forked from wailsapp/wails
/
package.go
427 lines (372 loc) · 9.46 KB
/
package.go
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package cmd
import (
"bufio"
"bytes"
"encoding/binary"
"fmt"
"image"
"image/png"
"os"
"path"
"path/filepath"
"runtime"
"strings"
"text/template"
"time"
"github.com/jackmordaunt/icns"
"golang.org/x/image/draw"
)
// PackageHelper helps with the 'wails package' command
type PackageHelper struct {
platform string
fs *FSHelper
log *Logger
system *SystemHelper
}
// NewPackageHelper creates a new PackageHelper!
func NewPackageHelper(platform string) *PackageHelper {
return &PackageHelper{
platform: platform,
fs: NewFSHelper(),
log: NewLogger(),
system: NewSystemHelper(),
}
}
type plistData struct {
Title string
Exe string
PackageID string
Version string
Author string
Date string
}
func newPlistData(title, exe, packageID, version, author string) *plistData {
now := time.Now().Format(time.RFC822)
return &plistData{
Title: title,
Exe: exe,
Version: version,
PackageID: packageID,
Author: author,
Date: now,
}
}
type windowsIcoHeader struct {
_ uint16
imageType uint16
imageCount uint16
}
type windowsIcoDescriptor struct {
width uint8
height uint8
colours uint8
_ uint8
planes uint16
bpp uint16
size uint32
offset uint32
}
type windowsIcoContainer struct {
Header windowsIcoDescriptor
Data []byte
}
func generateWindowsIcon(pngFilename string, iconfile string) error {
sizes := []int{256, 128, 64, 48, 32, 16}
pngfile, err := os.Open(pngFilename)
if err != nil {
return err
}
defer pngfile.Close()
pngdata, err := png.Decode(pngfile)
if err != nil {
return err
}
icons := []windowsIcoContainer{}
for _, size := range sizes {
rect := image.Rect(0, 0, int(size), int(size))
rawdata := image.NewRGBA(rect)
scale := draw.CatmullRom
scale.Scale(rawdata, rect, pngdata, pngdata.Bounds(), draw.Over, nil)
icondata := new(bytes.Buffer)
writer := bufio.NewWriter(icondata)
err = png.Encode(writer, rawdata)
if err != nil {
return err
}
writer.Flush()
imgSize := size
if imgSize >= 256 {
imgSize = 0
}
data := icondata.Bytes()
icn := windowsIcoContainer{
Header: windowsIcoDescriptor{
width: uint8(imgSize),
height: uint8(imgSize),
planes: 1,
bpp: 32,
size: uint32(len(data)),
},
Data: data,
}
icons = append(icons, icn)
}
outfile, err := os.Create(iconfile)
if err != nil {
return err
}
defer outfile.Close()
ico := windowsIcoHeader{
imageType: 1,
imageCount: uint16(len(sizes)),
}
err = binary.Write(outfile, binary.LittleEndian, ico)
if err != nil {
return err
}
offset := uint32(6 + 16*len(sizes))
for _, icon := range icons {
icon.Header.offset = offset
err = binary.Write(outfile, binary.LittleEndian, icon.Header)
if err != nil {
return err
}
offset += icon.Header.size
}
for _, icon := range icons {
_, err = outfile.Write(icon.Data)
if err != nil {
return err
}
}
return nil
}
func defaultString(val string, defaultVal string) string {
if val != "" {
return val
}
return defaultVal
}
func (b *PackageHelper) getPackageFileBaseDir() string {
// Calculate template base dir
_, filename, _, _ := runtime.Caller(1)
return filepath.Join(path.Dir(filename), "packages", b.platform)
}
// Package the application into a platform specific package
func (b *PackageHelper) Package(po *ProjectOptions) error {
switch b.platform {
case "darwin":
return b.packageOSX(po)
case "windows":
return b.PackageWindows(po, true)
case "linux":
return b.packageLinux(po)
default:
return fmt.Errorf("platform '%s' not supported for bundling yet", b.platform)
}
}
func (b *PackageHelper) packageLinux(po *ProjectOptions) error {
return nil
}
// Package the application for OSX
func (b *PackageHelper) packageOSX(po *ProjectOptions) error {
build := path.Join(b.fs.Cwd(), "build")
system := NewSystemHelper()
config, err := system.LoadConfig()
if err != nil {
return err
}
name := defaultString(po.Name, "WailsTest")
exe := defaultString(po.BinaryName, name)
version := defaultString(po.Version, "0.1.0")
author := defaultString(config.Name, "Anonymous")
packageID := strings.Join([]string{"wails", name, version}, ".")
plistData := newPlistData(name, exe, packageID, version, author)
appname := po.Name + ".app"
plistFilename := path.Join(build, appname, "Contents", "Info.plist")
customPlist := path.Join(b.fs.Cwd(), "info.plist")
// Check binary exists
source := path.Join(build, exe)
if po.CrossCompile == true {
file, err := b.fs.FindFile(build, "darwin")
if err != nil {
return err
}
source = path.Join(build, file)
}
if !b.fs.FileExists(source) {
// We need to build!
return fmt.Errorf("Target '%s' not available. Has it been compiled yet?", source)
}
// Remove the existing package
os.RemoveAll(appname)
// Create directories
exeDir := path.Join(build, appname, "/Contents/MacOS")
b.fs.MkDirs(exeDir, 0755)
resourceDir := path.Join(build, appname, "/Contents/Resources")
b.fs.MkDirs(resourceDir, 0755)
// Do we have a custom plist in the project directory?
