Add themesDir option to configuration

themesDir can be used to change the default
path of the themes folder.

Fixes 1556

commands/hugo.go

@@ -210,6 +210,7 @@ func LoadDefaultSettings() {
 	viper.SetDefault("ArchetypeDir", "archetypes")
 	viper.SetDefault("PublishDir", "public")
 	viper.SetDefault("DataDir", "data")
+	viper.SetDefault("ThemesDir", "themes")
 	viper.SetDefault("DefaultLayout", "post")
 	viper.SetDefault("BuildDrafts", false)
 	viper.SetDefault("BuildFuture", false)
@@ -514,7 +515,7 @@ func getDirList() []string {
 	filepath.Walk(helpers.AbsPathify(viper.GetString("LayoutDir")), walker)
 	filepath.Walk(helpers.AbsPathify(viper.GetString("StaticDir")), walker)
 	if helpers.ThemeSet() {
-		filepath.Walk(helpers.AbsPathify("themes/"+viper.GetString("theme")), walker)
+		filepath.Walk(helpers.AbsPathify(viper.GetString("themesDir")+"/"+viper.GetString("theme")), walker)
 	}
 
 	return a

commands/new.go

@@ -176,8 +176,8 @@ func NewTheme(cmd *cobra.Command, args []string) error {
 		return newUserError("theme name needs to be provided")
 	}
 
-	createpath := helpers.AbsPathify(filepath.Join("themes", args[0]))
-	jww.INFO.Println("Creating theme at", createpath)
+	createpath := helpers.AbsPathify(filepath.Join(viper.GetString("themesDir"), args[0]))
+	jww.INFO.Println("creating theme at", createpath)
 
 	if x, _ := helpers.Exists(createpath, hugofs.SourceFs); x {
 		return newUserError(createpath, "already exists")

create/content.go

@@ -132,7 +132,7 @@ func FindArchetype(kind string) (outpath string) {
 	search := []string{helpers.AbsPathify(viper.GetString("archetypeDir"))}
 
 	if viper.GetString("theme") != "" {
-		themeDir := filepath.Join(helpers.AbsPathify("themes/"+viper.GetString("theme")), "/archetypes/")
+		themeDir := filepath.Join(helpers.AbsPathify(viper.GetString("themesDir")+"/"+viper.GetString("theme")), "/archetypes/")
 		if _, err := os.Stat(themeDir); os.IsNotExist(err) {
 			jww.ERROR.Println("Unable to find archetypes directory for theme :", viper.GetString("theme"), "in", themeDir)
 		} else {

docs/content/overview/configuration.md

@@ -130,7 +130,8 @@ Following is a list of Hugo-defined variables that you can configure and their c
     staticdir:                  "static"
     # display memory and timing of different steps of the program
     stepAnalysis:               false
-    # theme to use (located in /themes/THEMENAME/)
+    # theme to use (located by default in /themes/THEMENAME/)
+    themesdir = "themes"
     theme:                      ""
     title:                      ""
     # if true, use /filename.html instead of /filename/

helpers/path.go

@@ -142,7 +142,7 @@ func GetStaticDirPath() string {
 // If there is no theme, returns the empty string.
 func GetThemeDir() string {
 	if ThemeSet() {
-		return AbsPathify(filepath.Join("themes", viper.GetString("theme")))
+		return AbsPathify(filepath.Join(viper.GetString("themesDir"), viper.GetString("theme")))
 	}
 	return ""
 }

hugolib/site.go

@@ -495,7 +495,7 @@ func (s *Site) absDataDir() string {
 }
 
 func (s *Site) absThemeDir() string {
-	return helpers.AbsPathify("themes/" + viper.GetString("theme"))
+	return helpers.AbsPathify(viper.GetString("themesDir") + "/" + viper.GetString("theme"))
 }
 
 func (s *Site) absLayoutDir() string {