Permalink
Switch branches/tags
Nothing to show
Find file Copy path
Fetching contributors…
Cannot retrieve contributors at this time
201 lines (180 sloc) 4.88 KB
// 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"
"os/exec"
"path/filepath"
"strings"
"text/template"
)
func goIOSBind(gobind string, pkgs []*build.Package, archs []string) error {
// Run gobind to generate the bindings
cmd := exec.Command(
gobind,
"-lang=go,objc",
"-outdir="+tmpdir,
)
cmd.Env = append(cmd.Env, "GOOS=darwin")
cmd.Env = append(cmd.Env, "CGO_ENABLED=1")
if len(ctx.BuildTags) > 0 {
cmd.Args = append(cmd.Args, "-tags="+strings.Join(ctx.BuildTags, ","))
}
if bindPrefix != "" {
cmd.Args = append(cmd.Args, "-prefix="+bindPrefix)
}
for _, p := range pkgs {
cmd.Args = append(cmd.Args, p.ImportPath)
}
if err := runCmd(cmd); err != nil {
return err
}
srcDir := filepath.Join(tmpdir, "src", "gobind")
gopath := fmt.Sprintf("GOPATH=%s%c%s", tmpdir, filepath.ListSeparator, goEnv("GOPATH"))
name := 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"
}
fileBases := make([]string, len(pkgs)+1)
for i, pkg := range pkgs {
fileBases[i] = bindPrefix + strings.Title(pkg.Name)
}
fileBases[len(fileBases)-1] = "universe"
cmd = exec.Command("xcrun", "lipo", "-create")
for _, arch := range archs {
env := darwinEnv[arch]
env = append(env, gopath)
path, err := goIOSBindArchive(name, env)
if err != nil {
return fmt.Errorf("darwin-%s: %v", arch, err)
}
cmd.Args = append(cmd.Args, "-arch", archClang(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",
srcDir+"/"+bindPrefix+title+".objc.h",
)
if err != nil {
return err
}
} else {
for i, fileBase := range fileBases {
headerFiles[i] = fileBase + ".objc.h"
err := copyFile(
headers+"/"+fileBase+".objc.h",
srcDir+"/"+fileBase+".objc.h")
if err != nil {
return err
}
}
err := copyFile(
headers+"/ref.h",
srcDir+"/ref.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
}
err := writeFile(buildO+"/Resources/Info.plist", func(w io.Writer) error {
_, err := w.Write([]byte(iosBindInfoPlist))
return err
})
if 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}}" {
header "ref.h"
{{range .Headers}} header "{{.}}"
{{end}}
export *
}`))
func goIOSBindArchive(name string, env []string) (string, error) {
arch := getenv(env, "GOARCH")
archive := filepath.Join(tmpdir, name+"-"+arch+".a")
err := goBuild("gobind", env, "-buildmode=c-archive", "-o", archive)
if err != nil {
return "", err
}
return archive, nil
}
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}}_FRAMEWORK_H__
#define __{{.title}}_FRAMEWORK_H__
{{range .bases}}#include "{{.}}.objc.h"
{{end}}
#endif
`))