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Prevent panic on merge to PR (#10403) 

If you attempt to merge to a branch which on a PR there will be a nil pointer error in the pull request checker.

This panic is uncaught and will bring down the gitea server.

This PR adds protection to prevent this.
This commit is contained in:
zeripath 2020-02-21 18:18:13 +00:00 committed by GitHub
parent cfcd8e4146
commit cadec9bc22
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2 changed files with 19 additions and 0 deletions
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11
integrations/git_test.go
View File

@ -351,6 +351,17 @@ func doBranchProtectPRMerge(baseCtx *APITestContext, dstPath string) func(t *tes
pr, err = doAPICreatePullRequest(ctx, baseCtx.Username, baseCtx.Reponame, "protected", "unprotected")(t)
assert.NoError(t, err)
})
t.Run("GenerateCommit", func(t *testing.T) {
_, err := generateCommitWithNewData(littleSize, dstPath, "user2@example.com", "User Two", "branch-data-file-")
assert.NoError(t, err)
})
t.Run("PushToUnprotectedBranch", doGitPushTestRepository(dstPath, "origin", "protected:unprotected-2"))
var pr2 api.PullRequest
t.Run("CreatePullRequest", func(t *testing.T) {
pr2, err = doAPICreatePullRequest(ctx, baseCtx.Username, baseCtx.Reponame, "unprotected", "unprotected-2")(t)
assert.NoError(t, err)
})
t.Run("MergePR2", doAPIMergePullRequest(ctx, baseCtx.Username, baseCtx.Reponame, pr2.Index))
t.Run("MergePR", doAPIMergePullRequest(ctx, baseCtx.Username, baseCtx.Reponame, pr.Index))
t.Run("PullProtected", doGitPull(dstPath, "origin", "protected"))
t.Run("ProtectProtectedBranchWhitelist", doProtectBranch(ctx, "protected", baseCtx.Username))

8
services/pull/pull.go
View File

@ -324,6 +324,10 @@ func PushToBaseRepo(pr *models.PullRequest) (err error) {
}
}()
if err := pr.LoadHeadRepo(); err != nil {
log.Error("Unable to load head repository for PR[%d] Error: %v", pr.ID, err)
return err
}
headRepoPath := pr.HeadRepo.RepoPath()
if err := git.Clone(headRepoPath, tmpBasePath, git.CloneRepoOptions{
@ -340,6 +344,10 @@ func PushToBaseRepo(pr *models.PullRequest) (err error) {
return fmt.Errorf("OpenRepository: %v", err)
}
if err := pr.LoadBaseRepo(); err != nil {
log.Error("Unable to load base repository for PR[%d] Error: %v", pr.ID, err)
return err
}
if err := gitRepo.AddRemote("base", pr.BaseRepo.RepoPath(), false); err != nil {
return fmt.Errorf("tmpGitRepo.AddRemote: %v", err)
}