482b622282
Replaces the use of cli/command.CopyToFile with an atomicwriter, as cli/command.CopyToFile will be deprecated in the next release. Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
108 lines
2.7 KiB
Go
108 lines
2.7 KiB
Go
/*
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Copyright 2020 Docker Compose CLI authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package compose
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import (
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"context"
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"fmt"
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"io"
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"strings"
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"github.com/docker/cli/cli/command"
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"github.com/docker/compose/v2/pkg/api"
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"github.com/docker/compose/v2/pkg/progress"
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"github.com/moby/sys/atomicwriter"
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)
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func (s *composeService) Export(ctx context.Context, projectName string, options api.ExportOptions) error {
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return progress.RunWithTitle(ctx, func(ctx context.Context) error {
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return s.export(ctx, projectName, options)
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}, s.stdinfo(), "Exporting")
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}
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func (s *composeService) export(ctx context.Context, projectName string, options api.ExportOptions) error {
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projectName = strings.ToLower(projectName)
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container, err := s.getSpecifiedContainer(ctx, projectName, oneOffInclude, false, options.Service, options.Index)
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if err != nil {
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return err
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}
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if options.Output == "" {
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if s.dockerCli.Out().IsTerminal() {
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return fmt.Errorf("output option is required when exporting to terminal")
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}
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} else if err := command.ValidateOutputPath(options.Output); err != nil {
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return fmt.Errorf("failed to export container: %w", err)
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}
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clnt := s.dockerCli.Client()
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w := progress.ContextWriter(ctx)
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name := getCanonicalContainerName(container)
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msg := fmt.Sprintf("export %s to %s", name, options.Output)
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w.Event(progress.Event{
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ID: name,
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Text: msg,
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Status: progress.Working,
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StatusText: "Exporting",
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})
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responseBody, err := clnt.ContainerExport(ctx, container.ID)
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if err != nil {
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return err
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}
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defer func() {
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if err := responseBody.Close(); err != nil {
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w.Event(progress.Event{
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ID: name,
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Text: msg,
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Status: progress.Error,
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StatusText: fmt.Sprintf("Failed to close response body: %v", err),
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})
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}
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}()
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if !s.dryRun {
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if options.Output == "" {
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_, err := io.Copy(s.dockerCli.Out(), responseBody)
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return err
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} else {
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writer, err := atomicwriter.New(options.Output, 0o600)
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if err != nil {
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return err
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}
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defer func() { _ = writer.Close() }()
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_, err = io.Copy(writer, responseBody)
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return err
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}
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}
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w.Event(progress.Event{
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ID: name,
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Text: msg,
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Status: progress.Done,
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StatusText: "Exported",
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})
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return nil
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}
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