feat: add shim plugin

plugins/shim.go

@@ -0,0 +1,76 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+
+	"C"
+
+	"github.com/vanilla-os/vib/api"
+)
+import (
+	"os"
+	"os/exec"
+	"path/filepath"
+)
+
+type ShimModule struct {
+	Name     string `json:"name"`
+	Type     string `json:"type"`
+	ShimType string `json:"shimtype"`
+}
+
+//export PlugInfo
+func PlugInfo() *C.char {
+	plugininfo := &api.PluginInfo{Name: "shim", Type: api.BuildPlugin}
+	pluginjson, err := json.Marshal(plugininfo)
+	if err != nil {
+		return C.CString(fmt.Sprintf("ERROR: %s", err.Error()))
+	}
+	return C.CString(string(pluginjson))
+}
+
+//export BuildModule
+func BuildModule(moduleInterface *C.char, recipeInterface *C.char) *C.char {
+	var module *ShimModule
+	var recipe *api.Recipe
+
+	err := json.Unmarshal([]byte(C.GoString(moduleInterface)), &module)
+	if err != nil {
+		return C.CString(fmt.Sprintf("ERROR: %s", err.Error()))
+	}
+
+	err = json.Unmarshal([]byte(C.GoString(recipeInterface)), &recipe)
+	if err != nil {
+		return C.CString(fmt.Sprintf("ERROR: %s", err.Error()))
+	}
+
+	fmt.Printf("[SHIM] Starting plugin: %s\n", module.ShimType)
+
+	dataDir, err := os.MkdirTemp("", fmt.Sprintf("*-vibshim-%s", module.ShimType))
+	if err != nil {
+		return C.CString(fmt.Sprintf("ERROR: %s", err.Error()))
+	}
+	defer os.RemoveAll(dataDir)
+
+	pluginCommand := fmt.Sprintf("%s/%s", recipe.PluginPath, module.ShimType)
+	modulePath := filepath.Join(dataDir, "moduleInterface")
+	recipePath := filepath.Join(dataDir, "recipeInterface")
+
+	err = os.WriteFile(modulePath, []byte(C.GoString(moduleInterface)), 0o777)
+	if err != nil {
+		return C.CString(fmt.Sprintf("ERROR: %s", err.Error()))
+	}
+	err = os.WriteFile(recipePath, []byte(C.GoString(recipeInterface)), 0o777)
+	if err != nil {
+		return C.CString(fmt.Sprintf("ERROR: %s", err.Error()))
+	}
+
+	out, err := exec.Command(pluginCommand, modulePath, recipePath).Output()
+	if err != nil {
+		return C.CString(fmt.Sprintf("ERROR: %s", err.Error()))
+	}
+	return C.CString(string(out))
+}
+
+func main() {}