Allwmake

#!/bin/bash

# COLORS
RED_BOLD='\e[1;31m'
RESET_FONT='\e[0m'

set -e

checkRepoStatus()
{
    GIT_BRANCH=$(git rev-parse --abbrev-ref HEAD)
    if [[ $GIT_BRANCH == "master" ]]; then
        NUM_MODIFIED_FILES=$(git diff-index --name-only HEAD | wc -l)
        if [[ $NUM_MODIFIED_FILES > 0 ]]; then
            # Set color to red and bold
            echo -e "${RED_BOLD}ABORT COMPILATION"
            echo "    There are modified files in your working directory"
            echo "    Compilation on master branch is only allowed for a clean working directory"
            echo -e "${RESET_FONT}"
            echo "Modified files are: "
            echo "$(git diff-index --name-only HEAD)"
            echo "Force compiling with ./Allwmake --force or ./Allwmake -f"
            exit 1
        fi
    fi

}


display_usage()
{
    echo "Usage: Allwmake [OPTIONS]"
    echo "Options:"
    echo "  -j|--parallel <#cores> Compile in parallel"
    echo "  -f|--force             Force compilation for a dirty git state"
    echo "  -h|--help              Print usage"
    echo "  *)                     All other commands are forwarded to CMake"
    exit 1
}

# ==============================================================================
# Parse command line enties 
# ==============================================================================

POSITIONAL=()
PARALLEL=false
FORCE=false
while [[ $# -gt 0 ]]; do
    key="$1"

    case $key in
    -j|--parallel)
        PARALLEL="YES"
        shift # past argument
        re='^[0-9]+$'
        if [[ $1 =~ $re ]] ; then
            NUM_CORES="$1"
            shift
        else
            NUM_CORES=$(cat /proc/cpuinfo | grep processor | wc -l)            
        fi
      ;;
    -f|--force)
        FORCE="YES"
        shift # past argument
        ;;
    -h|--help|-help)
        display_usage
        ;;
    *)    # unknown option
        POSITIONAL+=("$1") # save it in an array for later
        shift # past argument
        ;;
    esac
done

# ==============================================================================
# Print header
# ==============================================================================
echo "==========================================================================="
echo "       ██╗    ██╗███████╗███╗   ██╗ ██████╗     ███████╗██╗  ██╗████████╗  "
echo "       ██║    ██║██╔════╝████╗  ██║██╔═══██╗    ██╔════╝╚██╗██╔╝╚══██╔══╝  "
echo "       ██║ █╗ ██║█████╗  ██╔██╗ ██║██║   ██║    █████╗   ╚███╔╝    ██║     "
echo "       ██║███╗██║██╔══╝  ██║╚██╗██║██║   ██║    ██╔══╝   ██╔██╗    ██║     "
echo "       ╚███╔███╔╝███████╗██║ ╚████║╚██████╔╝    ███████╗██╔╝ ██╗   ██║     "
echo "        ╚══╝╚══╝ ╚══════╝╚═╝  ╚═══╝ ╚═════╝     ╚══════╝╚═╝  ╚═╝   ╚═╝     "
echo "==========================================================================="                                                                                                                              
echo "                                                                           "
echo "License                                                                    "
echo "   This file is part of WENOExt.                                           "
echo "                                                                           "
echo "   WENOExt is free software: you can redistribute it and/or modify         "
echo "   it under the terms of the GNU General Public License as published by    "
echo "   the Free Software Foundation, either version 3 of the License, or       "
echo "   (at your option) any later version.                                     "
echo "                                                                           "
echo "   WENOExt is distributed in the hope that it will be useful, but          "
echo "   WITHOUT ANY WARRANTY; without even the implied warranty of              "
echo "   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.                    "
echo "   See the GNU General Public License for more details.                    "
echo "                                                                           "
echo "   You should have received a copy of the GNU General Public License       "
echo "   along with  WENOExt.  If not, see <http://www.gnu.org/licenses/>.       "
echo "==========================================================================="
echo "                                                                           "
echo "Build with these options:                                                  "
echo "Parallel:        ${PARALLEL}                                               "
echo "Number of cores: ${NUM_CORES}                                              "
echo "                                                                           "
echo "==========================================================================="
echo "                        Start CMake Process                                "
echo "==========================================================================="

cd ${0%/*} || exit 1    # Run from this directory


mkdir -p build
cd build

if [[ ${FORCE} != "YES" ]]; then
    checkRepoStatus
fi

cmake .. ${POSITIONAL[@]}
if [[ ${PARALLEL} == "YES" ]]; then
    make -j ${NUM_CORES}
else
    make
fi
make install

echo "==========================================================================="
echo "                       Done Building WENOExt                               "
echo "==========================================================================="