helmfile/tmpl/context_tmpl.go

42 lines
803 B
Go

package tmpl
import (
"bytes"
"github.com/Masterminds/sprig"
"text/template"
)
func (c *Context) stringTemplate() *template.Template {
funcMap := sprig.TxtFuncMap()
for name, f := range c.createFuncMap() {
funcMap[name] = f
}
tmpl := template.New("stringTemplate").Funcs(funcMap)
if c.preRender {
tmpl.Option("missingkey=zero")
} else {
tmpl.Option("missingkey=error")
}
return tmpl
}
func (c *Context) RenderTemplateToBuffer(s string, data ...interface{}) (*bytes.Buffer, error) {
var t, parseErr = c.stringTemplate().Parse(s)
if parseErr != nil {
return nil, parseErr
}
var tplString bytes.Buffer
var d interface{}
if len(data) > 0 {
d = data[0]
}
var execErr = t.Execute(&tplString, d)
if execErr != nil {
return &tplString, execErr
}
return &tplString, nil
}