introduce compose build command

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

cli/cmd/compose/build.go

@@ -0,0 +1,67 @@
+/*
+   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 compose
+
+import (
+	"context"
+
+	"github.com/compose-spec/compose-go/cli"
+	"github.com/spf13/cobra"
+
+	"github.com/docker/compose-cli/api/client"
+	"github.com/docker/compose-cli/progress"
+)
+
+type buildOptions struct {
+	composeOptions
+}
+
+func buildCommand() *cobra.Command {
+	opts := buildOptions{}
+	buildCmd := &cobra.Command{
+		Use: "build [SERVICE...]",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			return runBuild(cmd.Context(), opts, args)
+		},
+	}
+	return buildCmd
+}
+
+func runBuild(ctx context.Context, opts buildOptions, services []string) error {
+	c, err := client.New(ctx)
+	if err != nil {
+		return err
+	}
+
+	_, err = progress.Run(ctx, func(ctx context.Context) (string, error) {
+		options, err := opts.toProjectOptions()
+		if err != nil {
+			return "", err
+		}
+		project, err := cli.ProjectFromOptions(options)
+		if err != nil {
+			return "", err
+		}
+
+		err = filter(project, services)
+		if err != nil {
+			return "", err
+		}
+		return "", c.ComposeService().Build(ctx, project)
+	})
+	return err
+}

cli/cmd/compose/compose.go

@@ -25,6 +25,7 @@ import (
 	"github.com/spf13/pflag"
 
 	"github.com/docker/compose-cli/api/client"
+	"github.com/docker/compose-cli/context/store"
 	"github.com/docker/compose-cli/errdefs"
 )
 
@@ -89,6 +90,10 @@ func Command(contextType string) *cobra.Command {
 		convertCommand(),
 	)
 
+	if contextType == store.LocalContextType {
+		command.AddCommand(buildCommand())
+	}
+
 	return command
 }