Fix problems and adding functionnalities

Many fixes and enhancements:

- Add icon option
- Add env file managment
- Ordering compose parsing options
- Fix path with underscores
- Fix image and tag discovery
- Better documentation for labels

parser/main.go

@@ -2,6 +2,9 @@
 package parser
 
 import (
+	"log"
+	"path/filepath"
+
 	"github.com/compose-spec/compose-go/cli"
 	"github.com/compose-spec/compose-go/types"
 )
@@ -12,6 +15,7 @@ func init() {
 		"compose.katenary.yml",
 		"compose.katenary.yaml",
 	}, cli.DefaultOverrideFileNames...)
+	// add podman-compose files
 	cli.DefaultOverrideFileNames = append(cli.DefaultOverrideFileNames,
 		[]string{
 			"podman-compose.katenary.yml",
@@ -22,18 +26,31 @@ func init() {
 }
 
 // Parse compose files and return a project. The project is parsed with dotenv, osenv and profiles.
-func Parse(profiles []string, dockerComposeFile ...string) (*types.Project, error) {
+func Parse(profiles []string, envFiles []string, dockerComposeFile ...string) (*types.Project, error) {
 	if len(dockerComposeFile) == 0 {
 		cli.DefaultOverrideFileNames = append(cli.DefaultOverrideFileNames, dockerComposeFile...)
 	}
 
+	log.Println("Loading compose files: ", cli.DefaultOverrideFileNames)
+
+	// resolve absolute paths of envFiles
+	for i := range envFiles {
+		var err error
+		envFiles[i], err = filepath.Abs(envFiles[i])
+		if err != nil {
+			log.Fatal(err)
+		}
+	}
+	log.Println("Loading env files: ", envFiles)
+
 	options, err := cli.NewProjectOptions(nil,
 		cli.WithProfiles(profiles),
+		cli.WithInterpolation(true),
 		cli.WithDefaultConfigPath,
+		cli.WithEnvFiles(envFiles...),
 		cli.WithOsEnv,
 		cli.WithDotEnv,
 		cli.WithNormalization(true),
-		cli.WithInterpolation(true),
 		cli.WithResolvedPaths(false),
 	)
 	if err != nil {