| // 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. |
| |
| package main |
| |
| import ( |
| "fmt" |
| "go/build" |
| "io" |
| "io/ioutil" |
| "os/exec" |
| "path/filepath" |
| "strings" |
| "text/template" |
| ) |
| |
| func goIOSBind(pkgs []*build.Package) error { |
| typesPkgs, err := loadExportData(pkgs, darwinArmEnv) |
| if err != nil { |
| return err |
| } |
| |
| binder, err := newBinder(typesPkgs) |
| if err != nil { |
| return err |
| } |
| name := binder.pkgs[0].Name() |
| title := strings.Title(name) |
| |
| if buildO != "" && !strings.HasSuffix(buildO, ".framework") { |
| return fmt.Errorf("static framework name %q missing .framework suffix", buildO) |
| } |
| if buildO == "" { |
| buildO = title + ".framework" |
| } |
| |
| srcDir := filepath.Join(tmpdir, "src") |
| for _, pkg := range typesPkgs { |
| if err := binder.GenGo(pkg, srcDir); err != nil { |
| return err |
| } |
| } |
| mainFile := filepath.Join(tmpdir, "src/iosbin/main.go") |
| err = writeFile(mainFile, func(w io.Writer) error { |
| return iosBindTmpl.Execute(w, pkgs) |
| }) |
| if err != nil { |
| return fmt.Errorf("failed to create the binding package for iOS: %v", err) |
| } |
| |
| objcDir := filepath.Join(tmpdir, "objc") |
| fileBases := make([]string, len(typesPkgs)) |
| for i, pkg := range typesPkgs { |
| if fileBases[i], err = binder.GenObjc(pkg, objcDir); err != nil { |
| return err |
| } |
| } |
| |
| cmd := exec.Command("xcrun", "lipo", "-create") |
| |
| for _, env := range [][]string{darwinArmEnv, darwinArm64Env, darwinAmd64Env} { |
| arch := archClang(getenv(env, "GOARCH")) |
| path, err := goIOSBindArchive(name, mainFile, env, fileBases) |
| if err != nil { |
| return fmt.Errorf("darwin-%s: %v", arch, err) |
| } |
| cmd.Args = append(cmd.Args, "-arch", arch, path) |
| } |
| |
| // Build static framework output directory. |
| if err := removeAll(buildO); err != nil { |
| return err |
| } |
| headers := buildO + "/Versions/A/Headers" |
| if err := mkdir(headers); err != nil { |
| return err |
| } |
| if err := symlink("A", buildO+"/Versions/Current"); err != nil { |
| return err |
| } |
| if err := symlink("Versions/Current/Headers", buildO+"/Headers"); err != nil { |
| return err |
| } |
| if err := symlink("Versions/Current/"+title, buildO+"/"+title); err != nil { |
| return err |
| } |
| |
| cmd.Args = append(cmd.Args, "-o", buildO+"/Versions/A/"+title) |
| if err := runCmd(cmd); err != nil { |
| return err |
| } |
| |
| // Copy header file next to output archive. |
| headerFiles := make([]string, len(fileBases)) |
| if len(fileBases) == 1 { |
| headerFiles[0] = title + ".h" |
| err = copyFile( |
| headers+"/"+title+".h", |
| tmpdir+"/objc/"+bindPrefix+title+".h", |
| ) |
| if err != nil { |
| return err |
| } |
| } else { |
| for i, fileBase := range fileBases { |
| headerFiles[i] = fileBase + ".h" |
| err = copyFile( |
| headers+"/"+fileBase+".h", |
| tmpdir+"/objc/"+fileBase+".h") |
| if err != nil { |
| return err |
| } |
| } |
| headerFiles = append(headerFiles, title+".h") |
| err = writeFile(headers+"/"+title+".h", func(w io.Writer) error { |
| return iosBindHeaderTmpl.Execute(w, map[string]interface{}{ |
| "pkgs": pkgs, "title": title, "bases": fileBases, |
| }) |
| }) |
| if err != nil { |
| return err |
| } |
| } |
| |
| resources := buildO + "/Versions/A/Resources" |
| if err := mkdir(resources); err != nil { |
| return err |
| } |
| if err := symlink("Versions/Current/Resources", buildO+"/Resources"); err != nil { |
| return err |
| } |
| if err := ioutil.WriteFile(buildO+"/Resources/Info.plist", []byte(iosBindInfoPlist), 0666); err != nil { |
| return err |
| } |
| |
| var mmVals = struct { |
| Module string |
| Headers []string |
| }{ |
| Module: title, |
| Headers: headerFiles, |
| } |
| err = writeFile(buildO+"/Versions/A/Modules/module.modulemap", func(w io.Writer) error { |
| return iosModuleMapTmpl.Execute(w, mmVals) |
| }) |
| if err != nil { |
| return err |
| } |
| return symlink("Versions/Current/Modules", buildO+"/Modules") |
| } |
| |
| const iosBindInfoPlist = `<?xml version="1.0" encoding="UTF-8"?> |
| <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> |
| <plist version="1.0"> |
| <dict> |
| </dict> |
| </plist> |
| ` |
| |
| var iosModuleMapTmpl = template.Must(template.New("iosmmap").Parse(`framework module "{{.Module}}" { |
| {{range .Headers}} header "{{.}}" |
| {{end}} |
| export * |
| }`)) |
| |
| func goIOSBindArchive(name, path string, env, fileBases []string) (string, error) { |
| arch := getenv(env, "GOARCH") |
| archive := filepath.Join(tmpdir, name+"-"+arch+".a") |
| err := goBuild(path, env, "-buildmode=c-archive", "-tags=ios", "-o", archive) |
| if err != nil { |
| return "", err |
| } |
| |
| objs, mfiles := make([]string, len(fileBases)), make([]string, len(fileBases)) |
| for i, b := range fileBases { |
| objs[i], mfiles[i] = b+".o", b+".m" |
| } |
| |
| args := append([]string{ |
| "-I", ".", |
| "-g", "-O2", |
| "-fobjc-arc", // enable ARC |
| "-c", |
| }, mfiles...) |
| |
| cmd := exec.Command(getenv(env, "CC"), args...) |
| cmd.Args = append(cmd.Args, strings.Split(getenv(env, "CGO_CFLAGS"), " ")...) |
| cmd.Dir = filepath.Join(tmpdir, "objc") |
| cmd.Env = append([]string{}, env...) |
| if err := runCmd(cmd); err != nil { |
| return "", err |
| } |
| |
| arArgs := append([]string{"-q", "-s", archive}, objs...) |
| cmd = exec.Command("ar", arArgs...) |
| cmd.Dir = filepath.Join(tmpdir, "objc") |
| if err := runCmd(cmd); err != nil { |
| return "", err |
| } |
| return archive, nil |
| } |
| |
| var iosBindTmpl = template.Must(template.New("ios.go").Parse(` |
| package main |
| |
| import ( |
| _ "golang.org/x/mobile/bind/objc" |
| {{range .}} _ "../go_{{.Name}}" |
| {{end}} |
| ) |
| |
| import "C" |
| |
| func main() {} |
| `)) |
| |
| var iosBindHeaderTmpl = template.Must(template.New("ios.h").Parse(` |
| // Objective-C API for talking to the following Go packages |
| // |
| {{range .pkgs}}// {{.ImportPath}} |
| {{end}}// |
| // File is generated by gomobile bind. Do not edit. |
| #ifndef __{{.title}}_H__ |
| #define __{{.title}}_H__ |
| |
| {{range .bases}}#include "{{.}}.h" |
| {{end}} |
| #endif |
| `)) |