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222 lines
6.2 KiB
222 lines
6.2 KiB
package command
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import (
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"fmt"
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"strings"
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"strconv"
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"time"
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"os"
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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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// 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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options = append(options, parameter{option.String(), "true"})
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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] != ','; 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 "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.cacheDir = ¶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.cacheSizeMB = &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 "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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}
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}
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// I don't know why PATH environment variable is lost
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if err := os.Setenv("PATH", "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin"); err != nil {
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panic(fmt.Errorf("setenv: %s", err))
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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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Long: `Allow use weed with linux's mount command
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You can use -t weed on mount command:
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mv weed /sbin/mount.weed
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mount -t weed fuse /mnt -o "filer=localhost:8888,filer.path=/"
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Or you can use -t fuse on mount command:
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mv weed /sbin/weed
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mount -t fuse.weed fuse /mnt -o "filer=localhost:8888,filer.path=/"
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mount -t fuse "weed#fuse" /mnt -o "filer=localhost:8888,filer.path=/"
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To use without mess with your /sbin:
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mount -t fuse./home/user/bin/weed fuse /mnt -o "filer=localhost:8888,filer.path=/"
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mount -t fuse "/home/user/bin/weed#fuse" /mnt -o "filer=localhost:8888,filer.path=/"
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To pass more than one parameter use quotes, example:
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mount -t weed fuse /mnt -o "filer='192.168.0.1:8888,192.168.0.2:8888',filer.path=/"
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To check valid options look "weed mount --help"
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`,
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}
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