|
| 1 | +package github |
| 2 | + |
| 3 | +import ( |
| 4 | + "context" |
| 5 | + "fmt" |
| 6 | + "io/ioutil" |
| 7 | + "net/http" |
| 8 | + "os" |
| 9 | + "regexp" |
| 10 | + "runtime" |
| 11 | + "sort" |
| 12 | + "strings" |
| 13 | + |
| 14 | + "github.com/Masterminds/semver/v3" |
| 15 | + "github.com/go-semantic-release/semantic-release/v2/pkg/plugin" |
| 16 | + "github.com/go-semantic-release/semantic-release/v2/pkg/plugin/discovery/resolver" |
| 17 | + "github.com/google/go-github/v45/github" |
| 18 | + "golang.org/x/oauth2" |
| 19 | +) |
| 20 | + |
| 21 | +type GitHubResolver struct { |
| 22 | + ghClient *github.Client |
| 23 | +} |
| 24 | + |
| 25 | +func NewResolver() *GitHubResolver { |
| 26 | + var tc *http.Client |
| 27 | + if ghToken := os.Getenv("GITHUB_TOKEN"); ghToken != "" { |
| 28 | + tc = oauth2.NewClient(context.Background(), oauth2.StaticTokenSource(&oauth2.Token{AccessToken: ghToken})) |
| 29 | + } |
| 30 | + return &GitHubResolver{ |
| 31 | + ghClient: github.NewClient(tc), |
| 32 | + } |
| 33 | +} |
| 34 | + |
| 35 | +func (g *GitHubResolver) githubReleaseToDownloadInfo(repoOwner, repoName string, release *github.RepositoryRelease) (*resolver.PluginDownloadInfo, error) { |
| 36 | + var checksumAsset *github.ReleaseAsset |
| 37 | + var pluginAsset *github.ReleaseAsset |
| 38 | + osArchRe := regexp.MustCompile("(?i)" + runtime.GOOS + "(_|-)" + runtime.GOARCH) |
| 39 | + for _, asset := range release.Assets { |
| 40 | + assetName := asset.GetName() |
| 41 | + if checksumAsset == nil && asset.GetSize() <= 4096 && strings.Contains(strings.ToLower(assetName), "checksum") { |
| 42 | + checksumAsset = asset |
| 43 | + } |
| 44 | + if pluginAsset == nil && osArchRe.MatchString(assetName) { |
| 45 | + pluginAsset = asset |
| 46 | + } |
| 47 | + } |
| 48 | + |
| 49 | + if pluginAsset == nil { |
| 50 | + return nil, fmt.Errorf("no matching plugin binary was found for %s/%s", runtime.GOOS, runtime.GOARCH) |
| 51 | + } |
| 52 | + |
| 53 | + foundChecksum := "" |
| 54 | + if checksumAsset != nil { |
| 55 | + checksumDownload, _, err := g.ghClient.Repositories.DownloadReleaseAsset(context.Background(), repoOwner, repoName, checksumAsset.GetID(), http.DefaultClient) |
| 56 | + if err != nil { |
| 57 | + return nil, err |
| 58 | + } |
| 59 | + checksumData, err := ioutil.ReadAll(checksumDownload) |
| 60 | + checksumDownload.Close() |
| 61 | + if err != nil { |
| 62 | + return nil, err |
| 63 | + } |
| 64 | + for _, l := range strings.Split(string(checksumData), "\n") { |
| 65 | + sl := strings.Split(l, " ") |
| 66 | + if len(sl) < 3 { |
| 67 | + continue |
| 68 | + } |
| 69 | + if sl[2] == pluginAsset.GetName() { |
| 70 | + foundChecksum = sl[0] |
| 71 | + } |
| 72 | + } |
| 73 | + } |
| 74 | + |
| 75 | + return &resolver.PluginDownloadInfo{ |
| 76 | + URL: pluginAsset.GetBrowserDownloadURL(), |
| 77 | + Checksum: foundChecksum, |
| 78 | + FileName: pluginAsset.GetName(), |
| 79 | + Version: strings.TrimLeft(release.GetTagName(), "v"), |
| 80 | + }, nil |
| 81 | +} |
