command

var Commands = []*cli.Command{
	{
		Name:  "upload",
		Usage: "Upload files",
		Description: "Upload files specified by the given paths. Each path can have an optional name. " +
			"If a name is given, uploaded file will be renamed with it.\n\n" +
			"If recipients are specified by --recipient and/or --recipient-file flags, " +
			"files will be encrypted before being uploaded.\n\n" +
			"A recipient can be an age public key generated by age-keygen (\"age1...\") " +
			"or an SSH public key (\"ssh-ed25519 AAAA...\", \"ssh-rsa AAAA...\"). \n\n" +
			"A recipient file contains one or more recipients, one per line. " +
			"Empty lines and lines starting with \"#\" are ignored as comments.",
		ArgsUsage: "<path[:name]>...",
		Action:    CmdUpload,
		Flags: []cli.Flag{
			&cli.StringFlag{
				Name: FlagAlbumName,
				Usage: "If multiple files are uploaded, an album consisting of those files will be created. " +
					"This flag can specifies the album `NAME`.",
			},
			&cli.StringSliceFlag{
				Name:     FlagRecipient,
				Aliases:  []string{"r"},
				Category: "End-to-end encryption",
				Usage:    "Encrypt to the specified `RECIPIENT`. Can be repeated.",
			},
			&cli.StringFlag{
				Name:     FlagRecipientFile,
				Aliases:  []string{"R"},
				Category: "End-to-end encryption",
				Usage:    "Encrypt to recipients listed at `PATH`.",
			},
		},
	}, {
		Name:  "download",
		Usage: "Download files",
		Description: "Download files associated with the given URLs. " +
			"If the URL refers an album, you will be asked which file you want to download.\n\n" +
			"If a downloading file has extension \".age\" and an identity is specified with --identity flag, " +
			"the file will be decrypted.\n\n" +
			"An identity file contains one or more secret keys (\"AGE-SECRET-KEY-1...\"), one per line, " +
			"or an SSH key. " +
			"Empty lines and lines starting with \"#\" are ignored as comments.",
		ArgsUsage: "<URL>...",
		Action:    CmdDownload,
		Flags: []cli.Flag{
			&cli.StringFlag{
				Name:        FlagDirectory,
				Aliases:     []string{"o"},
				Usage:       "`path` to the directory where downloaded files will be stored",
				DefaultText: ".",
			},
			&cli.BoolFlag{
				Name:  FlagAll,
				Usage: "if an album URL is given, download all files in it",
			},
			&cli.StringFlag{
				Name:     FlagIdentity,
				Aliases:  []string{"i"},
				Category: "End-to-end encryption",
				Usage:    "Use the identity file at `PATH`.",
			},
		},
	},
}

var ErrUnsupportedPublicKey = errors.New("not supported public key")