juicefs

社区版文档：
https://juicefs.com/docs/zh/community/introduction/

macOS 系统
由于 macOS 默认不支持 FUSE 接口，需要先安装 macFUSE 实现对 FUSE 的支持。
提示
macFUSE 是一个开源的文件系统增强工具，它让 macOS 可以挂载第三方的文件系统，使得 JuiceFS 客户端可以将文件系统挂载到 macOS 系统中使用。

编译安装：（交叉编译看下方）

go build -ldflags="-s -w" -o ocfs ./cmd

详细文档如下

类 Unix 客户端
编译面向 Linux、macOS、BSD 等类 Unix 系统的客户端需要满足以下依赖：
Go 1.17+
GCC 5.4+
克隆源码
git clone https://github.com/juicedata/juicefs.git
进入源代码目录
cd juicefs
切换分支
源代码默认使用 main 分支，你可以切换到任何正式发布的版本，比如切换到最新发布的v1.0.0-beta2(2022年三月发布)：
git checkout v1.0.0-beta2
注意
开发分支经常涉及较大的变化，请不要将「开发分支」编译的客户端用于生产环境。
执行编译
make
编译好的 juicefs 二进制程序位于当前目录。

使用：

./ocfs format
--storage s3
--bucket http://127.0.0.1:19000/oeosstorage1
--access-key minioadmin
--secret-key minioadmin
redis://localhost:6379/0
myocfs
执行后输出结果如下
2022/05/09 14:28:24.703951 ocfs[13817] : Meta address: redis://localhost [interface.go:385]
2022/05/09 14:28:24.720217 ocfs[13817] : AOF is not enabled, you may lose data if Redis is not shutdown properly. [info.go:83]
2022/05/09 14:28:24.720769 ocfs[13817] : Ping redis: 433.891µs [redis.go:2779]
2022/05/09 14:2挂载文件系统8:24.723073 ocfs[13817] : Data use s3://oeosstorage1/myocfs/ [format.go:410]
2022/05/09 14:28:24.757467 ocfs[13817] : Volume is formatted as {Name:myocfs UUID:5871b0ae-e58c-4f00-bd14-621a57937754
Storage:s3 Bucket:http://127.0.0.1:19000/oeosstorage1 AccessKey:minioadmin SecretKey:removed BlockSize:4096
Compression:none Shards:0 HashPrefix:false Capacity:0 Inodes:0 EncryptKey: KeyEncrypted:true TrashDays:1
MetaVersion:1 MinClientVersion: MaxClientVersion:} [format.go:448]

表示正常启动

挂载文件系统
./ocfs mount redis://localhost:6379/0 mnt

mnt 是要挂载的本地目录，比如/opt/mnt 上面mnt就是挂载到当前目录下的mnt目录上

卸载文件系统

./ocfs umount mnt

如何销毁文件系统

先查找查找文件系统的 UUID

./ocfs status redis://127.0.0.1:6379/0
2022/05/09 14:39:42.183451 ocfs[14491] : Meta address: redis://127.0.0.1:6379/0 [interface.go:385]
2022/05/09 14:39:42.196870 ocfs[14491] : AOF is not enabled, you may lose data if Redis is not shutdown properly. [info.go:83]
2022/05/09 14:39:42.200636 ocfs[14491] : Ping redis: 2.489984ms [redis.go:2779]
{
"Setting": {
"Name": "myocfs",
"UUID": "5871b0ae-e58c-4f00-bd14-621a57937754",
"Storage": "s3",
"Bucket": "http://127.0.0.1:19000/oeosstorage1",
"AccessKey": "minioadmin",
"SecretKey": "removed",
"BlockSize": 4096,
"Compression": "none",
"Shards": 0,
"HashPrefix": false,
"Capacity": 0,
"Inodes": 0,
"KeyEncrypted": true,
"TrashDays": 1,
"MetaVersion": 1,
"MinClientVersion": "",
"MaxClientVersion": ""
},
"Sessions": []
}

./ocfs destroy redis://127.0.0.1:6379/0 5871b0ae-e58c-4f00-bd14-621a57937754

2022/05/09 14:40:20.505001 ocfs[14515] : Meta address: redis://127.0.0.1:6379/0 [interface.go:385]
2022/05/09 14:40:20.506602 ocfs[14515] : AOF is not enabled, you may lose data if Redis is not shutdown properly. [info.go:83]
2022/05/09 14:40:20.506735 ocfs[14515] : Ping redis: 65.505µs [redis.go:2779]
volume name: myocfs
volume UUID: 5871b0ae-e58c-4f00-bd14-621a57937754
data storage: s3://oeosstorage1/myocfs/
used bytes: 83730432
used inodes: 4
WARNING: The target volume will be destoried permanently, including:
WARNING: 1. ALL objects in the data storage: s3://oeosstorage1/myocfs/
WARNING: 2. ALL entries in the metadata engine: redis://127.0.0.1:6379/0
Proceed anyway? [y/N]: y
Deleted objects count: 24
2022/05/09 14:40:25.066583 ocfs[14515] : The volume has been destroyed! You may need to delete cache directory manually. [destroy.go:209]

mac交叉编译到windows

brew install FiloSottile/musl-cross/musl-cross

make juicefs.exe

报错
make juicefs.exe ✹ ✭
GOOS=windows CGO_ENABLED=1 CC=x86_64-w64-mingw32-gcc
go build -ldflags="-s -w -X github.com/juicedata/juicefs/pkg/version.revision=cb51d130 -X github.com/juicedata/juicefs/pkg/version.revisionDate=2022-05-08" -buildmode exe -o juicefs.exe ./cmd

runtime/cgo

cgo: C compiler "x86_64-w64-mingw32-gcc" not found: exec: "x86_64-w64-mingw32-gcc": executable file not found in $PATH

GCC 没有原生 Windows 客户端
但是 cgo 不支持交叉编译，go 支持但是 c 不支持
因为用了cgo 库交叉编译

解决
https://www.macports.org/install.php 装不成功。。。。

查了下 brew也行

brew install mingw-w64

make juicefs.exe

有如下报错
但是编译出来东西了。。。。

mac交叉编译到linux
make juicefs.linux

最终命令就是
CGO_ENABLED=1 GOOS=linux GOARCH=amd64 CC=x86_64-linux-musl-gcc CGO_LDFLAGS="-static" go build -ldflags="-s -w -X github.com/juicedata/juicefs/pkg/version.revision=cb51d130 -X github.com/juicedata/juicefs/pkg/version.revisionDate=2022-05-08" -o juicefs ./cmd