Provide self-registering storage system (#12978)

* Provide self-registering storage system

Signed-off-by: Andrew Thornton <art27@cantab.net>

* More simplification

Signed-off-by: Andrew Thornton <art27@cantab.net>

* Remove old strings from setting

Signed-off-by: Andrew Thornton <art27@cantab.net>

* oops attachments not attachment

Signed-off-by: Andrew Thornton <art27@cantab.net>

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
release/v1.15
zeripath 2020-10-13 04:58:34 +01:00 committed by GitHub
parent ade9c8dc3c
commit 6b1266b6b3
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
10 changed files with 264 additions and 174 deletions

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@ -32,8 +32,8 @@ var CmdMigrateStorage = cli.Command{
}, },
cli.StringFlag{ cli.StringFlag{
Name: "storage, s", Name: "storage, s",
Value: setting.LocalStorageType, Value: "",
Usage: "New storage type, local or minio", Usage: "New storage type: local (default) or minio",
}, },
cli.StringFlag{ cli.StringFlag{
Name: "path, p", Name: "path, p",
@ -107,6 +107,8 @@ func runMigrateStorage(ctx *cli.Context) error {
return err return err
} }
goCtx := context.Background()
if err := storage.Init(); err != nil { if err := storage.Init(); err != nil {
return err return err
} }
@ -114,24 +116,31 @@ func runMigrateStorage(ctx *cli.Context) error {
var dstStorage storage.ObjectStorage var dstStorage storage.ObjectStorage
var err error var err error
switch strings.ToLower(ctx.String("storage")) { switch strings.ToLower(ctx.String("storage")) {
case setting.LocalStorageType: case "":
fallthrough
case string(storage.LocalStorageType):
p := ctx.String("path") p := ctx.String("path")
if p == "" { if p == "" {
log.Fatal("Path must be given when storage is loal") log.Fatal("Path must be given when storage is loal")
return nil return nil
} }
dstStorage, err = storage.NewLocalStorage(p) dstStorage, err = storage.NewLocalStorage(
case setting.MinioStorageType: goCtx,
storage.LocalStorageConfig{
Path: p,
})
case string(storage.MinioStorageType):
dstStorage, err = storage.NewMinioStorage( dstStorage, err = storage.NewMinioStorage(
context.Background(), goCtx,
ctx.String("minio-endpoint"), storage.MinioStorageConfig{
ctx.String("minio-access-key-id"), Endpoint: ctx.String("minio-endpoint"),
ctx.String("minio-secret-access-key"), AccessKeyID: ctx.String("minio-access-key-id"),
ctx.String("minio-bucket"), SecretAccessKey: ctx.String("minio-secret-access-key"),
ctx.String("minio-location"), Bucket: ctx.String("minio-bucket"),
ctx.String("minio-base-path"), Location: ctx.String("minio-location"),
ctx.Bool("minio-use-ssl"), BasePath: ctx.String("minio-base-path"),
) UseSSL: ctx.Bool("minio-use-ssl"),
})
default: default:
return fmt.Errorf("Unsupported attachments storage type: %s", ctx.String("storage")) return fmt.Errorf("Unsupported attachments storage type: %s", ctx.String("storage"))
} }

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@ -67,10 +67,8 @@ func MainTest(m *testing.M, pathToGiteaRoot string) {
if err != nil { if err != nil {
fatalTestError("url.Parse: %v\n", err) fatalTestError("url.Parse: %v\n", err)
} }
setting.Attachment.Storage.Type = setting.LocalStorageType
setting.Attachment.Storage.Path = filepath.Join(setting.AppDataPath, "attachments") setting.Attachment.Storage.Path = filepath.Join(setting.AppDataPath, "attachments")
setting.LFS.Storage.Type = setting.LocalStorageType
setting.LFS.Storage.Path = filepath.Join(setting.AppDataPath, "lfs") setting.LFS.Storage.Path = filepath.Join(setting.AppDataPath, "lfs")
if err = storage.Init(); err != nil { if err = storage.Init(); err != nil {
fatalTestError("storage.Init: %v\n", err) fatalTestError("storage.Init: %v\n", err)

