New config.MetaData struct and NewMetaData()

internal/config/config.go

@@ -6,6 +6,7 @@ import (
 	"os"
 	"path"
 	"path/filepath"
+	"strings"
 	"sync"
 	"time"
 
@@ -82,6 +83,12 @@ type Config struct {
 	GitalyClient gitaly.Client
 }
 
+type MetaData struct {
+	Username      string `json:"username"`
+	Project       string `json:"project,omitempty"`
+	RootNamespace string `json:"root_namespace,omitempty"`
+}
+
 // The defaults to apply before parsing the config file(s).
 var (
 	DefaultConfig = Config{
@@ -110,6 +117,26 @@ var (
 	}
 )
 
+func NewMetaData(project, username string) MetaData {
+	rootNameSpace := ""
+
+	if len(project) > 0 {
+		splitFn := func(c rune) bool {
+			return c == '/'
+		}
+		m := strings.FieldsFunc(project, splitFn)
+		if len(m) > 0 {
+			rootNameSpace = m[0]
+		}
+	}
+
+	return MetaData{
+		Username:      username,
+		Project:       project,
+		RootNamespace: rootNameSpace,
+	}
+}
+
 func (d *YamlDuration) UnmarshalYAML(unmarshal func(interface{}) error) error {
 	var intDuration int
 	if err := unmarshal(&intDuration); err != nil {

internal/config/config_test.go

@@ -98,3 +98,40 @@ func TestYAMLDuration(t *testing.T) {
 		})
 	}
 }
+
+func TestNewMetaData(t *testing.T) {
+	testCases := []struct {
+		desc                  string
+		project               string
+		username              string
+		expectedRootNamespace string
+	}{
+		{
+			desc:                  "Project under single namespace",
+			project:               "flightjs/Flight",
+			username:              "@alex-doe",
+			expectedRootNamespace: "flightjs",
+		},
+		{
+			desc:                  "Project under single odd namespace",
+			project:               "flightjs///Flight",
+			username:              "@alex-doe",
+			expectedRootNamespace: "flightjs",
+		},
+		{
+			desc:                  "Project under deeper namespace",
+			project:               "flightjs/one/Flight",
+			username:              "@alex-doe",
+			expectedRootNamespace: "flightjs",
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.desc, func(t *testing.T) {
+			metaData := NewMetaData(tc.project, tc.username)
+			require.Equal(t, tc.project, metaData.Project)
+			require.Equal(t, tc.username, metaData.Username)
+			require.Equal(t, tc.expectedRootNamespace, metaData.RootNamespace)
+		})
+	}
+}