Error Wrapper
Error Wrapper creates an wrapper for the error type in Go which captures the File, Line and Stack of where it was called.
Installation
go get -u github.com/txgruppi/werr
Why?
I don't like to use panic.
I want my apps to run forever and just output errors to a log.
Usually I write my logs using logger.Printf("%#v", err) but I needed more info related to the error, so I created this package.
Example
package main
import (
"fmt"
"os"
"github.com/txgruppi/werr"
)
func main() {
file, err := os.Open("/tmp/my-missing-file")
if err != nil {
err = werr.Wrap(err) // Wrap it
fmt.Println(err.Error()) // Return the original error message
if wrapped, ok := err.(*werr.Wrapper); ok { // Try to convert to `*werr.Wrapper`
lg, _ := wrapped.Log() // Generate the log message
fmt.Println(lg) // Print the log message
}
}
defer file.Close()
}
This code will output something line this:
open /tmp/my-missing-file: no such file or directory
/Users/txgruppi/code/temp/test.go:13 open /tmp/my-missing-file: no such file or directory
goroutine 1 [running]:
github.com/txgruppi/werr.Wrap(0x2208246900, 0x208270300, 0x0, 0x0)
/Users/txgruppi/code/go/src/github.com/txgruppi/werr/funcs.go:24 +0x153
main.main()
/Users/txgruppi/code/temp/test.go:13 +0x72
Tests
go get -u -t github.com/txgruppi/werr
cd $GOPATH/src/github.com/txgruppi/werr
go test ./...
License
MIT
