Remove juju/errors

utils/init_tcp.go

@@ -1,10 +1,9 @@
 package utils
 
 import (
+	"fmt"
 	"net"
 
-	"github.com/juju/errors"
-
 	"github.com/9seconds/mtg/config"
 )
 
@@ -12,13 +11,13 @@ func InitTCP(conn net.Conn) error {
 	tcpConn := conn.(*net.TCPConn)
 
 	if err := tcpConn.SetNoDelay(true); err != nil {
-		return errors.Annotate(err, "Cannot set NO_DELAY")
+		return fmt.Errorf("cannot set TCP_NO_DELAY: %w", err)
 	}
 	if err := tcpConn.SetReadBuffer(config.C.BufferSize.Read); err != nil {
-		return errors.Annotate(err, "Cannot set read buffer size")
+		return fmt.Errorf("cannot set read buffer size: %w", err)
 	}
 	if err := tcpConn.SetWriteBuffer(config.C.BufferSize.Write); err != nil {
-		return errors.Annotate(err, "Cannot set write buffer size")
+		return fmt.Errorf("cannot set write buffer size: %w", err)
 	}
 
 	return nil

utils/rlimit.go

@@ -3,24 +3,21 @@
 package utils
 
 import (
-	"golang.org/x/sys/unix"
+	"fmt"
 
-	"github.com/juju/errors"
+	"golang.org/x/sys/unix"
 )
 
-func SetLimits() (err error) {
+func SetLimits() error {
 	rLimit := unix.Rlimit{}
-	err = unix.Getrlimit(unix.RLIMIT_NOFILE, &rLimit)
-	if err != nil {
-		err = errors.Annotate(err, "Cannot get rlimit")
-		return
+	if err := unix.Getrlimit(unix.RLIMIT_NOFILE, &rLimit); err != nil {
+		return fmt.Errorf("cannot get rlimit: %w", err)
 	}
 	rLimit.Cur = rLimit.Max
 
-	err = unix.Setrlimit(unix.RLIMIT_NOFILE, &rLimit)
-	if err != nil {
-		err = errors.Annotate(err, "Cannot set rlimit")
+	if err := unix.Setrlimit(unix.RLIMIT_NOFILE, &rLimit); err != nil {
+		return fmt.Errorf("cannot set rlimit: %w", err)
 	}
 
-	return
+	return nil
 }