/
install.go
78 lines (68 loc) · 1.85 KB
/
install.go
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package main
import (
"fmt"
"github.com/reef-pi/reef-pi/controller/utils"
"io"
"log"
"net/http"
"os"
"path"
"path/filepath"
"strings"
"time"
)
const urlTemplate = "https://github.com/reef-pi/reef-pi/releases/download/%s/reef-pi-%s-pi%s.deb"
func downloadDeb(pi, version string) (string, error) {
url := fmt.Sprintf(urlTemplate, version, version, pi)
log.Println("Downloading reef-pi from:", url)
resp, err := http.Get(url)
if err != nil {
return "", err
}
file := path.Base(resp.Request.URL.Path)
file = filepath.Join(os.TempDir(), file)
out, err := os.Create(file)
if err != nil {
return "", err
}
// Write the body to file
if _, err = io.Copy(out, resp.Body); err != nil {
return "", err
}
out.Close()
resp.Body.Close()
log.Println("reef-pi debian package downloaded at:", file)
return file, nil
}
func install(version string) error { // version to upgrade to
log.Println("Executing reef-pi upgrade command")
time.Sleep(time.Second)
if _, err := utils.Command("/bin/systemctl", "stop", "reef-pi.service").CombinedOutput(); err != nil {
log.Println("Failed to stop reef-pi:", err)
}
time.Sleep(time.Second)
out, err := utils.Command("/bin/uname", "-m").CombinedOutput()
if err != nil {
log.Println("Failed to detect pi version:", err)
return err
}
pi := "3"
if strings.Contains(string(out), "armv6") {
pi = "0"
}
file, err := downloadDeb(pi, version)
if err != nil {
log.Println("Failed to download reef-pi")
return err
}
if out, err := utils.Command("/usr/bin/dpkg", "-i", file).CombinedOutput(); err != nil {
log.Println("Failed to install new reef-pi:", err, "\n", string(out))
return err
}
if _, err := utils.Command("/bin/systemctl", "start", "reef-pi.service").CombinedOutput(); err != nil {
log.Println("Failed to start reef-pi:", err)
return err
}
log.Println("reef-pi upgrade is done")
return nil
}