| 82 | + |
| 83 | +type ghRelease struct { |
| 84 | + version *semver.Version |
| 85 | + release *github.RepositoryRelease |
| 86 | +} |
| 87 | + |
| 88 | +type ghReleases []*ghRelease |
| 89 | + |
| 90 | +func (gr ghReleases) Len() int { return len(gr) } |
| 91 | +func (gr ghReleases) Less(i, j int) bool { return gr[j].version.LessThan(gr[i].version) } |
| 92 | +func (gr ghReleases) Swap(i, j int) { gr[i], gr[j] = gr[j], gr[i] } |
| 93 | + |
| 94 | +func (g *GitHubResolver) getAllValidGitHubReleases(repoOwner, repoName string) (ghReleases, error) { |
| 95 | + ret := make(ghReleases, 0) |
| 96 | + opts := &github.ListOptions{Page: 1, PerPage: 100} |
| 97 | + for { |
| 98 | + releases, resp, err := g.ghClient.Repositories.ListReleases(context.Background(), repoOwner, repoName, opts) |
| 99 | + if err != nil { |
| 100 | + return nil, err |
| 101 | + } |
| 102 | + for _, release := range releases { |
| 103 | + if release.GetDraft() { |
| 104 | + continue |
| 105 | + } |
| 106 | + |
| 107 | + if semverTag, err := semver.NewVersion(release.GetTagName()); err == nil { |
| 108 | + ret = append(ret, &ghRelease{version: semverTag, release: release}) |
| 109 | + } |
| 110 | + } |
| 111 | + |
| 112 | + if resp.NextPage == 0 { |
| 113 | + break |
| 114 | + } |
| 115 | + opts.Page = resp.NextPage |
| 116 | + } |
| 117 | + sort.Sort(ret) |
| 118 | + return ret, nil |
| 119 | +} |
| 120 | + |
| 121 | +func (g *GitHubResolver) ResolvePlugin(pluginInfo *plugin.PluginInfo) (*resolver.PluginDownloadInfo, error) { |
| 122 | + if pluginInfo.RepoSlug == "" { |
| 123 | + pluginInfo.RepoSlug = knownPlugins[pluginInfo.ShortNormalizedName] |
| 124 | + } |
| 125 | + if pluginInfo.RepoSlug == "" { |
| 126 | + return nil, fmt.Errorf("repo slug not found") |
| 127 | + } |
| 128 | + repoOwner, repoName, _ := strings.Cut(pluginInfo.RepoSlug, "/") |
| 129 | + |
| 130 | + var foundRelease *github.RepositoryRelease |
| 131 | + if pluginInfo.Constraint == nil { |
| 132 | + release, _, err := g.ghClient.Repositories.GetLatestRelease(context.Background(), repoOwner, repoName) |
| 133 | + if err != nil { |
| 134 | + return nil, err |
| 135 | + } |
| 136 | + foundRelease = release |
| 137 | + } else { |
| 138 | + validReleases, err := g.getAllValidGitHubReleases(repoOwner, repoName) |
| 139 | + if err != nil { |
| 140 | + return nil, err |
| 141 | + } |
| 142 | + for _, release := range validReleases { |
| 143 | + if pluginInfo.Constraint.Check(release.version) { |
| 144 | + foundRelease = release.release |
| 145 | + break |
| 146 | + } |
| 147 | + } |
| 148 | + } |
| 149 | + |
| 150 | + if foundRelease == nil { |
| 151 | + return nil, fmt.Errorf("no matching release was found") |
| 152 | + } |
| 153 | + |
| 154 | + di, err := g.githubReleaseToDownloadInfo(repoOwner, repoName, foundRelease) |
| 155 | + return di, err |
| 156 | +} |
| 157 | + |
| 158 | +func (g *GitHubResolver) Names() []string { |
| 159 | + return []string{"github", "gh"} |
| 160 | +} |
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