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Use known issue IID to generate new PR index number when migrating from GitLab (#28616)

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Fix #13884
This commit is contained in:
wxiaoguang
2023-12-27 01:57:25 +08:00
committed by GitHub
parent 0e9c988373
commit d68b9237bf
2 changed files with 45 additions and 11 deletions
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39
services/migrations/gitlab.go
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@@ -55,19 +55,36 @@ func (f *GitlabDownloaderFactory) GitServiceType() structs.GitServiceType {
return structs.GitlabService
}
type gitlabIIDResolver struct {
maxIssueIID int64
frozen bool
}
func (r *gitlabIIDResolver) recordIssueIID(issueIID int) {
if r.frozen {
panic("cannot record issue IID after pull request IID generation has started")
}
r.maxIssueIID = max(r.maxIssueIID, int64(issueIID))
}
func (r *gitlabIIDResolver) generatePullRequestNumber(mrIID int) int64 {
r.frozen = true
return r.maxIssueIID + int64(mrIID)
}
// GitlabDownloader implements a Downloader interface to get repository information
// from gitlab via go-gitlab
// - issueCount is incremented in GetIssues() to ensure PR and Issue numbers do not overlap,
// because Gitlab has individual Issue and Pull Request numbers.
type GitlabDownloader struct {
base.NullDownloader
ctx context.Context
client *gitlab.Client
baseURL string
repoID int
repoName string
issueCount int64
maxPerPage int
ctx context.Context
client *gitlab.Client
baseURL string
repoID int
repoName string
iidResolver gitlabIIDResolver
maxPerPage int
}
// NewGitlabDownloader creates a gitlab Downloader via gitlab API
@@ -450,8 +467,8 @@ func (g *GitlabDownloader) GetIssues(page, perPage int) ([]*base.Issue, bool, er
Context: gitlabIssueContext{IsMergeRequest: false},
})
// increment issueCount, to be used in GetPullRequests()
g.issueCount++
// record the issue IID, to be used in GetPullRequests()
g.iidResolver.recordIssueIID(issue.IID)
}
return allIssues, len(issues) < perPage, nil
@@ -607,8 +624,8 @@ func (g *GitlabDownloader) GetPullRequests(page, perPage int) ([]*base.PullReque
awardPage++
}
// Add the PR ID to the Issue Count because PR and Issues share ID space in Gitea
newPRNumber := g.issueCount + int64(pr.IID)
// Generate new PR Numbers by the known Issue Numbers, because they share the same number space in Gitea, but they are independent in Gitlab
newPRNumber := g.iidResolver.generatePullRequestNumber(pr.IID)
allPRs = append(allPRs, &base.PullRequest{
Title: pr.Title,