WIP - trying to handle the environment manually

Signed-off-by: Juan Bustamante <jbustamante@vmware.com>

pkg/cnb/env_vars.go

@@ -1,6 +1,7 @@
 package cnb
 
 import (
+	"fmt"
 	"io/ioutil"
 	"os"
 	"path"
@@ -33,5 +34,23 @@ type buildEnvVariable struct {
 }
 
 type envBuildVariable struct {
-	Env []envVariable `toml:"build"`
+	Env []envVariable
+}
+
+func (a *envBuildVariable) UnmarshalTOML(f interface{}) error {
+	if buildEnv, ok := f.(map[string]interface{}); ok {
+		if len(buildEnv) == 1 {
+			// case env.build
+			if envs, ok := buildEnv["build"].([]map[string]interface{}); ok {
+				fmt.Println(envs)
+			}
+		} else {
+			// return error
+		}
+	}
+	if envs, ok := f.([]map[string]interface{}); ok {
+		// case env
+		fmt.Println(envs)
+	}
+	return nil
 }

pkg/cnb/project_descriptor.go

@@ -48,7 +48,8 @@ func parseProjectDescriptor(file string, logger *log.Logger) (descriptorV2, erro
 	var d descriptorV2
 	if _, err := toml.DecodeFile(file, &d); err != nil {
 		var dV2NoSpec descriptorV2NoSpec
-		if _, err2 := toml.DecodeFile(file, &dV2NoSpec); err2 != nil {
+		data, err := os.ReadFile(file)
+		if err2 := toml.Unmarshal(data, &dV2NoSpec); err2 != nil {
 			logger.Println(fmt.Sprintf("warning: project descriptor '%s' could not be parsed, error '%v'", file, err))
 			return descriptorV2{}, err2
 		}

pkg/cnb/project_descriptor_test.go

@@ -271,8 +271,7 @@ value = "valueC"
 # check that later keys override previous ones
 [[io.buildpacks.env]]
 name = "keyC"
-value = "valueAnotherC"
-				`), 0644)
+value = "valueAnotherC"`), 0644)
 							})
 							it("writes all env var files to the platform dir", func() {
 								assert.Nil(t, cnb.ProcessProjectDescriptor(appDir, descriptorPath, platformDir, logger))