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@ -4,12 +4,6 @@
package setting package setting
import (
"path/filepath"
"code.gitea.io/gitea/modules/log"
)
var ( var (
// Attachment settings // Attachment settings
Attachment = struct { Attachment = struct {
@ -20,7 +14,6 @@ var (
Enabled bool Enabled bool
}{ }{
Storage: Storage{ Storage: Storage{
Type: LocalStorageType,
ServeDirect: false, ServeDirect: false,
}, },
AllowedTypes: "image/jpeg,image/png,application/zip,application/gzip", AllowedTypes: "image/jpeg,image/png,application/zip,application/gzip",
@ -32,37 +25,9 @@ var (
func newAttachmentService() { func newAttachmentService() {
sec := Cfg.Section("attachment") sec := Cfg.Section("attachment")
Attachment.Storage.Type = sec.Key("STORAGE_TYPE").MustString("") storageType := sec.Key("STORAGE_TYPE").MustString("")
if Attachment.Storage.Type == "" {
Attachment.Storage.Type = "default"
}
if Attachment.Storage.Type != LocalStorageType && Attachment.Storage.Type != MinioStorageType { Attachment.Storage = getStorage("attachments", storageType, sec)
storage, ok := storages[Attachment.Storage.Type]
if !ok {
log.Fatal("Failed to get attachment storage type: %s", Attachment.Storage.Type)
}
Attachment.Storage = storage
}
// Override
Attachment.ServeDirect = sec.Key("SERVE_DIRECT").MustBool(Attachment.ServeDirect)
switch Attachment.Storage.Type {
case LocalStorageType:
Attachment.Path = sec.Key("PATH").MustString(filepath.Join(AppDataPath, "attachments"))
if !filepath.IsAbs(Attachment.Path) {
Attachment.Path = filepath.Join(AppWorkPath, Attachment.Path)
}
case MinioStorageType:
Attachment.Minio.Endpoint = sec.Key("MINIO_ENDPOINT").MustString(Attachment.Minio.Endpoint)
Attachment.Minio.AccessKeyID = sec.Key("MINIO_ACCESS_KEY_ID").MustString(Attachment.Minio.AccessKeyID)
Attachment.Minio.SecretAccessKey = sec.Key("MINIO_SECRET_ACCESS_KEY").MustString(Attachment.Minio.SecretAccessKey)
Attachment.Minio.Bucket = sec.Key("MINIO_BUCKET").MustString(Attachment.Minio.Bucket)
Attachment.Minio.Location = sec.Key("MINIO_LOCATION").MustString(Attachment.Minio.Location)
Attachment.Minio.UseSSL = sec.Key("MINIO_USE_SSL").MustBool(Attachment.Minio.UseSSL)
Attachment.Minio.BasePath = sec.Key("MINIO_BASE_PATH").MustString("attachments/")
}
Attachment.AllowedTypes = sec.Key("ALLOWED_TYPES").MustString(".docx,.gif,.gz,.jpeg,.jpg,.log,.pdf,.png,.pptx,.txt,.xlsx,.zip") Attachment.AllowedTypes = sec.Key("ALLOWED_TYPES").MustString(".docx,.gif,.gz,.jpeg,.jpg,.log,.pdf,.png,.pptx,.txt,.xlsx,.zip")
Attachment.MaxSize = sec.Key("MAX_SIZE").MustInt64(4) Attachment.MaxSize = sec.Key("MAX_SIZE").MustInt64(4)

