WaitGroup to ErrGroup

go.mod

@@ -6,6 +6,7 @@ require (
 	github.com/dustin/go-humanize v1.0.1
 	github.com/go-chi/chi/v5 v5.1.0
 	github.com/rs/zerolog v1.33.0
+	golang.org/x/sync v0.9.0
 )
 
 require (

go.sum

@@ -14,6 +14,8 @@ github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINE
 github.com/rs/xid v1.5.0/go.mod h1:trrq9SKmegXys3aeAKXMUTdJsYXVwGY3RLcfgqegfbg=
 github.com/rs/zerolog v1.33.0 h1:1cU2KZkvPxNyfgEmhHAz/1A9Bz+llsdYzklWFzgp0r8=
 github.com/rs/zerolog v1.33.0/go.mod h1:/7mN4D5sKwJLZQ2b/znpjC3/GQWY/xaDXUM0kKWRHss=
+golang.org/x/sync v0.9.0 h1:fEo0HyrW1GIgZdpbhCRO0PkJajUS5H9IFUztCgEo2jQ=
+golang.org/x/sync v0.9.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
 golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=

src/media/fetch.go

@@ -5,6 +5,7 @@ import (
 	"errors"
 	"fmt"
 	"github.com/dustin/go-humanize"
+	"golang.org/x/sync/errgroup"
 	"html/template"
 	"media-roller/src/utils"
 	"net/http"
@@ -23,7 +24,6 @@ import (
 	"io"
 	"os"
 	"os/exec"
-	"sync"
 )
 
 type Media struct {
@@ -156,16 +156,15 @@ func downloadMedia(url string) (string, string, error) {
 		return "", err.Error(), err
 	}
 
-	var wg sync.WaitGroup
-	wg.Add(1)
+	eg := errgroup.Group{}
 
-	go func() {
+	eg.Go(func() error {
 		_, errStdout = io.Copy(stdout, stdoutIn)
-		wg.Done()
-	}()
+		return nil
+	})
 
 	_, errStderr = io.Copy(stderr, stderrIn)
-	wg.Wait()
+	_ = eg.Wait()
 	log.Info().Msgf("Done with %s", id)
 
 	err = cmd.Wait()