commands: Correctly handle destination and i18n-warnings

And add some more CLI tests.

See #4607

commands/commands_test.go

@@ -21,6 +21,7 @@ import (
 	"testing"
 
 	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
 
 	"github.com/stretchr/testify/require"
 )
@@ -53,7 +54,24 @@ func TestCommandsPersistentFlags(t *testing.T) {
 	tests := []struct {
 		args  []string
 		check func(command []cmder)
-	}{{[]string{"server", "--config=myconfig.toml", "-b=https://example.com/b/", "--source=mysource"}, func(commands []cmder) {
+	}{{[]string{"server",
+		"--config=myconfig.toml",
+		"--contentDir=mycontent",
+		"--layoutDir=mylayouts",
+		"--theme=mytheme",
+		"--themesDir=mythemes",
+		"--cleanDestinationDir",
+		"--navigateToChanged",
+		"--disableLiveReload",
+		"--noHTTPCache",
+		"--i18n-warnings",
+		"--destination=/tmp/mydestination",
+		"-b=https://example.com/b/",
+		"--port=1366",
+		"--renderToDisk",
+		"--source=mysource",
+		"--uglyURLs"}, func(commands []cmder) {
+		var sc *serverCmd
 		for _, command := range commands {
 			if b, ok := command.(commandsBuilderGetter); ok {
 				v := b.getCmmandsBuilder().hugoBuilderCommon
@@ -61,7 +79,32 @@ func TestCommandsPersistentFlags(t *testing.T) {
 				assert.Equal("mysource", v.source)
 				assert.Equal("https://example.com/b/", v.baseURL)
 			}
+
+			if srvCmd, ok := command.(*serverCmd); ok {
+				sc = srvCmd
 			}
+		}
+
+		assert.NotNil(sc)
+		assert.True(sc.navigateToChanged)
+		assert.True(sc.disableLiveReload)
+		assert.True(sc.noHTTPCache)
+		assert.True(sc.renderToDisk)
+		assert.Equal(1366, sc.serverPort)
+
+		cfg := viper.New()
+		sc.flagsToConfig(cfg)
+		assert.Equal("/tmp/mydestination", cfg.GetString("publishDir"))
+		assert.Equal("mycontent", cfg.GetString("contentDir"))
+		assert.Equal("mylayouts", cfg.GetString("layoutDir"))
+		assert.Equal("mytheme", cfg.GetString("theme"))
+		assert.Equal("mythemes", cfg.GetString("themesDir"))
+
+		assert.True(cfg.GetBool("uglyURLs"))
+
+		// The flag is named i18n-warnings
+		assert.True(cfg.GetBool("logI18nWarnings"))
+
 	}}}
 
 	for _, test := range tests {

commands/hugo.go

@@ -200,7 +200,7 @@ func initializeFlags(cmd *cobra.Command, cfg config.Provider) {
 		"gc",
 		"layoutDir",
 		"logFile",
-		"logI18nWarnings",
+		"i18n-warnings",
 		"quiet",
 		"renderToMemory",
 		"source",
@@ -211,12 +211,16 @@ func initializeFlags(cmd *cobra.Command, cfg config.Provider) {
 	}
 
 	for _, key := range persFlagKeys {
-		setValueFromFlag(cmd.PersistentFlags(), key, cfg)
+		setValueFromFlag(cmd.PersistentFlags(), key, cfg, "")
 	}
 	for _, key := range flagKeys {
-		setValueFromFlag(cmd.Flags(), key, cfg)
+		setValueFromFlag(cmd.Flags(), key, cfg, "")
 	}
 
+	// Set some "config aliases"
+	setValueFromFlag(cmd.Flags(), "destination", cfg, "publishDir")
+	setValueFromFlag(cmd.Flags(), "i18n-warnings", cfg, "logI18nWarnings")
+
 }
 
 var deprecatedFlags = map[string]bool{
@@ -226,7 +230,7 @@ var deprecatedFlags = map[string]bool{
 	strings.ToLower("canonifyURLs"):          true,
 }
 
-func setValueFromFlag(flags *flag.FlagSet, key string, cfg config.Provider) {
+func setValueFromFlag(flags *flag.FlagSet, key string, cfg config.Provider, targetKey string) {
 	if flags.Changed(key) {
 		if _, deprecated := deprecatedFlags[strings.ToLower(key)]; deprecated {
 			msg := fmt.Sprintf(`Set "%s = true" in your config.toml.
@@ -235,7 +239,11 @@ If you need to set this configuration value from the command line, set it via an
 			helpers.Deprecated("hugo", "--"+key+" flag", msg, true)
 		}
 		f := flags.Lookup(key)
-		cfg.Set(key, f.Value.String())
+		configKey := key
+		if targetKey != "" {
+			configKey = targetKey
+		}
+		cfg.Set(configKey, f.Value.String())
 	}
 }