forked from bndr/gojenkins
/
artifact.go
105 lines (92 loc) · 2.64 KB
/
artifact.go
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// Copyright 2014 Vadim Kravcenko
//
// 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, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.
package gojenkins
import (
"crypto/md5"
"errors"
"fmt"
"io"
"io/ioutil"
"os"
"path"
)
// Represents an Artifact
type Artifact struct {
Jenkins *Jenkins
Build *Build
FileName string
Path string
}
// Get raw byte data of Artifact
func (a Artifact) GetData() ([]byte, error) {
var data string
a.Jenkins.Requester.Get(a.Path, &data, nil)
code := a.Jenkins.Requester.LastResponse.StatusCode
if code != 200 {
Error.Printf("Jenkins responded with StatusCode: %d", code)
return nil, errors.New("Could not get File Contents")
}
return []byte(data), nil
}
// Save artifact to a specific path, using your own filename.
func (a Artifact) Save(path string) {
Info.Printf("Saving artifact @ %s to %s", a.Path, path)
data, err := a.GetData()
if err != nil {
Error.Println("No Data received, not saving file.")
return
}
if _, err = os.Stat(path); err == nil {
Warning.Println("Local Copy already exists, Overwriting...")
}
err = ioutil.WriteFile(path, data, 0644)
a.validateDownload(path)
if err != nil {
Error.Println(err.Error())
}
}
// Save Artifact to directory using Artifact filename.
func (a Artifact) SaveToDir(dir string) {
if _, err := os.Stat(dir); err != nil {
Error.Printf("Can't Save Artifact. Directory %s does not exist...", dir)
return
}
a.Save(path.Join(dir, a.FileName))
}
// Compare Remote and local MD5
func (a Artifact) validateDownload(path string) bool {
localHash := a.getMD5local(path)
fp := Fingerprint{Jenkins: a.Jenkins, Base: "/fingerprint/", Id: localHash, Raw: new(fingerPrintResponse)}
if !fp.ValidateForBuild(a.FileName, a.Build) {
Error.Println("Fingerprint of the downloaded artifact could not be verified")
return false
}
return true
}
// Get Local MD5
func (a Artifact) getMD5local(path string) string {
h := md5.New()
localFile, err := os.Open(path)
if err != nil {
return ""
}
buffer := make([]byte, 2^20)
n, err := localFile.Read(buffer)
defer localFile.Close()
for err == nil {
io.WriteString(h, string(buffer[0:n]))
n, err = localFile.Read(buffer)
}
return fmt.Sprintf("%x", h.Sum(nil))
}