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https://github.com/ansible-collections/community.docker.git
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35 lines
776 B
Go
35 lines
776 B
Go
/*
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Copyright (c) Ansible Project
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GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
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SPDX-License-Identifier: GPL-3.0-or-later
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*/
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package main
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import (
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"fmt"
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"os"
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"time"
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)
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func main() {
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var delay time.Duration
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if len(os.Args) > 2 {
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fmt.Fprintf(os.Stderr, "%s must have 0 or 1 argument, not %d arguments\n", os.Args[0], len(os.Args))
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os.Exit(1)
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} else if len(os.Args) == 2 {
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var err error
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delay, err = time.ParseDuration(os.Args[1])
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if err != nil {
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fmt.Fprintf(os.Stderr, "Cannot parse delay duration: %s\n", err)
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os.Exit(1)
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}
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if delay.Microseconds() < 0 {
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fmt.Fprintf(os.Stderr, "Delay must not be negative!\n")
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os.Exit(1)
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}
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}
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fmt.Println("Hello!")
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time.Sleep(delay)
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}
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