feat(deploy): load compose project

cmd/uncloud/deploy.go

@@ -3,17 +3,16 @@ package main
 import (
 	"context"
 	"fmt"
+	composecli "github.com/compose-spec/compose-go/v2/cli"
+	"github.com/compose-spec/compose-go/v2/graph"
+	"github.com/compose-spec/compose-go/v2/types"
 	"github.com/spf13/cobra"
 	"uncloud/internal/cli"
 )
 
 type deployOptions struct {
-	//configPath string
+	files    []string
 	services []string
-	//machines   []string
-	//env        []string
-	//envFile    string
-	//projectDir string
 
 	cluster string
 }
@@ -36,12 +35,65 @@ func NewDeployCommand() *cobra.Command {
 		},
 	}
 
-	cmd.Flags().StringVarP(&opts.cluster, "cluster", "c", "", "Name of the cluster to deploy to (default is the current cluster)")
+	cmd.Flags().StringSliceVarP(&opts.files, "file", "f", nil,
+		"One or more Compose files to deploy services from. (default compose.yaml)")
+	cmd.Flags().StringVarP(&opts.cluster, "cluster", "c", "",
+		"Name of the cluster to deploy to (default is the current cluster)")
 
 	return cmd
 }
 
-// deploy parses the compose file and deploys the services to the Uncloud cluster.
+// deploy parses the Compose file(s) and deploys the services.
 func deploy(ctx context.Context, uncli *cli.CLI, opts deployOptions) error {
-	return fmt.Errorf("not implemented")
+	project, err := loadComposeProject(ctx, opts)
+	if err != nil {
+		return err
+	}
+
+	projectYAML, err := project.MarshalYAML()
+	if err != nil {
+		return err
+	}
+
+	fmt.Println(string(projectYAML))
+
+	// TODO: move to ComposeDeployment.
+	err = graph.InDependencyOrder(ctx, project,
+		// TODO: properly handle dependency conditions.
+		func(ctx context.Context, name string, service types.ServiceConfig) error {
+			service, err := project.GetService(name)
+			if err != nil {
+				return err
+			}
+
+			fmt.Println(service.Name)
+
+			return nil
+		})
+
+	return nil
+}
+
+func loadComposeProject(ctx context.Context, opts deployOptions) (*types.Project, error) {
+	options, err := composecli.NewProjectOptions(
+		opts.files,
+		// First apply os.Environment, always wins.
+		composecli.WithOsEnv,
+		// Read dot env file to populate project environment.
+		composecli.WithDotEnv,
+		// Get compose file path set by COMPOSE_FILE.
+		composecli.WithConfigFileEnv,
+		// If none was selected, get default compose.yaml file from current dir or parent folders.
+		composecli.WithDefaultConfigPath,
+	)
+	if err != nil {
+		return nil, fmt.Errorf("create compose parser options: %w", err)
+	}
+
+	project, err := options.LoadProject(ctx)
+	if err != nil {
+		return nil, fmt.Errorf("load compose file(s): %w", err)
+	}
+
+	return project, nil
 }