feat: customize launcher version check and CI/CD release workflow for G-Launcher
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@@ -1,57 +1,179 @@
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package gitService
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import (
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"crypto/sha256"
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"crypto/subtle"
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"encoding/hex"
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"encoding/json"
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"g-launcher/pkg/constant"
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"g-launcher/pkg/models"
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"fmt"
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"io"
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"net/http"
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"github.com/minio/selfupdate"
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"net/url"
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"os"
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"regexp"
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"strings"
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"time"
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"g-launcher/pkg/constant"
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"g-launcher/pkg/models"
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"github.com/minio/selfupdate"
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)
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type GitService struct{}
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func (g *GitService) GetLatestLauncherVersion() (bool, string, string) {
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resp, err := http.Get(constant.LauncherGitUrl)
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if err != nil {
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return false, "", err.Error()
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}
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defer resp.Body.Close()
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body, _ := io.ReadAll(resp.Body)
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var releases []models.ReleaseType
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err = json.Unmarshal(body, &releases)
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if err != nil {
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return false, "", err.Error()
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}
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if len(releases) == 0 {
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return false, "", "no releases found"
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}
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return true, releases[0].TagName, ""
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type launcherManifest struct {
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Version string `json:"version"`
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SHA256 string `json:"sha256"`
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}
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var launcherVersionPattern = regexp.MustCompile(`^(0|[1-9][0-9]*)\.(0|[1-9][0-9]*)\.(0|[1-9][0-9]*)$`)
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func (g *GitService) GetLatestLauncherVersion() (bool, string, string) {
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// First, attempt to check via latest.json manifest
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if constant.LauncherManifestURL != "" {
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manifest, err := fetchLauncherManifest(constant.LauncherManifestURL)
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if err == nil && manifest.Version != "" {
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return true, manifest.Version, ""
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}
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}
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// Fallback to Gitea/Forgejo/GitHub Releases API
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if constant.LauncherGitUrl != "" {
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resp, err := http.Get(constant.LauncherGitUrl)
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if err == nil {
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defer resp.Body.Close()
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body, readErr := io.ReadAll(resp.Body)
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if readErr == nil {
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var releases []models.ReleaseType
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if json.Unmarshal(body, &releases) == nil && len(releases) > 0 {
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return true, releases[0].TagName, ""
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}
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}
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}
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}
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return false, "", "no launcher updates found"
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}
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func (g *GitService) UpdateLauncherProgress(version string) (bool, string) {
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asset, ok := g.getReleaseAsset(version, constant.LauncherGitUrl, constant.LauncherFile)
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if !ok {
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return false, "no release found"
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if !constant.LauncherUpdatesEnabled {
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return false, "launcher updates are disabled in development builds"
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}
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resp, err := http.Get(asset.BrowserDownloadURL)
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if err != nil {
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return false, err.Error()
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// Mode 1: Manifest-based update with SHA-256 integrity verification
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if constant.LauncherManifestURL != "" && constant.LauncherDownloadURL != "" {
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manifest, err := fetchLauncherManifest(constant.LauncherManifestURL)
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if err == nil && manifest.Version == version && manifest.SHA256 != "" {
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return g.applyManifestUpdate(manifest)
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}
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}
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defer resp.Body.Close()
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err = selfupdate.Apply(resp.Body, selfupdate.Options{})
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if err != nil {
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return false, err.Error()
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// Mode 2: Release API fallback
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if constant.LauncherGitUrl != "" {
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asset, ok := g.getReleaseAsset(version, constant.LauncherGitUrl, constant.LauncherFile)
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if ok && asset.BrowserDownloadURL != "" {
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resp, err := http.Get(asset.BrowserDownloadURL)
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if err != nil {
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return false, err.Error()
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}
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defer resp.Body.Close()
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err = selfupdate.Apply(resp.Body, selfupdate.Options{})
