githaven-fork/modules/git/blob.go
Eng Zer Jun f2e7d5477f
refactor: move from io/ioutil to io and os package (#17109)
The io/ioutil package has been deprecated as of Go 1.16, see
https://golang.org/doc/go1.16#ioutil. This commit replaces the existing
io/ioutil functions with their new definitions in io and os packages.

Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>

Co-authored-by: techknowlogick <techknowlogick@gitea.io>
2021-09-22 13:38:34 +08:00

102 lines
2.2 KiB
Go

// Copyright 2015 The Gogs Authors. All rights reserved.
// Copyright 2019 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 (
"bytes"
"encoding/base64"
"io"
"code.gitea.io/gitea/modules/typesniffer"
)
// This file contains common functions between the gogit and !gogit variants for git Blobs
// Name returns name of the tree entry this blob object was created from (or empty string)
func (b *Blob) Name() string {
return b.name
}
// GetBlobContent Gets the content of the blob as raw text
func (b *Blob) GetBlobContent() (string, error) {
dataRc, err := b.DataAsync()
if err != nil {
return "", err
}
defer dataRc.Close()
buf := make([]byte, 1024)
n, _ := dataRc.Read(buf)
buf = buf[:n]
return string(buf), nil
}
// GetBlobLineCount gets line count of the blob
func (b *Blob) GetBlobLineCount() (int, error) {
reader, err := b.DataAsync()
if err != nil {
return 0, err
}
defer reader.Close()
buf := make([]byte, 32*1024)
count := 1
lineSep := []byte{'\n'}
c, err := reader.Read(buf)
if c == 0 && err == io.EOF {
return 0, nil
}
for {
count += bytes.Count(buf[:c], lineSep)
switch {
case err == io.EOF:
return count, nil
case err != nil:
return count, err
}
c, err = reader.Read(buf)
}
}
// GetBlobContentBase64 Reads the content of the blob with a base64 encode and returns the encoded string
func (b *Blob) GetBlobContentBase64() (string, error) {
dataRc, err := b.DataAsync()
if err != nil {
return "", err
}
defer dataRc.Close()
pr, pw := io.Pipe()
encoder := base64.NewEncoder(base64.StdEncoding, pw)
go func() {
_, err := io.Copy(encoder, dataRc)
_ = encoder.Close()
if err != nil {
_ = pw.CloseWithError(err)
} else {
_ = pw.Close()
}
}()
out, err := io.ReadAll(pr)
if err != nil {
return "", err
}
return string(out), nil
}
// GuessContentType guesses the content type of the blob.
func (b *Blob) GuessContentType() (typesniffer.SniffedType, error) {
r, err := b.DataAsync()
if err != nil {
return typesniffer.SniffedType{}, err
}
defer r.Close()
return typesniffer.DetectContentTypeFromReader(r)
}