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Fix generate index failure possibility on postgres (#21998)

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@wxiaoguang Please review

Co-authored-by: silverwind <me@silverwind.io>
This commit is contained in:
Lunny Xiao
2022-12-02 11:15:36 +08:00
committed by GitHub
parent 64973cf18f
commit f7ade6de7c
3 changed files with 40 additions and 2 deletions
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18
models/git/commit_status.go
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@@ -9,6 +9,7 @@ import (
"errors"
"fmt"
"net/url"
"strconv"
"strings"
"time"
@@ -49,8 +50,25 @@ func init() {
db.RegisterModel(new(CommitStatusIndex))
}
func postgresGetCommitStatusIndex(ctx context.Context, repoID int64, sha string) (int64, error) {
res, err := db.GetEngine(ctx).Query("INSERT INTO `commit_status_index` (repo_id, sha, max_index) "+
"VALUES (?,?,1) ON CONFLICT (repo_id, sha) DO UPDATE SET max_index = `commit_status_index`.max_index+1 RETURNING max_index",
repoID, sha)
if err != nil {
return 0, err
}
if len(res) == 0 {
return 0, db.ErrGetResourceIndexFailed
}
return strconv.ParseInt(string(res[0]["max_index"]), 10, 64)
}
// GetNextCommitStatusIndex retried 3 times to generate a resource index
func GetNextCommitStatusIndex(ctx context.Context, repoID int64, sha string) (int64, error) {
if setting.Database.UsePostgreSQL {
return postgresGetCommitStatusIndex(ctx, repoID, sha)
}
e := db.GetEngine(ctx)
// try to update the max_index to next value, and acquire the write-lock for the record