github.com/minio/mc@v0.0.0-20240507152021-646712d5e5fb/pkg/disk/stat_darwin.go (about)

     1  //go:build darwin
     2  // +build darwin
     3  
     4  // Copyright (c) 2015-2021 MinIO, Inc.
     5  //
     6  // This file is part of MinIO Object Storage stack
     7  //
     8  // This program is free software: you can redistribute it and/or modify
     9  // it under the terms of the GNU Affero General Public License as published by
    10  // the Free Software Foundation, either version 3 of the License, or
    11  // (at your option) any later version.
    12  //
    13  // This program is distributed in the hope that it will be useful
    14  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    15  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    16  // GNU Affero General Public License for more details.
    17  //
    18  // You should have received a copy of the GNU Affero General Public License
    19  // along with this program.  If not, see <http://www.gnu.org/licenses/>.
    20  
    21  package disk
    22  
    23  import (
    24  	"os/user"
    25  	"strconv"
    26  	"strings"
    27  	"syscall"
    28  )
    29  
    30  // GetFileSystemAttrs return the file system attribute as string; containing mode,
    31  // uid, gid, uname, Gname, atime, mtime, ctime and md5
    32  func GetFileSystemAttrs(file string) (string, error) {
    33  	st := syscall.Stat_t{}
    34  	err := syscall.Stat(file, &st)
    35  	if err != nil {
    36  		return "", err
    37  	}
    38  
    39  	var fileAttr strings.Builder
    40  	fileAttr.WriteString("atime:")
    41  	fileAttr.WriteString(strconv.FormatInt(st.Atimespec.Sec, 10) + "#" + strconv.FormatInt(st.Atimespec.Nsec, 10))
    42  	fileAttr.WriteString("/gid:")
    43  	fileAttr.WriteString(strconv.Itoa(int(st.Gid)))
    44  
    45  	g, err := user.LookupGroupId(strconv.FormatUint(uint64(st.Gid), 10))
    46  	if err == nil {
    47  		fileAttr.WriteString("/gname:")
    48  		fileAttr.WriteString(g.Name)
    49  	}
    50  
    51  	fileAttr.WriteString("/mode:")
    52  	fileAttr.WriteString(strconv.Itoa(int(st.Mode)))
    53  	fileAttr.WriteString("/mtime:")
    54  	fileAttr.WriteString(strconv.FormatInt(st.Mtimespec.Sec, 10) + "#" + strconv.FormatInt(st.Mtimespec.Nsec, 10))
    55  	fileAttr.WriteString("/uid:")
    56  	fileAttr.WriteString(strconv.Itoa(int(st.Uid)))
    57  
    58  	u, err := user.LookupId(strconv.FormatUint(uint64(st.Uid), 10))
    59  	if err == nil {
    60  		fileAttr.WriteString("/uname:")
    61  		fileAttr.WriteString(u.Username)
    62  	}
    63  
    64  	return fileAttr.String(), nil
    65  }