Fix Asciidoctor args

* Fix Asciidoctor args

* Fix Asciidoctor args documentation

* Update AsciiDoc documentation

Co-authored-by: Derk Muenchhausen <derk@muenchhausen.de>

Fixes #7493

3 files changed, 97 insertions, 27 deletions

diff --git a/markup/asciidocext/asciidocext_config/config.go b/markup/asciidocext/asciidocext_config/config.go
index aef998b51..79d103dc7 100644
--- a/markup/asciidocext/asciidocext_config/config.go
+++ b/markup/asciidocext/asciidocext_config/config.go
@@ -14,23 +14,28 @@
 // Package asciidoc_config holds asciidoc related configuration.
 package asciidocext_config
 
-// DefaultConfig holds the default asciidoc configuration.
-// These values are asciidoctor cli defaults (see https://asciidoctor.org/docs/user-manual/)
 var (
+	// Default holds Hugo's default asciidoc configuration.
 	Default = Config{
 		Backend:              "html5",
-		DocType:              "article",
 		Extensions:           []string{},
 		Attributes:           map[string]string{},
 		NoHeaderOrFooter:     true,
 		SafeMode:             "unsafe",
 		SectionNumbers:       false,
-		Verbose:              true,
-		Trace:                false,
+		Verbose:              false,
+		Trace:                true,
 		FailureLevel:         "fatal",
 		WorkingFolderCurrent: false,
 	}
 
+	// CliDefault holds Asciidoctor CLI defaults (see https://asciidoctor.org/docs/user-manual/)
+	CliDefault = Config{
+		Backend:      "html5",
+		SafeMode:     "unsafe",
+		FailureLevel: "fatal",
+	}
+
 	AllowedExtensions = map[string]bool{
 		"asciidoctor-html5s":           true,
 		"asciidoctor-bibtex":           true,
@@ -72,7 +77,6 @@ var (
 // Config configures asciidoc.
 type Config struct {
 	Backend              string
-	DocType              string
 	Extensions           []string
 	Attributes           map[string]string
 	NoHeaderOrFooter     bool
diff --git a/markup/asciidocext/convert.go b/markup/asciidocext/convert.go
index 5c794819b..7dd3e3533 100644
--- a/markup/asciidocext/convert.go
+++ b/markup/asciidocext/convert.go
@@ -69,7 +69,6 @@ func (a *asciidocConverter) getAsciidocContent(src []byte, ctx converter.Documen
 	}
 
 	args := a.parseArgs(ctx)
-	args = append(args, "--trace")
 	args = append(args, "-")
 
 	a.cfg.Logger.INFO.Println("Rendering", ctx.DocumentName, "with", path, "using asciidoctor args", args, "...")
@@ -81,9 +80,7 @@ func (a *asciidocConverter) parseArgs(ctx converter.DocumentContext) []string {
 	var cfg = a.cfg.MarkupConfig.AsciidocExt
 	args := []string{}
 
-	if asciidocext_config.AllowedBackend[cfg.Backend] && cfg.Backend != asciidocext_config.Default.Backend {
-		args = append(args, "-b", cfg.Backend)
-	}
+	args = a.appendArg(args, "-b", cfg.Backend, asciidocext_config.CliDefault.Backend, asciidocext_config.AllowedBackend)
 
 	for _, extension := range cfg.Extensions {
 		if !asciidocext_config.AllowedExtensions[extension] {
@@ -147,29 +144,36 @@ func (a *asciidocConverter) parseArgs(ctx converter.DocumentContext) []string {
 		a.cfg.Logger.WARN.Println("asciidoctor parameter NoHeaderOrFooter is expected for correct html rendering")
 	}
 
-	if cfg.SectionNumbers != asciidocext_config.Default.SectionNumbers {
+	if cfg.SectionNumbers {
 		args = append(args, "--section-numbers")
 	}
 
-	if cfg.Verbose != asciidocext_config.Default.Verbose {
-		args = append(args, "-v")
+	if cfg.Verbose {
+		args = append(args, "--verbose")
 	}
 
