//g')
OS_ARCH=$(uname -m)
dockerfile="/scratch/docker-build/Dockerfile"
file_delimiter="----- %< -----"
long_line="************************************************************************"
downloads_cache="/root/Downloads"

echo "$long_line"
echo "Executor Runtime Attributes:"
echo "OS: $OS_ID-$OS_VERSION_ID"
echo "Arch: $OS_ARCH"
echo "Nomad Hostname: $(grep search /etc/resolv.conf | cut -d' ' -f2 | head -1)"
echo "Container ID: $(hostname)"

echo "$long_line"
if [ -f "$dockerfile" ] ; then
    echo -e "Executor Dockerfile: ${dockerfile}\n${file_delimiter}"
    cat $dockerfile
    echo "$file_delimiter"
else
    echo "Unknown Executor: '$dockerfile' not found!"
fi

echo "$long_line"
echo "Executor package list:"
if [ "$OS_ID" == "ubuntu" ] || [ "$OS_ID" = "debian" ] ; then
    dpkg-query -W -f='${binary:Package}\t${Version}\n' | column -t || true
elif [ "$OS_ID" == "centos" ] ; then
    yum list installed || true
fi

echo "$long_line"
echo "Python3 package list:"
pip3 list 2>/dev/null | column -t || true

echo "$long_line"
echo "Executor Downloads cache '$downloads_cache':"
ls -lh "$downloads_cache" || true

echo "$long_line"
echo "DNS nameserver config in '/etc/resolv.conf':"
cat /etc/resolv.conf || true

echo "$long_line"
if [ -n "$(which ccache || true)" ] ; then
    if  [ -z "${CCACHE_DIR:-}" ] || [ ! -d "$CCACHE_DIR" ] ; then
        echo "CCACHE_DIR='$CCACHE_DIR' is missing, disabling CCACHE..."
        export CCACHE_DISABLE="1"
    fi
    if [ -n "${CCACHE_DISABLE:-}" ] ; then
        echo "CCACHE_DISABLE = '$CCACHE_DISABLE'"
    fi
    echo "ccache statistics:"
    ccache -s
else
    echo "WARNING: ccache is not installed!"
    export CCACHE_DISABLE="1"
fi
echo "$long_line"