lab/go-templates/main.go

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package main
import (
"log"
"os"
"text/template"
"gopkg.in/yaml.v3"
)
func check(err error) {
if err != nil {
log.Fatalf("error: %v", err)
}
}
func main() {
out, err := os.Create("index.html")
check(err)
defer out.Close()
data := map[string]any{}
buf, err := os.ReadFile("data.yaml")
check(err)
err = yaml.Unmarshal(buf, &data)
check(err)
t, err := template.ParseGlob("tmpl/*")
check(err)
err = t.Execute(out, data)
check(err)
}