mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2025-06-07 09:25:23 +08:00
Make fuse command linux/MacOS only (#6811)
This commit is contained in:
Weihao Jiang
GitHub
parent
2e1506c31e
commit
ea70d17c5f
@ -1,269 +1,9 @@
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package command
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import (
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"fmt"
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"math"
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"os"
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"os/signal"
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"strconv"
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"strings"
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"syscall"
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"time"
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)
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func init() {
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cmdFuse.Run = runFuse // break init cycle
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}
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type parameter struct {
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name string
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value string
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}
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func runFuse(cmd *Command, args []string) bool {
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rawArgs := strings.Join(args, " ")
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rawArgsLen := len(rawArgs)
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option := strings.Builder{}
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options := []parameter{}
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masterProcess := true
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fusermountPath := ""
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// first parameter
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i := 0
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for i = 0; i < rawArgsLen && rawArgs[i] != ' '; i++ {
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option.WriteByte(rawArgs[i])
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}
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options = append(options, parameter{"arg0", option.String()})
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option.Reset()
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for i++; i < rawArgsLen; i++ {
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// space separator check for filled option
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if rawArgs[i] == ' ' {
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if option.Len() > 0 {
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options = append(options, parameter{option.String(), "true"})
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option.Reset()
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}
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// dash separator read option until next space
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} else if rawArgs[i] == '-' {
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for i++; i < rawArgsLen && rawArgs[i] != ' '; i++ {
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option.WriteByte(rawArgs[i])
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}
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// ignore "-o"
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if option.String() != "o" {
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options = append(options, parameter{option.String(), "true"})
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}
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option.Reset()
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// equal separator start option with pending value
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} else if rawArgs[i] == '=' {
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name := option.String()
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option.Reset()
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for i++; i < rawArgsLen && rawArgs[i] != ',' && rawArgs[i] != ' '; i++ {
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// double quote separator read option until next double quote
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if rawArgs[i] == '"' {
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for i++; i < rawArgsLen && rawArgs[i] != '"'; i++ {
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option.WriteByte(rawArgs[i])
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}
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// single quote separator read option until next single quote
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} else if rawArgs[i] == '\'' {
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for i++; i < rawArgsLen && rawArgs[i] != '\''; i++ {
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option.WriteByte(rawArgs[i])
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}
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// add chars before comma
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} else if rawArgs[i] != ' ' {
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option.WriteByte(rawArgs[i])
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}
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}
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options = append(options, parameter{name, option.String()})
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option.Reset()
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// comma separator just read current option
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} else if rawArgs[i] == ',' {
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options = append(options, parameter{option.String(), "true"})
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option.Reset()
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// what is not a separator fill option buffer
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} else {
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option.WriteByte(rawArgs[i])
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}
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}
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// get residual option data
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if option.Len() > 0 {
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// add value to pending option
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options = append(options, parameter{option.String(), "true"})
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option.Reset()
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}
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// scan each parameter
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for i := 0; i < len(options); i++ {
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parameter := options[i]
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switch parameter.name {
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case "child":
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masterProcess = false
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if parsed, err := strconv.ParseInt(parameter.value, 10, 64); err == nil {
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if parsed > math.MaxInt || parsed <= 0 {
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panic(fmt.Errorf("parent PID %d is invalid", parsed))
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}
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mountOptions.fuseCommandPid = int(parsed)
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} else {
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panic(fmt.Errorf("parent PID %s is invalid: %w", parameter.value, err))
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}
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case "arg0":
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mountOptions.dir = ¶meter.value
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case "filer":
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mountOptions.filer = ¶meter.value
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case "filer.path":
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mountOptions.filerMountRootPath = ¶meter.value
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case "dirAutoCreate":
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if parsed, err := strconv.ParseBool(parameter.value); err == nil {
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mountOptions.dirAutoCreate = &parsed
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} else {
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panic(fmt.Errorf("dirAutoCreate: %s", err))
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}
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case "collection":
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mountOptions.collection = ¶meter.value
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case "replication":
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mountOptions.replication = ¶meter.value
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case "disk":
