chore(fixes): Unwrap yaml before converting and fix volume name variable

2 fixes:

- the first problem to resolve is that some volume names can have "-" in
the name. We now replace them by "_"
- the second problem is that k8s.io library truncates the lines and so
we cannot split the files by lines. We now "unwrap" the result.

TODO: globalize the `yaml.Marshal()` code to our own specific function

generator/configMap.go

@@ -232,5 +232,9 @@ func (c *ConfigMap) SetData(data map[string]string) {
 
 // Yaml returns the yaml representation of the configmap
 func (c *ConfigMap) Yaml() ([]byte, error) {
-	return yaml.Marshal(c)
+	if o, err := yaml.Marshal(c); err != nil {
+		return nil, err
+	} else {
+		return UnWrapTPL(o), nil
+	}
 }

generator/cronJob.go

@@ -1,6 +1,8 @@
 package generator
 
 import (
+	"katenary/generator/labelStructs"
+	"katenary/utils"
 	"log"
 	"strings"
 
@@ -9,9 +11,6 @@ import (
 	corev1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"sigs.k8s.io/yaml"
-
-	"katenary/generator/labelStructs"
-	"katenary/utils"
 )
 
 // only used to check interface implementation
@@ -120,5 +119,9 @@ func (c *CronJob) Filename() string {
 //
 // Implements the Yaml interface.
 func (c *CronJob) Yaml() ([]byte, error) {
-	return yaml.Marshal(c)
+	if o, err := yaml.Marshal(c); err != nil {
+		return nil, err
+	} else {
+		return UnWrapTPL(o), nil
+	}
 }

generator/deployment.go

@@ -370,6 +370,7 @@ func (d *Deployment) Yaml() ([]byte, error) {
 	if err != nil {
 		return nil, err
 	}
+	y = UnWrapTPL(y)
 
 	// for each volume mount, add a condition "if values has persistence"
 	changing := false
@@ -399,6 +400,7 @@ func (d *Deployment) Yaml() ([]byte, error) {
 		if strings.Contains(volume, "mountPath: ") {
 			spaces = strings.Repeat(" ", utils.CountStartingSpaces(volume))
 			varName := d.volumeMap[volumeName]
+			varName = strings.ReplaceAll(varName, "-", "_")
 			content[line] = spaces + `{{- if .Values.` + serviceName + `.persistence.` + varName + `.enabled }}` + "\n" + volume
 			changing = true
 		}
@@ -442,6 +444,7 @@ func (d *Deployment) Yaml() ([]byte, error) {
 		if strings.Contains(line, "- name: ") && inVolumes {
 			spaces = strings.Repeat(" ", utils.CountStartingSpaces(line))
 			varName := d.volumeMap[volumeName]
+			varName = strings.ReplaceAll(varName, "-", "_")
 			content[i] = spaces + `{{- if .Values.` + serviceName + `.persistence.` + varName + `.enabled }}` + "\n" + line
 			changing = true
 		}

generator/generator.go

@@ -271,6 +271,7 @@ func buildVolumes(service types.ServiceConfig, chart *HelmChart, deployments map
 		}
 		switch v.Type {
 		case "volume":
+			v.Source = strings.ReplaceAll(v.Source, "-", "_")
 			pvc := NewVolumeClaim(service, v.Source, appName)
 
 			// if the service is integrated in another deployment, we need to add the volume

generator/ingress.go

@@ -1,16 +1,15 @@
 package generator
 
 import (
+	"katenary/generator/labelStructs"
+	"katenary/utils"
 	"log"
 	"strings"
 
