forked from SoulAuctioneer/crp-cli
/
upgrade.go
84 lines (67 loc) · 1.53 KB
/
upgrade.go
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package main
import (
"io"
"io/ioutil"
"os"
"runtime"
"strings"
"bitbucket.org/kardianos/osext"
)
var LATEST_VERSION_ADDRESS = "https://github.com/CrowdProcess/crp-cli/releases/latest"
// Upgrade checks github's latest release and downloads/replaces the current binary.
// Returns true if the binary has been replaced, false otherwise.
func Upgrade() (bool, error) {
var err error
response, err := client.Get(LATEST_VERSION_ADDRESS)
if err != nil {
return false, err
}
url := response.Request.URL
paths := strings.Split(url.Path, "/")
latestVersion := paths[len(paths)-1]
if latestVersion == VERSION {
return false, nil
}
exe, err := osext.Executable()
if err != nil {
return false, err
}
path, err := osext.ExecutableFolder()
if err != nil {
return false, err
}
file, err := ioutil.TempFile(path, ".crp-")
if err != nil {
return false, err
}
defer file.Close()
defer os.Remove(file.Name())
goarch := runtime.GOARCH
goos := runtime.GOOS
if goos == "windows" {
goos = "win"
}
downloadUrl := strings.Replace(url.String(), "tag", "download", 1) + "/crowdprocess-" + goos + "-" + goarch
if goos == "win" {
downloadUrl += ".exe"
}
response, err = client.Get(downloadUrl)
if err != nil {
return false, err
}
defer response.Body.Close()
_, err = io.Copy(file, response.Body)
if err != nil {
return false, err
}
stat, err := os.Stat(exe)
if err != nil {
return false, err
}
file.Chmod(stat.Mode())
err = os.Rename(file.Name(), exe)
if err != nil {
return false, err
}
return true, nil
}