list.go

/*
 *     Copyright 2024 The CNAI Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package cmd

import (
	"context"
	"fmt"
	"os"
	"text/tabwriter"

	"github.com/modelpack/modctl/pkg/backend"

	humanize "github.com/dustin/go-humanize"
	"github.com/spf13/cobra"
	"github.com/spf13/viper"
)

// listCmd represents the modctl command for list.
var listCmd = &cobra.Command{
	Use:                "ls",
	Short:              "List model artifacts currently stored locally.",
	Args:               cobra.NoArgs,
	DisableAutoGenTag:  true,
	SilenceUsage:       true,
	FParseErrWhitelist: cobra.FParseErrWhitelist{UnknownFlags: true},
	RunE: func(cmd *cobra.Command, args []string) error {
		return runList(cmd.Context())
	},
}

// init initializes list command.
func init() {
	flags := listCmd.Flags()

	if err := viper.BindPFlags(flags); err != nil {
		panic(fmt.Errorf("bind list flags to viper: %w", err))
	}
}

// runList runs the list modctl.
func runList(ctx context.Context) error {
	b, err := backend.New(rootConfig.StorageDir)
	if err != nil {
		return err
	}

	artifacts, err := b.List(ctx)
	if err != nil {
		return err
	}

	tw := tabwriter.NewWriter(os.Stdout, 0, 0, 4, ' ', 0)
	defer tw.Flush()
	fmt.Fprintln(tw, "REPOSITORY\tTAG\tDIGEST\tCREATED\tSIZE")

	for _, artifact := range artifacts {
		fmt.Fprintf(tw, "%s\t%s\t%s\t%s\t%s\n", artifact.Repository, artifact.Tag, artifact.Digest, humanize.Time(artifact.CreatedAt), humanize.IBytes(uint64(artifact.Size)))
	}

	return nil
}