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61 lines
911 B
Go
61 lines
911 B
Go
// Copyright 2018 Ryan Dahl <ry@tinyclouds.org>
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// All rights reserved. MIT License.
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package main
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import (
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"fmt"
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"net/url"
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"os"
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)
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func logDebug(format string, v ...interface{}) {
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// Unless the debug flag is specified, discard logs.
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if *flagDebug {
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fmt.Printf(format+"\n", v...)
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}
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}
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// exists returns whether the given file or directory exists or not
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func exists(path string) bool {
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_, err := os.Stat(path)
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if err == nil {
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return true
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}
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if os.IsNotExist(err) {
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return false
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}
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panic(err)
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}
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func assert(cond bool, msg string) {
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if !cond {
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panic(msg)
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}
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}
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func isRemote(filename string) bool {
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u, err := url.Parse(filename)
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check(err)
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return u.IsAbs()
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}
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func check(e error) {
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if e != nil {
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panic(e)
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}
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}
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func exitOnError(err error) {
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if err != nil {
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os.Stderr.WriteString(err.Error())
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os.Exit(1)
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}
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}
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func async(cb func()) {
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wg.Add(1)
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go func() {
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cb()
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wg.Done()
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}()
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}
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