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mountOptions.diskType = ¶meter.value
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case "ttl":
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if parsed, err := strconv.ParseInt(parameter.value, 0, 32); err == nil {
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intValue := int(parsed)
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mountOptions.ttlSec = &intValue
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} else {
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panic(fmt.Errorf("ttl: %s", err))
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}
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case "chunkSizeLimitMB":
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if parsed, err := strconv.ParseInt(parameter.value, 0, 32); err == nil {
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intValue := int(parsed)
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mountOptions.chunkSizeLimitMB = &intValue
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} else {
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panic(fmt.Errorf("chunkSizeLimitMB: %s", err))
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}
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case "concurrentWriters":
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i++
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if parsed, err := strconv.ParseInt(parameter.value, 0, 32); err == nil {
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intValue := int(parsed)
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mountOptions.concurrentWriters = &intValue
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} else {
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panic(fmt.Errorf("concurrentWriters: %s", err))
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}
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case "cacheDir":
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mountOptions.cacheDirForRead = ¶meter.value
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case "cacheCapacityMB":
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if parsed, err := strconv.ParseInt(parameter.value, 0, 64); err == nil {
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mountOptions.cacheSizeMBForRead = &parsed
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} else {
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panic(fmt.Errorf("cacheCapacityMB: %s", err))
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}
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case "cacheDirWrite":
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mountOptions.cacheDirForWrite = ¶meter.value
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case "dataCenter":
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mountOptions.dataCenter = ¶meter.value
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case "allowOthers":
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if parsed, err := strconv.ParseBool(parameter.value); err == nil {
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mountOptions.allowOthers = &parsed
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} else {
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panic(fmt.Errorf("allowOthers: %s", err))
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}
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case "umask":
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mountOptions.umaskString = ¶meter.value
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case "nonempty":
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if parsed, err := strconv.ParseBool(parameter.value); err == nil {
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mountOptions.nonempty = &parsed
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} else {
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panic(fmt.Errorf("nonempty: %s", err))
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}
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case "volumeServerAccess":
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mountOptions.volumeServerAccess = ¶meter.value
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case "map.uid":
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mountOptions.uidMap = ¶meter.value
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case "map.gid":
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mountOptions.gidMap = ¶meter.value
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case "readOnly":
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if parsed, err := strconv.ParseBool(parameter.value); err == nil {
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mountOptions.readOnly = &parsed
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} else {
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panic(fmt.Errorf("readOnly: %s", err))
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}
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case "cpuprofile":
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mountCpuProfile = ¶meter.value
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case "memprofile":
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mountMemProfile = ¶meter.value
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case "readRetryTime":
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if parsed, err := time.ParseDuration(parameter.value); err == nil {
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mountReadRetryTime = &parsed
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} else {
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panic(fmt.Errorf("readRetryTime: %s", err))
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}
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case "fusermount.path":
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fusermountPath = parameter.value
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default:
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t := parameter.name
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if parameter.value != "true" {
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t = fmt.Sprintf("%s=%s", parameter.name, parameter.value)
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}
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mountOptions.extraOptions = append(mountOptions.extraOptions, t)
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}
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}
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// the master start the child, release it then finish himself
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if masterProcess {
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arg0, err := os.Executable()
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if err != nil {
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panic(err)
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}
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// pass our PID to the child process
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pid := os.Getpid()
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argv := append(os.Args, "-o", "child="+strconv.Itoa(pid))
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c := make(chan os.Signal, 1)
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signal.Notify(c, syscall.SIGTERM)
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attr := os.ProcAttr{}
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attr.Env = os.Environ()
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child, err := os.StartProcess(arg0, argv, &attr)
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if err != nil {
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panic(fmt.Errorf("master process can not start child process: %s", err))
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}
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err = child.Release()
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if err != nil {
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panic(fmt.Errorf("master process can not release child process: %s", err))
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}
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select {
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case <-c:
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return true
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}
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}
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if fusermountPath != "" {
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if err := os.Setenv("PATH", fusermountPath); err != nil {
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panic(fmt.Errorf("setenv: %s", err))
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}
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} else if os.Getenv("PATH") == "" {
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if err := os.Setenv("PATH", "/bin:/sbin:/usr/bin:/usr/sbin"); err != nil {
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panic(fmt.Errorf("setenv: %s", err))
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}
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}
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// just call "weed mount" command
