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|
package repository
import (
"crypto/sha1"
"fmt"
"strings"
"github.com/MichaelMure/git-bug/util/lamport"
)
var _ ClockedRepo = &mockRepoForTest{}
var _ TestedRepo = &mockRepoForTest{}
// mockRepoForTest defines an instance of Repo that can be used for testing.
type mockRepoForTest struct {
config *MemConfig
globalConfig *MemConfig
blobs map[Hash][]byte
trees map[Hash]string
commits map[Hash]commit
refs map[string]Hash
clocks map[string]lamport.Clock
}
type commit struct {
treeHash Hash
parent Hash
}
func NewMockRepoForTest() *mockRepoForTest {
return &mockRepoForTest{
config: NewMemConfig(),
globalConfig: NewMemConfig(),
blobs: make(map[Hash][]byte),
trees: make(map[Hash]string),
commits: make(map[Hash]commit),
refs: make(map[string]Hash),
clocks: make(map[string]lamport.Clock),
}
}
// LocalConfig give access to the repository scoped configuration
func (r *mockRepoForTest) LocalConfig() Config {
return r.config
}
// GlobalConfig give access to the git global configuration
func (r *mockRepoForTest) GlobalConfig() Config {
return r.globalConfig
}
// 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
}
// GetRemotes returns the configured remotes repositories.
func (r *mockRepoForTest) GetRemotes() (map[string]string, error) {
return map[string]string{
"origin": "git://github.com/MichaelMure/git-bug",
}, 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) (Hash, error) {
rawHash := sha1.Sum(data)
hash := Hash(fmt.Sprintf("%x", rawHash))
r.blobs[hash] = data
return hash, nil
}
func (r *mockRepoForTest) ReadData(hash 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) (Hash, error) {
buffer := prepareTreeEntries(entries)
rawHash := sha1.Sum(buffer.Bytes())
hash := Hash(fmt.Sprintf("%x", rawHash))
r.trees[hash] = buffer.String()
return hash, nil
}
func (r *mockRepoForTest) StoreCommit(treeHash Hash) (Hash, error) {
rawHash := sha1.Sum([]byte(treeHash))
hash := Hash(fmt.Sprintf("%x", rawHash))
r.commits[hash] = commit{
treeHash: treeHash,
}
return hash, nil
}
func (r *mockRepoForTest) StoreCommitWithParent(treeHash Hash, parent Hash) (Hash, error) {
rawHash := sha1.Sum([]byte(treeHash + parent))
hash := Hash(fmt.Sprintf("%x", rawHash))
r.commits[hash] = commit{
treeHash: treeHash,
parent: parent,
}
return hash, nil
}
func (r *mockRepoForTest) UpdateRef(ref string, hash Hash) error {
r.refs[ref] = hash
return nil
}
func (r *mockRepoForTest) RemoveRef(ref string) error {
delete(r.refs, ref)
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) {
var keys []string
for k := range r.refs {
if strings.HasPrefix(k, refspec) {
keys = append(keys, k)
}
}
return keys, nil
}
func (r *mockRepoForTest) ListCommits(ref string) ([]Hash, error) {
var hashes []Hash
hash := r.refs[ref]
for {
commit, ok := r.commits[hash]
if !ok {
break
}
hashes = append([]Hash{hash}, hashes...)
hash = commit.parent
}
return hashes, nil
}
func (r *mockRepoForTest) ReadTree(hash 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 Hash, hash2 Hash) (Hash, error) {
ancestor1 := []Hash{hash1}
for hash1 != "" {
c, ok := r.commits[hash1]
if !ok {
return "", fmt.Errorf("unknown commit %v", hash1)
}
ancestor1 = append(ancestor1, c.parent)
hash1 = c.parent
}
for {
for _, ancestor := range ancestor1 {
if ancestor == hash2 {
return ancestor, nil
}
}
c, ok := r.commits[hash2]
if !ok {
return "", fmt.Errorf("unknown commit %v", hash1)
}
if c.parent == "" {
return "", fmt.Errorf("no ancestor found")
}
hash2 = c.parent
}
}
func (r *mockRepoForTest) GetTreeHash(commit Hash) (Hash, error) {
c, ok := r.commits[commit]
if !ok {
return "", fmt.Errorf("unknown commit")
}
return c.treeHash, nil
}
func (r *mockRepoForTest) GetOrCreateClock(name string) (lamport.Clock, error) {
if c, ok := r.clocks[name]; ok {
return c, nil
}
c := lamport.NewMemClock()
r.clocks[name] = c
return c, nil
}
func (r *mockRepoForTest) AddRemote(name string, url string) error {
panic("implement me")
}
|
