https://github.com/lesiw/defers

Global defers for Go.
https://github.com/lesiw/defers

go go-package golang

Last synced: 10 months ago
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Global defers for Go.

• Host: GitHub
• URL: https://github.com/lesiw/defers
• Owner: lesiw
• License: mit
• Created: 2024-06-16T19:41:22.000Z (about 2 years ago)
• Default Branch: main
• Last Pushed: 2024-12-23T23:15:42.000Z (over 1 year ago)
• Last Synced: 2024-12-23T23:27:41.968Z (over 1 year ago)
• Topics: go, go-package, golang
• Language: Go
• Homepage: https://lesiw.io/defers
• Size: 26.4 KB
• Stars: 17
• Watchers: 1
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# lesiw.io/defers

[![Go Reference](https://pkg.go.dev/badge/lesiw.io/defers.svg)](https://pkg.go.dev/lesiw.io/defers)

Package defers handles program-wide defers.

Defers are executed when defers.Exit() is called or when an interrupt signal is

caught, whichever happens first.

If an interrupt signal is caught, the program will exit with a status of 128

plus the signal number. In the event the signal number cannot be determined, the

program will exit with exit status 1.

## Example

```go

package main

import (

    "fmt"

    "os"

    "lesiw.io/defers"

)

// Set stop to true to halt the program.

// This forces the Go Playground to send an os.Interrupt.

// Global defers will still run before the program ends.

var stop = false

var success bool

func main() {

    defer defers.Run()

    defers.Add(func() {

        if success {

            fmt.Fprintln(os.Stderr, "The program executed successfully.")

        } else {

            fmt.Fprintln(os.Stderr, "The program was interrupted.")

        }

    })

    fmt.Println("Preparing to send a greeting...")

    if stop {

        select {}

    }

    fmt.Println("Hello world!")

    success = true

}

```

[▶️ Run this example on the Go Playground](https://go.dev/play/p/Ser5Yr68rko)