48 lines
1 KiB
Go
48 lines
1 KiB
Go
package main
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import (
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"context"
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"flag"
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"fmt"
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"github.com/genuinetools/reg/registry"
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)
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const digestHelp = `Get the digest for a repository.`
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func (cmd *digestCommand) Name() string { return "digest" }
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func (cmd *digestCommand) Args() string { return "[OPTIONS] NAME[:TAG]" }
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func (cmd *digestCommand) ShortHelp() string { return digestHelp }
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func (cmd *digestCommand) LongHelp() string { return digestHelp }
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func (cmd *digestCommand) Hidden() bool { return false }
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func (cmd *digestCommand) Register(fs *flag.FlagSet) {}
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type digestCommand struct{}
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func (cmd *digestCommand) Run(ctx context.Context, args []string) error {
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if len(args) < 1 {
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return fmt.Errorf("pass the name of the repository")
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}
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image, err := registry.ParseImage(args[0])
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if err != nil {
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return err
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}
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// Create the registry client.
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r, err := createRegistryClient(image.Domain)
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if err != nil {
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return err
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}
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// Get the digest.
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digest, err := r.Digest(image)
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if err != nil {
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return err
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}
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fmt.Println(digest.String())
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return nil
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}
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