|
| 1 | +package cmd |
| 2 | + |
| 3 | +import ( |
| 4 | + "archive/tar" |
| 5 | + "compress/gzip" |
| 6 | + "errors" |
| 7 | + "github.com/spf13/cobra" |
| 8 | + "io" |
| 9 | + "net/http" |
| 10 | + "os" |
| 11 | + "os/exec" |
| 12 | + "runtime" |
| 13 | + "strings" |
| 14 | +) |
| 15 | + |
| 16 | +var updateCmd = &cobra.Command{ |
| 17 | + Use: "update", |
| 18 | + Short: "Update Swiftwave to the latest minor patch version", |
| 19 | + Long: `Update Swiftwave to the latest minor patch version`, |
| 20 | + Run: func(cmd *cobra.Command, args []string) { |
| 21 | + if swiftwaveVersion == "develop" { |
| 22 | + printError("You should use a stable version of Swiftwave to avail this feature") |
| 23 | + return |
| 24 | + } |
| 25 | + // fetch latest tag commit |
| 26 | + latestTag, err := fetchLatestTag(swiftwaveVersion) |
| 27 | + if err != nil { |
| 28 | + printError("Failed to fetch latest tag") |
| 29 | + return |
| 30 | + } |
| 31 | + // fetch package download url |
| 32 | + downloadUrl, err := fetchPackageDownloadURL(latestTag) |
| 33 | + if err != nil { |
| 34 | + printError("Failed to fetch package download url") |
| 35 | + return |
| 36 | + } |
| 37 | + // download the package in tmpfs and extract it |
| 38 | + downloadedPackagePath, err := downloadPackage(downloadUrl) |
| 39 | + if err != nil { |
| 40 | + printError("Failed to download and extract the package") |
| 41 | + return |
| 42 | + } |
| 43 | + // extract the package |
| 44 | + err = extractTarGz(downloadedPackagePath, "/tmp/swiftwave-update") |
| 45 | + if err != nil { |
| 46 | + printError("Failed to extract the package") |
| 47 | + return |
| 48 | + } |
| 49 | + // new swiftwave binary path |
| 50 | + newBinaryPath := "/tmp/swiftwave-update/swiftwave" |
| 51 | + // check if new binary exists |
| 52 | + if _, err := os.Stat(newBinaryPath); os.IsNotExist(err) { |
| 53 | + printError("Failed to find new binary") |
| 54 | + return |
| 55 | + } |
| 56 | + // make new binary executable |
| 57 | + err = os.Chmod(newBinaryPath, 0755) |
| 58 | + if err != nil { |
| 59 | + printError("Failed to make new binary executable") |
| 60 | + return |
| 61 | + } |
| 62 | + // replace it at /usr/bin/swiftwave |
| 63 | + err = os.Rename(newBinaryPath, "/usr/bin/swiftwave") |
| 64 | + if err != nil { |
| 65 | + printError("Failed to replace binary") |
| 66 | + return |
| 67 | + } |
| 68 | + // daemon-reload |
| 69 | + runCommand := exec.Command("systemctl", "daemon-reload") |
| 70 | + err = runCommand.Run() |
| 71 | + if err != nil { |
| 72 | + printError("Failed to reload systemd daemon") |
| 73 | + return |
| 74 | + } |
| 75 | + // restart swiftwave service |
| 76 | + runCommand = exec.Command("systemctl", "restart", "swiftwave.service") |
| 77 | + err = runCommand.Run() |
| 78 | + if err != nil { |
| 79 | + printError("Failed to restart swiftwave service") |
| 80 | + return |
| 81 | + } |
| 82 | + printSuccess("Updated Swiftwave to " + latestTag) |
| 83 | + }, |
| 84 | +} |
| 85 | + |
| 86 | +func getMajorVersion(version string) string { |
| 87 | + splitVersion := strings.Split(version, ".") |
| 88 | + return splitVersion[0] |
| 89 | +} |
| 90 | + |
| 91 | +func fetchLatestTag(currentVersion string) (string, error) { |
| 92 | + tagPrefix := getMajorVersion(currentVersion) |
| 93 | + tagListUrl := "https://api.github.com/repos/swiftwave-org/swiftwave/git/refs/tags/" + tagPrefix |
| 94 | + res, err := http.Get(tagListUrl) |
| 95 | + if err != nil || res.StatusCode != 200 { |
| 96 | + return "", err |
| 97 | + } |
| 98 | + resBody, err := io.ReadAll(res.Body) |
| 99 | + if err != nil { |
| 100 | + return "", err |
| 101 | + } |
| 102 | + // fetch last tag |
| 103 | + lastTag := "" |
| 104 | + for _, tag := range strings.Split(string(resBody), "refs/tags/") { |
| 105 | + if tag != "" { |
| 106 | + lastTag = strings.Split(tag, "\"")[0] |
| 107 | + } |
| 108 | + } |
| 109 | + if lastTag == "" { |
| 110 | + return "", err |
| 111 | + } |
| 112 | + return lastTag, nil |
| 113 | +} |
| 114 | + |
| 115 | +func fetchPackageDownloadURL(tag string) (string, error) { |
