forked from forgejo/runner
c5c4e275ac
See [Caching dependencies to speed up workflows](https://docs.github.com/en/actions/using-workflows/caching-dependencies-to-speed-up-workflows). Reviewed-on: https://gitea.com/gitea/act_runner/pulls/25 Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com> Reviewed-by: Zettat123 <zettat123@noreply.gitea.io> Co-authored-by: Jason Song <i@wolfogre.com> Co-committed-by: Jason Song <i@wolfogre.com>
130 lines
2.5 KiB
Go
130 lines
2.5 KiB
Go
// Copyright 2023 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package artifactcache
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import (
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"fmt"
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"io"
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"net/http"
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"os"
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"path/filepath"
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)
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type Storage struct {
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rootDir string
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}
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func NewStorage(rootDir string) (*Storage, error) {
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if err := os.MkdirAll(rootDir, 0o755); err != nil {
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return nil, err
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}
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return &Storage{
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rootDir: rootDir,
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}, nil
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}
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func (s *Storage) Exist(id int64) (bool, error) {
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name := s.filename(id)
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if _, err := os.Stat(name); os.IsNotExist(err) {
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return false, nil
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} else if err != nil {
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return false, err
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}
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return true, nil
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}
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func (s *Storage) Write(id int64, offset int64, reader io.Reader) error {
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name := s.tempName(id, offset)
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if err := os.MkdirAll(filepath.Dir(name), 0o755); err != nil {
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return err
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}
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file, err := os.Create(name)
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if err != nil {
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return err
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}
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defer file.Close()
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_, err = io.Copy(file, reader)
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return err
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}
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func (s *Storage) Commit(id int64, size int64) error {
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defer func() {
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_ = os.RemoveAll(s.tempDir(id))
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}()
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name := s.filename(id)
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tempNames, err := s.tempNames(id)
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if err != nil {
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return err
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}
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if err := os.MkdirAll(filepath.Dir(name), 0o755); err != nil {
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return err
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}
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file, err := os.Create(name)
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if err != nil {
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return err
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}
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defer file.Close()
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var written int64
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for _, v := range tempNames {
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f, err := os.Open(v)
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if err != nil {
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return err
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}
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n, err := io.Copy(file, f)
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_ = f.Close()
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if err != nil {
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return err
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}
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written += n
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}
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if written != size {
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_ = file.Close()
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_ = os.Remove(name)
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return fmt.Errorf("broken file: %v != %v", written, size)
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}
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return nil
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}
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func (s *Storage) Serve(w http.ResponseWriter, r *http.Request, id int64) {
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name := s.filename(id)
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http.ServeFile(w, r, name)
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}
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func (s *Storage) Remove(id int64) {
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_ = os.Remove(s.filename(id))
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_ = os.RemoveAll(s.tempDir(id))
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}
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func (s *Storage) filename(id int64) string {
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return filepath.Join(s.rootDir, fmt.Sprintf("%02x", id%0xff), fmt.Sprint(id))
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}
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func (s *Storage) tempDir(id int64) string {
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return filepath.Join(s.rootDir, "tmp", fmt.Sprint(id))
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}
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func (s *Storage) tempName(id, offset int64) string {
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return filepath.Join(s.tempDir(id), fmt.Sprintf("%016x", offset))
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}
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func (s *Storage) tempNames(id int64) ([]string, error) {
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dir := s.tempDir(id)
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files, err := os.ReadDir(dir)
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if err != nil {
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return nil, err
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}
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var names []string
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for _, v := range files {
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if !v.IsDir() {
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names = append(names, filepath.Join(dir, v.Name()))
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}
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}
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return names, nil
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}
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