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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build ignore
// detect attempts to autodetect the correct
// values of the environment variables
// used by go_darwin_arm_exec.
// detect shells out to ideviceinfo, a third party program that can
// be obtained by following the instructions at
// https://github.com/libimobiledevice/libimobiledevice.
package main
import (
"bytes"
"fmt"
"io/ioutil"
"os"
"os/exec"
"strings"
)
func main() {
devID := detectDevID()
fmt.Printf("export GOIOS_DEV_ID=%s\n", devID)
udid := detectUDID()
mp := detectMobileProvisionFile(udid)
f, err := ioutil.TempFile("", "go_ios_detect_")
check(err)
fname := f.Name()
defer os.Remove(fname)
out := combinedOutput(parseMobileProvision(mp))
_, err = f.Write(out)
check(err)
check(f.Close())
appID, err := plistExtract(fname, "ApplicationIdentifierPrefix:0")
check(err)
fmt.Printf("export GOIOS_APP_ID=%s\n", appID)
teamID, err := plistExtract(fname, "Entitlements:com.apple.developer.team-identifier")
check(err)
fmt.Printf("export GOIOS_TEAM_ID=%s\n", teamID)
}
func detectDevID() string {
cmd := exec.Command("security", "find-identity", "-p", "codesigning", "-v")
lines := getLines(cmd)
for _, line := range lines {
if !bytes.Contains(line, []byte("iPhone Developer")) {
continue
}
if bytes.Contains(line, []byte("REVOKED")) {
continue
}
fields := bytes.Fields(line)
return string(fields[1])
}
fail("no code signing identity found")
panic("unreachable")
}
var udidPrefix = []byte("UniqueDeviceID: ")
func detectUDID() []byte {
cmd := exec.Command("ideviceinfo")
lines := getLines(cmd)
for _, line := range lines {
if bytes.HasPrefix(line, udidPrefix) {
return bytes.TrimPrefix(line, udidPrefix)
}
}
fail("udid not found; is the device connected?")
panic("unreachable")
}
func detectMobileProvisionFile(udid []byte) string {
cmd := exec.Command("mdfind", "-name", ".mobileprovision")
lines := getLines(cmd)
for _, line := range lines {
if len(line) == 0 {
continue
}
xmlLines := getLines(parseMobileProvision(string(line)))
for _, xmlLine := range xmlLines {
if bytes.Contains(xmlLine, udid) {
return string(line)
}
}
}
fail("did not find mobile provision matching device udid %s", udid)
panic("ureachable")
}
func parseMobileProvision(fname string) *exec.Cmd {
return exec.Command("security", "cms", "-D", "-i", string(fname))
}
func plistExtract(fname string, path string) ([]byte, error) {
out, err := exec.Command("/usr/libexec/PlistBuddy", "-c", "Print "+path, fname).CombinedOutput()
if err != nil {
return nil, err
}
return bytes.TrimSpace(out), nil
}
func getLines(cmd *exec.Cmd) [][]byte {
out := combinedOutput(cmd)
return bytes.Split(out, []byte("\n"))
}
func combinedOutput(cmd *exec.Cmd) []byte {
out, err := cmd.CombinedOutput()
if err != nil {
fmt.Println(strings.Join(cmd.Args, "\n"))
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
return out
}
func check(err error) {
if err != nil {
fail(err.Error())
}
}
func fail(msg string, v ...interface{}) {
fmt.Fprintf(os.Stderr, msg, v...)
fmt.Fprintln(os.Stderr)
os.Exit(1)
}
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