| 116 | + packageFileName := "swiftwave-" + tag + "-" + runtime.GOOS + "-" + runtime.GOARCH + ".tar.gz" |
| 117 | + packageDownloadUrl := "" |
| 118 | + // fetch release info |
| 119 | + releaseInfoUrl := "https://api.github.com/repos/swiftwave-org/swiftwave/releases/tags/" + tag |
| 120 | + res, err := http.Get(releaseInfoUrl) |
| 121 | + if err != nil || res.StatusCode != 200 { |
| 122 | + return "", err |
| 123 | + } |
| 124 | + resBody, err := io.ReadAll(res.Body) |
| 125 | + if err != nil { |
| 126 | + return "", err |
| 127 | + } |
| 128 | + // fetch download url |
| 129 | + for _, asset := range strings.Split(string(resBody), "browser_download_url") { |
| 130 | + if asset != "" && len(strings.Split(asset, "\"")) > 2 { |
| 131 | + assetUrl := strings.Split(asset, "\"")[2] |
| 132 | + if strings.Contains(assetUrl, packageFileName) && |
| 133 | + !strings.Contains(assetUrl, packageFileName+".md5") { |
| 134 | + packageDownloadUrl = assetUrl |
| 135 | + } |
| 136 | + } |
| 137 | + } |
| 138 | + if packageDownloadUrl == "" { |
| 139 | + return "", errors.New("failed to fetch package download url") |
| 140 | + } |
| 141 | + return packageDownloadUrl, nil |
| 142 | +} |
| 143 | + |
| 144 | +func downloadPackage(url string) (string, error) { |
| 145 | + filename := url[strings.LastIndex(url, "/")+1:] |
| 146 | + // download the package |
| 147 | + file, err := os.Create("/tmp/" + filename) |
| 148 | + if err != nil { |
| 149 | + return "", err |
| 150 | + } |
| 151 | + defer func(file *os.File) { |
| 152 | + err := file.Close() |
| 153 | + if err != nil { |
| 154 | + return |
| 155 | + } |
| 156 | + }(file) |
| 157 | + resp, err := http.Get(url) |
| 158 | + if err != nil { |
| 159 | + return "", err |
| 160 | + } |
| 161 | + defer func(resp *http.Response) { |
| 162 | + err := resp.Body.Close() |
| 163 | + if err != nil { |
| 164 | + return |
| 165 | + } |
| 166 | + }(resp) |
| 167 | + _, err = io.Copy(file, resp.Body) |
| 168 | + if err != nil { |
| 169 | + return "", err |
| 170 | + } |
| 171 | + return "/tmp/" + filename, nil |
| 172 | +} |
| 173 | + |
| 174 | +func extractTarGz(downloadedPackagePath, destFolder string) error { |
| 175 | + _ = os.RemoveAll(destFolder) |
| 176 | + err := os.MkdirAll(destFolder, 0755) |
| 177 | + if err != nil { |
| 178 | + return err |
| 179 | + } |
| 180 | + // open downloaded package |
| 181 | + file, err := os.Open(downloadedPackagePath) |
| 182 | + if err != nil { |
| 183 | + return err |
| 184 | + } |
| 185 | + defer func(file *os.File) { |
| 186 | + err := file.Close() |
| 187 | + if err != nil { |
| 188 | + return |
| 189 | + } |
| 190 | + }(file) |
| 191 | + // read gzip file |
| 192 | + gzipReader, err := gzip.NewReader(file) |
| 193 | + if err != nil { |
| 194 | + return err |
| 195 | + } |
| 196 | + defer func(gzipReader *gzip.Reader) { |
| 197 | + err := gzipReader.Close() |
| 198 | + if err != nil { |
| 199 | + return |
| 200 | + } |
| 201 | + }(gzipReader) |
| 202 | + // extract tar file |
| 203 | + tarReader := tar.NewReader(gzipReader) |
| 204 | + for { |
| 205 | + header, err := tarReader.Next() |
| 206 | + if err != nil { |
| 207 | + if err == io.EOF { |
| 208 | + break |
| 209 | + } |
| 210 | + return err |
| 211 | + } |
| 212 | + // get filename from header |
| 213 | + filename := header.Name |
| 214 | + // check if file is directory |
| 215 | + if header.Typeflag == tar.TypeDir { |
| 216 | + err = os.MkdirAll(destFolder+"/"+filename, 0755) |
| 217 | + if err != nil { |
| 218 | + return err |
| 219 | + } |
| 220 | + continue |
| 221 | + } |
| 222 | + // create file |
| 223 | + file, err := os.Create(destFolder + "/" + filename) |
| 224 | + if err != nil { |
| 225 | + return err |
| 226 | + } |
| 227 | + defer func(file *os.File) { |
| 228 | + err := file.Close() |
| 229 | + if err != nil { |
| 230 | + return |
| 231 | + } |
| 232 | + }(file) |
| 233 | + // copy file data |
| 234 | + _, err = io.Copy(file, tarReader) |
| 235 | + if err != nil { |
| 236 | + return err |
| 237 | + } |
| 238 | + } |
| 239 | + return nil |
| 240 | +} |
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