bench-forgejo/modules/util/filebuffer/file_backed_buffer.go

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Add Package Registry (#16510) * Added package store settings. * Added models. * Added generic package registry. * Added tests. * Added NuGet package registry. * Moved service index to api file. * Added NPM package registry. * Added Maven package registry. * Added PyPI package registry. * Summary is deprecated. * Changed npm name. * Sanitize project url. * Allow only scoped packages. * Added user interface. * Changed method name. * Added missing migration file. * Set page info. * Added documentation. * Added documentation links. * Fixed wrong error message. * Lint template files. * Fixed merge errors. * Fixed unit test storage path. * Switch to json module. * Added suggestions. * Added package webhook. * Add package api. * Fixed swagger file. * Fixed enum and comments. * Fixed NuGet pagination. * Print test names. * Added api tests. * Fixed access level. * Fix User unmarshal. * Added RubyGems package registry. * Fix lint. * Implemented io.Writer. * Added support for sha256/sha512 checksum files. * Improved maven-metadata.xml support. * Added support for symbol package uploads. * Added tests. * Added overview docs. * Added npm dependencies and keywords. * Added no-packages information. * Display file size. * Display asset count. * Fixed filter alignment. * Added package icons. * Formatted instructions. * Allow anonymous package downloads. * Fixed comments. * Fixed postgres test. * Moved file. * Moved models to models/packages. * Use correct error response format per client. * Use simpler search form. * Fixed IsProd. * Restructured data model. * Prevent empty filename. * Fix swagger. * Implemented user/org registry. * Implemented UI. * Use GetUserByIDCtx. * Use table for dependencies. * make svg * Added support for unscoped npm packages. * Add support for npm dist tags. * Added tests for npm tags. * Unlink packages if repository gets deleted. * Prevent user/org delete if a packages exist. * Use package unlink in repository service. * Added support for composer packages. * Restructured package docs. * Added missing tests. * Fixed generic content page. * Fixed docs. * Fixed swagger. * Added missing type. * Fixed ambiguous column. * Organize content store by sha256 hash. * Added admin package management. * Added support for sorting. * Add support for multiple identical versions/files. * Added missing repository unlink. * Added file properties. * make fmt * lint * Added Conan package registry. * Updated docs. * Unify package names. * Added swagger enum. * Use longer TEXT column type. * Removed version composite key. * Merged package and container registry. * Removed index. * Use dedicated package router. * Moved files to new location. * Updated docs. * Fixed JOIN order. * Fixed GROUP BY statement. * Fixed GROUP BY #2. * Added symbol server support. * Added more tests. * Set NOT NULL. * Added setting to disable package registries. * Moved auth into service. * refactor * Use ctx everywhere. * Added package cleanup task. * Changed packages path. * Added container registry. * Refactoring * Updated comparison. * Fix swagger. * Fixed table order. * Use token auth for npm routes. * Enabled ReverseProxy auth. * Added packages link for orgs. * Fixed anonymous org access. * Enable copy button for setup instructions. * Merge error * Added suggestions. * Fixed merge. * Handle "generic". * Added link for TODO. * Added suggestions. * Changed temporary buffer filename. * Added suggestions. * Apply suggestions from code review Co-authored-by: Thomas Boerger <thomas@webhippie.de> * Update docs/content/doc/packages/nuget.en-us.md Co-authored-by: wxiaoguang <wxiaoguang@gmail.com> Co-authored-by: Thomas Boerger <thomas@webhippie.de>
2022-03-30 14:12:47 +05:30
// Copyright 2021 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 filebuffer
import (
"bytes"
"errors"
"io"
"os"
)
const maxInt = int(^uint(0) >> 1) // taken from bytes.Buffer
var (
// ErrInvalidMemorySize occurs if the memory size is not in a valid range
ErrInvalidMemorySize = errors.New("Memory size must be greater 0 and lower math.MaxInt32")
// ErrWriteAfterRead occurs if Write is called after a read operation
ErrWriteAfterRead = errors.New("Write is unsupported after a read operation")
)
type readAtSeeker interface {
io.ReadSeeker
io.ReaderAt
}
// FileBackedBuffer uses a memory buffer with a fixed size.
// If more data is written a temporary file is used instead.
// It implements io.ReadWriteCloser, io.ReadSeekCloser and io.ReaderAt
type FileBackedBuffer struct {
maxMemorySize int64
size int64
buffer bytes.Buffer
file *os.File
reader readAtSeeker
}
// New creates a file backed buffer with a specific maximum memory size
func New(maxMemorySize int) (*FileBackedBuffer, error) {
if maxMemorySize < 0 || maxMemorySize > maxInt {
return nil, ErrInvalidMemorySize
}
return &FileBackedBuffer{
maxMemorySize: int64(maxMemorySize),
}, nil
}
// CreateFromReader creates a file backed buffer and copies the provided reader data into it.
func CreateFromReader(r io.Reader, maxMemorySize int) (*FileBackedBuffer, error) {
b, err := New(maxMemorySize)
if err != nil {
return nil, err
}
_, err = io.Copy(b, r)
if err != nil {
return nil, err
}
return b, nil
}
// Write implements io.Writer
func (b *FileBackedBuffer) Write(p []byte) (int, error) {
if b.reader != nil {
return 0, ErrWriteAfterRead
}
var n int
var err error
if b.file != nil {
n, err = b.file.Write(p)
} else {
if b.size+int64(len(p)) > b.maxMemorySize {
b.file, err = os.CreateTemp("", "gitea-buffer-")
if err != nil {
return 0, err
}
_, err = io.Copy(b.file, &b.buffer)
if err != nil {
return 0, err
}
return b.Write(p)
}
n, err = b.buffer.Write(p)
}
if err != nil {
return n, err
}
b.size += int64(n)
return n, nil
}
// Size returns the byte size of the buffered data
func (b *FileBackedBuffer) Size() int64 {
return b.size
}
func (b *FileBackedBuffer) switchToReader() {
if b.reader != nil {
return
}
if b.file != nil {
b.reader = b.file
} else {
b.reader = bytes.NewReader(b.buffer.Bytes())
}
}
// Read implements io.Reader
func (b *FileBackedBuffer) Read(p []byte) (int, error) {
b.switchToReader()
return b.reader.Read(p)
}
// ReadAt implements io.ReaderAt
func (b *FileBackedBuffer) ReadAt(p []byte, off int64) (int, error) {
b.switchToReader()
return b.reader.ReadAt(p, off)
}
// Seek implements io.Seeker
func (b *FileBackedBuffer) Seek(offset int64, whence int) (int64, error) {
b.switchToReader()
return b.reader.Seek(offset, whence)
}
// Close implements io.Closer
func (b *FileBackedBuffer) Close() error {
if b.file != nil {
err := b.file.Close()
os.Remove(b.file.Name())
return err
}
return nil
}