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getter.go
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/
getter.go
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/*
*
* // Copyright 2019 , Beijing Mobike Technology Co., Ltd.
* //
* // Licensed under the Apache License, Version 2.0 (the "License");
* // you may not use this file except in compliance with the License.
* // You may obtain a copy of the License at
* //
* // http://www.apache.org/licenses/LICENSE-2.0
* //
* // Unless required by applicable law or agreed to in writing, software
* // distributed under the License is distributed on an "AS IS" BASIS,
* // See the License for the specific language governing permissions and
* // limitations under the License.
*/
package utils
import (
"fmt"
"os"
"github.com/hashicorp/go-getter"
"github.com/juju/errors"
log "github.com/sirupsen/logrus"
)
func GetExecutable(url string, dir string, name string) (string, error) {
if _, err := os.Stat(dir); os.IsNotExist(err) {
if err := os.Mkdir(dir, 0700); err != nil {
return "", errors.Trace(err)
}
}
dstFileName := fmt.Sprintf("%s/%s", dir, name)
pwd, err := os.Getwd()
if err != nil {
return "", errors.Trace(err)
}
log.Infof("[registry] downloading plugin pwd %s, dstFileName: %s from %s", pwd, dstFileName, url)
client := getter.Client{
Src: url,
Dst: dstFileName,
Dir: false,
Mode: getter.ClientModeFile,
Getters: getter.Getters,
Pwd: pwd,
}
if err := client.Get(); err != nil {
return "", errors.Trace(err)
}
if err := os.Chmod(dstFileName, 0700); err != nil {
return "", errors.Trace(err)
}
return dstFileName, nil
}