mirror of
https://github.com/golang/go
synced 2024-11-11 17:11:36 -07:00
misc/ios: rework exec wrapper to only support simulator
This updates the tools used to execute Go binaries on the Apple iOS Simulator to (a) work with newer arm64 macOS, (b) remove support for running binaries on physical devices, and (c) remove the reliance on LLDB and third-party Python packages. This makes the wrapper somewhat simpler, and easier to understand and maintain. Additionally clangwrap.sh is updated to reflect dropping support for targeting physical devices. This smoothes out the path for #66360. Change-Id: I769127e65f5e8c6c727841168890fd8557fb0e1d Reviewed-on: https://go-review.googlesource.com/c/go/+/573175 Reviewed-by: Michael Knyszek <mknyszek@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Cherry Mui <cherryyz@google.com>
This commit is contained in:
Roland Shoemaker
parent
e44fa1c1a9
commit
4cf2b02548
@ -1,19 +1,22 @@
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#!/bin/sh
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# This uses the latest available iOS SDK, which is recommended.
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# To select a specific SDK, run 'xcodebuild -showsdks'
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# to see the available SDKs and replace iphoneos with one of them.
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# This script configures clang to target the iOS simulator. If you'd like to
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# build for real iOS devices, change SDK to "iphoneos" and PLATFORM to "ios".
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# This uses the latest available iOS SDK, which is recommended. To select a
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# specific SDK, run 'xcodebuild -showsdks' to see the available SDKs and replace
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# iphonesimulator with one of them.
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SDK=iphonesimulator
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PLATFORM=ios-simulator
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if [ "$GOARCH" == "arm64" ]; then
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SDK=iphoneos
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PLATFORM=ios
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CLANGARCH="arm64"
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else
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SDK=iphonesimulator
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PLATFORM=ios-simulator
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CLANGARCH="x86_64"
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fi
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SDK_PATH=`xcrun --sdk $SDK --show-sdk-path`
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export IPHONEOS_DEPLOYMENT_TARGET=5.1
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# cmd/cgo doesn't support llvm-gcc-4.2, so we have to use clang.
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CLANG=`xcrun --sdk $SDK --find clang`
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@ -1,44 +1,21 @@
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// Copyright 2015 The Go Authors. All rights reserved.
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// Copyright 2024 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// This program can be used as go_ios_$GOARCH_exec by the Go tool.
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// It executes binaries on an iOS device using the XCode toolchain
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// and the ios-deploy program: https://github.com/phonegap/ios-deploy
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//
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// This script supports an extra flag, -lldb, that pauses execution
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// just before the main program begins and allows the user to control
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// the remote lldb session. This flag is appended to the end of the
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// script's arguments and is not passed through to the underlying
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// binary.
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//
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// This script requires that three environment variables be set:
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//
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// GOIOS_DEV_ID: The codesigning developer id or certificate identifier
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// GOIOS_APP_ID: The provisioning app id prefix. Must support wildcard app ids.
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// GOIOS_TEAM_ID: The team id that owns the app id prefix.
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//
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// $GOROOT/misc/ios contains a script, detect.go, that attempts to autodetect these.
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// This program can be used as go_ios_$GOARCH_exec by the Go tool. It executes
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// binaries on the iOS Simulator using the XCode toolchain.
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package main
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import (
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"bytes"
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"encoding/xml"
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"errors"
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"fmt"
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"go/build"
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"io"
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"log"
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"net"
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"os"
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"os/exec"
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"os/signal"
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"path/filepath"
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"runtime"
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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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const debug = false
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@ -110,18 +87,8 @@ func runMain() (int, error) {
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return 1, err
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}
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if goarch := os.Getenv("GOARCH"); goarch == "arm64" {
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err = runOnDevice(appdir)
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} else {
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err = runOnSimulator(appdir)
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}
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err = runOnSimulator(appdir)
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if err != nil {
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// If the lldb driver completed with an exit code, use that.
