Auto merge pull requests when all checks succeeded via API (#9307)

* Fix indention

Signed-off-by: kolaente <k@knt.li>

* Add option to merge a pr right now without waiting for the checks to succeed

Signed-off-by: kolaente <k@knt.li>

* Fix lint

Signed-off-by: kolaente <k@knt.li>

* Add scheduled pr merge to tables used for testing

Signed-off-by: kolaente <k@knt.li>

* Add status param to make GetPullRequestByHeadBranch reusable

Signed-off-by: kolaente <k@knt.li>

* Move "Merge now" to a seperate button to make the ui clearer

Signed-off-by: kolaente <k@knt.li>

* Update models/scheduled_pull_request_merge.go

Co-authored-by: 赵智超 <1012112796@qq.com>

* Update web_src/js/index.js

Co-authored-by: 赵智超 <1012112796@qq.com>

* Update web_src/js/index.js

Co-authored-by: 赵智超 <1012112796@qq.com>

* Re-add migration after merge

* Fix frontend lint

* Fix version compare

* Add vendored dependencies

* Add basic tets

* Make sure the api route is capable of scheduling PRs for merging

* Fix comparing version

* make vendor

* adopt refactor

* apply suggestion: User -> Doer

* init var once

* Fix Test

* Update templates/repo/issue/view_content/comments.tmpl

* adopt

* nits

* next

* code format

* lint

* use same name schema; rm CreateUnScheduledPRToAutoMergeComment

* API: can not create schedule twice

* Add TestGetBranchNamesForSha

* nits

* new go routine for each pull to merge

* Update models/pull.go

Co-authored-by: a1012112796 <1012112796@qq.com>

* Update models/scheduled_pull_request_merge.go

Co-authored-by: a1012112796 <1012112796@qq.com>

* fix & add renaming sugestions

* Update services/automerge/pull_auto_merge.go

Co-authored-by: a1012112796 <1012112796@qq.com>

* fix conflict relicts

* apply latest refactors

* fix: migration after merge

* Update models/error.go

Co-authored-by: delvh <dev.lh@web.de>

* Update options/locale/locale_en-US.ini

Co-authored-by: delvh <dev.lh@web.de>

* Update options/locale/locale_en-US.ini

Co-authored-by: delvh <dev.lh@web.de>

* adapt latest refactors

* fix test

* use more context

* skip potential edgecases

* document func usage

* GetBranchNamesForSha() -> GetRefsBySha()

* start refactoring

* ajust to new changes

* nit

* docu nit

* the great check move

* move checks for branchprotection into own package

* resolve todo now ...

* move & rename

* unexport if posible

* fix

* check if merge is allowed before merge on scheduled pull

* debugg

* wording

* improve SetDefaults & nits

* NotAllowedToMerge -> DisallowedToMerge

* fix test

* merge files

* use package "errors"

* merge files

* add string names

* other implementation for gogit

* adapt refactor

* more context for models/pull.go

* GetUserRepoPermission use context

* more ctx

* use context for loading pull head/base-repo

* more ctx

* more ctx

* models.LoadIssueCtx()

* models.LoadIssueCtx()

* Handle pull_service.Merge in one DB transaction

* add TODOs

* next

* next

* next

* more ctx

* more ctx

* Start refactoring structure of old pull code ...

* move code into new packages

* shorter names ... and finish **restructure**

* Update models/branches.go

Co-authored-by: zeripath <art27@cantab.net>

* finish UpdateProtectBranch

* more and fix

* update datum

* template: use "svg" helper

* rename prQueue 2 prPatchCheckerQueue

* handle automerge in queue

* lock pull on git&db actions ...

* lock pull on git&db actions ...

* add TODO notes

* the regex

* transaction in tests

* GetRepositoryByIDCtx

* shorter table name and lint fix

* close transaction bevore notify

* Update models/pull.go

* next

* CheckPullMergable check all branch protections!

* Update routers/web/repo/pull.go

* CheckPullMergable check all branch protections!

* Revert "PullService lock via pullID (#19520)" (for now...)

