# Install/unInstall package files in LAMMPS
# mode = 0/1/2 for uninstall/install/update

mode=$1

# enforce using portable C locale
LC_ALL=C
export LC_ALL

# arg1 = file, arg2 = file it depends on

action () {
    if (test $mode = 0) then
        rm -f ../$1
    elif (! cmp -s $1 ../$1) then
        if (test -z "$2" || test -e ../$2) then
            cp $1 ..
            if (test $mode = 2) then
                echo "  updating src/$1"
            fi
        fi
    elif (test -n "$2") then
        if (test ! -e ../$2) then
            rm -f ../$1
        fi
    fi
}

# all package files with no dependencies

for file in *.cpp *.h; do
    test -f ${file} && action $file
done

if (test $1 = 1) then
    if (test -e ../Makefile.package) then
        sed -i -e 's/[^ \t]*mlpod[^ \t]* //g' ../Makefile.package
        sed -i -e 's|^PKG_PATH =[ \t]*|&-L../../lib/mlpod |' ../Makefile.package
        sed -i -e 's|^PKG_LIB =[ \t]*|&-lmlpod |' ../Makefile.package
        sed -i -e 's|^PKG_SYSPATH =[ \t]*|&$(mlpod_SYSPATH) |' ../Makefile.package
        sed -i -e 's|^PKG_SYSLIB =[ \t]*|&$(mlpod_SYSLIB) |' ../Makefile.package
    fi
    if (test -e ../Makefile.package.settings) then
        sed -i -e '/^[ \t]*include.*mlpod.*$/d' ../Makefile.package.settings
        # multiline form needed for BSD sed on Macs
        sed -i -e '4 i \
include ..\/..\/lib\/mlpod\/Makefile.lammps
' ../Makefile.package.settings
    fi

elif (test $1 = 0) then
    if (test -e ../Makefile.package) then
        sed -i -e 's/[^ \t]*mlpod[^ \t]* //g' ../Makefile.package
    fi
    if (test -e ../Makefile.package.settings) then
        sed -i -e '/^[ \t]*include.*mlpod.*$/d' ../Makefile.package.settings
    fi
fi