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if err, ok := err.(*exec.ExitError); ok {
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if ws, ok := err.Sys().(interface{ ExitStatus() int }); ok {
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return ws.ExitStatus(), nil
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}
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}
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return 1, err
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}
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return 0, nil
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@ -135,61 +102,6 @@ func runOnSimulator(appdir string) error {
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return runSimulator(appdir, bundleID, os.Args[2:])
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}
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func runOnDevice(appdir string) error {
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// e.g. B393DDEB490947F5A463FD074299B6C0AXXXXXXX
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devID = getenv("GOIOS_DEV_ID")
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// e.g. Z8B3JBXXXX.org.golang.sample, Z8B3JBXXXX prefix is available at
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// https://developer.apple.com/membercenter/index.action#accountSummary as Team ID.
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appID = getenv("GOIOS_APP_ID")
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// e.g. Z8B3JBXXXX, available at
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// https://developer.apple.com/membercenter/index.action#accountSummary as Team ID.
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teamID = getenv("GOIOS_TEAM_ID")
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// Device IDs as listed with ios-deploy -c.
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deviceID = os.Getenv("GOIOS_DEVICE_ID")
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if _, id, ok := strings.Cut(appID, "."); ok {
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bundleID = id
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}
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if err := signApp(appdir); err != nil {
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return err
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}
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if err := uninstallDevice(bundleID); err != nil {
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return err
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}
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if err := installDevice(appdir); err != nil {
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return err
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}
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if err := mountDevImage(); err != nil {
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return err
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}
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// Kill any hanging debug bridges that might take up port 3222.
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exec.Command("killall", "idevicedebugserverproxy").Run()
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closer, err := startDebugBridge()
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if err != nil {
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return err
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}
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defer closer()
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return runDevice(appdir, bundleID, os.Args[2:])
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}
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func getenv(envvar string) string {
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s := os.Getenv(envvar)
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if s == "" {
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log.Fatalf("%s not set\nrun $GOROOT/misc/ios/detect.go to attempt to autodetect", envvar)
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}
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return s
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}
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func assembleApp(appdir, bin string) error {
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if err := os.MkdirAll(appdir, 0755); err != nil {
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return err
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@ -217,236 +129,6 @@ func assembleApp(appdir, bin string) error {
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return nil
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}
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func signApp(appdir string) error {
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entitlementsPath := filepath.Join(tmpdir, "Entitlements.plist")
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cmd := exec.Command(
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"codesign",
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"-f",
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"-s", devID,
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"--entitlements", entitlementsPath,
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appdir,
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)
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if debug {
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log.Println(strings.Join(cmd.Args, " "))
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}
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cmd.Stdout = os.Stdout
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cmd.Stderr = os.Stderr
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if err := cmd.Run(); err != nil {
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return fmt.Errorf("codesign: %v", err)
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}
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return nil
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}
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// mountDevImage ensures a developer image is mounted on the device.
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// The image contains the device lldb server for idevicedebugserverproxy
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// to connect to.
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func mountDevImage() error {
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// Check for existing mount.
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cmd := idevCmd(exec.Command("ideviceimagemounter", "-l", "-x"))
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out, err := cmd.CombinedOutput()
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if err != nil {
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os.Stderr.Write(out)
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return fmt.Errorf("ideviceimagemounter: %v", err)
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}
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var info struct {
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Dict struct {
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Data []byte `xml:",innerxml"`
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} `xml:"dict"`
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}
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if err := xml.Unmarshal(out, &info); err != nil {
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return fmt.Errorf("mountDevImage: failed to decode mount information: %v", err)
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}
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dict, err := parsePlistDict(info.Dict.Data)
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if err != nil {
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return fmt.Errorf("mountDevImage: failed to parse mount information: %v", err)
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}
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if dict["ImagePresent"] == "true" && dict["Status"] == "Complete" {
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return nil
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}
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// Some devices only give us an ImageSignature key.
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if _, exists := dict["ImageSignature"]; exists {
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return nil
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}
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// No image is mounted. Find a suitable image.
