Split migrations folder (#21549)

There are too many files in `models/migrations` folder so that I split
them into sub folders.

models/migrations/v1_12/v130.go

@@ -0,0 +1,112 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package v1_12 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/json"
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/xorm"
+)
+
+func ExpandWebhooks(x *xorm.Engine) error {
+	type HookEvents struct {
+		Create               bool `json:"create"`
+		Delete               bool `json:"delete"`
+		Fork                 bool `json:"fork"`
+		Issues               bool `json:"issues"`
+		IssueAssign          bool `json:"issue_assign"`
+		IssueLabel           bool `json:"issue_label"`
+		IssueMilestone       bool `json:"issue_milestone"`
+		IssueComment         bool `json:"issue_comment"`
+		Push                 bool `json:"push"`
+		PullRequest          bool `json:"pull_request"`
+		PullRequestAssign    bool `json:"pull_request_assign"`
+		PullRequestLabel     bool `json:"pull_request_label"`
+		PullRequestMilestone bool `json:"pull_request_milestone"`
+		PullRequestComment   bool `json:"pull_request_comment"`
+		PullRequestReview    bool `json:"pull_request_review"`
+		PullRequestSync      bool `json:"pull_request_sync"`
+		Repository           bool `json:"repository"`
+		Release              bool `json:"release"`
+	}
+
+	type HookEvent struct {
+		PushOnly       bool   `json:"push_only"`
+		SendEverything bool   `json:"send_everything"`
+		ChooseEvents   bool   `json:"choose_events"`
+		BranchFilter   string `json:"branch_filter"`
+
+		HookEvents `json:"events"`
+	}
+
+	type Webhook struct {
+		ID     int64
+		Events string
+	}
+
+	var bytes []byte
+	var last int
+	batchSize := setting.Database.IterateBufferSize
+	sess := x.NewSession()
+	defer sess.Close()
+	for {
+		if err := sess.Begin(); err != nil {
+			return err
+		}
+		results := make([]Webhook, 0, batchSize)
+		err := x.OrderBy("id").
+			Limit(batchSize, last).
+			Find(&results)
+		if err != nil {
+			return err
+		}
+		if len(results) == 0 {
+			break
+		}
+		last += len(results)
+
+		for _, res := range results {
+			var events HookEvent
+			if err = json.Unmarshal([]byte(res.Events), &events); err != nil {
+				return err
+			}
+
+			if !events.ChooseEvents {
+				continue
+			}
+
+			if events.Issues {
+				events.IssueAssign = true
+				events.IssueLabel = true
+				events.IssueMilestone = true
+				events.IssueComment = true
+			}
+
+			if events.PullRequest {
+				events.PullRequestAssign = true
+				events.PullRequestLabel = true
+				events.PullRequestMilestone = true
+				events.PullRequestComment = true
+				events.PullRequestReview = true
+				events.PullRequestSync = true
+			}
+
+			if bytes, err = json.Marshal(&events); err != nil {
+				return err
+			}
+
+			_, err = sess.Exec("UPDATE webhook SET events = ? WHERE id = ?", string(bytes), res.ID)
+			if err != nil {
+				return err
+			}
+		}
+
+		if err := sess.Commit(); err != nil {
+			return err
+		}
+	}
+	return nil
+}