armbian_build/lib/functions/compilation/kernel-git-oras.sh

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function download_git_kernel_gitball_via_oras() {
declare git_bundles_dir="${SRC}/cache/git-bundles/kernel"
declare git_kernel_ball_fn="linux-complete.git.tar" # @TODO: shallow?
declare git_kernel_oras_ref="ghcr.io/rpardini/armbian-git-shallow/kernel-git:latest" # @TODO: shallow?
run_host_command_logged mkdir -p "${git_bundles_dir}" # this is later cleaned up by kernel_cleanup_bundle_artifacts()
# defines outer scope value
linux_kernel_clone_tar_file="${git_bundles_dir}/${git_kernel_ball_fn}"
# if the file already exists, do nothing; it will only exist if successfully downloaded by ORAS
if [[ -f "${linux_kernel_clone_tar_file}" ]]; then
display_alert "Kernel git-tarball already exists" "${git_kernel_ball_fn}" "cachehit"
return 0
fi
# do_with_retries 5 xxx ? -- no -- oras_pull_artifact_file should do it's own retries.
oras_pull_artifact_file "${git_kernel_oras_ref}" "${git_bundles_dir}" "${git_kernel_ball_fn}"
# sanity check
if [[ ! -f "${linux_kernel_clone_tar_file}" ]]; then
exit_with_error "Kernel git-tarball download failed ${linux_kernel_clone_tar_file}"
fi
return 0
}
function kernel_prepare_bare_repo_from_oras_gitball() {
kernel_git_bare_tree="${SRC}/cache/git-bare/kernel" # sets the outer scope variable
declare kernel_git_bare_tree_done_marker="${kernel_git_bare_tree}/.git/armbian-bare-tree-done"
if [[ ! -d "${kernel_git_bare_tree}" || ! -f "${kernel_git_bare_tree_done_marker}" ]]; then
display_alert "Preparing bare kernel git tree" "this might take a long time" "info"
if [[ -d "${kernel_git_bare_tree}" ]]; then
display_alert "Removing old kernel bare tree" "${kernel_git_bare_tree}" "info"
run_host_command_logged rm -rf "${kernel_git_bare_tree}"
fi
# now, make sure we've the bundle downloaded correctly...
# this defines linux_kernel_clone_bundle_file
declare linux_kernel_clone_tar_file
download_git_kernel_gitball_via_oras # sets linux_kernel_clone_tar_file or dies
# Just extract the tar_file into the "${kernel_git_bare_tree}" directory, no further work needed.
run_host_command_logged mkdir -p "${kernel_git_bare_tree}"
# @TODO chance of a pv thingy here?
run_host_command_logged tar -xf "${linux_kernel_clone_tar_file}" -C "${kernel_git_bare_tree}"
# sanity check
if [[ ! -d "${kernel_git_bare_tree}/.git" ]]; then
exit_with_error "Kernel bare tree is missing .git directory ${kernel_git_bare_tree}"
fi
# write the marker file
touch "${kernel_git_bare_tree_done_marker}"
else
display_alert "Kernel bare tree already exists" "${kernel_git_bare_tree}" "cachehit"
fi
git_ensure_safe_directory "${kernel_git_bare_tree}"
return 0
}