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imgPath, err := findDevImage()
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if err != nil {
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return err
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}
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sigPath := imgPath + ".signature"
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cmd = idevCmd(exec.Command("ideviceimagemounter", imgPath, sigPath))
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if out, err := cmd.CombinedOutput(); err != nil {
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os.Stderr.Write(out)
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return fmt.Errorf("ideviceimagemounter: %v", err)
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}
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return nil
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}
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// findDevImage use the device iOS version and build to locate a suitable
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// developer image.
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func findDevImage() (string, error) {
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cmd := idevCmd(exec.Command("ideviceinfo"))
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out, err := cmd.Output()
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if err != nil {
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return "", fmt.Errorf("ideviceinfo: %v", err)
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}
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var iosVer, buildVer string
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lines := bytes.Split(out, []byte("\n"))
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for _, line := range lines {
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key, val, ok := strings.Cut(string(line), ": ")
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if !ok {
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continue
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}
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switch key {
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case "ProductVersion":
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iosVer = val
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case "BuildVersion":
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buildVer = val
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}
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}
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if iosVer == "" || buildVer == "" {
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return "", errors.New("failed to parse ideviceinfo output")
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}
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verSplit := strings.Split(iosVer, ".")
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if len(verSplit) > 2 {
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// Developer images are specific to major.minor ios version.
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// Cut off the patch version.
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iosVer = strings.Join(verSplit[:2], ".")
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}
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sdkBase := "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport"
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patterns := []string{fmt.Sprintf("%s (%s)", iosVer, buildVer), fmt.Sprintf("%s (*)", iosVer), fmt.Sprintf("%s*", iosVer)}
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for _, pattern := range patterns {
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matches, err := filepath.Glob(filepath.Join(sdkBase, pattern, "DeveloperDiskImage.dmg"))
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if err != nil {
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return "", fmt.Errorf("findDevImage: %v", err)
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}
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if len(matches) > 0 {
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return matches[0], nil
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}
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}
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return "", fmt.Errorf("failed to find matching developer image for iOS version %s build %s", iosVer, buildVer)
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}
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// startDebugBridge ensures that the idevicedebugserverproxy runs on
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// port 3222.
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func startDebugBridge() (func(), error) {
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errChan := make(chan error, 1)
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cmd := idevCmd(exec.Command("idevicedebugserverproxy", "3222"))
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var stderr bytes.Buffer
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cmd.Stderr = &stderr
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if err := cmd.Start(); err != nil {
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return nil, fmt.Errorf("idevicedebugserverproxy: %v", err)
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}
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go func() {
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if err := cmd.Wait(); err != nil {
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if _, ok := err.(*exec.ExitError); ok {
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errChan <- fmt.Errorf("idevicedebugserverproxy: %s", stderr.Bytes())
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} else {
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errChan <- fmt.Errorf("idevicedebugserverproxy: %v", err)
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}
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}
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errChan <- nil
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}()
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closer := func() {
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cmd.Process.Kill()
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<-errChan
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}
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// Dial localhost:3222 to ensure the proxy is ready.
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delay := time.Second / 4
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for attempt := 0; attempt < 5; attempt++ {
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conn, err := net.DialTimeout("tcp", "localhost:3222", 5*time.Second)
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if err == nil {
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conn.Close()
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return closer, nil
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}
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select {
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case <-time.After(delay):
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delay *= 2
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case err := <-errChan:
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return nil, err
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}
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}
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closer()
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return nil, errors.New("failed to set up idevicedebugserverproxy")
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}
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// findDeviceAppPath returns the device path to the app with the
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// given bundle ID. It parses the output of ideviceinstaller -l -o xml,
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// looking for the bundle ID and the corresponding Path value.
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func findDeviceAppPath(bundleID string) (string, error) {
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cmd := idevCmd(exec.Command("ideviceinstaller", "-l", "-o", "xml"))
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out, err := cmd.CombinedOutput()
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if err != nil {
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os.Stderr.Write(out)
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return "", fmt.Errorf("ideviceinstaller: -l -o xml %v", err)
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}
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var list struct {
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Apps []struct {
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Data []byte `xml:",innerxml"`
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} `xml:"array>dict"`
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}
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if err := xml.Unmarshal(out, &list); err != nil {
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return "", fmt.Errorf("failed to parse ideviceinstaller output: %v", err)
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}
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for _, app := range list.Apps {
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values, err := parsePlistDict(app.Data)
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if err != nil {
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return "", fmt.Errorf("findDeviceAppPath: failed to parse app dict: %v", err)
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}
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if values["CFBundleIdentifier"] == bundleID {
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if path, ok := values["Path"]; ok {
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return path, nil
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}
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}
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}
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return "", fmt.Errorf("failed to find device path for bundle: %s", bundleID)
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}
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// Parse an xml encoded plist. Plist values are mapped to string.
