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// Copyright (c) 2018-2022, Sylabs Inc. All rights reserved.
// This software is licensed under a 3-clause BSD license. Please consult the
// LICENSE.md file distributed with the sources of this project regarding your
// rights to use or distribute this software.
package sources
import (
"context"
"fmt"
shub "github.com/sylabs/singularity/v4/internal/pkg/client/shub"
"github.com/sylabs/singularity/v4/pkg/build/types"
"github.com/sylabs/singularity/v4/pkg/sylog"
)
// ShubConveyorPacker only needs to hold the conveyor to have the needed data to pack.
type ShubConveyorPacker struct {
b *types.Bundle
LocalPacker
}
// Get downloads container from Singularityhub.
func (cp *ShubConveyorPacker) Get(ctx context.Context, b *types.Bundle) (err error) {
sylog.Debugf("Getting container from Shub")
cp.b = b
src := `shub://` + b.Recipe.Header["from"]
imagePath, err := shub.Pull(ctx, b.Opts.ImgCache, src, b.Opts.TmpDir, b.Opts.NoHTTPS)
if err != nil {
return fmt.Errorf("while fetching library image: %v", err)
}
// insert base metadata before unpacking fs
if err = makeBaseEnv(cp.b.RootfsPath); err != nil {
return fmt.Errorf("while inserting base environment: %v", err)
}
cp.LocalPacker, err = GetLocalPacker(ctx, imagePath, cp.b)
return err
}
// CleanUp removes any tmpfs owned by the conveyorPacker on the filesystem
func (cp *ShubConveyorPacker) CleanUp() {
cp.b.Remove()
}
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