aboutsummaryrefslogblamecommitdiffstats
path: root/repository/mock_repo.go
blob: 89d0f395a0816611380df12d5ed8dee1a920b2cb (plain) (tree)
1
2
3
4
5
6
7
8
9
10


                  

                     
 

                                                     

 

                                      
                                                                            
                             

                               





                                        


                    

                         
 
 
                                            
                                







                                                        
         

 
                                                                 
                                                
                       

 
                                                           
                                                 
                             

 
                                        


                                            
 

                                                         


                                                                                  


                                                          

                                                                                        


                                                           
 






                                                                   
                                     

                                                                                   
 
 

                                                                                    

 
                                                                    
                                 
                                                    



                            
                                                                   


                                 
                                                      


                        

 
                                                                            

                                             
                                                    


                                       

 
                                                                            
                                             
                                                    



                                   

 
                                                                                                       
                                                      
                                                    




                                   

 
                                                                      
                          

                  
 








                                                                     
                                                





                           











                                                                      

                                                                       









                                             
                                                            





                                    
                                                                           








                                                                    
                                                              




                                                   
                                                              




                                    
 
                                                                                                


                             
                                                                          

                             








                                               



                                                     
                                                                       


                                             



                                                   
                                                                     


                                           
                                                                  



                                   
                                                                


                                 
package repository

import (
	"crypto/sha1"
	"fmt"

	"github.com/MichaelMure/git-bug/util/git"
	"github.com/MichaelMure/git-bug/util/lamport"
)

var _ ClockedRepo = &mockRepoForTest{}

// mockRepoForTest defines an instance of Repo that can be used for testing.
type mockRepoForTest struct {
	config       *MemConfig
	globalConfig *MemConfig
	blobs        map[git.Hash][]byte
	trees        map[git.Hash]string
	commits      map[git.Hash]commit
	refs         map[string]git.Hash
	createClock  lamport.Clock
	editClock    lamport.Clock
}

type commit struct {
	treeHash git.Hash
	parent   git.Hash
}

func NewMockRepoForTest() *mockRepoForTest {
	return &mockRepoForTest{
		config:       NewMemConfig(),
		globalConfig: NewMemConfig(),
		blobs:        make(map[git.Hash][]byte),
		trees:        make(map[git.Hash]string),
		commits:      make(map[git.Hash]commit),
		refs:         make(map[string]git.Hash),
		createClock:  lamport.NewClock(),
		editClock:    lamport.NewClock(),
	}
}

// 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) (git.Hash, error) {
	rawHash := sha1.Sum(data)
	hash := git.Hash(fmt.Sprintf("%x", rawHash))
	r.blobs[hash] = data
	return hash, nil
}

func (r *mockRepoForTest) ReadData(hash git.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) (git.Hash, error) {
	buffer := prepareTreeEntries(entries)
	rawHash := sha1.Sum(buffer.Bytes())
	hash := git.Hash(fmt.Sprintf("%x", rawHash))
	r.trees[hash] = buffer.String()

	return hash, nil
}

func (r *mockRepoForTest) StoreCommit(treeHash git.Hash) (git.Hash, error) {
	rawHash := sha1.Sum([]byte(treeHash))
	hash := git.Hash(fmt.Sprintf("%x", rawHash))
	r.commits[hash] = commit{
		treeHash: treeHash,
	}
	return hash, nil
}

func (r *mockRepoForTest) StoreCommitWithParent(treeHash git.Hash, parent git.Hash) (git.Hash, error) {
	rawHash := sha1.Sum([]byte(treeHash + parent))
	hash := git.Hash(fmt.Sprintf("%x", rawHash))
	r.commits[hash] = commit{
		treeHash: treeHash,
		parent:   parent,
	}
	return hash, nil
}

func (r *mockRepoForTest) UpdateRef(ref string, hash git.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) ([]git.Hash, error) {
	var hashes []git.Hash

	hash := r.refs[ref]

	for {
		commit, ok := r.commits[hash]

		if !ok {
			break
		}

		hashes = append([]git.Hash{hash}, hashes...)
		hash = commit.parent
	}

	return hashes, nil
}

func (r *mockRepoForTest) ListEntries(hash git.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 git.Hash, hash2 git.Hash) (git.Hash, error) {
	panic("implement me")
}

func (r *mockRepoForTest) GetTreeHash(commit git.Hash) (git.Hash, error) {
	panic("implement me")
}

func (r *mockRepoForTest) LoadClocks() error {
	return nil
}

func (r *mockRepoForTest) WriteClocks() error {
	return nil
}

func (r *mockRepoForTest) CreateTime() lamport.Time {
	return r.createClock.Time()
}

func (r *mockRepoForTest) CreateTimeIncrement() (lamport.Time, error) {
	return r.createClock.Increment(), nil
}

func (r *mockRepoForTest) EditTime() lamport.Time {
	return r.editClock.Time()
}

func (r *mockRepoForTest) EditTimeIncrement() (lamport.Time, error) {
	return r.editClock.Increment(), nil
}

func (r *mockRepoForTest) WitnessCreate(time lamport.Time) error {
	r.createClock.Witness(time)
	return nil
}

func (r *mockRepoForTest) WitnessEdit(time lamport.Time) error {
	r.editClock.Witness(time)
	return nil
}