Initial autoupdate feature #50
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,13 +1,220 @@ | ||
| package main | ||
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| import ( | ||
| "archive/tar" | ||
| "archive/zip" | ||
| "bufio" | ||
| "compress/gzip" | ||
| "fmt" | ||
| "io" | ||
| "log" | ||
| "net/http" | ||
| "os" | ||
| "path/filepath" | ||
| "runtime" | ||
| "strings" | ||
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| "github.com/loophole/cli/cmd" | ||
| "github.com/tcnksm/go-latest" | ||
| ) | ||
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| // Will be filled in during build | ||
| var version = "development" | ||
| var commit = "unknown" | ||
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| func main() { | ||
| githubTag := &latest.GithubTag{ | ||
| Owner: "loophole", | ||
| Repository: "cli", | ||
| } | ||
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| if version == "development" { | ||
| fmt.Println("Update check disabled while using development version.") | ||
| } else { | ||
| res, err := latest.Check(githubTag, version) | ||
| if err != nil { | ||
| log.Fatal("GithubTag error:" + err.Error()) | ||
| } | ||
| if _, err := os.Stat("loophole_version_" + res.Current); err == nil { | ||
| fmt.Println("################") | ||
| fmt.Println("It looks like you recently downloaded a newer version of Loophole, please use it instead of this one!") | ||
| fmt.Println("It should be located in the folder \"loophole_version_" + res.Current + "\"") | ||
| fmt.Println("################") | ||
| fmt.Println() | ||
| res.Outdated = false | ||
| } | ||
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| if res.Outdated { | ||
| reader := bufio.NewReader(os.Stdin) | ||
| fmt.Println("Your version of Loophole is outdated. Do you wish to download version " + res.Current + " now?") | ||
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| fmt.Print("Y/n : ") | ||
| text, _ := reader.ReadString('\n') | ||
| // convert CRLF to LF | ||
| text = strings.Replace(text, "\n", "", -1) | ||
|
Contributor
There was a problem hiding this comment. I think you should replace |
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| fmt.Println(text) | ||
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| if strings.Contains(text, "n") || strings.Contains(text, "N") { | ||
|
Contributor
There was a problem hiding this comment. You usually do it the other way around,
Contributor
Author
There was a problem hiding this comment. Was basing it on the way apt upgrade does it, but I guess users run that expecting to upgrade something, so continue as default is to be expected, unlike this where the update prompt might show up when a user just wants to use the program itself. Will reverse it. |
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| //skip update | ||
| } else { | ||
| archiveExt := ".tar.gz" | ||
| if runtime.GOOS == "windows" { | ||
| archiveExt = ".zip" | ||
| } | ||
| urlBase := "https://github.com/loophole/cli/releases/download/" | ||
| url := fmt.Sprintf("%s%s%s%s%s%s%s%s%s", urlBase, res.Current, "/loophole_", res.Current, "_", runtime.GOOS, "_", runtime.GOARCH, archiveExt) | ||
| fileName := "loophole_version_" + res.Current | ||
| archiveName := res.Current | ||
| err := download(archiveName+archiveExt, url) | ||
| if err != nil { | ||
| fmt.Println(err.Error()) | ||
| os.Exit(1) | ||
| } | ||
| if runtime.GOOS == "windows" { | ||
| err = extractZip(archiveName+archiveExt, fileName) | ||
| if err != nil { | ||
| fmt.Println(err.Error()) | ||
| os.Exit(1) | ||
| } | ||
| } else { | ||
| err = extractTarGz(archiveName+archiveExt, fileName) | ||
| if err != nil { | ||
| fmt.Println(err.Error()) | ||
| os.Exit(1) | ||
| } | ||
| } | ||
| err = os.Remove(archiveName + archiveExt) | ||
| if err != nil { | ||
| fmt.Println("Unable to delete downloaded compressed file: " + err.Error()) | ||
| } | ||
| fmt.Println("Download finished! Please start the new version located in the folder: loophole_version_" + res.Current) | ||
| os.Exit(0) | ||
| } | ||
| } | ||
| } | ||
| cmd.Execute(version, commit) | ||
| } | ||
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| func download(filepath string, url string) error { | ||
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| resp, err := http.Get(url) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer resp.Body.Close() | ||
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| file, err := os.Create(filepath) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer file.Close() | ||
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| _, err = io.Copy(file, resp.Body) | ||
| return err | ||
| } | ||
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| func extractTarGz(src, dest string) error { | ||
| sourceFile, err := os.Open(src) | ||
| if err != nil { | ||
| return err | ||
| } | ||
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| gzipReader, err := gzip.NewReader(sourceFile) | ||
| if err != nil { | ||
| return err | ||
| } | ||
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| tarReader := tar.NewReader(gzipReader) | ||
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| if err := os.Mkdir(dest, 0755); err != nil { | ||
| return err | ||
| } | ||
|
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| for true { | ||
| header, err := tarReader.Next() | ||
|
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| if err == io.EOF { | ||
| break | ||
| } | ||
|
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| if err != nil { | ||
| return err | ||
| } | ||
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| if strings.Contains(header.Name, "..") { | ||
| fmt.Println("Illegal path: File name contains '..'") | ||
| os.Exit(1) | ||
| } | ||
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| switch header.Typeflag { | ||
| case tar.TypeDir: | ||
| if err := os.Mkdir(header.Name, 0755); err != nil { | ||
| return err | ||
| } | ||
| case tar.TypeReg: | ||
| outFile, err := os.Create(dest + "/" + header.Name) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| if _, err := io.Copy(outFile, tarReader); err != nil { | ||
| return err | ||
| } | ||
| outFile.Close() | ||
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| default: | ||
| fmt.Printf("extractTarGz: unknown type: %b in %s", header.Typeflag, header.Name) | ||
| os.Exit(1) | ||
| } | ||
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| } | ||
| return nil | ||
| } | ||
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| func extractZip(src, dest string) error { | ||
| reader, err := zip.OpenReader(src) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer reader.Close() | ||
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| os.MkdirAll(dest, 0755) | ||
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| for _, file := range reader.File { | ||
| data, err := file.Open() | ||
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| if err != nil { | ||
| return err | ||
| } | ||
| defer data.Close() | ||
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| if strings.Contains(file.Name, "..") { | ||
| fmt.Println("Illegal path: File name contains '..'") | ||
| os.Exit(1) | ||
| } | ||
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| path := filepath.Join(dest, file.Name) | ||
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| if !strings.HasPrefix(path, filepath.Clean(dest)+string(os.PathSeparator)) { | ||
| return fmt.Errorf("illegal file path: %s", path) | ||
| } | ||
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| if file.FileInfo().IsDir() { | ||
| os.MkdirAll(path, file.Mode()) | ||
| } else { | ||
| os.MkdirAll(filepath.Dir(path), file.Mode()) | ||
| endFile, err := os.OpenFile(path, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, file.Mode()) | ||
| if err != nil { | ||
| return err | ||
| } | ||
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| _, err = io.Copy(endFile, data) | ||
| endFile.Close() | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
| } | ||
|
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| return nil | ||
| } | ||
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What if someone moves the binary to his
/usr/local/bin?