130 lines
3.9 KiB
Go
130 lines
3.9 KiB
Go
package main
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import (
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"fmt"
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"io"
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"reflect"
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"strconv"
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"strings"
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"text/template"
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"time"
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)
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type Options struct {
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Listen string `ini:"listen-address" default:":22000" description:"ip:port to for incoming sync connections"`
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ReadOnly bool `ini:"read-only" description:"Allow changes to the local repository"`
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Delete bool `ini:"allow-delete" default:"true" description:"Allow deletes of files in the local repository"`
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Symlinks bool `ini:"follow-symlinks" default:"true" description:"Follow symbolic links at the top level of the repository"`
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GUI bool `ini:"gui-enabled" default:"true" description:"Enable the HTTP GUI"`
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GUIAddr string `ini:"gui-address" default:"127.0.0.1:8080" description:"ip:port for GUI connections"`
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ExternalServer string `ini:"global-announce-server" default:"syncthing.nym.se:22025" description:"Global server for announcements"`
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ExternalDiscovery bool `ini:"global-announce-enabled" default:"true" description:"Announce to the global announce server"`
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LocalDiscovery bool `ini:"local-announce-enabled" default:"true" description:"Announce to the local network"`
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RequestsInFlight int `ini:"parallell-requests" default:"16" description:"Maximum number of blocks to request in parallell"`
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LimitRate int `ini:"max-send-kbps" description:"Limit outgoing data rate (kbyte/s)"`
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ScanInterval time.Duration `ini:"rescan-interval" default:"60s" description:"Scan repository for changes this often"`
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ConnInterval time.Duration `ini:"reconnection-interval" default:"60s" description:"Attempt to (re)connect to peers this often"`
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MaxChangeBW int `ini:"max-change-bw" default:"1000" description:"Suppress files changing more than this (kbyte/s)"`
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}
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func loadConfig(m map[string]string, data interface{}) error {
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s := reflect.ValueOf(data).Elem()
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t := s.Type()
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for i := 0; i < s.NumField(); i++ {
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f := s.Field(i)
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tag := t.Field(i).Tag
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name := tag.Get("ini")
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if len(name) == 0 {
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name = strings.ToLower(t.Field(i).Name)
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}
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v, ok := m[name]
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if !ok {
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v = tag.Get("default")
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}
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if len(v) > 0 {
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switch f.Interface().(type) {
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case time.Duration:
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d, err := time.ParseDuration(v)
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if err != nil {
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return err
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}
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f.SetInt(int64(d))
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case string:
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f.SetString(v)
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case int:
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i, err := strconv.ParseInt(v, 10, 64)
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if err != nil {
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return err
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}
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f.SetInt(i)
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case bool:
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f.SetBool(v == "true")
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default:
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panic(f.Type())
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}
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}
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}
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return nil
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}
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type cfg struct {
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Key string
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Value string
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Comment string
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}
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func structToValues(data interface{}) []cfg {
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s := reflect.ValueOf(data).Elem()
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t := s.Type()
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var vals []cfg
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for i := 0; i < s.NumField(); i++ {
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f := s.Field(i)
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tag := t.Field(i).Tag
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var c cfg
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c.Key = tag.Get("ini")
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if len(c.Key) == 0 {
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c.Key = strings.ToLower(t.Field(i).Name)
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}
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c.Value = fmt.Sprint(f.Interface())
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c.Comment = tag.Get("description")
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vals = append(vals, c)
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}
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return vals
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}
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var configTemplateStr = `[repository]
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{{if .comments}}; The directory to synchronize. Will be created if it does not exist.
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{{end}}dir = {{.dir}}
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[nodes]
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{{if .comments}}; Map of node ID to addresses, or "dynamic" for automatic discovery. Examples:
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; J3MZ4G5O4CLHJKB25WX47K5NUJUWDOLO2TTNY3TV3NRU4HVQRKEQ = 172.16.32.24:22000
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; ZNJZRXQKYHF56A2VVNESRZ6AY4ZOWGFJCV6FXDZJUTRVR3SNBT6Q = dynamic
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{{end}}{{range $n, $a := .nodes}}{{$n}} = {{$a}}
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{{end}}
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[settings]
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{{range $v := .settings}}; {{$v.Comment}}
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{{$v.Key}} = {{$v.Value}}
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{{end}}
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`
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var configTemplate = template.Must(template.New("config").Parse(configTemplateStr))
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func writeConfig(wr io.Writer, dir string, nodes map[string]string, opts Options, comments bool) {
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configTemplate.Execute(wr, map[string]interface{}{
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"dir": dir,
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"nodes": nodes,
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"settings": structToValues(&opts),
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"comments": comments,
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})
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}
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