#!/bin/sh
# Convert old-style NXP overrides to new style BSP overides
#
# Essentially, we extend the overrides to a generic-bsp, nxp-bsp, and mainline-bsp.
#
# So, for example, the mx8mq override is split into:
#
# - imx-generic-bsp: compatible with every i.MX SoC and both BSP variants
# - imx-nxp-bsp: compatible with every i.MX SoC but specific to NXP BSP
# - imx-mainline-bsp: compatible with every i.MX SoC but specific to Mainline BSP
#
# - mx8-generic-bsp: compatible with every i.MX8 SoC and both BSP variants
# - mx8-nxp-bsp: compatible with every i.MX8 SoC but specific to NXP BSP
# - mx8-mainline-bsp: compatible with every i.MX8 SoC but specific to Mainline BSP
#
# - mx8m-generic-bsp: compatible with every i.MX8M SoC and both BSP variants
# - mx8m-nxp-bsp: compatible with every i.MX8M SoC but specific to NXP BSP
# - mx8m-mainline-bsp: compatible with every i.MX8M SoC but specific to Mainline BSP
#
# - mx8mq-generic-bsp: compatible with every i.MX8MQ SoC and both BSP variants
# - mx8mq-nxp-bsp: compatible with every i.MX8MQ SoC8 but specific to NXP BSP
# - mx8mq-mainline-bsp: compatible with every i.MX8MQ SoC but specific to Mainline BSP
#
# The extender mechanism is responsible for extending the override list to include the generic
# overrides. We can then use the three different variants to handle the metadata correctly.
#
# WARN: This script is intended to be run only once in a layer.
#
# Copyright 2022 (C) O.S. Systems Software LTDA.

# Error out if the layer looks as already converted.
if git ls-files \
        | grep -v 'conf/machine/' \
        | xargs egrep -q '(mx[5-8s]|vf\w+)-(nxp|generic|mainline)-bsp'; then
    echo "ERROR: The $0 should be used once in a layer. The layer seems already converted."
    exit 1
fi

# Convert the recipes to use the new BSP-specific overrides.
git ls-files \
    | grep -v 'conf/machine/' \
    | xargs sed -i \
            -e 's,:\(mx[6-8]\w*\),:\1-nxp-bsp,g' \
            -e 's,(\(mx[6-8]\w*\)),(\1-nxp-bsp),g' \
            -e 's,\(mx[6-8]\w*\)|,\1-nxp-bsp|,g' \
            -e 's,|\(mx[6-8]\w*\)),|\1-nxp-bsp),g' \
            \
            -e 's,:\(mx[5s]\w*\),:\1-generic-bsp,g' \
            -e 's,(\(mx[5s]\w*\)),(\1-generic-bsp),g' \
            -e 's,\(mx[5s]\w*\)|,\1-generic-bsp|,g' \
            -e 's,|\(mx[5s]\w*\)),|\1-generic-bsp),g' \
            \
            -e 's,:\(vf\w*\),:\1-generic-bsp,g' \
            -e 's,:\(vf[56]0\w*\),:\1-generic-bsp,g' \
            -e 's,\(vf\w*\)|,\1-generic-bsp|,g' \
            -e 's,|\(vf\w*\)),|\1-generic-bsp),g' \
            -e 's,\(vf[56]0\w*\)|,\1-generic-bsp|,g' \
            -e 's,|\(vf[56]0\w*\)),|\1-generic-bsp),g' \
            \
            -e 's,:\(imx\) ,:\1-nxp-bsp ,g' \
            -e 's,(\(imx\)),(\1-nxp-bsp),g' \
            -e 's,\(imx\)|,\1-nxp-bsp|,g' \
            -e 's,|\(imx\)),|\1-nxp-bsp),g'

# Convert the folders old overrides to the new BSP-specific overrides.
for d in $(find -type d | egrep '/mx[6-8]w*'); do
    git mv $d $d-nxp-bsp
done

for d in $(find -type d | egrep '/imx$'); do
    git mv $d $d-nxp-bsp
done

for d in $(find -type d | egrep '/mx[5s]w*'); do
    git mv $d $d-generic-bsp
done

# Rework machine overrides to simplify them.
git ls-files conf \
    | xargs sed -i \
            -e 's,mx6:mx6,mx6,g' \
            -e 's,mx6ul:mx6ull:,mx6ull:,g' \
            -e 's,mx6dl:mx6q:,mx6q:mx6dl:,g' \
            \
            -e 's,mx8:mx8m,mx8m,g' \
            -e 's,mx8m:mx8m,mx8m,g' \
            -e 's,mx8:mx8x:mx8,mx8,g'