if !fs.FileExists(customPlist) {
// No - create a new plist from our defaults
tmpl := template.New("infoPlist")
plistFile := filepath.Join(b.getPackageFileBaseDir(), "info.plist")
infoPlist, err := os.ReadFile(plistFile)
if err != nil {
return err
}
tmpl.Parse(string(infoPlist))
// Write the template to a buffer
var tpl bytes.Buffer
err = tmpl.Execute(&tpl, plistData)
if err != nil {
return err
}
// Save to the package
err = os.WriteFile(plistFilename, tpl.Bytes(), 0644)
if err != nil {
return err
}
// Also write to project directory for customisation
err = os.WriteFile(customPlist, tpl.Bytes(), 0644)
if err != nil {
return err
}
} else {
// Yes - we have a plist. Copy it to the package verbatim
err = fs.CopyFile(customPlist, plistFilename)
if err != nil {
return err
}
}
// Copy executable
target := path.Join(exeDir, exe)
err = b.fs.CopyFile(source, target)
if err != nil {
return err
}
err = os.Chmod(target, 0755)
if err != nil {
return err
}
err = b.packageIconOSX(resourceDir)
return err
}
// CleanWindows removes any windows related files found in the directory
func (b *PackageHelper) CleanWindows(po *ProjectOptions) {
pdir := b.fs.Cwd()
basename := strings.TrimSuffix(po.BinaryName, ".exe")
exts := []string{".ico", ".exe.manifest", ".rc", "-res.syso"}
rsrcs := []string{}
for _, ext := range exts {
rsrcs = append(rsrcs, filepath.Join(pdir, basename+ext))
}
b.fs.RemoveFiles(rsrcs, true)
}
// PackageWindows packages the application for windows platforms
func (b *PackageHelper) PackageWindows(po *ProjectOptions, cleanUp bool) error {
outputDir := b.fs.Cwd()
basename := strings.TrimSuffix(po.BinaryName, ".exe")
// Copy default icon if needed
icon, err := b.copyIcon()
if err != nil {
return err
}
// Generate icon from PNG if it doesn't exist
if !fs.FileExists(basename + ".ico") {
err = generateWindowsIcon(icon, basename+".ico")
if err != nil {
return err
}
}
// Copy manifest
tgtManifestFile := filepath.Join(outputDir, basename+".exe.manifest")
if !b.fs.FileExists(tgtManifestFile) {
srcManifestfile := filepath.Join(b.getPackageFileBaseDir(), "wails.exe.manifest")
err := b.fs.CopyFile(srcManifestfile, tgtManifestFile)
if err != nil {
return err
}
}
// Copy rc file
tgtRCFile := filepath.Join(outputDir, basename+".rc")
if !b.fs.FileExists(tgtRCFile) {
srcRCfile := filepath.Join(b.getPackageFileBaseDir(), "wails.rc")
rcfilebytes, err := os.ReadFile(srcRCfile)
if err != nil {
return err
}
rcfiledata := strings.Replace(string(rcfilebytes), "$NAME$", basename, -1)
err = os.WriteFile(tgtRCFile, []byte(rcfiledata), 0755)
if err != nil {
return err
}
}
// Build syso
sysofile := filepath.Join(outputDir, basename+"-res.syso")
// cross-compile
if b.platform != runtime.GOOS {
args := []string{
"docker", "run", "--rm",
"-v", outputDir + ":/build",
"--entrypoint", "/bin/sh",
"ciderapp/xgo:1.16.3",
"-c", "/usr/bin/x86_64-w64-mingw32-windres -o /build/" + basename + "-res.syso /build/" + basename + ".rc",
}
if err := NewProgramHelper().RunCommandArray(args); err != nil {
return err
}
} else {
batfile, err := fs.LocalDir(".")
if err != nil {
return err
}
windresBatFile := filepath.Join(batfile.fullPath, "windres.bat")
windresCommand := []string{windresBatFile, sysofile, tgtRCFile}
err = NewProgramHelper().RunCommandArray(windresCommand)
if err != nil {
return err
}
}
return nil
}
func (b *PackageHelper) copyIcon() (string, error) {
// TODO: Read this from project.json
const appIconFilename = "appicon.png"
srcIcon := path.Join(b.fs.Cwd(), appIconFilename)
// Check if appicon.png exists
if !b.fs.FileExists(srcIcon) {
// Install default icon
iconfile := filepath.Join(b.getPackageFileBaseDir(), "icon.png")
iconData, err := os.ReadFile(iconfile)
if err != nil {
return "", err
}
err = os.WriteFile(srcIcon, iconData, 0644)
if err != nil {
return "", err
}
}
return srcIcon, nil
}
func (b *PackageHelper) packageIconOSX(resourceDir string) error {
srcIcon, err := b.copyIcon()
if err != nil {
return err
}
tgtBundle := path.Join(resourceDir, "iconfile.icns")
imageFile, err := os.Open(srcIcon)
if err != nil {
return err
}
defer imageFile.Close()
srcImg, _, err := image.Decode(imageFile)
if err != nil {
return err
}
dest, err := os.Create(tgtBundle)
if err != nil {
return err
}
defer dest.Close()
return icns.Encode(dest, srcImg)
}