| #!/bin/bash |
| # SPDX-License-Identifier: GPL-2.0+ |
| # |
| # config_override.sh base override |
| # |
| # Combines base and override, removing any Kconfig options from base |
| # that conflict with any in override, concatenating what remains and |
| # sending the result to standard output. |
| # |
| # Copyright (C) IBM Corporation, 2017 |
| # |
| # Authors: Paul E. McKenney <paulmck@linux.ibm.com> |
| |
| base=$1 |
| if test -r $base |
| then |
| : |
| else |
| echo Base file $base unreadable!!! |
| exit 1 |
| fi |
| |
| override=$2 |
| if test -r $override |
| then |
| : |
| else |
| echo Override file $override unreadable!!! |
| exit 1 |
| fi |
| |
| T=${TMPDIR-/tmp}/config_override.sh.$$ |
| trap 'rm -rf $T' 0 |
| mkdir $T |
| |
| sed < $override -e 's/^/grep -v "/' -e 's/=.*$/="/' | |
| awk ' |
| { |
| if (last) |
| print last " |"; |
| last = $0; |
| } |
| END { |
| if (last) |
| print last; |
| }' > $T/script |
| sh $T/script < $base |
| cat $override |