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@ -37,40 +37,15 @@ func newLFSService() {
} }
lfsSec := Cfg.Section("lfs") lfsSec := Cfg.Section("lfs")
LFS.Storage.Type = lfsSec.Key("STORAGE_TYPE").MustString("") storageType := lfsSec.Key("STORAGE_TYPE").MustString("")
if LFS.Storage.Type == "" {
LFS.Storage.Type = "default"
}
if LFS.Storage.Type != LocalStorageType && LFS.Storage.Type != MinioStorageType { // Specifically default PATH to LFS_CONTENT_PATH
storage, ok := storages[LFS.Storage.Type] lfsSec.Key("PATH").MustString(
if !ok { sec.Key("LFS_CONTENT_PATH").String())
log.Fatal("Failed to get lfs storage type: %s", LFS.Storage.Type)
}
LFS.Storage = storage
}
// Override LFS.Storage = getStorage("lfs", storageType, lfsSec)
LFS.ServeDirect = lfsSec.Key("SERVE_DIRECT").MustBool(LFS.ServeDirect)
switch LFS.Storage.Type {
case LocalStorageType:
// keep compatible
LFS.Path = sec.Key("LFS_CONTENT_PATH").MustString(filepath.Join(AppDataPath, "lfs"))
LFS.Path = lfsSec.Key("PATH").MustString(LFS.Path)
if !filepath.IsAbs(LFS.Path) {
LFS.Path = filepath.Join(AppWorkPath, LFS.Path)
}
case MinioStorageType:
LFS.Minio.Endpoint = lfsSec.Key("MINIO_ENDPOINT").MustString(LFS.Minio.Endpoint)
LFS.Minio.AccessKeyID = lfsSec.Key("MINIO_ACCESS_KEY_ID").MustString(LFS.Minio.AccessKeyID)
LFS.Minio.SecretAccessKey = lfsSec.Key("MINIO_SECRET_ACCESS_KEY").MustString(LFS.Minio.SecretAccessKey)
LFS.Minio.Bucket = lfsSec.Key("MINIO_BUCKET").MustString(LFS.Minio.Bucket)
LFS.Minio.Location = lfsSec.Key("MINIO_LOCATION").MustString(LFS.Minio.Location)
LFS.Minio.UseSSL = lfsSec.Key("MINIO_USE_SSL").MustBool(LFS.Minio.UseSSL)
LFS.Minio.BasePath = lfsSec.Key("MINIO_BASE_PATH").MustString("lfs/")
}
// Rest of LFS service settings
if LFS.LocksPagingNum == 0 { if LFS.LocksPagingNum == 0 {
LFS.LocksPagingNum = 50 LFS.LocksPagingNum = 50
} }

View File

@ -804,7 +804,6 @@ func NewContext() {
} }
} }
newStorageService()
newAttachmentService() newAttachmentService()
newLFSService() newLFSService()

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@ -5,65 +5,77 @@
package setting package setting
import ( import (
"strings" "path/filepath"
"reflect"
"code.gitea.io/gitea/modules/log"
ini "gopkg.in/ini.v1" ini "gopkg.in/ini.v1"
) )
// enumerate all storage types
const (
LocalStorageType = "local"
MinioStorageType = "minio"
)
// Storage represents configuration of storages // Storage represents configuration of storages
type Storage struct { type Storage struct {
Type string Type string
Path string Path string
Section *ini.Section
ServeDirect bool ServeDirect bool
Minio struct {
Endpoint string
AccessKeyID string
SecretAccessKey string
UseSSL bool
Bucket string
Location string
BasePath string
}
} }
var ( // MapTo implements the Mappable interface
storages = make(map[string]Storage) func (s *Storage) MapTo(v interface{}) error {
) pathValue := reflect.ValueOf(v).FieldByName("Path")
if pathValue.IsValid() && pathValue.Kind() == reflect.String {
func getStorage(sec *ini.Section) Storage { pathValue.SetString(s.Path)
var storage Storage
storage.Type = sec.Key("STORAGE_TYPE").MustString(LocalStorageType)
storage.ServeDirect = sec.Key("SERVE_DIRECT").MustBool(false)
switch storage.Type {
case LocalStorageType:
case MinioStorageType:
storage.Minio.Endpoint = sec.Key("MINIO_ENDPOINT").MustString("localhost:9000")
storage.Minio.AccessKeyID = sec.Key("MINIO_ACCESS_KEY_ID").MustString("")
storage.Minio.SecretAccessKey = sec.Key("MINIO_SECRET_ACCESS_KEY").MustString("")
storage.Minio.Bucket = sec.Key("MINIO_BUCKET").MustString("gitea")
storage.Minio.Location = sec.Key("MINIO_LOCATION").MustString("us-east-1")
storage.Minio.UseSSL = sec.Key("MINIO_USE_SSL").MustBool(false)
} }
if s.Section != nil {
return s.Section.MapTo(v)
}
return nil
}
func getStorage(name, typ string, overrides ...*ini.Section) Storage {
sectionName := "storage"
if len(name) > 0 {
sectionName = sectionName + "." + typ
}
sec := Cfg.Section(sectionName)
if len(overrides) == 0 {
overrides = []*ini.Section{
Cfg.Section(sectionName + "." + name),
}
}
var storage Storage
storage.Type = sec.Key("STORAGE_TYPE").MustString("")
storage.ServeDirect = sec.Key("SERVE_DIRECT").MustBool(false)
// Global Defaults
sec.Key("MINIO_ENDPOINT").MustString("localhost:9000")
sec.Key("MINIO_ACCESS_KEY_ID").MustString("")
sec.Key("MINIO_SECRET_ACCESS_KEY").MustString("")
sec.Key("MINIO_BUCKET").MustString("gitea")
sec.Key("MINIO_LOCATION").MustString("us-east-1")
sec.Key("MINIO_USE_SSL").MustBool(false)
storage.Section = sec
for _, override := range overrides {
for _, key := range storage.Section.Keys() {
if !override.HasKey(key.Name()) {
_, _ = override.NewKey(key.Name(), key.Value())
}
}
storage.ServeDirect = override.Key("SERVE_DIRECT").MustBool(false)
storage.Section = override
}
// Specific defaults
storage.Path = storage.Section.Key("PATH").MustString(filepath.Join(AppDataPath, name))
if !filepath.IsAbs(storage.Path) {
storage.Path = filepath.Join(AppWorkPath, storage.Path)
storage.Section.Key("PATH").SetValue(storage.Path)
}
storage.Section.Key("MINIO_BASE_PATH").MustString(name + "/")
return storage return storage
} }
func newStorageService() {
sec := Cfg.Section("storage")
storages["default"] = getStorage(sec)
for _, sec := range Cfg.Section("storage").ChildSections() {
name := strings.TrimPrefix(sec.Name(), "storage.")
if name == "default" || name == LocalStorageType || name == MinioStorageType {
log.Error("storage name %s is system reserved!", name)
continue
}
storages[name] = getStorage(sec)
}
}