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if err != nil {
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return false, err.Error()
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}
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return true, ""
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}
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}
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return false, "could not locate valid launcher update package"
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}
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func (g *GitService) applyManifestUpdate(manifest launcherManifest) (bool, string) {
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client := &http.Client{Timeout: 10 * time.Minute}
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response, err := client.Get(constant.LauncherDownloadURL)
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if err != nil {
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return false, fmt.Errorf("download launcher update: %w", err).Error()
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}
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defer response.Body.Close()
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if response.StatusCode < http.StatusOK || response.StatusCode >= http.StatusMultipleChoices {
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return false, fmt.Sprintf("download launcher update: server returned %s", response.Status)
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}
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temporaryFile, err := os.CreateTemp("", "g-launcher-update-*.exe")
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if err != nil {
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return false, fmt.Errorf("create temporary launcher update: %w", err).Error()
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}
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temporaryPath := temporaryFile.Name()
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defer os.Remove(temporaryPath)
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hash := sha256.New()
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if _, err := io.Copy(io.MultiWriter(temporaryFile, hash), response.Body); err != nil {
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temporaryFile.Close()
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return false, fmt.Errorf("save launcher update: %w", err).Error()
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}
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if err := temporaryFile.Close(); err != nil {
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return false, fmt.Errorf("close launcher update: %w", err).Error()
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}
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expectedHash, err := hex.DecodeString(manifest.SHA256)
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if err != nil || subtle.ConstantTimeCompare(hash.Sum(nil), expectedHash) != 1 {
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return false, "launcher update checksum mismatch"
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}
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updateFile, err := os.Open(temporaryPath)
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if err != nil {
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return false, fmt.Errorf("open launcher update: %w", err).Error()
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}
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defer updateFile.Close()
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if err := selfupdate.Apply(updateFile, selfupdate.Options{}); err != nil {
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return false, fmt.Errorf("apply launcher update: %w", err).Error()
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}
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return true, ""
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}
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}
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func fetchLauncherManifest(manifestURL string) (launcherManifest, error) {
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parsedURL, err := url.Parse(manifestURL)
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if err != nil || (parsedURL.Scheme != "https" && parsedURL.Scheme != "http") {
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return launcherManifest{}, fmt.Errorf("invalid launcher manifest URL")
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}
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query := parsedURL.Query()
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query.Set("_", fmt.Sprintf("%d", time.Now().UnixNano()))
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parsedURL.RawQuery = query.Encode()
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request, err := http.NewRequest(http.MethodGet, parsedURL.String(), nil)
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if err != nil {
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return launcherManifest{}, fmt.Errorf("create launcher manifest request: %w", err)
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}
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request.Header.Set("Cache-Control", "no-cache")
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request.Header.Set("User-Agent", "G-Launcher")
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client := &http.Client{Timeout: 20 * time.Second}
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response, err := client.Do(request)
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if err != nil {
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return launcherManifest{}, fmt.Errorf("check launcher updates: %w", err)
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}
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defer response.Body.Close()
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if response.StatusCode < http.StatusOK || response.StatusCode >= http.StatusMultipleChoices {
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return launcherManifest{}, fmt.Errorf("check launcher updates: server returned %s", response.Status)
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}
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var manifest launcherManifest
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if err := json.NewDecoder(io.LimitReader(response.Body, 1<<20)).Decode(&manifest); err != nil {
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return launcherManifest{}, fmt.Errorf("read launcher update manifest: %w", err)
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}
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if !launcherVersionPattern.MatchString(manifest.Version) {
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return launcherManifest{}, fmt.Errorf("launcher update manifest has invalid version %q", manifest.Version)
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}
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manifest.SHA256 = strings.TrimSpace(manifest.SHA256)
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if len(manifest.SHA256) != sha256.Size*2 {
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return launcherManifest{}, fmt.Errorf("launcher update manifest has invalid SHA-256")
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}
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if _, err := hex.DecodeString(manifest.SHA256); err != nil {
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return launcherManifest{}, fmt.Errorf("launcher update manifest has invalid SHA-256: %w", err)
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}
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manifest.SHA256 = strings.ToLower(manifest.SHA256)
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return manifest, nil
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}
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