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137 lines
2.9 KiB
137 lines
2.9 KiB
package bins
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import (
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"compress/bzip2"
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"encoding/json"
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"errors"
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"fmt"
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"io"
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"io/ioutil"
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"net/http"
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"os"
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"path"
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"runtime"
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"strings"
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"github.com/blang/semver/v4"
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"github.com/cupcakearmy/autorestic/internal"
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"github.com/cupcakearmy/autorestic/internal/colors"
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)
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const INSTALL_PATH = "/usr/local/bin"
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type GithubReleaseAsset struct {
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Name string `json:"name"`
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Link string `json:"browser_download_url"`
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}
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type GithubRelease struct {
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Tag string `json:"tag_name"`
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Assets []GithubReleaseAsset `json:"assets"`
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}
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func dlJSON(url string) (GithubRelease, error) {
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var parsed GithubRelease
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resp, err := http.Get(url)
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if err != nil {
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return parsed, err
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}
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defer resp.Body.Close()
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body, err := ioutil.ReadAll(resp.Body)
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if err != nil {
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return parsed, err
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}
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json.Unmarshal(body, &parsed)
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return parsed, nil
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}
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func Uninstall(restic bool) error {
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if err := os.Remove(path.Join(INSTALL_PATH, "autorestic")); err != nil {
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colors.Error.Println(err)
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}
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if restic {
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if err := os.Remove(path.Join(INSTALL_PATH, "restic")); err != nil {
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colors.Error.Println(err)
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}
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}
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return nil
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}
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func InstallRestic() error {
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installed := internal.CheckIfCommandIsCallable("restic")
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if installed {
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colors.Body.Println("restic already installed")
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return nil
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} else {
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body, err := dlJSON("https://api.github.com/repos/restic/restic/releases/latest")
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if err != nil {
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return err
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}
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ending := fmt.Sprintf("_%s_%s.bz2", runtime.GOOS, runtime.GOARCH)
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for _, asset := range body.Assets {
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if strings.HasSuffix(asset.Name, ending) {
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// Download archive
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colors.Faint.Println("Downloading:", asset.Link)
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resp, err := http.Get(asset.Link)
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if err != nil {
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return err
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}
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defer resp.Body.Close()
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// Uncompress
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bz := bzip2.NewReader(resp.Body)
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// Save binary
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file, err := os.Create(path.Join(INSTALL_PATH, "restic"))
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if err != nil {
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return err
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}
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file.Chmod(0755)
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defer file.Close()
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io.Copy(file, bz)
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colors.Success.Printf("Successfully installed restic under %s\n", INSTALL_PATH)
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return nil
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}
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}
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return errors.New("could not find right binary for your system, please install restic manually. https://bit.ly/2Y1Rzai")
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}
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}
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func upgradeRestic() error {
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out, err := internal.ExecuteCommand(internal.ExecuteOptions{
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Command: "restic",
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}, "self-update")
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colors.Faint.Println(out)
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return err
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}
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func Upgrade(restic bool) error {
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// Upgrade restic
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if restic {
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InstallRestic()
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upgradeRestic()
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}
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// Upgrade self
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current, err := semver.ParseTolerant(internal.VERSION)
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if err != nil {
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return err
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}
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body, err := dlJSON("https://api.github.com/repos/cupcakearmy/autorestic/releases/latest")
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if err != nil {
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return err
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}
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latest, err := semver.ParseTolerant(body.Tag)
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if err != nil {
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return err
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}
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if current.GT(latest) {
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// TODO: Actually download and install
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colors.Success.Println("Updated autorestic")
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} else {
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colors.Body.Println("Already up to date")
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}
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return nil
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}
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