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func parsePlistDict(dict []byte) (map[string]string, error) {
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d := xml.NewDecoder(bytes.NewReader(dict))
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values := make(map[string]string)
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var key string
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var hasKey bool
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for {
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tok, err := d.Token()
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if err == io.EOF {
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break
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}
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if err != nil {
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return nil, err
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}
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if tok, ok := tok.(xml.StartElement); ok {
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if tok.Name.Local == "key" {
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if err := d.DecodeElement(&key, &tok); err != nil {
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return nil, err
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}
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hasKey = true
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} else if hasKey {
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var val string
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var err error
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switch n := tok.Name.Local; n {
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case "true", "false":
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// Bools are represented as <true/> and <false/>.
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val = n
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err = d.Skip()
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default:
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err = d.DecodeElement(&val, &tok)
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}
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if err != nil {
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return nil, err
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}
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values[key] = val
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hasKey = false
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} else {
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if err := d.Skip(); err != nil {
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return nil, err
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}
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}
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}
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}
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return values, nil
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}
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func installSimulator(appdir string) error {
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cmd := exec.Command(
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"xcrun", "simctl", "install",
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@ -460,138 +142,20 @@ func installSimulator(appdir string) error {
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return nil
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}
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func uninstallDevice(bundleID string) error {
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cmd := idevCmd(exec.Command(
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"ideviceinstaller",
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"-U", bundleID,
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))
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if out, err := cmd.CombinedOutput(); err != nil {
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os.Stderr.Write(out)
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return fmt.Errorf("ideviceinstaller -U %q: %s", bundleID, err)
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}
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return nil
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}
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func installDevice(appdir string) error {
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attempt := 0
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for {
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cmd := idevCmd(exec.Command(
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"ideviceinstaller",
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"-i", appdir,
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))
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if out, err := cmd.CombinedOutput(); err != nil {
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// Sometimes, installing the app fails for some reason.
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// Give the device a few seconds and try again.
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if attempt < 5 {
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time.Sleep(5 * time.Second)
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attempt++
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continue
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}
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os.Stderr.Write(out)
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return fmt.Errorf("ideviceinstaller -i %q: %v (%d attempts)", appdir, err, attempt)
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}
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return nil
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}
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}
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func idevCmd(cmd *exec.Cmd) *exec.Cmd {
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if deviceID != "" {
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// Inject -u device_id after the executable, but before the arguments.
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args := []string{cmd.Args[0], "-u", deviceID}
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cmd.Args = append(args, cmd.Args[1:]...)
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}
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return cmd
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}
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func runSimulator(appdir, bundleID string, args []string) error {
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cmd := exec.Command(
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"xcrun", "simctl", "launch",
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"--wait-for-debugger",
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xcrunArgs := []string{"simctl", "spawn",
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"booted",
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bundleID,
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)
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out, err := cmd.CombinedOutput()
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appdir + "/gotest",
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}
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xcrunArgs = append(xcrunArgs, args...)
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cmd := exec.Command("xcrun", xcrunArgs...)
