|
| 1 | +package update |
| 2 | + |
| 3 | +import ( |
| 4 | + "encoding/json" |
| 5 | + "errors" |
| 6 | + "fmt" |
| 7 | + "io/ioutil" |
| 8 | + "net/http" |
| 9 | + "runtime" |
| 10 | + "spotify/internal" |
| 11 | + "strings" |
| 12 | + |
| 13 | + "github.com/inconshreveable/go-update" |
| 14 | + "github.com/spf13/cobra" |
| 15 | +) |
| 16 | + |
| 17 | +func NewCommand() *cobra.Command { |
| 18 | + return &cobra.Command{ |
| 19 | + Use: "update", |
| 20 | + Short: "Update to the latest version.", |
| 21 | + RunE: func(cmd *cobra.Command, _ []string) error { |
| 22 | + version, err := updateFromGitHub("brianstrauch/spotify-cli") |
| 23 | + if err != nil { |
| 24 | + return err |
| 25 | + } |
| 26 | + |
| 27 | + cmd.Printf("Updated CLI to %s!\n", version) |
| 28 | + return nil |
| 29 | + }, |
| 30 | + } |
| 31 | +} |
| 32 | + |
| 33 | +type Asset struct { |
| 34 | + Name string `json:"name"` |
| 35 | + BrowserDownloadURL string `json:"browser_download_url"` |
| 36 | +} |
| 37 | + |
| 38 | +type Release struct { |
| 39 | + TagName string `json:"tag_name"` |
| 40 | + Assets []Asset `json:"assets"` |
| 41 | +} |
| 42 | + |
| 43 | +func updateFromGitHub(repo string) (string, error) { |
| 44 | + release, err := getLatestReleaseInfo(repo) |
| 45 | + if err != nil { |
| 46 | + return "", err |
| 47 | + } |
| 48 | + |
| 49 | + // TODO: Prevent installing same release |
| 50 | + |
| 51 | + for _, asset := range release.Assets { |
| 52 | + if strings.Contains(asset.Name, runtime.GOOS) && strings.Contains(asset.Name, runtime.GOARCH) { |
| 53 | + res, err := http.Get(asset.BrowserDownloadURL) |
| 54 | + if err != nil { |
| 55 | + return "", err |
| 56 | + } |
| 57 | + defer res.Body.Close() |
| 58 | + |
| 59 | + // TODO: Checksum |
| 60 | + if err := update.Apply(res.Body, update.Options{}); err != nil { |
| 61 | + return "", err |
| 62 | + } |
| 63 | + |
| 64 | + return release.TagName, nil |
| 65 | + } |
| 66 | + } |
| 67 | + |
| 68 | + return "", errors.New(internal.NoReleaseAvailable) |
| 69 | +} |
| 70 | + |
| 71 | +func getLatestReleaseInfo(repo string) (*Release, error) { |
| 72 | + url := fmt.Sprintf("https://api.github.com/repos/%s/releases/latest", repo) |
| 73 | + |
| 74 | + res, err := http.Get(url) |
| 75 | + if err != nil { |
| 76 | + return nil, err |
| 77 | + } |
| 78 | + defer res.Body.Close() |
| 79 | + |
| 80 | + data, err := ioutil.ReadAll(res.Body) |
| 81 | + if err != err { |
| 82 | + return nil, err |
| 83 | + } |
| 84 | + |
| 85 | + release := new(Release) |
| 86 | + if err := json.Unmarshal(data, release); err != nil { |
| 87 | + return nil, err |
| 88 | + } |
| 89 | + |
| 90 | + return release, nil |
| 91 | +} |
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