|
| 1 | +/* |
| 2 | + Copyright 2020 The Compose Specification Authors. |
| 3 | +
|
| 4 | + Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | + you may not use this file except in compliance with the License. |
| 6 | + You may obtain a copy of the License at |
| 7 | +
|
| 8 | + http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | +
|
| 10 | + Unless required by applicable law or agreed to in writing, software |
| 11 | + distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | + See the License for the specific language governing permissions and |
| 14 | + limitations under the License. |
| 15 | +*/ |
| 16 | + |
| 17 | +package internal |
| 18 | + |
| 19 | +import ( |
| 20 | + "context" |
| 21 | + "fmt" |
| 22 | + "os" |
| 23 | + |
| 24 | + "github.com/docker/cli/cli/streams" |
| 25 | + "github.com/docker/docker/api/types" |
| 26 | + "github.com/docker/docker/api/types/filters" |
| 27 | + "github.com/docker/docker/client" |
| 28 | + "github.com/docker/docker/pkg/jsonmessage" |
| 29 | +) |
| 30 | + |
| 31 | +func PullImageIfWithout(cli *client.Client, ctx context.Context, name string) error { |
| 32 | + args := filters.NewArgs(filters.Arg("reference", name)) |
| 33 | + images, err := cli.ImageList(ctx, types.ImageListOptions{All: true, Filters: args}) |
| 34 | + if err != nil { |
| 35 | + return err |
| 36 | + } |
| 37 | + if len(images) == 0 { |
| 38 | + fmt.Println("pulling image: " + name) |
| 39 | + res, err := cli.ImagePull(ctx, name, types.ImagePullOptions{}) |
| 40 | + if err != nil { |
| 41 | + return err |
| 42 | + } |
| 43 | + |
| 44 | + out := streams.NewOut(os.Stdout) |
| 45 | + err = jsonmessage.DisplayJSONMessagesToStream(res, out, nil) |
| 46 | + if err != nil { |
| 47 | + return err |
| 48 | + } |
| 49 | + } |
| 50 | + return nil |
| 51 | +} |
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