linux/scripts/dtc/update-dtc-source.sh
Grant Likely c8a3e6a866 scripts/dtc: Add a script to update to mainline dtc source
A very simple script that automates pulling in a newer version of DTC.
Not particularly robust, but a whole lot better than doing it by hand
every time.

Signed-off-by: Grant Likely <grant.likely@linaro.org>
2014-01-21 13:48:34 +00:00

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#!/bin/sh
# Simple script to update the version of DTC carried by the Linux kernel
#
# This script assumes that the dtc and the linux git trees are in the
# same directory. After building dtc in the dtc directory, it copies the
# source files and generated source files into the scripts/dtc directory
# in the kernel and creates a git commit updating them to the new
# version.
#
# Usage: from the top level Linux source tree, run:
# $ ./scripts/dtc/update-dtc-source.sh
#
# The script will change into the dtc tree, build and test dtc, copy the
# relevant files into the kernel tree and create a git commit. The commit
# message will need to be modified to reflect the version of DTC being
# imported
#
# TODO:
# This script is pretty basic, but it is seldom used so a few manual tasks
# aren't a big deal. If anyone is interested in making it more robust, the
# the following would be nice:
# * Actually fail to complete if any testcase fails.
# - The dtc "make check" target needs to return a failure
# * Extract the version number from the dtc repo for the commit message
# * Build dtc in the kernel tree
# * run 'make check" on dtc built from the kernel tree
set -ev
DTC_UPSTREAM_PATH=`pwd`/../dtc
DTC_LINUX_PATH=`pwd`/scripts/dtc
DTC_SOURCE="checks.c data.c dtc.c dtc.h flattree.c fstree.c livetree.c srcpos.c \
srcpos.h treesource.c util.c util.h version_gen.h Makefile.dtc \
dtc-lexer.l dtc-parser.y"
DTC_GENERATED="dtc-lexer.lex.c dtc-parser.tab.c dtc-parser.tab.h"
# Build DTC
cd $DTC_UPSTREAM_PATH
make clean
make check
# Copy the files into the Linux tree
cd $DTC_LINUX_PATH
for f in $DTC_SOURCE; do
cp ${DTC_UPSTREAM_PATH}/${f} ${f}
git add ${f}
done
for f in $DTC_GENERATED; do
cp ${DTC_UPSTREAM_PATH}/$f ${f}_shipped
git add ${f}_shipped
done
git commit -e -v -m "scripts/dtc: Update to upstream version [CHANGEME]"