Automerge supports deleting branch automatically after merging

Author: lunny

models/migrations/migrations.go

@@ -605,6 +605,8 @@ var migrations = []Migration{
 	NewMigration("Add Repository Licenses", v1_23.AddRepositoryLicenses),
 	// v306 -> v307
 	NewMigration("Add BlockAdminMergeOverride to ProtectedBranch", v1_23.AddBlockAdminMergeOverrideBranchProtection),
+	// v307 -> v308
+	NewMigration("Add DeleteBranchAfterMerge to AutoMerge", v1_23.AddDeleteBranchAfterMergeForAutoMerge),
 }
 
 // GetCurrentDBVersion returns the current db version

models/migrations/v1_23/v307.go

@@ -0,0 +1,29 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_23 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+type pullAutoMerge struct {
+	ID                     int64  `xorm:"pk autoincr"`
+	PullID                 int64  `xorm:"UNIQUE"`
+	DoerID                 int64  `xorm:"INDEX NOT NULL"`
+	MergeStyle             string `xorm:"varchar(30)"`
+	Message                string `xorm:"LONGTEXT"`
+	DeleteBranchAfterMerge bool
+	CreatedUnix            timeutil.TimeStamp `xorm:"created"`
+}
+
+// TableName return database table name for xorm
+func (pullAutoMerge) TableName() string {
+	return "pull_auto_merge"
+}
+
+func AddDeleteBranchAfterMergeForAutoMerge(x *xorm.Engine) error {
+	return x.Sync(new(pullAutoMerge))
+}

models/pull/automerge.go

@@ -15,13 +15,14 @@ import (
 
 // AutoMerge represents a pull request scheduled for merging when checks succeed
 type AutoMerge struct {
-	ID          int64                 `xorm:"pk autoincr"`
-	PullID      int64                 `xorm:"UNIQUE"`
-	DoerID      int64                 `xorm:"INDEX NOT NULL"`
-	Doer        *user_model.User      `xorm:"-"`
-	MergeStyle  repo_model.MergeStyle `xorm:"varchar(30)"`
-	Message     string                `xorm:"LONGTEXT"`
-	CreatedUnix timeutil.TimeStamp    `xorm:"created"`
+	ID                     int64                 `xorm:"pk autoincr"`
+	PullID                 int64                 `xorm:"UNIQUE"`
+	DoerID                 int64                 `xorm:"INDEX NOT NULL"`
+	Doer                   *user_model.User      `xorm:"-"`
+	MergeStyle             repo_model.MergeStyle `xorm:"varchar(30)"`
+	Message                string                `xorm:"LONGTEXT"`
+	DeleteBranchAfterMerge bool
+	CreatedUnix            timeutil.TimeStamp `xorm:"created"`
 }
 
 // TableName return database table name for xorm
@@ -49,7 +50,7 @@ func IsErrAlreadyScheduledToAutoMerge(err error) bool {
 }
 
 // ScheduleAutoMerge schedules a pull request to be merged when all checks succeed
-func ScheduleAutoMerge(ctx context.Context, doer *user_model.User, pullID int64, style repo_model.MergeStyle, message string) error {
+func ScheduleAutoMerge(ctx context.Context, doer *user_model.User, pullID int64, style repo_model.MergeStyle, message string, deleteBranchAfterMerge bool) error {
 	// Check if we already have a merge scheduled for that pull request
 	if exists, _, err := GetScheduledMergeByPullID(ctx, pullID); err != nil {
 		return err
@@ -58,10 +59,11 @@ func ScheduleAutoMerge(ctx context.Context, doer *user_model.User, pullID int64,
 	}
 
 	_, err := db.GetEngine(ctx).Insert(&AutoMerge{
-		DoerID:     doer.ID,
-		PullID:     pullID,
-		MergeStyle: style,
-		Message:    message,
+		DoerID:                 doer.ID,
+		PullID:                 pullID,
+		MergeStyle:             style,
+		Message:                message,
+		DeleteBranchAfterMerge: deleteBranchAfterMerge,
 	})
 	return err
 }

routers/api/v1/repo/pull.go

@@ -1000,7 +1000,7 @@ func MergePullRequest(ctx *context.APIContext) {
 	}
 
 	if form.MergeWhenChecksSucceed {
-		scheduled, err := automerge.ScheduleAutoMerge(ctx, ctx.Doer, pr, repo_model.MergeStyle(form.Do), message)
+		scheduled, err := automerge.ScheduleAutoMerge(ctx, ctx.Doer, pr, repo_model.MergeStyle(form.Do), message, form.DeleteBranchAfterMerge)
 		if err != nil {
 			if pull_model.IsErrAlreadyScheduledToAutoMerge(err) {
 				ctx.Error(http.StatusConflict, "ScheduleAutoMerge", err)

routers/web/repo/pull.go

@@ -1097,7 +1097,7 @@ func MergePullRequest(ctx *context.Context) {
 		// delete all scheduled auto merges
 		_ = pull_model.DeleteScheduledAutoMerge(ctx, pr.ID)
 		// schedule auto merge
-		scheduled, err := automerge.ScheduleAutoMerge(ctx, ctx.Doer, pr, repo_model.MergeStyle(form.Do), message)
+		scheduled, err := automerge.ScheduleAutoMerge(ctx, ctx.Doer, pr, repo_model.MergeStyle(form.Do), message, form.DeleteBranchAfterMerge)
 		if err != nil {
 			ctx.ServerError("ScheduleAutoMerge", err)
 			return

services/automerge/automerge.go

@@ -63,9 +63,9 @@ func addToQueue(pr *issues_model.PullRequest, sha string) {
 }
 
 // ScheduleAutoMerge if schedule is false and no error, pull can be merged directly
-func ScheduleAutoMerge(ctx context.Context, doer *user_model.User, pull *issues_model.PullRequest, style repo_model.MergeStyle, message string) (scheduled bool, err error) {
+func ScheduleAutoMerge(ctx context.Context, doer *user_model.User, pull *issues_model.PullRequest, style repo_model.MergeStyle, message string, deleteBranchAfterMerge bool) (scheduled bool, err error) {
 	err = db.WithTx(ctx, func(ctx context.Context) error {
-		if err := pull_model.ScheduleAutoMerge(ctx, doer, pull.ID, style, message); err != nil {
+		if err := pull_model.ScheduleAutoMerge(ctx, doer, pull.ID, style, message, deleteBranchAfterMerge); err != nil {
 			return err
 		}
 		scheduled = true

web_src/js/components/PullRequestMergeForm.vue

@@ -130,7 +130,7 @@ export default {
         {{ mergeForm.textCancel }}
       </button>
 
-      <div class="ui checkbox tw-ml-1" v-if="mergeForm.isPullBranchDeletable && !autoMergeWhenSucceed">
+      <div class="ui checkbox tw-ml-1" v-if="mergeForm.isPullBranchDeletable">
         <input name="delete_branch_after_merge" type="checkbox" v-model="deleteBranchAfterMerge" id="delete-branch-after-merge">
         <label for="delete-branch-after-merge">{{ mergeForm.textDeleteBranch }}</label>
       </div>