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31 lines
1.0 KiB
Go
31 lines
1.0 KiB
Go
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package piperutils
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import (
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"bytes"
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"fmt"
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"text/template"
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)
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// ExecuteTemplate parses the provided template, substitutes values and returns the output
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func ExecuteTemplate(txtTemplate string, context interface{}) (string, error) {
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return ExecuteTemplateFunctions(txtTemplate, nil, context)
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}
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// ExecuteTemplateFunctions parses the provided template, applies the transformation functions, substitutes values and returns the output
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func ExecuteTemplateFunctions(txtTemplate string, functionMap template.FuncMap, context interface{}) (string, error) {
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template := template.New("tmp")
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if functionMap != nil {
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template = template.Funcs(functionMap)
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}
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template, err := template.Parse(txtTemplate)
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if err != nil {
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return "<nil>", fmt.Errorf("Failed to parse template defintion %v: %w", txtTemplate, err)
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}
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var output bytes.Buffer
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err = template.Execute(&output, context)
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if err != nil {
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return "<nil>", fmt.Errorf("Failed to transform template defintion %v: %w", txtTemplate, err)
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}
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return output.String(), nil
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}
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