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package run
import (
"archive/zip"
"io"
"net/http"
"os"
"strings"
beeLogger "github.com/beego/bee/logger"
)
var (
swaggerVersion = "3"
swaggerlink = "https://github.com/beego/swagger/archive/v" + swaggerVersion + ".zip"
)
func downloadFromURL(url, fileName string) {
var down bool
if fd, err := os.Stat(fileName); err != nil && os.IsNotExist(err) {
down = true
} else if fd.Size() == int64(0) {
down = true
} else {
beeLogger.Log.Infof("'%s' already exists", fileName)
return
}
if down {
beeLogger.Log.Infof("Downloading '%s' to '%s'...", url, fileName)
output, err := os.Create(fileName)
if err != nil {
beeLogger.Log.Errorf("Error while creating '%s': %s", fileName, err)
return
}
defer output.Close()
response, err := http.Get(url)
if err != nil {
beeLogger.Log.Errorf("Error while downloading '%s': %s", url, err)
return
}
defer response.Body.Close()
n, err := io.Copy(output, response.Body)
if err != nil {
beeLogger.Log.Errorf("Error while downloading '%s': %s", url, err)
return
}
beeLogger.Log.Successf("%d bytes downloaded!", n)
}
}
func unzipAndDelete(src string) error {
beeLogger.Log.Infof("Unzipping '%s'...", src)
r, err := zip.OpenReader(src)
if err != nil {
return err
}
defer r.Close()
rp := strings.NewReplacer("swagger-"+swaggerVersion, "swagger")
for _, f := range r.File {
rc, err := f.Open()
if err != nil {
return err
}
defer rc.Close()
fname := rp.Replace(f.Name)
if f.FileInfo().IsDir() {
os.MkdirAll(fname, f.Mode())
} else {
f, err := os.OpenFile(
fname, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, f.Mode())
if err != nil {
return err
}
defer f.Close()
_, err = io.Copy(f, rc)
if err != nil {
return err
}
}
}
beeLogger.Log.Successf("Done! Deleting '%s'...", src)
return os.RemoveAll(src)
}
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