mirror of
https://github.com/go-gitea/gitea.git
synced 2026-07-21 22:05:17 +02:00
ae176cd649
Blob.Size requires a context after the repository context removal
(5b078f72aa).
Actually the template code should just render, it should not depend on
the fragile dynamic calls to backend functions.
---------
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
105 lines
2.5 KiB
Go
105 lines
2.5 KiB
Go
// Copyright 2015 The Gogs Authors. All rights reserved.
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// Copyright 2019 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package git
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import (
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"bytes"
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"context"
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"encoding/base64"
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"errors"
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"io"
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"strings"
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"gitea.dev/modules/util"
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)
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// This file contains common functions between the gogit and !gogit variants for git Blobs
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// Name returns name of the tree entry this blob object was created from (or empty string)
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func (b *Blob) Name() string {
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return b.name
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}
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// GetBlobBytes Gets the limited content of the blob
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func (b *Blob) GetBlobBytes(ctx context.Context, limit int64) ([]byte, error) {
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if limit <= 0 {
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return nil, nil
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}
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dataRc, err := b.DataAsync(ctx)
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if err != nil {
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return nil, err
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}
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defer dataRc.Close()
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return util.ReadWithLimit(dataRc, int(limit))
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}
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// GetBlobContent Gets the limited content of the blob as raw text
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func (b *Blob) GetBlobContent(ctx context.Context, limit int64) (string, error) {
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buf, err := b.GetBlobBytes(ctx, limit)
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return string(buf), err
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}
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// GetBlobLineCount gets line count of the blob.
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// It will also try to write the content to w if it's not nil, then we could pre-fetch the content without reading it again.
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func (b *Blob) GetBlobLineCount(ctx context.Context, w io.Writer) (size int64, count int, _ error) {
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reader, err := b.DataAsync(ctx)
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if err != nil {
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return 0, 0, err
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}
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defer reader.Close()
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buf := make([]byte, 32*1024)
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size, count = 0, 1
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lineSep := []byte{'\n'}
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for {
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c, err := reader.Read(buf)
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size += int64(c)
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if w != nil {
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if _, err := w.Write(buf[:c]); err != nil {
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return size, count, err
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}
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}
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count += bytes.Count(buf[:c], lineSep)
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switch {
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case errors.Is(err, io.EOF):
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return size, count, nil
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case err != nil:
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return size, count, err
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}
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}
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}
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// GetBlobContentBase64 Reads the content of the blob with a base64 encoding and returns the encoded string
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func (b *Blob) GetBlobContentBase64(ctx context.Context, originContent *strings.Builder) (string, error) {
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dataRc, err := b.DataAsync(ctx)
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if err != nil {
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return "", err
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}
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defer dataRc.Close()
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base64buf := &strings.Builder{}
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encoder := base64.NewEncoder(base64.StdEncoding, base64buf)
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buf := make([]byte, 32*1024)
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loop:
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for {
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n, err := dataRc.Read(buf)
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if n > 0 {
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if originContent != nil {
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_, _ = originContent.Write(buf[:n])
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}
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if _, err := encoder.Write(buf[:n]); err != nil {
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return "", err
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}
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}
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switch {
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case errors.Is(err, io.EOF):
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break loop
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case err != nil:
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return "", err
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}
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}
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_ = encoder.Close()
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return base64buf.String(), nil
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}
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