shithub: hugo

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tpl: Update getenv to accept interface{} params

Updates #2822

--- a/tpl/template_funcs.go

+++ b/tpl/template_funcs.go

@@ -2075,6 +2075,17 @@

 	return template.HTML(helpers.CurrentPathSpec().RelURL(s, false)), nil

 }

+// getenv retrieves the value of the environment variable named by the key.

+// It returns the value, which will be empty if the variable is not present.

+func getenv(key interface{}) (string, error) {

+	skey, err := cast.ToStringE(key)

+	if err != nil {

+		return "", nil

+	}

+

+	return os.Getenv(skey), nil

+}

+

 func initFuncMap() {

 	funcMap = template.FuncMap{

 		"absURL": absURL,

@@ -2106,7 +2117,7 @@

 		"ge":            ge,

 		"getCSV":        getCSV,

 		"getJSON":       getJSON,

-		"getenv":        func(varName string) string { return os.Getenv(varName) },

+		"getenv":        getenv,

 		"gt":            gt,

 		"hasPrefix":     hasPrefix,

 		"highlight":     highlight,

-- 

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