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forgejo/tests/integration/repo_mergecommit_revert_test.go

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// Copyright 2024 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
Fix reverting a merge commit failing (#28794) Fixes #22236 --- Error occurring currently while trying to revert commit using read-tree -m approach: > 2022/12/26 16:04:43 ...rvices/pull/patch.go:240:AttemptThreeWayMerge() [E] [63a9c61a] Unable to run read-tree -m! Error: exit status 128 - fatal: this operation must be run in a work tree > - fatal: this operation must be run in a work tree We need to clone a non-bare repository for `git read-tree -m` to work. https://github.com/go-gitea/gitea/commit/bb371aee6ecf5e570cdf7b5f7f0d6f47a607a325 adds support to create a non-bare cloned temporary upload repository. After cloning a non-bare temporary upload repository, we [set default index](https://github.com/go-gitea/gitea/blob/main/services/repository/files/cherry_pick.go#L37) (`git read-tree HEAD`). This operation ends up resetting the git index file (see investigation details below), due to which, we need to call `git update-index --refresh` afterward. Here's the diff of the index file before and after we execute SetDefaultIndex: https://www.diffchecker.com/hyOP3eJy/ Notice the **ctime**, **mtime** are set to 0 after SetDefaultIndex. You can reproduce the same behavior using these steps: ```bash $ git clone https://try.gitea.io/me-heer/test.git -s -b main $ cd test $ git read-tree HEAD $ git read-tree -m 1f085d7ed8 1f085d7ed8 9933caed00 error: Entry '1' not uptodate. Cannot merge. ``` After which, we can fix like this: ``` $ git update-index --refresh $ git read-tree -m 1f085d7ed8 1f085d7ed8 9933caed00 ```
2024-01-16 16:06:51 +01:00
package integration
import (
"net/http"
"testing"
"code.gitea.io/gitea/tests"
"github.com/stretchr/testify/assert"
)
func TestRepoMergeCommitRevert(t *testing.T) {
defer tests.PrepareTestEnv(t)()
session := loginUser(t, "user2")
req := NewRequest(t, "GET", "/user2/test_commit_revert/_cherrypick/deebcbc752e540bab4ce3ee713d3fc8fdc35b2f7/main?ref=main&refType=branch&cherry-pick-type=revert")
resp := session.MakeRequest(t, req, http.StatusOK)
htmlDoc := NewHTMLParser(t, resp.Body)
req = NewRequestWithValues(t, "POST", "/user2/test_commit_revert/_cherrypick/deebcbc752e540bab4ce3ee713d3fc8fdc35b2f7/main", map[string]string{
"_csrf": htmlDoc.GetCSRF(),
"last_commit": "deebcbc752e540bab4ce3ee713d3fc8fdc35b2f7",
"page_has_posted": "true",
"revert": "true",
"commit_summary": "reverting test commit",
"commit_message": "test message",
"commit_choice": "direct",
"new_branch_name": "test-revert-branch-1",
"commit_mail_id": "-1",
Fix reverting a merge commit failing (#28794) Fixes #22236 --- Error occurring currently while trying to revert commit using read-tree -m approach: > 2022/12/26 16:04:43 ...rvices/pull/patch.go:240:AttemptThreeWayMerge() [E] [63a9c61a] Unable to run read-tree -m! Error: exit status 128 - fatal: this operation must be run in a work tree > - fatal: this operation must be run in a work tree We need to clone a non-bare repository for `git read-tree -m` to work. https://github.com/go-gitea/gitea/commit/bb371aee6ecf5e570cdf7b5f7f0d6f47a607a325 adds support to create a non-bare cloned temporary upload repository. After cloning a non-bare temporary upload repository, we [set default index](https://github.com/go-gitea/gitea/blob/main/services/repository/files/cherry_pick.go#L37) (`git read-tree HEAD`). This operation ends up resetting the git index file (see investigation details below), due to which, we need to call `git update-index --refresh` afterward. Here's the diff of the index file before and after we execute SetDefaultIndex: https://www.diffchecker.com/hyOP3eJy/ Notice the **ctime**, **mtime** are set to 0 after SetDefaultIndex. You can reproduce the same behavior using these steps: ```bash $ git clone https://try.gitea.io/me-heer/test.git -s -b main $ cd test $ git read-tree HEAD $ git read-tree -m 1f085d7ed8 1f085d7ed8 9933caed00 error: Entry '1' not uptodate. Cannot merge. ``` After which, we can fix like this: ``` $ git update-index --refresh $ git read-tree -m 1f085d7ed8 1f085d7ed8 9933caed00 ```
2024-01-16 16:06:51 +01:00
})
resp = session.MakeRequest(t, req, http.StatusSeeOther)
// A successful revert redirects to the main branch
assert.EqualValues(t, "/user2/test_commit_revert/src/branch/main", resp.Header().Get("Location"))
}