65
modules/storage/helper.go Normal file
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@ -0,0 +1,65 @@
// Copyright 2020 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 storage
import (
"encoding/json"
"reflect"
)
// Mappable represents an interface that can MapTo another interface
type Mappable interface {
MapTo(v interface{}) error
}
// toConfig will attempt to convert a given configuration cfg into the provided exemplar type.
//
// It will tolerate the cfg being passed as a []byte or string of a json representation of the
// exemplar or the correct type of the exemplar itself
func toConfig(exemplar, cfg interface{}) (interface{}, error) {
// First of all check if we've got the same type as the exemplar - if so it's all fine.
if reflect.TypeOf(cfg).AssignableTo(reflect.TypeOf(exemplar)) {
return cfg, nil
}
// Now if not - does it provide a MapTo function we can try?
if mappable, ok := cfg.(Mappable); ok {
newVal := reflect.New(reflect.TypeOf(exemplar))
if err := mappable.MapTo(newVal.Interface()); err == nil {
return newVal.Elem().Interface(), nil
}
// MapTo has failed us ... let's try the json route ...
}
// OK we've been passed a byte array right?
configBytes, ok := cfg.([]byte)
if !ok {
// oh ... it's a string then?
var configStr string
configStr, ok = cfg.(string)
configBytes = []byte(configStr)
}
if !ok {
// hmm ... can we marshal it to json?
var err error
configBytes, err = json.Marshal(cfg)
ok = (err == nil)
}
if !ok {
// no ... we've tried hard enough at this point - throw an error!
return nil, ErrInvalidConfiguration{cfg: cfg}
}
// OK unmarshal the byte array into a new copy of the exemplar
newVal := reflect.New(reflect.TypeOf(exemplar))
if err := json.Unmarshal(configBytes, newVal.Interface()); err != nil {
// If we can't unmarshal it then return an error!
return nil, ErrInvalidConfiguration{cfg: cfg, err: err}
}
return newVal.Elem().Interface(), nil
}

