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| 1 | +package mirroring |
| 2 | + |
| 3 | +import ( |
| 4 | + "fmt" |
| 5 | + "gitlab-sync/pkg/helpers" |
| 6 | + "sync" |
| 7 | + |
| 8 | + gitlab "gitlab.com/gitlab-org/api/client-go" |
| 9 | + "go.uber.org/zap" |
| 10 | +) |
| 11 | + |
| 12 | +// =========================================================================== |
| 13 | +// RELEASES MIRRORING FUNCTIONS // |
| 14 | +// =========================================================================== |
| 15 | + |
| 16 | +// ================ |
| 17 | +// GET |
| 18 | +// ================ |
| 19 | + |
| 20 | +// FetchProjectReleases retrieves all releases for a project and returns them |
| 21 | +func (g *GitlabInstance) FetchProjectReleases(project *gitlab.Project) ([]*gitlab.Release, error) { |
| 22 | + zap.L().Debug("Fetching releases for project", zap.String("project", project.PathWithNamespace)) |
| 23 | + fetchOpts := &gitlab.ListReleasesOptions{ |
| 24 | + ListOptions: gitlab.ListOptions{ |
| 25 | + PerPage: 100, |
| 26 | + Page: 1, |
| 27 | + }, |
| 28 | + } |
| 29 | + |
| 30 | + var releases = make([]*gitlab.Release, 0) |
| 31 | + |
| 32 | + for { |
| 33 | + fetchedReleases, resp, err := g.Gitlab.Releases.ListReleases(project.ID, fetchOpts) |
| 34 | + if err != nil { |
| 35 | + return nil, err |
| 36 | + } |
| 37 | + releases = append(releases, fetchedReleases...) |
| 38 | + |
| 39 | + if resp.CurrentPage >= resp.TotalPages { |
| 40 | + break |
| 41 | + } |
| 42 | + fetchOpts.Page = resp.NextPage |
| 43 | + } |
| 44 | + |
| 45 | + return releases, nil |
| 46 | +} |
| 47 | + |
| 48 | +// FetchProjectReleasesTags retrieves all release tags for a project and returns them as a map |
| 49 | +func (g *GitlabInstance) FetchProjectReleasesTags(project *gitlab.Project) (map[string]struct{}, error) { |
| 50 | + // Fetch existing releases from the destination project |
| 51 | + releases, err := g.FetchProjectReleases(project) |
| 52 | + if err != nil { |
| 53 | + return nil, err |
| 54 | + } |
| 55 | + |
| 56 | + // Create a map of existing release tags for quick lookup |
| 57 | + releasesTags := make(map[string]struct{}) |
| 58 | + for _, release := range releases { |
| 59 | + if release != nil { |
| 60 | + releasesTags[release.TagName] = struct{}{} |
| 61 | + } |
| 62 | + } |
| 63 | + return releasesTags, nil |
| 64 | +} |
| 65 | + |
| 66 | +// ================ |
| 67 | +// POST |
| 68 | +// ================ |
| 69 | + |
| 70 | +// MirrorRelease creates a release in the destination project |
| 71 | +func (g *GitlabInstance) MirrorRelease(project *gitlab.Project, release *gitlab.Release) error { |
| 72 | + zap.L().Debug("Creating release in destination project", zap.String("release", release.TagName), zap.String(ROLE_DESTINATION, project.HTTPURLToRepo)) |
| 73 | + |
| 74 | + // Create the release in the destination project |
| 75 | + _, _, err := g.Gitlab.Releases.CreateRelease(project.ID, &gitlab.CreateReleaseOptions{ |
| 76 | + Name: &release.Name, |
| 77 | + TagName: &release.TagName, |
| 78 | + Description: &release.Description, |
| 79 | + ReleasedAt: release.ReleasedAt, |
| 80 | + }) |
| 81 | + return err |
| 82 | +} |
| 83 | + |
| 84 | +// ================ |
| 85 | +// CONTROLLER |
| 86 | +// ================ |
| 87 | + |
| 88 | +// MirrorReleases mirrors releases from the source project to the destination project. |
| 89 | +// It fetches existing releases from the destination project and creates new releases for those that do not exist. |
| 90 | +// The function handles the API calls concurrently using goroutines |
| 91 | +func (destinationGitlab *GitlabInstance) MirrorReleases(sourceGitlab *GitlabInstance, sourceProject *gitlab.Project, destinationProject *gitlab.Project) []error { |
| 92 | + zap.L().Info("Starting releases mirroring", zap.String(ROLE_SOURCE, sourceProject.HTTPURLToRepo), zap.String(ROLE_DESTINATION, destinationProject.HTTPURLToRepo)) |
| 93 | + // Fetch existing releases from the destination project |
| 94 | + existingReleasesTags, err := destinationGitlab.FetchProjectReleasesTags(destinationProject) |
| 95 | + if err != nil { |
| 96 | + return []error{fmt.Errorf("failed to fetch existing releases for destination project %s: %s", destinationProject.HTTPURLToRepo, err)} |
| 97 | + } |
| 98 | + |
| 99 | + // Fetch releases from the source project |
| 100 | + sourceReleases, err := sourceGitlab.FetchProjectReleases(sourceProject) |
| 101 | + if err != nil { |
| 102 | + return []error{fmt.Errorf("failed to fetch releases for source project %s: %s", sourceProject.HTTPURLToRepo, err)} |
| 103 | + } |
| 104 | + |
| 105 | + // Create a wait group and an error channel for handling API calls concurrently |
| 106 | + var wg sync.WaitGroup |
| 107 | + errorChan := make(chan error, len(sourceReleases)) |
| 108 | + |
| 109 | + // Iterate over each source release |
| 110 | + for _, release := range sourceReleases { |
| 111 | + // Check if the release already exists in the destination project |
| 112 | + if _, exists := existingReleasesTags[release.TagName]; exists { |
| 113 | + zap.L().Debug("Release already exists", zap.String("release", release.TagName), zap.String(ROLE_DESTINATION, destinationProject.HTTPURLToRepo)) |
| 114 | + continue |
| 115 | + } |
| 116 | + |
| 117 | + // Increment the wait group counter |
| 118 | + wg.Add(1) |
| 119 | + |
| 120 | + // Define the API call logic for creating a release |
| 121 | + go func(releaseToMirror *gitlab.Release) { |
| 122 | + defer wg.Done() |
| 123 | + err := destinationGitlab.MirrorRelease(destinationProject, releaseToMirror) |
| 124 | + if err != nil { |
| 125 | + errorChan <- fmt.Errorf("failed to create release %s in project %s: %s", releaseToMirror.TagName, destinationProject.HTTPURLToRepo, err) |
| 126 | + } |
| 127 | + }(release) |
| 128 | + } |
| 129 | + |
| 130 | + // Wait for all goroutines to finish |
| 131 | + wg.Wait() |
| 132 | + close(errorChan) |
| 133 | + |
| 134 | + zap.L().Info("Releases mirroring completed", zap.String(ROLE_SOURCE, sourceProject.HTTPURLToRepo), zap.String(ROLE_DESTINATION, destinationProject.HTTPURLToRepo)) |
| 135 | + return helpers.MergeErrors(errorChan) |
| 136 | +} |
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