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utils.go
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/
utils.go
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// SPDX-License-Identifier: BSD-3-Clause
// Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.
// Licensed under the BSD-3-Clause License (the "License").
// You may not use this file except in compliance with the License.
package build
import (
"context"
"fmt"
"path/filepath"
"kraftkit.sh/initrd"
"kraftkit.sh/unikraft"
)
// buildRootfs generates a rootfs based on the provided
func (opts *BuildOptions) buildRootfs(ctx context.Context) error {
if opts.Rootfs == "" {
return nil
}
ramfs, err := initrd.New(ctx, opts.Rootfs,
initrd.WithOutput(filepath.Join(opts.workdir, unikraft.BuildDir, initrd.DefaultInitramfsFileName)),
initrd.WithCacheDir(filepath.Join(opts.workdir, unikraft.VendorDir, "rootfs-cache")),
)
if err != nil {
return fmt.Errorf("could not prepare initramfs: %w", err)
}
if _, err := ramfs.Build(ctx); err != nil {
return err
}
return nil
}