97 lines
2.1 KiB
Go
97 lines
2.1 KiB
Go
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// +build ignore
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package main
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import (
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"encoding/hex"
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"encoding/json"
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"fmt"
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"io/ioutil"
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"os"
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"strings"
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"text/template"
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"time"
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"tinygo.org/x/bluetooth"
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)
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type Characteristic struct {
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Name string `json:"name"`
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Identifier string `json:"identifier"`
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UUID string `json:"uuid"`
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Source string `json:"source"`
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}
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func (c Characteristic) VarName() string {
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str := strings.ReplaceAll(c.Name, "Characteristic", "")
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str = strings.ReplaceAll(str, ":", "")
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str = strings.ReplaceAll(str, "-", "")
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str = strings.ReplaceAll(str, "(", "")
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str = strings.ReplaceAll(str, ")", "")
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str = strings.ReplaceAll(str, "/", "")
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str = strings.Title(str)
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return strings.ReplaceAll(str, " ", "")
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}
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func (c Characteristic) UUIDFunc() string {
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if len(c.UUID) == 4 {
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return "New16BitUUID(0x" + c.UUID + ")"
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}
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uuid, err := bluetooth.ParseUUID(strings.ToLower(c.UUID))
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if err != nil {
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panic(err)
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}
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b := uuid.Bytes()
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bs := hex.EncodeToString(b[:])
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bss := ""
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for i := 0; i < len(bs); i += 2 {
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bss = "0x" + bs[i:i+2] + "," + bss
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}
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return "NewUUID([16]byte{" + bss + "})"
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}
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func main() {
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jsonFile, err := os.Open("data/characteristic_uuids.json")
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if err != nil {
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fmt.Println(err)
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}
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defer jsonFile.Close()
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data, _ := ioutil.ReadAll(jsonFile)
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var characteristics []Characteristic
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json.Unmarshal(data, &characteristics)
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f, err := os.Create("characteristic_uuids.go")
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if err != nil {
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fmt.Println(err)
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return
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}
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defer f.Close()
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packageTemplate := template.Must(template.New("").Parse(tmpl))
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packageTemplate.Execute(f, struct {
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Timestamp time.Time
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Characteristics []Characteristic
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}{
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Timestamp: time.Now(),
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Characteristics: characteristics,
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})
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}
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var tmpl = `// Code generated by bin/gen-characteristic-uuids; DO NOT EDIT.
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// This file was generated on {{.Timestamp}} using the list of standard characteristics UUIDs from
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// https://github.com/NordicSemiconductor/bluetooth-numbers-database/blob/master/v1/characteristics_uuids.json
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//
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package bluetooth
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var (
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{{ range .Characteristics }}
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// CharacteristicUUID{{.VarName}} - {{.Name}}
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CharacteristicUUID{{.VarName}} = {{.UUIDFunc}}
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{{ end }}
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)
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`
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