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return runMount(cmdMount, []string{})
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}
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var cmdFuse = &Command{
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UsageLine: "fuse /mnt/mount/point -o \"filer=localhost:8888,filer.path=/\"",
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Short: "Allow use weed with linux's mount command",
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15
weed/command/fuse_notsupported.go
Normal file
15
weed/command/fuse_notsupported.go
Normal file
@ -0,0 +1,15 @@
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//go:build !linux && !darwin
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// +build !linux,!darwin
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package command
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import (
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"fmt"
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"runtime"
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)
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func runFuse(cmd *Command, args []string) bool {
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fmt.Printf("Fuse is not supported on %s %s\n", runtime.GOOS, runtime.GOARCH)
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return true
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}
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264
weed/command/fuse_std.go
Normal file
264
weed/command/fuse_std.go
Normal file
@ -0,0 +1,264 @@
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//go:build linux || darwin
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// +build linux darwin
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package command
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import (
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"fmt"
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"math"
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"os"
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"os/signal"
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"strconv"
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"strings"
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"syscall"
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"time"
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)
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type parameter struct {
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name string
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value string
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}
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func runFuse(cmd *Command, args []string) bool {
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rawArgs := strings.Join(args, " ")
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rawArgsLen := len(rawArgs)
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option := strings.Builder{}
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options := []parameter{}
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masterProcess := true
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fusermountPath := ""
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// first parameter
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i := 0
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for i = 0; i < rawArgsLen && rawArgs[i] != ' '; i++ {
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option.WriteByte(rawArgs[i])
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}
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options = append(options, parameter{"arg0", option.String()})
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option.Reset()
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for i++; i < rawArgsLen; i++ {
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// space separator check for filled option
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if rawArgs[i] == ' ' {
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if option.Len() > 0 {
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options = append(options, parameter{option.String(), "true"})
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option.Reset()
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}
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// dash separator read option until next space
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} else if rawArgs[i] == '-' {
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for i++; i < rawArgsLen && rawArgs[i] != ' '; i++ {
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option.WriteByte(rawArgs[i])
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}
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// ignore "-o"
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if option.String() != "o" {
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options = append(options, parameter{option.String(), "true"})
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}
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option.Reset()
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// equal separator start option with pending value
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} else if rawArgs[i] == '=' {
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name := option.String()
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option.Reset()
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for i++; i < rawArgsLen && rawArgs[i] != ',' && rawArgs[i] != ' '; i++ {
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// double quote separator read option until next double quote
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if rawArgs[i] == '"' {
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for i++; i < rawArgsLen && rawArgs[i] != '"'; i++ {
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option.WriteByte(rawArgs[i])
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}
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// single quote separator read option until next single quote
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} else if rawArgs[i] == '\'' {
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for i++; i < rawArgsLen && rawArgs[i] != '\''; i++ {
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option.WriteByte(rawArgs[i])
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}
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// add chars before comma
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} else if rawArgs[i] != ' ' {
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option.WriteByte(rawArgs[i])
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}
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}
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options = append(options, parameter{name, option.String()})
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option.Reset()
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// comma separator just read current option
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} else if rawArgs[i] == ',' {
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options = append(options, parameter{option.String(), "true"})
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option.Reset()
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// what is not a separator fill option buffer
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} else {
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option.WriteByte(rawArgs[i])
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}
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}
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// get residual option data
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if option.Len() > 0 {
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// add value to pending option
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options = append(options, parameter{option.String(), "true"})
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option.Reset()
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}
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// scan each parameter
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for i := 0; i < len(options); i++ {
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parameter := options[i]
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switch parameter.name {
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case "child":
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masterProcess = false
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if parsed, err := strconv.ParseInt(parameter.value, 10, 64); err == nil {
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if parsed > math.MaxInt || parsed <= 0 {
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panic(fmt.Errorf("parent PID %d is invalid", parsed))
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}
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mountOptions.fuseCommandPid = int(parsed)
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} else {
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panic(fmt.Errorf("parent PID %s is invalid: %w", parameter.value, err))
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}
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case "arg0":
