Specify custom desktop file fields in FyneApp.toml

cmd/fyne/internal/commands/package-unix.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"os"
 	"path/filepath"
+	"strings"
 
 	"fyne.io/fyne/v2/cmd/fyne/internal/templates"
 
@@ -14,6 +15,10 @@ import (
 type unixData struct {
 	Name, Exec, Icon string
 	Local            string
+	GenericName      string
+	Categories       string
+	Comment          string
+	Keywords         string
 }
 
 func (p *Packager) packageUNIX() error {
@@ -52,7 +57,16 @@ func (p *Packager) packageUNIX() error {
 	desktop := filepath.Join(appsDir, p.Name+".desktop")
 	deskFile, _ := os.Create(desktop)
 
-	tplData := unixData{Name: p.Name, Exec: filepath.Base(p.exe), Icon: p.Name + filepath.Ext(p.icon), Local: local}
+	tplData := unixData{
+		Name:        p.Name,
+		Exec:        filepath.Base(p.exe),
+		Icon:        p.Name + filepath.Ext(p.icon),
+		Local:       local,
+		GenericName: p.linuxAndBSDMetadata.GenericName,
+		Keywords:    formatDesktopFileList(p.linuxAndBSDMetadata.Keywords),
+		Comment:     p.linuxAndBSDMetadata.Comment,
+		Categories:  formatDesktopFileList(p.linuxAndBSDMetadata.Categories),
+	}
 	err = templates.DesktopFileUNIX.Execute(deskFile, tplData)
 	if err != nil {
 		return fmt.Errorf("failed to write desktop entry string: %w", err)
@@ -77,3 +91,11 @@ func (p *Packager) packageUNIX() error {
 
 	return nil
 }
+
+func formatDesktopFileList(items []string) string {
+	if len(items) == 0 {
+		return ""
+	}
+
+	return strings.Join(items, ";") + ";"
+}

cmd/fyne/internal/commands/package-unix_test.go

@@ -0,0 +1,13 @@
+package commands
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestFormatDesktopFileList(t *testing.T) {
+	assert.Equal(t, "", formatDesktopFileList([]string{}))
+	assert.Equal(t, "One;", formatDesktopFileList([]string{"One"}))
+	assert.Equal(t, "One;Two;", formatDesktopFileList([]string{"One", "Two"}))
+}

cmd/fyne/internal/commands/package.go

@@ -135,7 +135,8 @@ type Packager struct {
 	tags, category                 string
 	tempDir                        string
 
-	customMetadata keyValueFlag
+	customMetadata      keyValueFlag
+	linuxAndBSDMetadata metadata.LinuxAndBSD
 }
 
 // AddFlags adds the flags for interacting with the package command.
@@ -378,6 +379,7 @@ func (p *Packager) validate() (err error) {
 
 		p.appData.Release = p.release
 		p.appData.mergeMetadata(data)
+		p.linuxAndBSDMetadata = data.LinuxAndBSD
 	}
 
 	exeName := calculateExeName(p.srcDir, p.os)

cmd/fyne/internal/metadata/data.go

@@ -6,6 +6,7 @@ type FyneApp struct {
 	Details     AppDetails
 	Development map[string]string `toml:",omitempty"`
 	Release     map[string]string `toml:",omitempty"`
+	LinuxAndBSD LinuxAndBSD
 }
 
 // AppDetails describes the build information, this group may be OS or arch specific
@@ -15,3 +16,11 @@ type AppDetails struct {
 	Version  string `toml:",omitempty"`
 	Build    int    `toml:",omitempty"`
 }
+
+// LinuxAndBSD describes specific metadata for desktop files on Linux and BSD.
+type LinuxAndBSD struct {
+	GenericName string   `toml:",omitempty"`
+	Categories  []string `toml:",omitempty"`
+	Comment     string   `toml:",omitempty"`
+	Keywords    []string `toml:",omitempty"`
+}

cmd/fyne/internal/templates/data/app.desktop

@@ -1,5 +1,12 @@
 [Desktop Entry]
 Type=Application
 Name={{.Name}}
+{{- if ne .GenericName ""}}
+GenericName={{.GenericName}}{{end}}
 Exec={{.Exec}}
 Icon={{.Name}}
+{{- if ne .Comment ""}}
+Comment={{.Comment}}{{end}}
+{{- if ne .Categories ""}}
+Categories={{.Categories}}{{end}}
+{{if ne .Keywords ""}}Keywords={{.Keywords}}{{else}}Keywords=fyne;{{end}}

cmd/fyne_demo/FyneApp.toml

@@ -3,10 +3,16 @@
   Name = "Fyne Demo"
   ID = "io.fyne.demo"
   Version = "2.3.0"
-  Build = 10
+  Build = 11
 
 [Development]
-  HelperText = "This binary was built with debug symbol"
+  HelperText = "This binary was built with debug symbols"
 
 [Release]
-  HelperText = "This binary was built without debug symbol"
+  HelperText = "This binary was built without debug symbols"
+
+[LinuxAndBSD]
+  GenericName = "Toolkit Demo"
+  Categories = ["Development"]
+  Comment = "A demo of Fyne and its capabilities."
+  Keywords = ["demo", "fyne"]