41 lines
740 B
Go
41 lines
740 B
Go
// SPDX-FileCopyrightText: 2024 Dan Anglin <d.n.i.anglin@gmail.com>
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//
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// SPDX-License-Identifier: GPL-3.0-or-later
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package executor
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import (
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"flag"
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"fmt"
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"strings"
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)
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// commandUsageFunc returns the function used to print a command's help page.
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func commandUsageFunc(name, summary string, flagset *flag.FlagSet) func() {
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return func() {
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var builder strings.Builder
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fmt.Fprintf(
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&builder,
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"SUMMARY:\n %s - %s\n\nUSAGE:\n enbas %s [flags]\n\nFLAGS:",
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name,
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summary,
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name,
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)
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flagset.VisitAll(func(f *flag.Flag) {
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fmt.Fprintf(
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&builder,
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"\n --%s\n %s",
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f.Name,
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f.Usage,
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)
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})
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builder.WriteString("\n")
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w := flag.CommandLine.Output()
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fmt.Fprint(w, builder.String())
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}
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}
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