[RFC] Allow tyson config

devbox.tson

@@ -0,0 +1,7 @@
+import otherConfig from './devbox.json'
+
+otherConfig.shell.scripts["tyson-script"] = "echo hello TySON world"
+
+export default {
+  ...otherConfig
+}

internal/devconfig/config.go

@@ -21,7 +21,10 @@ import (
 	"go.jetpack.io/devbox/internal/impl/shellcmd"
 )
 
-const DefaultName = "devbox.json"
+const (
+	DefaultName      = "devbox.json"
+	DefaultTySONName = "devbox.tson"
+)
 
 // Config defines a devbox environment as JSON.
 type Config struct {

internal/devconfig/init.go

@@ -4,15 +4,18 @@
 package devconfig
 
 import (
+	"context"
 	"errors"
 	"fmt"
 	"io"
 	"os"
+	"os/exec"
 	"path/filepath"
 	"strings"
 
 	"github.com/fatih/color"
 
+	"go.jetpack.io/devbox/internal/devpkg/pkgtype"
 	"go.jetpack.io/devbox/internal/initrec"
 )
 
@@ -62,3 +65,28 @@ func initConfigFile(path string) (created bool, err error) {
 	}
 	return true, nil
 }
+
+func Open(projectDir string) (*Config, error) {
+	cfgPath := filepath.Join(projectDir, DefaultName)
+
+	if _, err := os.Stat(filepath.Join(projectDir, DefaultTySONName)); err == nil {
+		paths, err := pkgtype.RunXClient().Install(context.TODO(), "jetpack-io/tyson")
+		if err != nil {
+			return nil, err
+		}
+		binPath := filepath.Join(paths[0], "tyson")
+		tmpFile, err := os.CreateTemp("", "*.json")
+		if err != nil {
+			return nil, err
+		}
+		cmd := exec.Command(binPath, "eval", filepath.Join(projectDir, DefaultTySONName))
+		cmd.Stderr = os.Stderr
+		cmd.Stdout = tmpFile
+		if err = cmd.Run(); err != nil {
+			return nil, err
+		}
+		cfgPath = tmpFile.Name()
+	}
+
+	return Load(cfgPath)
+}

internal/impl/devbox.go

@@ -78,9 +78,8 @@ func Open(opts *devopt.Opts) (*Devbox, error) {
 	if err != nil {
 		return nil, err
 	}
-	cfgPath := filepath.Join(projectDir, devconfig.DefaultName)
 
-	cfg, err := devconfig.Load(cfgPath)
+	cfg, err := devconfig.Open(projectDir)
 	if err != nil {
 		return nil, errors.WithStack(err)
 	}