bazel_6: only use python3

, lr, xe, zip, unzip, bash, writeCBin, coreutils

, which, gawk, gnused, gnutar, gnugrep, gzip, findutils

# updater

, python27, python3, writeScript

, python3, writeScript

# Apple dependencies

, cctools, libcxx, CoreFoundation, CoreServices, Foundation

# Allow to independently override the jdks used to build and run respectively

    #            "@bison//:bin/bison",

    #        ],

    #     )

    #

    # Some of the scripts explicitly depend on Python 2.7. Otherwise, we

    # default to using python3. Therefore, both python27 and python3 are

    # runtime dependencies.

    [

      bash

      coreutils

      gnused

      gnutar

      gzip

      python27

      python3

      unzip

      which

      grep -rlZ /bin/ src/main/java/com/google/devtools | while IFS="" read -r -d "" path; do

        # If you add more replacements here, you must change the grep above!

        # Only files containing /bin are taken into account.

        # We default to python3 where possible. See also `postFixup` where

        # python3 is added to $out/nix-support

        substituteInPlace "$path" \

          --replace /bin/bash ${bash}/bin/bash \

          --replace "/usr/bin/env bash" ${bash}/bin/bash \

      grep -rlZ /bin/ tools/python | while IFS="" read -r -d "" path; do

        substituteInPlace "$path" \

          --replace "/usr/bin/env python2" ${python27}/bin/python \

          --replace "/usr/bin/env python2" ${python3.interpreter} \

          --replace "/usr/bin/env python3" ${python3}/bin/python \

          --replace /usr/bin/env ${coreutils}/bin/env

      done