Merge pull request #271 from depot/exec

Add engine detection to `exec`

pkg/cmd/exec/exec.go

@@ -60,6 +60,14 @@ func NewCmdExec(dockerCli command.Cli) *cobra.Command {
 			ProjectId: &projectID,
 			Options:   []*cliv1.BuildOptions{{Command: cliv1.Command_COMMAND_EXEC}},
 		}
+
+		if len(args) > 0 && args[0] == "dagger" {
+			daggerVersion, _ := helpers.ResolveDaggerVersion()
+			if daggerVersion != "" {
+				req = helpers.NewDaggerRequest(projectID, daggerVersion)
+			}
+		}
+
 		build, err := helpers.BeginBuild(ctx, req, token)
 		if err != nil {
 			return fmt.Errorf("unable to begin build: %w", err)

pkg/helpers/build.go

@@ -127,3 +127,17 @@ func NewBakeRequest(project string, opts map[string]buildx.Options, features Usi
 		Options:   targets,
 	}
 }
+
+func NewDaggerRequest(projectID, daggerVersion string) *cliv1.CreateBuildRequest {
+	return &cliv1.CreateBuildRequest{
+		ProjectId: &projectID,
+		Options:   []*cliv1.BuildOptions{{Command: cliv1.Command_COMMAND_DAGGER}},
+		RequiredEngine: &cliv1.CreateBuildRequest_RequiredEngine{
+			Engine: &cliv1.CreateBuildRequest_RequiredEngine_Dagger{
+				Dagger: &cliv1.CreateBuildRequest_RequiredEngine_DaggerEngine{
+					Version: daggerVersion,
+				},
+			},
+		},
+	}
+}

pkg/helpers/dagger.go

@@ -0,0 +1,25 @@
+package helpers
+
+import (
+	"fmt"
+	"os/exec"
+	"strings"
+)
+
+func ResolveDaggerVersion() (string, error) {
+	daggerPath, err := exec.LookPath("dagger")
+	if err != nil {
+		return "", err
+	}
+
+	output, err := exec.Command(daggerPath, "version").Output()
+	if err != nil {
+		return "", err
+	}
+
+	parsed := strings.Split(string(output), " ")
+	if len(parsed) < 2 {
+		return "", fmt.Errorf("unable able to parse dagger version")
+	}
+	return parsed[1], nil
+}