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Backport #28348 by @AdamMajer nogogit GetBranchNames() lists branches sorted in reverse commit date order. On the other hand the gogit implementation doesn't apply any ordering resulting in unpredictable behaviour. In my case, the unit tests requiring particular order fail repo_branch_test.go:24: Error Trace: ./gitea/modules/git/repo_branch_test.go:24 Error: elements differ extra elements in list A: ([]interface {}) (len=1) { (string) (len=6) "master" } extra elements in list B: ([]interface {}) (len=1) { (string) (len=7) "branch1" } listA: ([]string) (len=2) { (string) (len=6) "master", (string) (len=7) "branch2" } listB: ([]string) (len=2) { (string) (len=7) "branch1", (string) (len=7) "branch2" } Test: TestRepository_GetBranches To fix this, we sort branches based on their commit date in gogit implementation. Fixes: #28318 Co-authored-by: Adam Majer <amajer@suse.de>
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1 changed files with 28 additions and 13 deletions
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@ -8,6 +8,7 @@ package git
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import (
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"context"
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"sort"
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"strings"
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"github.com/go-git/go-git/v5/plumbing"
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@ -52,32 +53,46 @@ func (repo *Repository) IsBranchExist(name string) bool {
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// GetBranches returns branches from the repository, skipping "skip" initial branches and
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// returning at most "limit" branches, or all branches if "limit" is 0.
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// Branches are returned with sort of `-commiterdate` as the nogogit
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// implementation. This requires full fetch, sort and then the
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// skip/limit applies later as gogit returns in undefined order.
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func (repo *Repository) GetBranchNames(skip, limit int) ([]string, int, error) {
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var branchNames []string
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type BranchData struct {
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name string
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committerDate int64
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}
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var branchData []BranchData
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branches, err := repo.gogitRepo.Branches()
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branchIter, err := repo.gogitRepo.Branches()
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if err != nil {
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return nil, 0, err
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}
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i := 0
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count := 0
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_ = branches.ForEach(func(branch *plumbing.Reference) error {
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count++
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if i < skip {
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i++
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return nil
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} else if limit != 0 && count > skip+limit {
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_ = branchIter.ForEach(func(branch *plumbing.Reference) error {
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obj, err := repo.gogitRepo.CommitObject(branch.Hash())
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if err != nil {
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// skip branch if can't find commit
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return nil
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}
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branchNames = append(branchNames, strings.TrimPrefix(branch.Name().String(), BranchPrefix))
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branchData = append(branchData, BranchData{strings.TrimPrefix(branch.Name().String(), BranchPrefix), obj.Committer.When.Unix()})
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return nil
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})
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// TODO: Sort?
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sort.Slice(branchData, func(i, j int) bool {
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return !(branchData[i].committerDate < branchData[j].committerDate)
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})
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return branchNames, count, nil
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var branchNames []string
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maxPos := len(branchData)
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if limit > 0 {
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maxPos = min(skip+limit, maxPos)
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}
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for i := skip; i < maxPos; i++ {
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branchNames = append(branchNames, branchData[i].name)
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}
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return branchNames, len(branchData), nil
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}
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// WalkReferences walks all the references from the repository
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