Allow hermetic Sprig funtions only (#20)

craftypath · May 22, 2020 · cd84a29 · cd84a29
1 parent f63f68d
commit cd84a29
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diff --git a/README.md b/README.md
@@ -155,7 +155,7 @@ backendConfigs:
 ### Templating
 
 Go templating can be used in the config file as follows.
-The [Sprig](https://masterminds.github.io/sprig/) function library is included.
+Hermetic, i.e. repeatable, functions from the [Sprig](https://masterminds.github.io/sprig/) function library are included.
 
 * In the first templating pass, `globalVarFiles`, `globalVars`, `moduleVarFiles`, `moduleVars`, and `envs` are processed.
   All parameters specified under `params` and using the `-p|--param` flag are available in the `.Params` object.

diff --git a/pkg/config/config.go b/pkg/config/config.go
@@ -186,7 +186,7 @@ func load(cfgData []byte) (*fileConfig, error) {
 
 func renderTemplate(data map[string]interface{}, tmpl string) (string, error) {
 	wr := strings.Builder{}
-	tpl := template.New("gotpl").Funcs(sprig.TxtFuncMap()).Option("missingkey=error")
+	tpl := template.New("gotpl").Funcs(sprig.HermeticTxtFuncMap()).Option("missingkey=error")
 	tpl, err := tpl.Parse(tmpl)
 	if err != nil {
 		return "", err