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Use new fscache's SetKeyMapper

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See a0daa9e527
This commit is contained in:
Deluan 2020-11-03 12:52:44 -05:00
parent f4a88b8319
commit 2f56f1b178
4 changed files with 24 additions and 37 deletions
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46
core/cache/spread_fs.go vendored
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@ -3,7 +3,6 @@ package cache
import (
"crypto/sha1"
"fmt"
"io/ioutil"
"os"
"path/filepath"
"strings"
@ -20,8 +19,6 @@ type spreadFS struct {
init func() error
}
const keyFileExtension = ".key"
// NewSpreadFS returns a FileSystem rooted at directory dir. It
// Dir is created with perms if it doesn't exist.
func NewSpreadFS(dir string, mode os.FileMode) (fscache.FileSystem, error) {
@ -39,32 +36,13 @@ func (fs *spreadFS) Reload(f func(key string, name string)) error {
return nil
}
// Skip if name is not in the format XX/XX/XXXXXXXXXXXX.key
// Skip if name is not in the format XX/XX/XXXXXXXXXXXX
parts := strings.Split(path, string(os.PathSeparator))
if len(parts) != 3 || len(parts[0]) != 2 || len(parts[1]) != 2 ||
filepath.Ext(path) != keyFileExtension {
if len(parts) != 3 || len(parts[0]) != 2 || len(parts[1]) != 2 {
return nil
}
keyFileName := absoluteFilePath
dataFileName := absoluteFilePath[0 : len(absoluteFilePath)-len(keyFileExtension)]
// Load the key from the key file. Remove and skip on error
key, err := ioutil.ReadFile(keyFileName)
if err != nil {
_ = fs.Remove(dataFileName)
return nil
}
// If the data file is not readable, remove and skip
file, err := os.Open(dataFileName)
defer func() { _ = file.Close() }()
if err != nil {
_ = fs.Remove(dataFileName)
return nil
}
f(string(key), dataFileName)
f(absoluteFilePath, absoluteFilePath)
return nil
},
Unsorted: true,
@ -72,18 +50,12 @@ func (fs *spreadFS) Reload(f func(key string, name string)) error {
}
func (fs *spreadFS) Create(name string) (stream.File, error) {
key := fmt.Sprintf("%x", sha1.Sum([]byte(name)))
path := fmt.Sprintf("%s%c%s", key[0:2], os.PathSeparator, key[2:4])
err := os.MkdirAll(filepath.Join(fs.root, path), fs.mode)
path := filepath.Dir(name)
err := os.MkdirAll(path, fs.mode)
if err != nil {
return nil, err
}
absolutePath := filepath.Join(fs.root, path, key)
err = ioutil.WriteFile(absolutePath+keyFileExtension, []byte(name), 0600)
if err != nil {
return nil, err
}
return os.OpenFile(absolutePath, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0600)
return os.OpenFile(name, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0600)
}
func (fs *spreadFS) Open(name string) (stream.File, error) {
@ -91,7 +63,6 @@ func (fs *spreadFS) Open(name string) (stream.File, error) {
}
func (fs *spreadFS) Remove(name string) error {
_ = os.Remove(name + keyFileExtension)
return os.Remove(name)
}
@ -109,3 +80,8 @@ func (fs *spreadFS) RemoveAll() error {
}
return fs.init()
}
func (fs *spreadFS) KeyMapper(key string) string {
hash := fmt.Sprintf("%x", sha1.Sum([]byte(key)))
return filepath.Join(fs.root, hash[0:2], hash[2:4], hash)
}