codegen: return error

codegen.go

@@ -80,16 +80,16 @@ func (s codegenCmd) formatExecute() string {
 }
 `
 }
-func Codegen(cmd *cobra.Command) {
+func Codegen(cmd *cobra.Command) error {
 	dir, err := os.MkdirTemp(os.TempDir(), "carapace-codegen-")
 	if err != nil {
-		panic(err.Error())
+		return err
 	}
 
-	codegen(cmd, dir)
+	return codegen(cmd, dir)
 }
 
-func codegen(cmd *cobra.Command, tmpDir string) {
+func codegen(cmd *cobra.Command, tmpDir string) error {
 	out := &bytes.Buffer{}
 	fmt.Fprintln(out, codegenCmd{cmd}.formatHeader())
 	fmt.Fprintln(out, codegenCmd{cmd}.formatCommand())
@@ -163,16 +163,19 @@ func codegen(cmd *cobra.Command, tmpDir string) {
 			unformatted[line-1] = "\033[31m" + unformatted[line-1] + "\033[2;37m"
 		}
 		println("\033[2;37m" + strings.Join(unformatted, "\n") + "\033[0m")
-		panic(err.Error())
+		return err
 	}
 
 	os.WriteFile(filename, formatted, 0644)
 
 	for _, subcmd := range cmd.Commands() {
 		if subcmd.Deprecated == "" && subcmd.Name() != "_carapace" {
-			codegen(subcmd, tmpDir)
+			if err := codegen(subcmd, tmpDir); err != nil {
+				return err
+			}
 		}
 	}
+	return nil
 }
 
 func formatUsage(usage string) string {

command.go

@@ -69,12 +69,12 @@ func (c Command) ToCobraE() (*cobra.Command, error) {
 	return cmd, nil
 }
 
-func (c Command) Codegen() {
+func (c Command) Codegen() error {
 	cmd, err := c.ToCobraE()
-	// TODO handle error
-	if err == nil {
-		Codegen(cmd)
+	if err != nil {
+		return err
 	}
+	return Codegen(cmd)
 }
 
 func (c Command) addPersistentFlags(cmd *cobra.Command) error {

go.mod

@@ -4,7 +4,7 @@ go 1.18
 
 require (
 	github.com/invopop/jsonschema v0.12.0
-	github.com/rsteube/carapace v0.49.1
+	github.com/rsteube/carapace v0.49.2
 	github.com/spf13/cobra v1.8.0
 	github.com/spf13/pflag v1.0.5
 	gopkg.in/yaml.v3 v3.0.1

go.sum

@@ -12,8 +12,8 @@ github.com/josharian/intern v1.0.0/go.mod h1:5DoeVV0s6jJacbCEi61lwdGj/aVlrQvzHFF
 github.com/mailru/easyjson v0.7.7 h1:UGYAvKxe3sBsEDzO8ZeWOSlIQfWFlxbzLZe7hwFURr0=
 github.com/mailru/easyjson v0.7.7/go.mod h1:xzfreul335JAWq5oZzymOObrkdz5UnU4kGfJJLY9Nlc=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
-github.com/rsteube/carapace v0.49.1 h1:ljGQpEkSATpvAnP6eO7Bc1iLJljxgfpCJoCPA/EkQlU=
-github.com/rsteube/carapace v0.49.1/go.mod h1:syVOvI8e2rEEK/9aMZxfWuHvcnQK/EcnTV4roClEnLE=
+github.com/rsteube/carapace v0.49.2 h1:BMtZK/iGeGFF2cAIn+x0zM46ZbNt7OM+p18sHHXpXm4=
+github.com/rsteube/carapace v0.49.2/go.mod h1:syVOvI8e2rEEK/9aMZxfWuHvcnQK/EcnTV4roClEnLE=
 github.com/rsteube/carapace-shlex v0.1.2 h1:ZKjhIfXoCkEnzensMglTaLbkNOaLkmM8SCRshpJKx6s=
 github.com/rsteube/carapace-shlex v0.1.2/go.mod h1:zPw1dOFwvLPKStUy9g2BYKanI6bsQMATzDMYQQybo3o=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=