feat(migrations): GraphQL fast path for GitHub migration + rate-limit resilience (#38694)

Adds a batched GraphQL path for GitHub migrations that fetches each
issue or pull request together with its comments, reviews, reactions and
timeline events instead of the REST N+1 pattern, sharply reducing
rate-limit pressure on large repositories.

- GraphQL is used for authenticated migrations with issues or pull
requests and falls back to REST automatically when it fails
- timeline events (close/reopen, lock, rename, label, milestone, merge,
branch deletion, pin, auto-merge) are imported as typed comments showing
their GitHub author
- GitBucket issue migrations no longer stop after the first page,
GitBucket sends no Link header

Fixes: https://github.com/go-gitea/gitea/issues/13243
Fixes: https://github.com/go-gitea/gitea/issues/31856
Signed-off-by: David E. Lovas <david@rexovas.com>
Co-authored-by: bircni <bircni@icloud.com>
Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: Giteabot <teabot@gitea.io>
This commit is contained in:
authored and GitHub committed 2026-10-23 02:23:28 +00:00
1 parent c45af635e4
commit 6624d96689
19 files changed
+2115 -141

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+13
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@@ -218,6 +218,19 @@ func TestCombineLabelComments(t *testing.T) {
},
},
},
{
name: "migrated events of different original authors",
beforeCombined: []*issues_model.Comment{
{Type: issues_model.CommentTypeComment, PosterID: 1},
{Type: issues_model.CommentTypeLabel, PosterID: 1, OriginalAuthor: "alice", Content: "1", Label: &issues_model.Label{Name: "kind/bug"}},
{Type: issues_model.CommentTypeLabel, PosterID: 1, OriginalAuthor: "bob", Content: "1", Label: &issues_model.Label{Name: "kind/ui"}},
},
afterCombined: []*issues_model.Comment{
{Type: issues_model.CommentTypeComment, PosterID: 1},
{Type: issues_model.CommentTypeLabel, PosterID: 1, OriginalAuthor: "alice", Content: "1", Label: &issues_model.Label{Name: "kind/bug"}, AddedLabels: []*issues_model.Label{{Name: "kind/bug"}}},
{Type: issues_model.CommentTypeLabel, PosterID: 1, OriginalAuthor: "bob", Content: "1", Label: &issues_model.Label{Name: "kind/ui"}, AddedLabels: []*issues_model.Label{{Name: "kind/ui"}}},
},
},
{
name: "kase 4",
beforeCombined: []*issues_model.Comment{
+1 -1
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@@ -231,7 +231,7 @@ func combineLabelComments(issue *issues_model.Issue) {
prev = issue.Comments[i-1]
}
if i == 0 || cur.Type != issues_model.CommentTypeLabel ||
(prev != nil && prev.PosterID != cur.PosterID) ||
(prev != nil && (prev.PosterID != cur.PosterID || prev.OriginalAuthor != cur.OriginalAuthor)) ||
(prev != nil && cur.CreatedUnix-prev.CreatedUnix >= 60) ||
(prev != nil && !sameCommentMetaData(prev.CommentMetaData, cur.CommentMetaData)) {
if cur.Type == issues_model.CommentTypeLabel && cur.Label != nil {