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Feat: show available & status of local tags (#119)
New command: sonar tags status Shows the local tags for an image, and their status as compared to Docker Hub. Status can be "local-only", synced, newer, or older.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,124 @@ | ||
| package cmd | ||
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| import ( | ||
| "context" | ||
| "fmt" | ||
| "strings" | ||
| "time" | ||
|
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| "github.com/docker/docker/api/types" | ||
| "github.com/docker/docker/client" | ||
| "github.com/felicianotech/sonar/sonar/docker" | ||
| "github.com/spf13/cobra" | ||
| ) | ||
|
|
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| var statusCmd = &cobra.Command{ | ||
| Use: "status <image-name>", | ||
| Short: "Displays the push/pull status of local tags", | ||
| Long: `Displays the tags for a particular image that you have locally in a table. Provides info on if the tag also exists on Docker Hub, and if it does, is the local or Hub version newer.`, | ||
| Args: cobra.ExactArgs(1), | ||
| RunE: func(cmd *cobra.Command, args []string) error { | ||
|
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| dCLI, err := client.NewClientWithOpts(client.FromEnv) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| images, err := dCLI.ImageList(context.Background(), types.ImageListOptions{}) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| var localTags []docker.Tag | ||
|
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| // Loop through all images | ||
| for _, image := range images { | ||
|
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| // Look through each image's tags | ||
| for _, tag := range image.RepoTags { | ||
|
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| if !strings.HasPrefix(tag, args[0]) { | ||
| break | ||
| } | ||
|
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| // this next section is to get the digest since while the image | ||
| // ID is available the digest is the preferred identifer. | ||
| var digestOrID string | ||
| if image.RepoDigests != nil { | ||
|
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| digestOrID = strings.Split(image.RepoDigests[0], "@")[1] | ||
| } else { | ||
| digestOrID = image.ID | ||
| } | ||
|
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| localTags = append(localTags, docker.Tag{ | ||
| Name: strings.Split(tag, ":")[1], | ||
| Size: image.Size, | ||
| Date: time.Unix(image.Created, 0).UTC(), | ||
| Digest: digestOrID, | ||
| }) | ||
| } | ||
| } | ||
|
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| dCLI.Close() | ||
|
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| // output data | ||
|
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| if len(localTags) == 0 { | ||
| fmt.Println("The image doesn't have any tags local.") | ||
| return nil | ||
| } | ||
|
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| hubTags, hubTagsErr := docker.GetAllTags(args[0]) | ||
|
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| fmt.Printf("Local tags for %s:\n\n", args[0]) | ||
| fmt.Println(" Tag Docker Hub Status") | ||
| fmt.Println("========== ===================") | ||
| for _, tag := range localTags { | ||
|
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| status := "local-only" | ||
|
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| if hubTagsErr == nil { | ||
|
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| for _, hubTag := range hubTags { | ||
| if tag.Name == hubTag.Name { | ||
|
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| if hubTag.Digest == "" { | ||
| status = "can't check" | ||
| } else if tag.Digest == hubTag.Digest { | ||
| status = "synced" | ||
| } else if tag.Date.After(hubTag.Date) { | ||
| status = "newer" | ||
| } else if tag.Date.Equal(hubTag.Date) { | ||
| status = "synced" | ||
| } else if tag.Date.Before(hubTag.Date) { | ||
| status = "older" | ||
| } | ||
|
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| break | ||
| } | ||
| } | ||
| } | ||
|
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| fmt.Printf(" %-10s %5s\n", tag.Name, status) | ||
| } | ||
|
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| // compare digest and.... creation time? | ||
|
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| return nil | ||
| }, | ||
| } | ||
|
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| func init() { | ||
| tagsCmd.AddCommand(statusCmd) | ||
|
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| // Here you will define your flags and configuration settings. | ||
|
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| // Cobra supports Persistent Flags which will work for this command | ||
| // and all subcommands, e.g.: | ||
| // statusCmd.PersistentFlags().String("foo", "", "A help for foo") | ||
|
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| // Cobra supports local flags which will only run when this command | ||
| // is called directly, e.g.: | ||
| // statusCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle") | ||
| } |
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