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#!/bin/bash
set -uxe
# shellcheck source=tests/lib/prepare.sh
. "$TESTSLIB/prepare.sh"
#shellcheck source=tests/lib/nested.sh
. "$TESTSLIB"/nested.sh
# Modify kernel and create a component
build_kernel_with_comp() {
mod_name=$1
comp_name=$2
kernel_snap_file=${3:-}
use_provided_kernel=true
if [ -z "${kernel_snap_file}" ]; then
use_provided_kernel=false
fi
if [ "${use_provided_kernel}" = false ]; then
nested_prepare_kernel
cp "$(tests.nested get extra-snaps-path)/pc-kernel.snap" "pc-kernel.snap"
kernel_snap_file="pc-kernel.snap"
fi
unsquashfs -d kernel "${kernel_snap_file}"
kernel_name="$(grep 'name:' kernel/meta/snap.yaml | awk '{ print $2 }')"
kern_ver=$(find kernel/modules/* -maxdepth 0 -printf "%f\n")
comp_ko_dir=$comp_name/modules/"$kern_ver"/kmod/
mkdir -p "$comp_ko_dir"
mkdir -p "$comp_name"/meta/
cat << EOF > "$comp_name"/meta/component.yaml
component: ${kernel_name}+${comp_name}
type: kernel-modules
version: 1.0
summary: kernel component
description: kernel component for testing purposes
EOF
# Replace _ or - with [_-], as it can be any of these
glob_mod_name=$(printf '%s' "$mod_name" | sed -r 's/[-_]/[-_]/g')
module_path=$(find kernel -name "${glob_mod_name}.ko*")
cp "$module_path" "$comp_ko_dir"
snap pack --filename="${kernel_name}+${comp_name}".comp "$comp_name"
# Create kernel without the kernel module
rm "$module_path"
# depmod wants a lib subdir
mkdir -p kernel/lib
ln -s ../modules kernel/lib/modules
depmod -b kernel/ "$kern_ver"
rm "${kernel_snap_file}"
# append component meta-information
#shellcheck disable=SC2016
gojq --arg COMP_NAME "${comp_name}" '.components = {$COMP_NAME:{"type":"kernel-modules"}}' --yaml-input kernel/meta/snap.yaml --yaml-output >kernel/meta/snap.yaml.new
mv kernel/meta/snap.yaml.new kernel/meta/snap.yaml
snap pack --filename="${kernel_snap_file}" kernel
if [ "${use_provided_kernel}" = false ]; then
# Just so that nested_prepare_kernel does not recopy the old one
cp "${kernel_snap_file}" "${NESTED_ASSETS_DIR}/pc-kernel.snap"
fi
rm -r kernel
}
build_kernel_with_comp "$@"
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