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Blob api #132

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Nov 11, 2018
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30 changes: 30 additions & 0 deletions repo_blob.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,30 @@
// Copyright 2018 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.

package git

func (repo *Repository) getBlob(id SHA1) (*Blob, error) {
if _, err := NewCommand("cat-file", "-p", id.String()).RunInDir(repo.Path); err != nil {
return nil, ErrNotExist{id.String(), ""}
}

return &Blob{
repo: repo,
TreeEntry: &TreeEntry{
ID: id,
ptree: &Tree{
repo: repo,
},
},
}, nil
}

// GetBlob finds the blob object in the repository.
func (repo *Repository) GetBlob(idStr string) (*Blob, error) {
id, err := NewIDFromString(idStr)
if err != nil {
return nil, err
}
return repo.getBlob(id)
}
66 changes: 66 additions & 0 deletions repo_blob_test.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,66 @@
// Copyright 2018 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.

package git

import (
"fmt"
"io/ioutil"
"path/filepath"
"testing"

"github.com/stretchr/testify/assert"
)

func TestRepository_GetBlob_Found(t *testing.T) {
repoPath := filepath.Join(testReposDir, "repo1_bare")
r, err := OpenRepository(repoPath)
assert.NoError(t, err)

testCases := []struct {
OID string
Data []byte
}{
{"e2129701f1a4d54dc44f03c93bca0a2aec7c5449", []byte("file1\n")},
{"6c493ff740f9380390d5c9ddef4af18697ac9375", []byte("file2\n")},
}

for _, testCase := range testCases {
blob, err := r.GetBlob(testCase.OID)
assert.NoError(t, err)

dataReader, err := blob.Data()
assert.NoError(t, err)

data, err := ioutil.ReadAll(dataReader)
assert.NoError(t, err)
assert.Equal(t, testCase.Data, data)
}
}

func TestRepository_GetBlob_NotExist(t *testing.T) {
repoPath := filepath.Join(testReposDir, "repo1_bare")
r, err := OpenRepository(repoPath)
assert.NoError(t, err)

testCase := "0000000000000000000000000000000000000000"
testError := ErrNotExist{testCase, ""}

blob, err := r.GetBlob(testCase)
assert.Nil(t, blob)
assert.EqualError(t, err, testError.Error())
}

func TestRepository_GetBlob_NoId(t *testing.T) {
repoPath := filepath.Join(testReposDir, "repo1_bare")
r, err := OpenRepository(repoPath)
assert.NoError(t, err)

testCase := ""
testError := fmt.Errorf("Length must be 40: %s", testCase)

blob, err := r.GetBlob(testCase)
assert.Nil(t, blob)
assert.EqualError(t, err, testError.Error())
}