make DRYRUN_PREFIX a display attribute, move DryRunClient out of pkg/api

Signed-off-by: Nicolas De Loof <nicolas.deloof@gmail.com>

cmd/display/dryrun.go

@@ -0,0 +1,21 @@
+/*
+   Copyright 2020 Docker Compose CLI 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 display
+
+const (
+	DRYRUN_PREFIX = " DRY-RUN MODE - "
+)

cmd/display/plain.go

@@ -41,7 +41,7 @@ func (p *plainWriter) Start(ctx context.Context, operation string) {
 func (p *plainWriter) Event(e api.Resource) {
 	prefix := ""
 	if p.dryRun {
-		prefix = api.DRYRUN_PREFIX
+		prefix = DRYRUN_PREFIX
 	}
 	_, _ = fmt.Fprintln(p.out, prefix, e.ID, e.Text, e.Details)
 }

cmd/display/tty.go

@@ -286,7 +286,7 @@ func (w *ttyWriter) lineText(t task, pad string, terminalWidth, statusPadding in
 	}
 	prefix := ""
 	if dryRun {
-		prefix = PrefixColor(api.DRYRUN_PREFIX)
+		prefix = PrefixColor(DRYRUN_PREFIX)
 	}
 
 	elapsed := endTime.Sub(t.startTime).Seconds()

pkg/compose/compose.go

@@ -31,6 +31,7 @@ import (
 	"github.com/docker/cli/cli/config/configfile"
 	"github.com/docker/cli/cli/flags"
 	"github.com/docker/cli/cli/streams"
+	"github.com/docker/compose/v2/pkg/dryrun"
 	"github.com/docker/docker/api/types/container"
 	"github.com/docker/docker/api/types/filters"
 	"github.com/docker/docker/api/types/network"
@@ -173,7 +174,7 @@ func WithDryRun(s *composeService) error {
 	options := flags.NewClientOptions()
 	options.Context = s.dockerCli.CurrentContext()
 	err = cli.Initialize(options, command.WithInitializeClient(func(cli *command.DockerCli) (client.APIClient, error) {
-		return api.NewDryRunClient(s.apiClient(), s.dockerCli)
+		return dryrun.NewDryRunClient(s.apiClient(), s.dockerCli)
 	}))
 	if err != nil {
 		return err

pkg/dryrun/dryrunclient.go

@@ -14,7 +14,7 @@
    limitations under the License.
 */
 
-package api
+package dryrun
 
 import (
 	"bytes"
@@ -50,10 +50,6 @@ import (
 	specs "github.com/opencontainers/image-spec/specs-go/v1"
 )
 
-const (
-	DRYRUN_PREFIX = " DRY-RUN MODE - "
-)
-
 var _ client.APIClient = &DryRunClient{}
 
 // DryRunClient implements APIClient by delegating to implementation functions. This allows lazy init and per-method overrides
@@ -192,28 +188,17 @@ func (d *DryRunClient) ContainerUnpause(ctx context.Context, container string) e
 func (d *DryRunClient) CopyFromContainer(ctx context.Context, container, srcPath string) (io.ReadCloser, containerType.PathStat, error) {
 	rc := io.NopCloser(strings.NewReader(""))
 	if _, err := d.ContainerStatPath(ctx, container, srcPath); err != nil {
-		return rc, containerType.PathStat{}, fmt.Errorf(" %s Could not find the file %s in container %s", DRYRUN_PREFIX, srcPath, container)
+		return rc, containerType.PathStat{}, fmt.Errorf("could not find the file %s in container %s", srcPath, container)
 	}
 	return rc, containerType.PathStat{}, nil
 }
 
 func (d *DryRunClient) CopyToContainer(ctx context.Context, container, path string, content io.Reader, options containerType.CopyToContainerOptions) error {
-	if _, err := d.ContainerStatPath(ctx, container, path); err != nil {
-		return fmt.Errorf(" %s Could not find the file %s in container %s", DRYRUN_PREFIX, path, container)
-	}
 	return nil
 }
 
 func (d *DryRunClient) ImageBuild(ctx context.Context, reader io.Reader, options build.ImageBuildOptions) (build.ImageBuildResponse, error) {
-	jsonMessage, err := json.Marshal(&jsonmessage.JSONMessage{
+	rc := io.NopCloser(bytes.NewReader(nil))
-		Status:   fmt.Sprintf("%[1]sSuccessfully built: dryRunID\n%[1]sSuccessfully tagged: %[2]s\n", DRYRUN_PREFIX, options.Tags[0]),
-		Progress: &jsonmessage.JSONProgress{},
-		ID:       "",
-	})
-	if err != nil {
-		return build.ImageBuildResponse{}, err
-	}
-	rc := io.NopCloser(bytes.NewReader(jsonMessage))
 
 	return build.ImageBuildResponse{
 		Body: rc,
@@ -321,12 +306,10 @@ func (d *DryRunClient) ContainerExecCreate(ctx context.Context, container string
 }
 
 func (d *DryRunClient) ContainerExecStart(ctx context.Context, execID string, config containerType.ExecStartOptions) error {
-	v, ok := d.execs.LoadAndDelete(execID)
+	_, ok := d.execs.LoadAndDelete(execID)
 	if !ok {
 		return fmt.Errorf("invalid exec ID %q", execID)
 	}
-	details := v.(execDetails)
-	fmt.Printf("%sExecuting command %q in %s (detached mode)\n", DRYRUN_PREFIX, details.command, details.container)
 	return nil
 }