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mountOptions.dir = ¶meter.value
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case "filer":
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mountOptions.filer = ¶meter.value
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case "filer.path":
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mountOptions.filerMountRootPath = ¶meter.value
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case "dirAutoCreate":
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if parsed, err := strconv.ParseBool(parameter.value); err == nil {
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mountOptions.dirAutoCreate = &parsed
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} else {
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panic(fmt.Errorf("dirAutoCreate: %s", err))
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}
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case "collection":
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mountOptions.collection = ¶meter.value
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case "replication":
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mountOptions.replication = ¶meter.value
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case "disk":
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mountOptions.diskType = ¶meter.value
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case "ttl":
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if parsed, err := strconv.ParseInt(parameter.value, 0, 32); err == nil {
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intValue := int(parsed)
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mountOptions.ttlSec = &intValue
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} else {
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panic(fmt.Errorf("ttl: %s", err))
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}
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case "chunkSizeLimitMB":
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if parsed, err := strconv.ParseInt(parameter.value, 0, 32); err == nil {
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intValue := int(parsed)
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mountOptions.chunkSizeLimitMB = &intValue
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} else {
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panic(fmt.Errorf("chunkSizeLimitMB: %s", err))
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}
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case "concurrentWriters":
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i++
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if parsed, err := strconv.ParseInt(parameter.value, 0, 32); err == nil {
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intValue := int(parsed)
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mountOptions.concurrentWriters = &intValue
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} else {
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panic(fmt.Errorf("concurrentWriters: %s", err))
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}
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case "cacheDir":
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mountOptions.cacheDirForRead = ¶meter.value
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case "cacheCapacityMB":
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if parsed, err := strconv.ParseInt(parameter.value, 0, 64); err == nil {
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mountOptions.cacheSizeMBForRead = &parsed
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} else {
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panic(fmt.Errorf("cacheCapacityMB: %s", err))
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}
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case "cacheDirWrite":
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mountOptions.cacheDirForWrite = ¶meter.value
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case "dataCenter":
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mountOptions.dataCenter = ¶meter.value
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case "allowOthers":
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if parsed, err := strconv.ParseBool(parameter.value); err == nil {
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mountOptions.allowOthers = &parsed
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} else {
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panic(fmt.Errorf("allowOthers: %s", err))
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}
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case "umask":
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mountOptions.umaskString = ¶meter.value
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case "nonempty":
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if parsed, err := strconv.ParseBool(parameter.value); err == nil {
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mountOptions.nonempty = &parsed
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} else {
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panic(fmt.Errorf("nonempty: %s", err))
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}
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case "volumeServerAccess":
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mountOptions.volumeServerAccess = ¶meter.value
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case "map.uid":
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mountOptions.uidMap = ¶meter.value
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case "map.gid":
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mountOptions.gidMap = ¶meter.value
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case "readOnly":
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if parsed, err := strconv.ParseBool(parameter.value); err == nil {
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mountOptions.readOnly = &parsed
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} else {
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panic(fmt.Errorf("readOnly: %s", err))
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}
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case "cpuprofile":
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mountCpuProfile = ¶meter.value
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case "memprofile":
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mountMemProfile = ¶meter.value
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case "readRetryTime":
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if parsed, err := time.ParseDuration(parameter.value); err == nil {
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mountReadRetryTime = &parsed
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} else {
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panic(fmt.Errorf("readRetryTime: %s", err))
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}
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case "fusermount.path":
|
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fusermountPath = parameter.value
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default:
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t := parameter.name
|
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if parameter.value != "true" {
|
||||
t = fmt.Sprintf("%s=%s", parameter.name, parameter.value)
|
||||
}
|
||||
mountOptions.extraOptions = append(mountOptions.extraOptions, t)
|
||||
}
|
||||
}
|
||||
|
||||
// the master start the child, release it then finish himself
|
||||
if masterProcess {
|
||||
arg0, err := os.Executable()
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
|
||||
// pass our PID to the child process
|
||||
pid := os.Getpid()
|
||||
argv := append(os.Args, "-o", "child="+strconv.Itoa(pid))
|
||||
|
||||
c := make(chan os.Signal, 1)
|
||||
signal.Notify(c, syscall.SIGTERM)
|
||||
|
||||
attr := os.ProcAttr{}
|
||||
attr.Env = os.Environ()
|
||||
|
||||
child, err := os.StartProcess(arg0, argv, &attr)
|
||||
|
||||
if err != nil {
|
||||
panic(fmt.Errorf("master process can not start child process: %s", err))
|
||||
}
|
||||
|
||||
err = child.Release()
|
||||
|
||||
if err != nil {
|
||||
panic(fmt.Errorf("master process can not release child process: %s", err))
|
||||
}
|
||||
|
||||
select {
|
||||
case <-c:
|
||||
return true
|
||||
}
|
||||
}
|
||||
|
||||
if fusermountPath != "" {
|
||||
if err := os.Setenv("PATH", fusermountPath); err != nil {
|
||||
panic(fmt.Errorf("setenv: %s", err))
|
||||
}
|
||||
} else if os.Getenv("PATH") == "" {
|
||||
if err := os.Setenv("PATH", "/bin:/sbin:/usr/bin:/usr/sbin"); err != nil {
|
||||
panic(fmt.Errorf("setenv: %s", err))
|
||||
}
|
||||
}
|
||||
|
||||
// just call "weed mount" command
|
||||
return runMount(cmdMount, []string{})
|
||||
}
|
||||
@ -271,7 +271,7 @@ func RunMount(option *MountOptions, umask os.FileMode) bool {
|
||||
|
||||
if mountOptions.fuseCommandPid != 0 {
|
||||
// send a signal to the parent process to notify that the mount is ready
|
||||
err = syscall.Kill(mountOptions.fuseCommandPid, syscall.SIGUSR1)
|
||||
err = syscall.Kill(mountOptions.fuseCommandPid, syscall.SIGTERM)
|
||||
if err != nil {
|
||||
fmt.Printf("failed to notify parent process: %v\n", err)
|
||||
return false
|
||||
|
||||
Loading…
Reference in New Issue
Block a user