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f76f1fc013
Use a cancelReadCloser to automatically close the reader when the context is cancelled. Consumers are still recommended to manually close the reader, but the cancelReadCloser makes the Close idempotent. Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
42 lines
1.1 KiB
Go
42 lines
1.1 KiB
Go
package client
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import (
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"fmt"
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ocispec "github.com/opencontainers/image-spec/specs-go/v1"
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)
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type ImageSaveOption interface {
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Apply(*imageSaveOpts) error
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}
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type imageSaveOptionFunc func(opt *imageSaveOpts) error
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func (f imageSaveOptionFunc) Apply(o *imageSaveOpts) error {
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return f(o)
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}
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// ImageSaveWithPlatforms sets the platforms to be saved from the image. It
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// produces an error if platforms are already set. This option only has an
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// effect if the input image is a multi-platform image.
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func ImageSaveWithPlatforms(platforms ...ocispec.Platform) ImageSaveOption {
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// TODO(thaJeztah): verify the GoDoc; do we produce an error for a single-platform image without the given platform?
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return imageSaveOptionFunc(func(opt *imageSaveOpts) error {
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if opt.apiOptions.Platforms != nil {
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return fmt.Errorf("platforms already set to %v", opt.apiOptions.Platforms)
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}
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opt.apiOptions.Platforms = platforms
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return nil
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})
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}
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type imageSaveOpts struct {
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apiOptions imageSaveOptions
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}
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type imageSaveOptions struct {
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// Platforms selects the platforms to save if the image is a
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// multi-platform image and has multiple variants.
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Platforms []ocispec.Platform
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}
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