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37 lines
840 B
Go
37 lines
840 B
Go
package rconfig
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import (
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"fmt"
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"os"
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)
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func ExampleParse() {
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// We're building an example configuration with a sub-struct to be filled
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// by the Parse command.
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config := struct {
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Username string `default:"unknown" flag:"user,u" description:"Your name"`
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Details struct {
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Age int `default:"25" flag:"age" description:"Your age"`
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}
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}{}
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// To have more relieable results we're setting os.Args to a known value.
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// In real-life use cases you wouldn't do this but parse the original
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// commandline arguments.
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os.Args = []string{
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"example",
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"--user=Luzifer",
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}
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Parse(&config)
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fmt.Printf("Hello %s, happy birthday for your %dth birthday.",
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config.Username,
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config.Details.Age)
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// You can also show an usage message for your user
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Usage()
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// Output:
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// Hello Luzifer, happy birthday for your 25th birthday.
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}
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