43 lines
952 B
Go
43 lines
952 B
Go
package framework
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import (
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"bufio"
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"bytes"
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"strings"
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"text/template"
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"github.com/hashicorp/errwrap"
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)
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func executeTemplate(tpl string, data interface{}) (string, error) {
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// Define the functions
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funcs := map[string]interface{}{
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"indent": funcIndent,
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}
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// Parse the help template
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t, err := template.New("root").Funcs(funcs).Parse(tpl)
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if err != nil {
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return "", errwrap.Wrapf("error parsing template: {{err}}", err)
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}
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// Execute the template and store the output
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var buf bytes.Buffer
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if err := t.Execute(&buf, data); err != nil {
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return "", errwrap.Wrapf("error executing template: {{err}}", err)
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}
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return strings.TrimSpace(buf.String()), nil
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}
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func funcIndent(count int, text string) string {
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var buf bytes.Buffer
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prefix := strings.Repeat(" ", count)
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scan := bufio.NewScanner(strings.NewReader(text))
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for scan.Scan() {
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buf.WriteString(prefix + scan.Text() + "\n")
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}
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return strings.TrimRight(buf.String(), "\n")
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}
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