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https://github.com/go-gitea/gitea
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Use known issue IID to generate new PR index number when migrating from GitLab (#28616)
Fix #13884
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parent
0e9c988373
commit
d68b9237bf
@ -55,19 +55,36 @@ func (f *GitlabDownloaderFactory) GitServiceType() structs.GitServiceType {
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return structs.GitlabService
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}
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type gitlabIIDResolver struct {
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maxIssueIID int64
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frozen bool
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}
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func (r *gitlabIIDResolver) recordIssueIID(issueIID int) {
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if r.frozen {
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panic("cannot record issue IID after pull request IID generation has started")
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}
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r.maxIssueIID = max(r.maxIssueIID, int64(issueIID))
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}
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func (r *gitlabIIDResolver) generatePullRequestNumber(mrIID int) int64 {
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r.frozen = true
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return r.maxIssueIID + int64(mrIID)
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}
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// GitlabDownloader implements a Downloader interface to get repository information
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// from gitlab via go-gitlab
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// - issueCount is incremented in GetIssues() to ensure PR and Issue numbers do not overlap,
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// because Gitlab has individual Issue and Pull Request numbers.
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type GitlabDownloader struct {
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base.NullDownloader
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ctx context.Context
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client *gitlab.Client
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baseURL string
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repoID int
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repoName string
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issueCount int64
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maxPerPage int
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ctx context.Context
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client *gitlab.Client
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baseURL string
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repoID int
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repoName string
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iidResolver gitlabIIDResolver
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maxPerPage int
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}
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// NewGitlabDownloader creates a gitlab Downloader via gitlab API
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@ -450,8 +467,8 @@ func (g *GitlabDownloader) GetIssues(page, perPage int) ([]*base.Issue, bool, er
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Context: gitlabIssueContext{IsMergeRequest: false},
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})
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// increment issueCount, to be used in GetPullRequests()
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g.issueCount++
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// record the issue IID, to be used in GetPullRequests()
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g.iidResolver.recordIssueIID(issue.IID)
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}
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return allIssues, len(issues) < perPage, nil
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@ -607,8 +624,8 @@ func (g *GitlabDownloader) GetPullRequests(page, perPage int) ([]*base.PullReque
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awardPage++
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}
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// Add the PR ID to the Issue Count because PR and Issues share ID space in Gitea
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newPRNumber := g.issueCount + int64(pr.IID)
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// Generate new PR Numbers by the known Issue Numbers, because they share the same number space in Gitea, but they are independent in Gitlab
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newPRNumber := g.iidResolver.generatePullRequestNumber(pr.IID)
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allPRs = append(allPRs, &base.PullRequest{
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Title: pr.Title,
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@ -516,3 +516,20 @@ func TestAwardsToReactions(t *testing.T) {
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},
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}, reactions)
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}
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func TestGitlabIIDResolver(t *testing.T) {
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r := gitlabIIDResolver{}
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r.recordIssueIID(1)
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r.recordIssueIID(2)
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r.recordIssueIID(3)
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r.recordIssueIID(2)
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assert.EqualValues(t, 4, r.generatePullRequestNumber(1))
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assert.EqualValues(t, 13, r.generatePullRequestNumber(10))
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assert.Panics(t, func() {
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r := gitlabIIDResolver{}
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r.recordIssueIID(1)
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assert.EqualValues(t, 2, r.generatePullRequestNumber(1))
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r.recordIssueIID(3) // the generation procedure has been started, it shouldn't accept any new issue IID, so it panics
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})
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}
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