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web.download: return false ASAP if meet the error

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This commit is contained in:
detailyang
2019-01-15 15:12:03 +08:00
committed by GitHub
parent 21f36f218a
commit 96b3f8cc6c
1 changed files with 4 additions and 0 deletions
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4
src/nvm/web/web.go
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@@ -58,12 +58,14 @@ func Download(url string, target string, version string) bool {
output, err := os.Create(target)
if err != nil {
fmt.Println("Error while creating", target, "-", err)
return false
}
defer output.Close()
response, err := client.Get(url)
if err != nil {
fmt.Println("Error while downloading", url, "-", err)
return false
}
defer response.Body.Close()
c := make(chan os.Signal, 2)
@@ -87,12 +89,14 @@ func Download(url string, target string, version string) bool {
_, err = io.Copy(output, response.Body)
if err != nil {
fmt.Println("Error while downloading", url, "-", err)
return false
}
if response.Status[0:3] != "200" {
fmt.Println("Download failed. Rolling Back.")
err := os.Remove(target)
if err != nil {
fmt.Println("Rollback failed.",err)
return false
}
return false
}