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@ -5,6 +5,7 @@
package storage package storage
import ( import (
"context"
"io" "io"
"net/url" "net/url"
"os" "os"
@ -17,19 +18,35 @@ var (
_ ObjectStorage = &LocalStorage{} _ ObjectStorage = &LocalStorage{}
) )
// LocalStorageType is the type descriptor for local storage
const LocalStorageType Type = "local"
// LocalStorageConfig represents the configuration for a local storage
type LocalStorageConfig struct {
Path string `ini:"PATH"`
}
// LocalStorage represents a local files storage // LocalStorage represents a local files storage
type LocalStorage struct { type LocalStorage struct {
ctx context.Context
dir string dir string
} }
// NewLocalStorage returns a local files // NewLocalStorage returns a local files
func NewLocalStorage(bucket string) (*LocalStorage, error) { func NewLocalStorage(ctx context.Context, cfg interface{}) (ObjectStorage, error) {
if err := os.MkdirAll(bucket, os.ModePerm); err != nil { configInterface, err := toConfig(LocalStorageConfig{}, cfg)
if err != nil {
return nil, err
}
config := configInterface.(LocalStorageConfig)
if err := os.MkdirAll(config.Path, os.ModePerm); err != nil {
return nil, err return nil, err
} }
return &LocalStorage{ return &LocalStorage{
dir: bucket, ctx: ctx,
dir: config.Path,
}, nil }, nil
} }
@ -80,6 +97,11 @@ func (l *LocalStorage) IterateObjects(fn func(path string, obj Object) error) er
if err != nil { if err != nil {
return err return err
} }
select {
case <-l.ctx.Done():
return l.ctx.Err()
default:
}
if path == l.dir { if path == l.dir {
return nil return nil
} }
@ -98,3 +120,7 @@ func (l *LocalStorage) IterateObjects(fn func(path string, obj Object) error) er
return fn(relPath, obj) return fn(relPath, obj)
}) })
} }
func init() {
RegisterStorageType(LocalStorageType, NewLocalStorage)
}

View File

@ -18,8 +18,9 @@ import (
) )
var ( var (
_ ObjectStorage = &MinioStorage{} _ ObjectStorage = &MinioStorage{}
quoteEscaper = strings.NewReplacer("\\", "\\\\", `"`, "\\\"")
quoteEscaper = strings.NewReplacer("\\", "\\\\", `"`, "\\\"")
) )
type minioObject struct { type minioObject struct {
@ -35,6 +36,20 @@ func (m *minioObject) Stat() (os.FileInfo, error) {
return &minioFileInfo{oi}, nil return &minioFileInfo{oi}, nil
} }
// MinioStorageType is the type descriptor for minio storage
const MinioStorageType Type = "minio"
// MinioStorageConfig represents the configuration for a minio storage
type MinioStorageConfig struct {
Endpoint string `ini:"MINIO_ENDPOINT"`
AccessKeyID string `ini:"MINIO_ACCESS_KEY_ID"`
SecretAccessKey string `ini:"MINIO_SECRET_ACCESS_KEY"`
Bucket string `ini:"MINIO_BUCKET"`
Location string `ini:"MINIO_LOCATION"`
BasePath string `ini:"MINIO_BASE_PATH"`
UseSSL bool `ini:"MINIO_USE_SSL"`
}
// MinioStorage returns a minio bucket storage // MinioStorage returns a minio bucket storage
type MinioStorage struct { type MinioStorage struct {
ctx context.Context ctx context.Context
@ -44,20 +59,26 @@ type MinioStorage struct {
} }
// NewMinioStorage returns a minio storage // NewMinioStorage returns a minio storage
func NewMinioStorage(ctx context.Context, endpoint, accessKeyID, secretAccessKey, bucket, location, basePath string, useSSL bool) (*MinioStorage, error) { func NewMinioStorage(ctx context.Context, cfg interface{}) (ObjectStorage, error) {
minioClient, err := minio.New(endpoint, &minio.Options{ configInterface, err := toConfig(MinioStorageConfig{}, cfg)
Creds: credentials.NewStaticV4(accessKeyID, secretAccessKey, ""), if err != nil {
Secure: useSSL, return nil, err
}
config := configInterface.(MinioStorageConfig)
minioClient, err := minio.New(config.Endpoint, &minio.Options{
Creds: credentials.NewStaticV4(config.AccessKeyID, config.SecretAccessKey, ""),
Secure: config.UseSSL,
}) })
if err != nil { if err != nil {
return nil, err return nil, err
} }
if err := minioClient.MakeBucket(ctx, bucket, minio.MakeBucketOptions{ if err := minioClient.MakeBucket(ctx, config.Bucket, minio.MakeBucketOptions{
Region: location, Region: config.Location,
}); err != nil { }); err != nil {
// Check to see if we already own this bucket (which happens if you run this twice) // Check to see if we already own this bucket (which happens if you run this twice)
exists, errBucketExists := minioClient.BucketExists(ctx, bucket) exists, errBucketExists := minioClient.BucketExists(ctx, config.Bucket)
if !exists || errBucketExists != nil { if !exists || errBucketExists != nil {
return nil, err return nil, err
} }
@ -66,8 +87,8 @@ func NewMinioStorage(ctx context.Context, endpoint, accessKeyID, secretAccessKey
return &MinioStorage{ return &MinioStorage{
ctx: ctx, ctx: ctx,
client: minioClient, client: minioClient,
bucket: bucket, bucket: config.Bucket,
basePath: basePath, basePath: config.BasePath,
}, nil }, nil
} }
@ -183,3 +204,7 @@ func (m *MinioStorage) IterateObjects(fn func(path string, obj Object) error) er
} }
return nil return nil
} }
func init() {
RegisterStorageType(MinioStorageType, NewMinioStorage)
}