This reverts commit 6cde7c9159a5ea75a10356feb7b8c7ad4c434a9a.

* Update services/pull/check.go

* Use for a repo action one database transaction

* Apply suggestions from code review

* Apply suggestions from code review

Co-authored-by: delvh <dev.lh@web.de>

* Update services/issue/status.go

Co-authored-by: delvh <dev.lh@web.de>

* Update services/issue/status.go

Co-authored-by: delvh <dev.lh@web.de>

* use db.WithTx()

* gofmt

* make pr.GetDefaultMergeMessage() context aware

* make MergePullRequestForm.SetDefaults context aware

* use db.WithTx()

* pull.SetMerged only with context

* fix deadlock in `test-sqlite\#TestAPIBranchProtection`

* dont forget templates

* db.WithTx allow to set the parentCtx

* handle db transaction in service packages but not router

* issue_service.ChangeStatus just had caused another deadlock :/
it has to do something with how notification package is handled

* if we merge a pull in one database transaktion, we get a lock, because merge infoce internal api that cant handle open db sessions to the same repo

* ajust to current master

* Apply suggestions from code review

Co-authored-by: delvh <dev.lh@web.de>

* dont open db transaction in router

* make generate-swagger

* one _success less

* wording nit

* rm

* adapt

* remove not needed test files

* rm less diff & use attr in JS

* ...

* Update services/repository/files/commit.go

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

* ajust db schema for PullAutoMerge

* skip broken pull refs

* more context in error messages

* remove webUI part for another pull

* remove more WebUI only parts

* API: add CancleAutoMergePR

* Apply suggestions from code review

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

* fix lint

* Apply suggestions from code review

* cancle -> cancel

Co-authored-by: delvh <dev.lh@web.de>

* change queue identifyer

* fix swagger

* prevent nil issue

* fix and dont drop error

* as per @zeripath

* Update integrations/git_test.go

Co-authored-by: delvh <dev.lh@web.de>

* Update integrations/git_test.go

Co-authored-by: delvh <dev.lh@web.de>

* more declarative integration tests (dedup code)

* use assert.False/True helper

Co-authored-by: 赵智超 <1012112796@qq.com>
Co-authored-by: 6543 <6543@obermui.de>
Co-authored-by: delvh <dev.lh@web.de>
Co-authored-by: zeripath <art27@cantab.net>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

modules/git/tests/repos/repo5_pulls/HEAD

@@ -0,0 +1 @@
+ref: refs/heads/master

modules/git/tests/repos/repo5_pulls/config

@@ -0,0 +1,6 @@
+[core]
+	repositoryformatversion = 0
+	filemode = true
+	bare = true
+[receive]
+	advertisePushOptions = true

modules/git/tests/repos/repo5_pulls/description

@@ -0,0 +1 @@
+Unnamed repository; edit this file 'description' to name the repository.

modules/git/tests/repos/repo5_pulls/info/exclude

@@ -0,0 +1,6 @@
+# git ls-files --others --exclude-from=.git/info/exclude
+# Lines that start with '#' are comments.
+# For a project mostly in C, the following would be a good set of
+# exclude patterns (uncomment them if you want to use them):
+# *.[oa]
+# *~

modules/git/tests/repos/repo5_pulls/objects/58/a4bcc53ac13e7ff76127e0fb518b5262bf09af

@@ -0,0 +1 @@
+x
%<25>НnУ0<0C>;ы)И0H<30>њ1	P<>]кє
(<28>F2ИTх§kЗ7|Иwu]<5D>{Oєв<D194><19>HЈВpЎ<70>8Г$A<>1І"\ЂЊaТRfї<66>fп4л<0B>й#ZL:JЪ\-<2D>Ђ#fO2sАЂN<D082>§Ж6шігЏгчNЛ;яvМХ#њш	3p<>ЋзК5<D09A><35><EFBFBD>pкy^<5E>ЕхyдўL)xклМs_<0F>n№1]ооЇaб_<D0B1>)@X

modules/git/tests/repos/repo5_pulls/objects/bf/4dc0709be60f043821351ff4bb2b17e5cabbb2

