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tools: add dtscat script #40

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Feb 20, 2024
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tools: add dtscat script #40

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49 changes: 49 additions & 0 deletions tools/dtscat
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Original file line number Diff line number Diff line change
@@ -0,0 +1,49 @@
# This is a baisc script that concatenates the given Device Tree Sources.
# Useful for when you have a single DTS
# Author: tim-arney
#!/bin/bash

usage() {
cmd=$(basename "$0")
echo "usage: $cmd <base_dts> [<overlay1> ... <overlayN>]" >&2
exit 1
}

if [ "$#" -lt 1 ]
then
usage
fi

BASE="$1"
shift
OVERLAYS="$*"

if [ ! -f "$BASE" ]
then
echo "error: file not found: $BASE" >&2
exit 1
fi

if ! grep '/dts-v1/;' "$BASE" > /dev/null
then
echo "error: '/dts-v1/;' tag not found in $BASE, are you sure this is a base file?" >&2
exit 1
fi

for OVERLAY in $OVERLAYS
do
if [ ! -f "$OVERLAY" ]
then
echo "error: file not found: $OVERLAY" >&2
exit 1
fi

if grep '/dts-v1/;' "$OVERLAY" > /dev/null
then
echo "error: '/dts-v1/;' tag found in $OVERLAY, should only be present in the base file" >&2
exit 1
fi
done

cat "$BASE" $OVERLAYS

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