# 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
# only a few files have dependencies

for file in *.cpp *.h; do
  if (test $file = "pair_cdeam.cpp") then
    action pair_cdeam.cpp pair_eam_alloy.cpp
  elif (test $file = "pair_cdeam.h") then
    action pair_cdeam.h pair_eam_alloy.cpp
  else
    test -f ${file} && action $file
  fi
done
