func properties()

in cmd/iceberg/main.go [346:417]
64 lines of code
16 McCabe index (conditional complexity)

func properties(ctx context.Context, output Output, cat catalog.Catalog, args propCmd) {
	ident := catalog.ToIdentifier(args.identifier)

	switch {
	case args.get:
		var props iceberg.Properties
		switch {
		case args.namespace:
			var err error
			props, err = cat.LoadNamespaceProperties(ctx, ident)
			if err != nil {
				output.Error(err)
				os.Exit(1)
			}
		case args.table:
			tbl := loadTable(ctx, output, cat, args.identifier)
			props = tbl.Metadata().Properties()
		}

		if args.propname == "" {
			output.DescribeProperties(props)

			return
		}

		if val, ok := props[args.propname]; ok {
			output.Text(val)
		} else {
			output.Error(errors.New("could not find property " + args.propname + " on namespace " + args.identifier))
			os.Exit(1)
		}
	case args.set:
		switch {
		case args.namespace:
			_, err := cat.UpdateNamespaceProperties(ctx, ident,
				nil, iceberg.Properties{args.propname: args.value})
			if err != nil {
				output.Error(err)
				os.Exit(1)
			}

			output.Text("updated " + args.propname + " on " + args.identifier)
		case args.table:
			tbl := loadTable(ctx, output, cat, args.identifier)
			output.Text("Setting " + args.propname + "=" + args.value + " on " + args.identifier)

			// TODO: handle other Update operations
			_, _, err := cat.CommitTable(ctx, tbl, nil,
				[]table.Update{table.NewSetPropertiesUpdate(iceberg.Properties{args.propname: args.value})})
			if err != nil {
				output.Error(err)
				os.Exit(1)
			}
		}
	case args.remove:
		switch {
		case args.namespace:
			_, err := cat.UpdateNamespaceProperties(ctx, ident,
				[]string{args.propname}, nil)
			if err != nil {
				output.Error(err)
				os.Exit(1)
			}

			output.Text("removing " + args.propname + " from " + args.identifier)
		case args.table:
			loadTable(ctx, output, cat, args.identifier)
			output.Text("Setting " + args.propname + "=" + args.value + " on " + args.identifier)
			output.Error(errors.New("not implemented: Writing is WIP"))
		}
	}
}