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Add a new table issue_index to store the max issue index so that issue could be deleted with no duplicated index (#15599)

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* Add a new table issue_index to store the max issue index so that issue could be deleted with no duplicated index

* Fix pull index

* Add tests for concurrent creating issues

* Fix lint

* Fix tests

* Fix postgres test

* Add test for migration v180

* Rename wrong test file name

Co-authored-by: 6543 <6543@obermui.de>
Co-authored-by: Lauris BH <lauris@nix.lv>
This commit is contained in:
Lunny Xiao
2021-06-14 10:22:55 +08:00
committed by GitHub
parent a005265718
commit 0393a57511
14 changed files with 354 additions and 82 deletions
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42
models/issue.go
View File

@@ -78,9 +78,8 @@ var (
)
const (
issueTasksRegexpStr = `(^\s*[-*]\s\[[\sxX]\]\s.)|(\n\s*[-*]\s\[[\sxX]\]\s.)`
issueTasksDoneRegexpStr = `(^\s*[-*]\s\[[xX]\]\s.)|(\n\s*[-*]\s\[[xX]\]\s.)`
issueMaxDupIndexAttempts = 3
issueTasksRegexpStr = `(^\s*[-*]\s\[[\sxX]\]\s.)|(\n\s*[-*]\s\[[\sxX]\]\s.)`
issueTasksDoneRegexpStr = `(^\s*[-*]\s\[[xX]\]\s.)|(\n\s*[-*]\s\[[xX]\]\s.)`
)
func init() {
@@ -896,21 +895,17 @@ func newIssue(e *xorm.Session, doer *User, opts NewIssueOptions) (err error) {
}
}
// Milestone validation should happen before insert actual object.
if _, err := e.SetExpr("`index`", "coalesce(MAX(`index`),0)+1").
Where("repo_id=?", opts.Issue.RepoID).
Insert(opts.Issue); err != nil {
return ErrNewIssueInsert{err}
if opts.Issue.Index <= 0 {
return fmt.Errorf("no issue index provided")
}
if opts.Issue.ID > 0 {
return fmt.Errorf("issue exist")
}
inserted, err := getIssueByID(e, opts.Issue.ID)
if err != nil {
if _, err := e.Insert(opts.Issue); err != nil {
return err
}
// Patch Index with the value calculated by the database
opts.Issue.Index = inserted.Index
if opts.Issue.MilestoneID > 0 {
if _, err = e.Exec("UPDATE `milestone` SET num_issues=num_issues+1 WHERE id=?", opts.Issue.MilestoneID); err != nil {
return err
@@ -987,24 +982,13 @@ func newIssue(e *xorm.Session, doer *User, opts NewIssueOptions) (err error) {
// NewIssue creates new issue with labels for repository.
func NewIssue(repo *Repository, issue *Issue, labelIDs []int64, uuids []string) (err error) {
// Retry several times in case INSERT fails due to duplicate key for (repo_id, index); see #7887
i := 0
for {
if err = newIssueAttempt(repo, issue, labelIDs, uuids); err == nil {
return nil
}
if !IsErrNewIssueInsert(err) {
return err
}
if i++; i == issueMaxDupIndexAttempts {
break
}
log.Error("NewIssue: error attempting to insert the new issue; will retry. Original error: %v", err)
idx, err := GetNextResourceIndex("issue_index", repo.ID)
if err != nil {
return fmt.Errorf("generate issue index failed: %v", err)
}
return fmt.Errorf("NewIssue: too many errors attempting to insert the new issue. Last error was: %v", err)
}
func newIssueAttempt(repo *Repository, issue *Issue, labelIDs []int64, uuids []string) (err error) {
issue.Index = idx
sess := x.NewSession()
defer sess.Close()
if err = sess.Begin(); err != nil {