fix: improve app check

See coop-cloud/organising#446

pkg/config/env.go

@@ -9,6 +9,7 @@ import (
 	"path"
 	"path/filepath"
 	"regexp"
+	"sort"
 	"strings"
 
 	"github.com/Autonomic-Cooperative/godotenv"
@@ -179,3 +180,42 @@ func ReadAbraShEnvVars(abraSh string) (map[string]string, error) {
 
 	return envVars, nil
 }
+
+type EnvVar struct {
+	Name    string
+	Present bool
+}
+
+func CheckEnv(app App) ([]EnvVar, error) {
+	var envVars []EnvVar
+
+	envSamplePath := path.Join(RECIPES_DIR, app.Recipe, ".env.sample")
+	if _, err := os.Stat(envSamplePath); err != nil {
+		if os.IsNotExist(err) {
+			return envVars, fmt.Errorf("%s does not exist?", envSamplePath)
+		}
+		return envVars, err
+	}
+
+	envSample, err := ReadEnv(envSamplePath)
+	if err != nil {
+		return envVars, err
+	}
+
+	var keys []string
+	for key := range envSample {
+		keys = append(keys, key)
+	}
+
+	sort.Strings(keys)
+
+	for _, key := range keys {
+		if _, ok := app.Env[key]; ok {
+			envVars = append(envVars, EnvVar{Name: key, Present: true})
+		} else {
+			envVars = append(envVars, EnvVar{Name: key, Present: false})
+		}
+	}
+
+	return envVars, nil
+}