127 lines
3.7 KiB
Go
127 lines
3.7 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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"github.com/compose-spec/compose-go/v2/types"
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"github.com/docker/compose/v2/cmd/formatter"
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"github.com/docker/cli/cli/command"
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"github.com/docker/compose/v2/internal/locker"
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"github.com/docker/compose/v2/pkg/api"
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"github.com/sirupsen/logrus"
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"github.com/spf13/cobra"
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)
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type watchOptions struct {
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*ProjectOptions
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prune bool
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noUp bool
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}
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func watchCommand(p *ProjectOptions, dockerCli command.Cli, backend api.Service) *cobra.Command {
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watchOpts := watchOptions{
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ProjectOptions: p,
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}
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buildOpts := buildOptions{
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ProjectOptions: p,
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}
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cmd := &cobra.Command{
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Use: "watch [SERVICE...]",
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Short: "Watch build context for service and rebuild/refresh containers when files are updated",
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PreRunE: Adapt(func(ctx context.Context, args []string) error {
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return nil
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}),
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RunE: AdaptCmd(func(ctx context.Context, cmd *cobra.Command, args []string) error {
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if cmd.Parent().Name() == "alpha" {
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logrus.Warn("watch command is now available as a top level command")
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}
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return runWatch(ctx, dockerCli, backend, watchOpts, buildOpts, args)
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}),
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ValidArgsFunction: completeServiceNames(dockerCli, p),
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}
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cmd.Flags().BoolVar(&buildOpts.quiet, "quiet", false, "hide build output")
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cmd.Flags().BoolVar(&watchOpts.prune, "prune", true, "Prune dangling images on rebuild")
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cmd.Flags().BoolVar(&watchOpts.noUp, "no-up", false, "Do not build & start services before watching")
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return cmd
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}
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func runWatch(ctx context.Context, dockerCli command.Cli, backend api.Service, watchOpts watchOptions, buildOpts buildOptions, services []string) error {
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project, _, err := watchOpts.ToProject(ctx, dockerCli, services)
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if err != nil {
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return err
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}
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if err := applyPlatforms(project, true); err != nil {
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return err
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}
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build, err := buildOpts.toAPIBuildOptions(nil)
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if err != nil {
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return err
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}
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// validation done -- ensure we have the lockfile for this project before doing work
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l, err := locker.NewPidfile(project.Name)
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if err != nil {
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return fmt.Errorf("cannot take exclusive lock for project %q: %w", project.Name, err)
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}
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if err := l.Lock(); err != nil {
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return fmt.Errorf("cannot take exclusive lock for project %q: %w", project.Name, err)
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}
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if !watchOpts.noUp {
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for index, service := range project.Services {
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if service.Build != nil && service.Develop != nil {
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service.PullPolicy = types.PullPolicyBuild
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}
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project.Services[index] = service
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}
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upOpts := api.UpOptions{
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Create: api.CreateOptions{
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Build: &build,
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Services: services,
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RemoveOrphans: false,
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Recreate: api.RecreateDiverged,
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RecreateDependencies: api.RecreateNever,
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Inherit: true,
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QuietPull: buildOpts.quiet,
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},
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Start: api.StartOptions{
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Project: project,
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Attach: nil,
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Services: services,
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},
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}
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if err := backend.Up(ctx, project, upOpts); err != nil {
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return err
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}
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}
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consumer := formatter.NewLogConsumer(ctx, dockerCli.Out(), dockerCli.Err(), false, false, false)
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return backend.Watch(ctx, project, api.WatchOptions{
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Build: &build,
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LogTo: consumer,
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Prune: watchOpts.prune,
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Services: services,
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})
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}
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