-	if cfg.Trace != asciidocext_config.Default.Trace {
+	if cfg.Trace {
 		args = append(args, "--trace")
 	}
 
-	if asciidocext_config.AllowedFailureLevel[cfg.FailureLevel] && cfg.FailureLevel != asciidocext_config.Default.FailureLevel {
-		args = append(args, "--failure-level", cfg.FailureLevel)
-	}
+	args = a.appendArg(args, "--failure-level", cfg.FailureLevel, asciidocext_config.CliDefault.FailureLevel, asciidocext_config.AllowedFailureLevel)
 
-	if asciidocext_config.AllowedSafeMode[cfg.SafeMode] && cfg.SafeMode != asciidocext_config.Default.SafeMode {
-		args = append(args, "--safe-mode", cfg.SafeMode)
-	}
+	args = a.appendArg(args, "--safe-mode", cfg.SafeMode, asciidocext_config.CliDefault.SafeMode, asciidocext_config.AllowedSafeMode)
 
 	return args
 }
 
+func (a *asciidocConverter) appendArg(args []string, option, value, defaultValue string, allowedValues map[string]bool) []string {
+	if value != defaultValue {
+		if allowedValues[value] {
+			args = append(args, option, value)
+		} else {
+			a.cfg.Logger.ERROR.Println("Unsupported asciidoctor value `" + value + "` for option " + option + " was passed in and will be ignored.")
+		}
+	}
+	return args
+}
+
 func getAsciidoctorExecPath() string {
 	path, err := exec.LookPath("asciidoctor")
 	if err != nil {
diff --git a/markup/asciidocext/convert_test.go b/markup/asciidocext/convert_test.go
index 7fa1035c3..dc9d76c07 100644
--- a/markup/asciidocext/convert_test.go
+++ b/markup/asciidocext/convert_test.go
@@ -18,13 +18,12 @@
 package asciidocext
 
 import (
-	"github.com/gohugoio/hugo/markup/markup_config"
 	"path/filepath"
-	"strings"
 	"testing"
 
 	"github.com/gohugoio/hugo/common/loggers"
 	"github.com/gohugoio/hugo/markup/converter"
+	"github.com/gohugoio/hugo/markup/markup_config"
 	"github.com/spf13/viper"
 
 	qt "github.com/frankban/quicktest"
@@ -51,8 +50,68 @@ func TestAsciidoctorDefaultArgs(t *testing.T) {
 	c.Assert(ac, qt.Not(qt.IsNil))
 
 	args := ac.parseArgs(converter.DocumentContext{})
-	c.Assert(args, qt.Not(qt.IsNil))
-	c.Assert(strings.Join(args, " "), qt.Equals, "--no-header-footer")
+	expected := []string{"--no-header-footer", "--trace"}
+	c.Assert(args, qt.DeepEquals, expected)
+}
+
+func TestAsciidoctorNonDefaultArgs(t *testing.T) {
+	c := qt.New(t)
+	cfg := viper.New()
+	mconf := markup_config.Default
+	mconf.AsciidocExt.Backend = "manpage"
+	mconf.AsciidocExt.NoHeaderOrFooter = false
+	mconf.AsciidocExt.SafeMode = "safe"
+	mconf.AsciidocExt.SectionNumbers = true
+	mconf.AsciidocExt.Verbose = true
+	mconf.AsciidocExt.Trace = false
+	mconf.AsciidocExt.FailureLevel = "warn"
+	p, err := Provider.New(
+		converter.ProviderConfig{
+			Cfg:          cfg,
+			MarkupConfig: mconf,
+			Logger:       loggers.NewErrorLogger(),
+		},
+	)
+	c.Assert(err, qt.IsNil)
+
+	conv, err := p.New(converter.DocumentContext{})
+	c.Assert(err, qt.IsNil)
+
+	ac := conv.(*asciidocConverter)
+	c.Assert(ac, qt.Not(qt.IsNil))
+
+	args := ac.parseArgs(converter.DocumentContext{})
+	expected := []string{"-b", "manpage", "--section-numbers", "--verbose", "--failure-level", "warn", "--safe-mode", "safe"}
+	c.Assert(args, qt.DeepEquals, expected)
+}
+
+func TestAsciidoctorDisallowedArgs(t *testing.T) {
+	c := qt.New(t)
+	cfg := viper.New()
+	mconf := markup_config.Default
+	mconf.AsciidocExt.Backend = "disallowed-backend"
+	mconf.AsciidocExt.Extensions = []string{"disallowed-extention"}
+	mconf.AsciidocExt.Attributes = map[string]string{"outdir": "disallowed-attribute"}
+	mconf.AsciidocExt.SafeMode = "disallowed-safemode"
+	mconf.AsciidocExt.FailureLevel = "disallowed-failurelevel"
+	p, err := Provider.New(
+		converter.ProviderConfig{
+			Cfg:          cfg,
+			MarkupConfig: mconf,
+			Logger:       loggers.NewErrorLogger(),
+		},
+	)
+	c.Assert(err, qt.IsNil)
+
+	conv, err := p.New(converter.DocumentContext{})
+	c.Assert(err, qt.IsNil)
+
+	ac := conv.(*asciidocConverter)
+	c.Assert(ac, qt.Not(qt.IsNil))
+
+	args := ac.parseArgs(converter.DocumentContext{})
+	expected := []string{"--no-header-footer", "--trace"}
+	c.Assert(args, qt.DeepEquals, expected)
 }
 