@@ -0,0 +1,2 @@
+x
­ŹMNÄ0…Y÷Öl„ś'Ť„€ ‰ťi%úŁ4ÜźÄ
Ř<=ů}~˛ó2MccÜM«" ˘ČhÖ¬zŽ±÷)q(<28>•CRIŠO¤¸tk¬27Č˝1=˛GrL&]ŘYťBFtÚ'&oŤ„?^¸/–u‰”´ŐčŃŃľ®‚*ÄL<C384>­ŘÝ›ŇĹŻ6,¶\ǵĹO©íöô
+ď˛5řؤžî#xjűěĺ<C49B>‡CžA9<41>VyB÷¨»üóc“˙iëޤ^RŤsŕ<Ĺmo>Ă8·Ž.kly¸¨îC©ič

modules/git/tests/repos/repo5_pulls/objects/d8/e0bbb45f200e67d9a784ce55bd90821af45ebd

@@ -0,0 +1,2 @@
+x
­ŽAJAE]÷)Š¬"‚VwWĎt E˛ÄŤz€NU5Ě$ôTö9<C3B6>¸ň&Ţ$'1Ń+¸y|ţ<>Ďçífł6=^XS…NpEĚ…"ÍRĚ1v>W–(Ň®•gD©ŢíJÓÁ@%W’PKZ
+Řc—2ŠźůšD2)ťr¬®ěímŰ`ä¶ŢYy×fÓÉĽčhđ:j›\Ţü)<29>Ű©»=ăúŚř."ů>ůW˙~6ýź5w<|>>Ü/źž—ÇĂ|
˘mp?<3F>
Xó

modules/git/tests/repos/repo5_pulls/objects/ed/8f4d2fa5b2420706580d191f5dd50c4e491f3f

@@ -0,0 +1,3 @@
+x
­ŽAJAE]÷)Š¬!V×ÌtMƒˆ"YâF=@uw5Ì$ô”ûD\yo’“hô
+nÞâ?ø¼¼ÝlÖÄxbMd ,ƒTŸ<54>˜C7f%äÈuÄ”¼PŒÜ3Jr;i:ÔŽJ,µ`”€5øP)úa¬Ì”µ”1Æž
+9y³—mƒ9·õÎäU›<EFBFBD>.nàIgƒçYÛâìâOÁ¥ýl×G,<2C>¸:ì=÷q€s$D—›MÿçÍö÷w·«‡ÇÕaÿ_ŸSÑ6¹o9X‚

modules/git/tests/repos/repo5_pulls/objects/info/packs

@@ -0,0 +1,2 @@
+P pack-81423f591973f5d9dab89cc45afa1c544448133e.pack
+

modules/git/tests/repos/repo5_pulls/packed-refs

@@ -0,0 +1,5 @@
+# pack-refs with: peeled fully-peeled sorted 
+c83380d7056593c51a699d12b9c00627bd5743e9 refs/heads/test-patch-1
+c83380d7056593c51a699d12b9c00627bd5743e9 refs/pull/1/head
+111cac04bd7d20301964e27a93698aabb5781b80 refs/pull/1/merge
+72866af952e98d02a73003501836074b286a78f6 refs/tags/v0.9.99

modules/git/tests/repos/repo5_pulls/refs/heads/master

@@ -0,0 +1 @@
+d8e0bbb45f200e67d9a784ce55bd90821af45ebd

modules/git/tests/repos/repo5_pulls/refs/heads/master-clone

@@ -0,0 +1 @@
+d8e0bbb45f200e67d9a784ce55bd90821af45ebd

modules/git/tests/repos/repo5_pulls/refs/heads/test-patch-1

@@ -0,0 +1 @@
+58a4bcc53ac13e7ff76127e0fb518b5262bf09af

modules/git/tests/repos/repo5_pulls/refs/pull/4/head

@@ -0,0 +1 @@
+58a4bcc53ac13e7ff76127e0fb518b5262bf09af