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cmd.Stdout, cmd.Stderr = os.Stdout, os.Stderr
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err := cmd.Run()
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if err != nil {
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os.Stderr.Write(out)
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return fmt.Errorf("xcrun simctl launch booted %q: %v", bundleID, err)
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}
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var processID int
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var ignore string
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if _, err := fmt.Sscanf(string(out), "%s %d", &ignore, &processID); err != nil {
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return fmt.Errorf("runSimulator: couldn't find processID from `simctl launch`: %v (%q)", err, out)
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||||
}
|
||||
_, err = runLLDB("ios-simulator", appdir, strconv.Itoa(processID), args)
|
||||
return err
|
||||
}
|
||||
|
||||
func runDevice(appdir, bundleID string, args []string) error {
|
||||
attempt := 0
|
||||
for {
|
||||
// The device app path reported by the device might be stale, so retry
|
||||
// the lookup of the device path along with the lldb launching below.
|
||||
deviceapp, err := findDeviceAppPath(bundleID)
|
||||
if err != nil {
|
||||
// The device app path might not yet exist for a newly installed app.
|
||||
if attempt == 5 {
|
||||
return err
|
||||
}
|
||||
attempt++
|
||||
time.Sleep(5 * time.Second)
|
||||
continue
|
||||
}
|
||||
out, err := runLLDB("remote-ios", appdir, deviceapp, args)
|
||||
// If the program was not started it can be retried without papering over
|
||||
// real test failures.
|
||||
started := bytes.HasPrefix(out, []byte("lldb: running program"))
|
||||
if started || err == nil || attempt == 5 {
|
||||
return err
|
||||
}
|
||||
// Sometimes, the app was not yet ready to launch or the device path was
|
||||
// stale. Retry.
|
||||
attempt++
|
||||
time.Sleep(5 * time.Second)
|
||||
}
|
||||
}
|
||||
|
||||
func runLLDB(target, appdir, deviceapp string, args []string) ([]byte, error) {
|
||||
var env []string
|
||||
for _, e := range os.Environ() {
|
||||
// Don't override TMPDIR, HOME, GOCACHE on the device.
|
||||
if strings.HasPrefix(e, "TMPDIR=") || strings.HasPrefix(e, "HOME=") || strings.HasPrefix(e, "GOCACHE=") {
|
||||
continue
|
||||
}
|
||||
env = append(env, e)
|
||||
}
|
||||
lldb := exec.Command(
|
||||
"python",
|
||||
"-", // Read script from stdin.
|
||||
target,
|
||||
appdir,
|
||||
deviceapp,
|
||||
)
|
||||
lldb.Args = append(lldb.Args, args...)
|
||||
lldb.Env = env
|
||||
lldb.Stdin = strings.NewReader(lldbDriver)
|
||||
lldb.Stdout = os.Stdout
|
||||
var out bytes.Buffer
|
||||
lldb.Stderr = io.MultiWriter(&out, os.Stderr)
|
||||
err := lldb.Start()
|
||||
if err == nil {
|
||||
// Forward SIGQUIT to the lldb driver which in turn will forward
|
||||
// to the running program.
|
||||
sigs := make(chan os.Signal, 1)
|
||||
signal.Notify(sigs, syscall.SIGQUIT)
|
||||
proc := lldb.Process
|
||||
go func() {
|
||||
for sig := range sigs {
|
||||
proc.Signal(sig)
|
||||
}
|
||||
}()
|
||||
err = lldb.Wait()
|
||||
signal.Stop(sigs)
|
||||
close(sigs)
|
||||
}
|
||||
return out.Bytes(), err
|
||||
return nil
|
||||
}
|
||||
|
||||
func copyLocalDir(dst, src string) error {
|
||||
@ -800,112 +364,3 @@ const resourceRules = `<?xml version="1.0" encoding="UTF-8"?>
|
||||
</dict>
|
||||
</plist>
|
||||
`
|
||||
|
||||
const lldbDriver = `
|
||||
import sys
|
||||
import os
|
||||
import signal
|
||||
|
||||
platform, exe, device_exe_or_pid, args = sys.argv[1], sys.argv[2], sys.argv[3], sys.argv[4:]
|
||||
|
||||
env = []
|
||||
for k, v in os.environ.items():
|
||||
env.append(k + "=" + v)
|
||||
|
||||
sys.path.append('/Applications/Xcode.app/Contents/SharedFrameworks/LLDB.framework/Resources/Python')
|
||||
|
||||
import lldb
|
||||
|
||||
debugger = lldb.SBDebugger.Create()
|
||||
debugger.SetAsync(True)
|
||||
debugger.SkipLLDBInitFiles(True)
|
||||
|
||||
err = lldb.SBError()
|
||||
target = debugger.CreateTarget(exe, None, platform, True, err)
|
||||
if not target.IsValid() or not err.Success():
|
||||
sys.stderr.write("lldb: failed to setup up target: %s\n" % (err))
|
||||
sys.exit(1)
|
||||
|
||||
listener = debugger.GetListener()
|
||||
|
||||
if platform == 'remote-ios':
|
||||
target.modules[0].SetPlatformFileSpec(lldb.SBFileSpec(device_exe_or_pid))
|
||||
process = target.ConnectRemote(listener, 'connect://localhost:3222', None, err)
|
||||
else:
|
||||
process = target.AttachToProcessWithID(listener, int(device_exe_or_pid), err)
|
||||
|
||||
if not err.Success():
|
||||
sys.stderr.write("lldb: failed to connect to remote target %s: %s\n" % (device_exe_or_pid, err))
|
||||
sys.exit(1)
