#!/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"
LIBFDT_SOURCE="Makefile.libfdt fdt.c fdt.h fdt_empty_tree.c fdt_ro.c fdt_rw.c fdt_strerror.c fdt_sw.c fdt_wip.c libfdt.h libfdt_env.h libfdt_internal.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
for f in $LIBFDT_SOURCE; do
       cp ${DTC_UPSTREAM_PATH}/libfdt/${f} libfdt/${f}
       git add libfdt/${f}
done

sed -i -- 's/#include <libfdt_env.h>/#include "libfdt_env.h"/g' ./libfdt/libfdt.h
sed -i -- 's/#include <fdt.h>/#include "fdt.h"/g' ./libfdt/libfdt.h
git add ./libfdt/libfdt.h

git commit -e -v -m "scripts/dtc: Update to upstream version [CHANGEME]"
ext.git/log/net/ipv4/tcp_vegas.c'>
<input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='90427ef5d2a4b9a24079889bf16afdcdaebc4240'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?h=nds-private-remove&amp;id=90427ef5d2a4b9a24079889bf16afdcdaebc4240'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/net?h=nds-private-remove&amp;id=90427ef5d2a4b9a24079889bf16afdcdaebc4240'>net</a>/<a href='/cgit.cgi/linux/net-next.git/log/net/ipv4?h=nds-private-remove&amp;id=90427ef5d2a4b9a24079889bf16afdcdaebc4240'>ipv4</a>/<a href='/cgit.cgi/linux/net-next.git/log/net/ipv4/tcp_vegas.c?h=nds-private-remove&amp;id=90427ef5d2a4b9a24079889bf16afdcdaebc4240'>tcp_vegas.c</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/net/ipv4/tcp_vegas.c?h=nds-private-remove&amp;id=90427ef5d2a4b9a24079889bf16afdcdaebc4240&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>