package repository import ( "crypto/sha1" "fmt" "github.com/MichaelMure/git-bug/util" ) // mockRepoForTest defines an instance of Repo that can be used for testing. type mockRepoForTest struct { blobs map[util.Hash][]byte trees map[util.Hash]string commits map[util.Hash]commit refs map[string]util.Hash createClock util.LamportClock editClock util.LamportClock } type commit struct { treeHash util.Hash parent util.Hash } func NewMockRepoForTest() Repo { return &mockRepoForTest{ blobs: make(map[util.Hash][]byte), trees: make(map[util.Hash]string), commits: make(map[util.Hash]commit), refs: make(map[string]util.Hash), createClock: util.NewLamportClock(), editClock: util.NewLamportClock(), } } // GetPath returns the path to the repo. func (r *mockRepoForTest) GetPath() string { return "~/mockRepo/" } func (r *mockRepoForTest) GetUserName() (string, error) { return "René Descartes", nil } // GetUserEmail returns the email address that the user has used to configure git. func (r *mockRepoForTest) GetUserEmail() (string, error) { return "user@example.com", nil } // GetCoreEditor returns the name of the editor that the user has used to configure git. func (r *mockRepoForTest) GetCoreEditor() (string, error) { return "vi", nil } // PushRefs push git refs to a remote func (r *mockRepoForTest) PushRefs(remote string, refSpec string) (string, error) { return "", nil } func (r *mockRepoForTest) FetchRefs(remote string, refSpec string) (string, error) { return "", nil } func (r *mockRepoForTest) StoreData(data []byte) (util.Hash, error) { rawHash := sha1.Sum(data) hash := util.Hash(fmt.Sprintf("%x", rawHash)) r.blobs[hash] = data return hash, nil } func (r *mockRepoForTest) ReadData(hash util.Hash) ([]byte, error) { data, ok := r.blobs[hash] if !ok { return nil, fmt.Errorf("unknown hash") } return data, nil } func (r *mockRepoForTest) StoreTree(entries []TreeEntry) (util.Hash, error) { buffer := prepareTreeEntries(entries) rawHash := sha1.Sum(buffer.Bytes()) hash := util.Hash(fmt.Sprintf("%x", rawHash)) r.trees[hash] = buffer.String() return hash, nil } func (r *mockRepoForTest) StoreCommit(treeHash util.Hash) (util.Hash, error) { rawHash := sha1.Sum([]byte(treeHash)) hash := util.Hash(fmt.Sprintf("%x", rawHash)) r.commits[hash] = commit{ treeHash: treeHash, } return hash, nil } func (r *mockRepoForTest) StoreCommitWithParent(treeHash util.Hash, parent util.Hash) (util.Hash, error) { rawHash := sha1.Sum([]byte(treeHash + parent)) hash := util.Hash(fmt.Sprintf("%x", rawHash)) r.commits[hash] = commit{ treeHash: treeHash, parent: parent, } return hash, nil } func (r *mockRepoForTest) UpdateRef(ref string, hash util.Hash) error { r.refs[ref] = hash return nil } func (r *mockRepoForTest) RefExist(ref string) (bool, error) { _, exist := r.refs[ref] return exist, nil } func (r *mockRepoForTest) CopyRef(source string, dest string) error { hash, exist := r.refs[source] if !exist { return fmt.Errorf("Unknown ref") } r.refs[dest] = hash return nil } func (r *mockRepoForTest) ListRefs(refspec string) ([]string, error) { keys := make([]string, len(r.refs)) i := 0 for k := range r.refs { keys[i] = k i++ } return keys, nil } func (r *mockRepoForTest) ListCommits(ref string) ([]util.Hash, error) { var hashes []util.Hash hash := r.refs[ref] for { commit, ok := r.commits[hash] if !ok { break } hashes = append([]util.Hash{hash}, hashes...) hash = commit.parent } return hashes, nil } func (r *mockRepoForTest) ListEntries(hash util.Hash) ([]TreeEntry, error) { var data string data, ok := r.trees[hash] if !ok { // Git will understand a commit hash to reach a tree commit, ok := r.commits[hash] if !ok { return nil, fmt.Errorf("unknown hash") } data, ok = r.trees[commit.treeHash] if !ok { return nil, fmt.Errorf("unknown hash") } } return readTreeEntries(data) } func (r *mockRepoForTest) FindCommonAncestor(hash1 util.Hash, hash2 util.Hash) (util.Hash, error) { panic("implement me") } func (r *mockRepoForTest) GetTreeHash(commit util.Hash) (util.Hash, error) { panic("implement me") } func (r *mockRepoForTest) LoadClocks() error { return nil } func (r *mockRepoForTest) WriteClocks() error { return nil } func (r *mockRepoForTest) CreateTimeIncrement() (util.LamportTime, error) { return r.createClock.Increment(), nil } func (r *mockRepoForTest) EditTimeIncrement() (util.LamportTime, error) { return r.editClock.Increment(), nil } func (r *mockRepoForTest) CreateWitness(time util.LamportTime) error { r.createClock.Witness(time) return nil } func (r *mockRepoForTest) EditWitness(time util.LamportTime) error { r.editClock.Witness(time) return nil }