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Better error handling

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This commit is contained in:
Zack Scholl 2017-10-21 14:34:59 -06:00
parent 4aa255bf16
commit 0f5b52ff35
1 changed files with 5 additions and 3 deletions
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8
utils.go
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@ -7,23 +7,25 @@ import (
"math" "math"
"os" "os"
"strconv" "strconv"
"github.com/pkg/errors"
) )
func CatFiles(files []string, outfile string, remove ...bool) error { func CatFiles(files []string, outfile string, remove ...bool) error {
finished, err := os.Create(outfile) finished, err := os.Create(outfile)
defer finished.Close() defer finished.Close()
if err != nil { if err != nil {
return err return errors.Wrap(err, "CatFiles create: ")
} }
for i := range files { for i := range files {
fh, err := os.Open(files[i]) fh, err := os.Open(files[i])
if err != nil { if err != nil {
return err return errors.Wrap(err, "CatFiles open "+files[i]+": ")
} }
_, err = io.Copy(finished, fh) _, err = io.Copy(finished, fh)
if err != nil { if err != nil {
return err return errors.Wrap(err, "CatFiles copy: ")
} }
fh.Close() fh.Close()
if len(remove) > 0 && remove[0] { if len(remove) > 0 && remove[0] {