2015-10-16 20:26:01 +02:00
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/*
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* Minio Cloud Storage, (C) 2015 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package fs
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import (
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2015-11-07 01:46:04 +01:00
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"os"
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2015-10-16 20:26:01 +02:00
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"os/user"
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"path/filepath"
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"github.com/minio/minio-xl/pkg/probe"
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"github.com/minio/minio-xl/pkg/quick"
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)
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2015-11-07 01:46:04 +01:00
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// workaround for docker images with fully static binary.
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// for static binaries NSS library will not be a part of the static binary
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// hence user.Current() fails
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// more here : http://gnu.ist.utl.pt/software/libc/FAQ.html
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// FAQ says : NSS (for details just type `info libc "Name Service Switch"') won't work properly without shared libraries
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func userCurrent() (*user.User, *probe.Error) {
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if os.Getenv("DOCKERIMAGE") == "1" {
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wd, err := os.Getwd()
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if err != nil {
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return nil, probe.NewError(err)
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}
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return &user.User{Uid: "0", Gid: "0", Username: "root", Name: "root", HomeDir: wd}, nil
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}
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user, err := user.Current()
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if err != nil {
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return nil, probe.NewError(err)
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}
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return user, nil
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}
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2015-11-02 05:56:54 +01:00
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func getFSBucketsConfigPath() (string, *probe.Error) {
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if customBucketsConfigPath != "" {
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return customBucketsConfigPath, nil
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}
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u, err := userCurrent()
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if err != nil {
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return "", err.Trace()
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}
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fsBucketsConfigPath := filepath.Join(u.HomeDir, ".minio", "buckets.json")
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return fsBucketsConfigPath, nil
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}
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func getFSMultipartsSessionConfigPath() (string, *probe.Error) {
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if customMultipartsConfigPath != "" {
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return customMultipartsConfigPath, nil
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}
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u, err := userCurrent()
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if err != nil {
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return "", err.Trace()
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}
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fsMultipartsConfigPath := filepath.Join(u.HomeDir, ".minio", "multiparts-session.json")
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return fsMultipartsConfigPath, nil
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}
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// internal variable only accessed via get/set methods
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var customMultipartsConfigPath, customBucketsConfigPath string
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2015-11-02 05:56:54 +01:00
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// SetFSBucketsConfigPath - set custom fs buckets config path
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func SetFSBucketsConfigPath(configPath string) {
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customBucketsConfigPath = configPath
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}
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// SetFSMultipartsConfigPath - set custom multiparts session config path
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func SetFSMultipartsConfigPath(configPath string) {
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customMultipartsConfigPath = configPath
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}
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// SaveMultipartsSession - save multiparts
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func SaveMultipartsSession(multiparts *Multiparts) *probe.Error {
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fsMultipartsConfigPath, err := getFSMultipartsSessionConfigPath()
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if err != nil {
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return err.Trace()
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}
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qc, err := quick.New(multiparts)
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if err != nil {
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return err.Trace()
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}
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if err := qc.Save(fsMultipartsConfigPath); err != nil {
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return err.Trace()
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}
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return nil
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}
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2015-11-02 05:56:54 +01:00
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// SaveBucketsMetadata - save metadata of all buckets
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func SaveBucketsMetadata(buckets *Buckets) *probe.Error {
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fsBucketsConfigPath, err := getFSBucketsConfigPath()
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if err != nil {
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return err.Trace()
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}
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qc, err := quick.New(buckets)
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if err != nil {
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return err.Trace()
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}
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if err := qc.Save(fsBucketsConfigPath); err != nil {
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return err.Trace()
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}
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return nil
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}
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2015-10-16 20:26:01 +02:00
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// loadMultipartsSession load multipart session file
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func loadMultipartsSession() (*Multiparts, *probe.Error) {
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fsMultipartsConfigPath, err := getFSMultipartsSessionConfigPath()
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if err != nil {
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return nil, err.Trace()
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}
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multiparts := &Multiparts{}
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multiparts.Version = "1"
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multiparts.ActiveSession = make(map[string]*MultipartSession)
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qc, err := quick.New(multiparts)
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if err != nil {
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return nil, err.Trace()
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}
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if err := qc.Load(fsMultipartsConfigPath); err != nil {
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return nil, err.Trace()
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}
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return qc.Data().(*Multiparts), nil
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}
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// loadBucketsMetadata load buckets metadata file
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func loadBucketsMetadata() (*Buckets, *probe.Error) {
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fsBucketsConfigPath, err := getFSBucketsConfigPath()
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if err != nil {
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return nil, err.Trace()
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}
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buckets := &Buckets{}
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buckets.Version = "1"
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buckets.Metadata = make(map[string]*BucketMetadata)
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qc, err := quick.New(buckets)
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if err != nil {
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return nil, err.Trace()
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}
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if err := qc.Load(fsBucketsConfigPath); err != nil {
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return nil, err.Trace()
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}
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return qc.Data().(*Buckets), nil
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}
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