View File

@ -22,6 +22,38 @@ var (
ErrIterateObjectsNotSupported = errors.New("iterateObjects method not supported") ErrIterateObjectsNotSupported = errors.New("iterateObjects method not supported")
) )
// ErrInvalidConfiguration is called when there is invalid configuration for a storage
type ErrInvalidConfiguration struct {
cfg interface{}
err error
}
func (err ErrInvalidConfiguration) Error() string {
if err.err != nil {
return fmt.Sprintf("Invalid Configuration Argument: %v: Error: %v", err.cfg, err.err)
}
return fmt.Sprintf("Invalid Configuration Argument: %v", err.cfg)
}
// IsErrInvalidConfiguration checks if an error is an ErrInvalidConfiguration
func IsErrInvalidConfiguration(err error) bool {
_, ok := err.(ErrInvalidConfiguration)
return ok
}
// Type is a type of Storage
type Type string
// NewStorageFunc is a function that creates a storage
type NewStorageFunc func(ctx context.Context, cfg interface{}) (ObjectStorage, error)
var storageMap = map[Type]NewStorageFunc{}
// RegisterStorageType registers a provided storage type with a function to create it
func RegisterStorageType(typ Type, fn func(ctx context.Context, cfg interface{}) (ObjectStorage, error)) {
storageMap[typ] = fn
}
// Object represents the object on the storage // Object represents the object on the storage
type Object interface { type Object interface {
io.ReadCloser io.ReadCloser
@ -67,41 +99,25 @@ func Init() error {
return initLFS() return initLFS()
} }
func initStorage(storageCfg setting.Storage) (ObjectStorage, error) { // NewStorage takes a storage type and some config and returns an ObjectStorage or an error
var err error func NewStorage(typStr string, cfg interface{}) (ObjectStorage, error) {
var s ObjectStorage if len(typStr) == 0 {
switch storageCfg.Type { typStr = string(LocalStorageType)
case setting.LocalStorageType: }
s, err = NewLocalStorage(storageCfg.Path) fn, ok := storageMap[Type(typStr)]
case setting.MinioStorageType: if !ok {
minio := storageCfg.Minio return nil, fmt.Errorf("Unsupported storage type: %s", typStr)
s, err = NewMinioStorage(
context.Background(),
minio.Endpoint,
minio.AccessKeyID,
minio.SecretAccessKey,
minio.Bucket,
minio.Location,
minio.BasePath,
minio.UseSSL,
)
default:
return nil, fmt.Errorf("Unsupported attachment store type: %s", storageCfg.Type)
} }
if err != nil { return fn(context.Background(), cfg)
return nil, err
}
return s, nil
} }
func initAttachments() (err error) { func initAttachments() (err error) {
Attachments, err = initStorage(setting.Attachment.Storage) Attachments, err = NewStorage(setting.Attachment.Storage.Type, setting.Attachment.Storage)
return return
} }
func initLFS() (err error) { func initLFS() (err error) {
LFS, err = initStorage(setting.LFS.Storage) LFS, err = NewStorage(setting.LFS.Storage.Type, setting.LFS.Storage)
return return
} }