 func TestAsciidoctorDiagramArgs(t *testing.T) {
@@ -62,7 +121,7 @@ func TestAsciidoctorDiagramArgs(t *testing.T) {
 	mconf.AsciidocExt.NoHeaderOrFooter = true
 	mconf.AsciidocExt.Extensions = []string{"asciidoctor-html5s", "asciidoctor-diagram"}
 	mconf.AsciidocExt.Backend = "html5s"
-
+	mconf.AsciidocExt.Trace = false
 	p, err := Provider.New(
 		converter.ProviderConfig{
 			Cfg:          cfg,
@@ -79,8 +138,8 @@ func TestAsciidoctorDiagramArgs(t *testing.T) {
 	c.Assert(ac, qt.Not(qt.IsNil))
 
 	args := ac.parseArgs(converter.DocumentContext{})
-	c.Assert(len(args), qt.Equals, 7)
-	c.Assert(strings.Join(args, " "), qt.Equals, "-b html5s -r asciidoctor-html5s -r asciidoctor-diagram --no-header-footer")
+	expected := []string{"-b", "html5s", "-r", "asciidoctor-html5s", "-r", "asciidoctor-diagram", "--no-header-footer"}
+	c.Assert(args, qt.DeepEquals, expected)
 }
 
 func TestAsciidoctorWorkingFolderCurrent(t *testing.T) {
@@ -88,6 +147,7 @@ func TestAsciidoctorWorkingFolderCurrent(t *testing.T) {
 	cfg := viper.New()
 	mconf := markup_config.Default
 	mconf.AsciidocExt.WorkingFolderCurrent = true
+	mconf.AsciidocExt.Trace = false
 	p, err := Provider.New(
 		converter.ProviderConfig{
 			Cfg:          cfg,
@@ -121,6 +181,7 @@ func TestAsciidoctorWorkingFolderCurrentAndExtensions(t *testing.T) {
 	mconf.AsciidocExt.Extensions = []string{"asciidoctor-html5s", "asciidoctor-diagram"}
 	mconf.AsciidocExt.Backend = "html5s"
 	mconf.AsciidocExt.WorkingFolderCurrent = true
+	mconf.AsciidocExt.Trace = false
 	p, err := Provider.New(
 		converter.ProviderConfig{
 			Cfg:          cfg,
@@ -156,6 +217,7 @@ func TestAsciidoctorAttributes(t *testing.T) {
 	cfg := viper.New()
 	mconf := markup_config.Default
 	mconf.AsciidocExt.Attributes = map[string]string{"my-base-url": "https://gohugo.io/", "my-attribute-name": "my value"}
+	mconf.AsciidocExt.Trace = false
 	p, err := Provider.New(
 		converter.ProviderConfig{
 			Cfg:          cfg,