|
||||
|
||||
# Don't stop on signals.
|
||||
sigs = process.GetUnixSignals()
|
||||
for i in range(0, sigs.GetNumSignals()):
|
||||
sig = sigs.GetSignalAtIndex(i)
|
||||
sigs.SetShouldStop(sig, False)
|
||||
sigs.SetShouldNotify(sig, False)
|
||||
|
||||
event = lldb.SBEvent()
|
||||
running = False
|
||||
prev_handler = None
|
||||
|
||||
def signal_handler(signal, frame):
|
||||
process.Signal(signal)
|
||||
|
||||
def run_program():
|
||||
# Forward SIGQUIT to the program.
|
||||
prev_handler = signal.signal(signal.SIGQUIT, signal_handler)
|
||||
# Tell the Go driver that the program is running and should not be retried.
|
||||
sys.stderr.write("lldb: running program\n")
|
||||
running = True
|
||||
# Process is stopped at attach/launch. Let it run.
|
||||
process.Continue()
|
||||
|
||||
if platform != 'remote-ios':
|
||||
# For the local emulator the program is ready to run.
|
||||
# For remote device runs, we need to wait for eStateConnected,
|
||||
# below.
|
||||
run_program()
|
||||
|
||||
while True:
|
||||
if not listener.WaitForEvent(1, event):
|
||||
continue
|
||||
if not lldb.SBProcess.EventIsProcessEvent(event):
|
||||
continue
|
||||
if running:
|
||||
# Pass through stdout and stderr.
|
||||
while True:
|
||||
out = process.GetSTDOUT(8192)
|
||||
if not out:
|
||||
break
|
||||
sys.stdout.write(out)
|
||||
while True:
|
||||
out = process.GetSTDERR(8192)
|
||||
if not out:
|
||||
break
|
||||
sys.stderr.write(out)
|
||||
state = process.GetStateFromEvent(event)
|
||||
if state in [lldb.eStateCrashed, lldb.eStateDetached, lldb.eStateUnloaded, lldb.eStateExited]:
|
||||
if running:
|
||||
signal.signal(signal.SIGQUIT, prev_handler)
|
||||
break
|
||||
elif state == lldb.eStateConnected:
|
||||
if platform == 'remote-ios':
|
||||
process.RemoteLaunch(args, env, None, None, None, None, 0, False, err)
|
||||
if not err.Success():
|
||||
sys.stderr.write("lldb: failed to launch remote process: %s\n" % (err))
|
||||
process.Kill()
|
||||
debugger.Terminate()
|
||||
sys.exit(1)
|
||||
run_program()
|
||||
|
||||
exitStatus = process.GetExitStatus()
|
||||
exitDesc = process.GetExitDescription()
|
||||
process.Kill()
|
||||
debugger.Terminate()
|
||||
if exitStatus == 0 and exitDesc is not None:
|
||||
# Ensure tests fail when killed by a signal.
|
||||
exitStatus = 123
|
||||
|
||||
sys.exit(exitStatus)
|
||||
`
|
||||
|
||||
Loading…
Reference in New Issue
Block a user