 	"github.com/compose-spec/compose-go/types"
 	networkv1 "k8s.io/api/networking/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"sigs.k8s.io/yaml"
-
-	"katenary/generator/labelStructs"
-	"katenary/utils"
 )
 
 var _ Yaml = (*Ingress)(nil)
@@ -129,6 +128,7 @@ func (ingress *Ingress) Yaml() ([]byte, error) {
 	if err != nil {
 		return nil, err
 	}
+	ret = UnWrapTPL(ret)
 
 	lines := strings.Split(string(ret), "\n")
 	out := []string{

generator/rbac.go

@@ -1,13 +1,13 @@
 package generator
 
 import (
+	"katenary/utils"
+
 	"github.com/compose-spec/compose-go/types"
 	corev1 "k8s.io/api/core/v1"
 	rbacv1 "k8s.io/api/rbac/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"sigs.k8s.io/yaml"
-
-	"katenary/utils"
 )
 
 var (
@@ -121,7 +121,11 @@ func (r *Role) Filename() string {
 }
 
 func (r *Role) Yaml() ([]byte, error) {
-	return yaml.Marshal(r)
+	if o, err := yaml.Marshal(r); err != nil {
+		return nil, err
+	} else {
+		return UnWrapTPL(o), nil
+	}
 }
 
 // ServiceAccount is a kubernetes ServiceAccount.

generator/secret.go

@@ -3,14 +3,13 @@ package generator
 import (
 	"encoding/base64"
 	"fmt"
+	"katenary/utils"
 	"strings"
 
 	"github.com/compose-spec/compose-go/types"
 	corev1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"sigs.k8s.io/yaml"
-
-	"katenary/utils"
 )
 
 var (
@@ -102,6 +101,7 @@ func (s *Secret) Yaml() ([]byte, error) {
 	if err != nil {
 		return nil, err
 	}
+	y = UnWrapTPL(y)
 
 	// replace the b64 value by the real value
 	for _, value := range s.Data {

generator/service.go

@@ -1,6 +1,7 @@
 package generator
 
 import (
+	"katenary/utils"
 	"regexp"
 	"strings"
 
@@ -9,8 +10,6 @@ import (
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/util/intstr"
 	"sigs.k8s.io/yaml"
-
-	"katenary/utils"
 )
 
 var _ Yaml = (*Service)(nil)
@@ -82,6 +81,11 @@ func (s *Service) Filename() string {
 // Yaml returns the yaml representation of the service.
 func (s *Service) Yaml() ([]byte, error) {
 	y, err := yaml.Marshal(s)
+	if err != nil {
+		return nil, err
+	}
+	y = UnWrapTPL(y)
+
 	lines := []string{}
 	for _, line := range strings.Split(string(y), "\n") {
 		if regexp.MustCompile(`^\s*loadBalancer:\s*`).MatchString(line) {

generator/utils.go

@@ -1,16 +1,18 @@
 package generator
 
 import (
+	"katenary/generator/labelStructs"
+	"katenary/utils"
+	"regexp"
 	"strconv"
 	"strings"
 
 	"github.com/compose-spec/compose-go/types"
 	corev1 "k8s.io/api/core/v1"
-
-	"katenary/generator/labelStructs"
-	"katenary/utils"
 )
 
+var regexpLineWrap = regexp.MustCompile(`\n\s+}}`)
+
 // findDeployment finds the corresponding target deployment for a service.
 func findDeployment(serviceName string, deployments map[string]*Deployment) *Deployment {
 	for _, d := range deployments {
@@ -77,3 +79,8 @@ func isIgnored(service types.ServiceConfig) bool {
 	}
 	return false
 }
+
+// UnWrapTPL removes the line wrapping from a template.
+func UnWrapTPL(in []byte) []byte {
+	return regexpLineWrap.ReplaceAll(in, []byte(" }}"))
+}

generator/values.go

@@ -92,6 +92,7 @@ func (v *Value) AddIngress(host, path string) {
 
 // AddPersistence adds persistence configuration to the Value.
 func (v *Value) AddPersistence(volumeName string) {
+	volumeName = strings.ReplaceAll(volumeName, "-", "_")
 	if v.Persistence == nil {
 		v.Persistence = make(map[string]*PersistenceValue, 0)
 	}

generator/volume.go

@@ -76,6 +76,8 @@ func (v *VolumeClaim) Yaml() ([]byte, error) {
 		return nil, err
 	}
 
+	out = UnWrapTPL(out)
+
 	// replace 1Gi to {{ .Values.serviceName.volume.size }}
 	out = []byte(
 		strings.Replace(