684 lines
15 KiB
Go
684 lines
15 KiB
Go
package gojs
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import (
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"apigo.cc/apigo/gojs/dop251/goja"
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"apigo.cc/apigo/gojs/dop251/goja_nodejs/require"
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"encoding/json"
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"errors"
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"fmt"
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"github.com/ssgo/log"
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"github.com/ssgo/tool/watcher"
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"github.com/ssgo/u"
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"os"
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"os/signal"
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"path/filepath"
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"regexp"
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"strings"
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"sync"
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"syscall"
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"time"
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)
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type Map = map[string]any
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type Module struct {
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Object Map
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ObjectMaker func(vm *goja.Runtime) Map
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TsCode string
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Desc string
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Example string
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}
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type Program struct {
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prg *goja.Program
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startFile string
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imports map[string]string
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}
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var modules = map[string]Module{}
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var modulesLock = sync.RWMutex{}
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func Register(name string, mod Module) {
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modulesLock.Lock()
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modules[name] = mod
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modulesLock.Unlock()
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}
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func RunFile(file string, args ...any) (any, error) {
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if code, err := u.ReadFile(file); err == nil {
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return Run(code, file, args...)
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} else {
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return nil, err
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}
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}
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func Run(code string, refFile string, args ...any) (any, error) {
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rt := New()
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var r any
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err := rt.StartFromCode(code, refFile)
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if err == nil {
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r, err = rt.RunMain(args...)
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}
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return r, err
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}
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func RunProgram(plg *Program, args ...any) (any, error) {
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rt := New()
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var r any
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err := rt.StartFromProgram(plg)
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if err == nil {
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r, err = rt.RunMain(args...)
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}
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return r, err
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}
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func CompileFile(file string) (*Program, error) {
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if code, err := u.ReadFile(file); err == nil {
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return CompileMain(code, file)
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} else {
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return nil, err
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}
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}
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func CompileMain(code string, refFile string) (*Program, error) {
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imports := makeImports(&code)
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if !checkMainMatcher.MatchString(code) {
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code = "function main(...Args){" + code + "}"
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}
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p, err := goja.Compile(refFile, code, false)
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return &Program{prg: p, imports: imports, startFile: refFile}, err
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}
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func CompileCode(code string, refFile string) (*Program, error) {
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imports := makeImports(&code)
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p, err := goja.Compile(refFile, code, false)
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return &Program{prg: p, imports: imports, startFile: refFile}, err
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}
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var importModMatcher = regexp.MustCompile(`(?im)^\s*import\s+(.+?)\s+from\s+['"](.+?)['"]`)
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var requireModMatcher = regexp.MustCompile(`(?im)^\s*(const|let|var)\s+(.+?)\s*=\s*require\s*\(\s*['"](.+?)['"]\s*\)`)
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// var importLibMatcher = regexp.MustCompile(`(?im)^\s*(import)\s+(.+?)\s+from\s+['"][./\\\w:]+lib[/\\](.+?)(\.ts)?['"]`)
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// var requireLibMatcher = regexp.MustCompile(`(?im)^\s*(const|let|var)\s+(.+?)\s*=\s*require\s*\(\s*['"][./\\\w:]+lib[/\\](.+?)(\.ts)?['"]\s*\)`)
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var checkMainMatcher = regexp.MustCompile(`(?im)^\s*function\s+main\s*\(`)
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type Runtime struct {
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vm *goja.Runtime
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required map[string]bool
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file string
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srcCode string
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code string
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moduleLoader func(string) string
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started bool
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dataLock sync.RWMutex
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}
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func (rt *Runtime) lock() {
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rt.vm.Locker.Lock()
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}
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func (rt *Runtime) unlock() {
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rt.vm.Locker.Unlock()
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}
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//func (rt *Runtime) Free() {
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// rt.vm.GoData = nil
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// rt.vm = nil
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//}
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func (rt *Runtime) SetModuleLoader(fn func(filename string) string) {
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rt.moduleLoader = fn
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}
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func (rt *Runtime) GetCallStack() []string {
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callStacks := make([]string, 0)
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rt.lock()
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stacks := rt.vm.CaptureCallStack(0, nil)
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rt.unlock()
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for _, stack := range stacks {
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callStacks = append(callStacks, stack.Position().String())
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}
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return callStacks
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}
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func (rt *Runtime) requireSpecialMod(name string) error {
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if rt.required[name] {
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return nil
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}
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if name == "setTimeout" {
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rt.required["setTimeout"] = true
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fn := func(argsIn goja.FunctionCall, vm *goja.Runtime) goja.Value {
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args := MakeArgs(&argsIn, vm).Check(1)
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callback := args.Func(0)
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timeout := time.Duration(args.Int64(1)) * time.Millisecond
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//locked := vm.Locker.TryLock()
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//vm.Locker.Unlock()
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//locked2 := vm.CallbackLocker.TryLock()
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//vm.CallbackLocker.Unlock()
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if callback != nil {
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go func() {
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if timeout > 0 {
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time.Sleep(timeout)
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}
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//if !locked {
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// vm.Locker.Lock()
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//}
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//if !locked2 {
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// vm.CallbackLocker.Lock()
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//}
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if _, err := callback(args.This, args.Arguments[2:]...); err != nil {
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//panic(vm.NewGoError(err))
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}
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}()
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}
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return nil
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}
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rt.lock()
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err := rt.vm.Set("setTimeout", fn)
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rt.unlock()
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return err
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}
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return errors.New("module not found: " + name)
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}
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func (rt *Runtime) requireMod(modName, realModName string) error {
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if rt.required[modName] {
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return nil
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}
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modulesLock.RLock()
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mod, ok := modules[modName]
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modulesLock.RUnlock()
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if !ok {
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// 不在注册的模块中,尝试引入特殊模块
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return rt.requireSpecialMod(modName)
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}
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var err error
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rt.lock()
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if mod.ObjectMaker != nil {
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err = rt.vm.Set(realModName, mod.ObjectMaker(rt.vm))
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} else {
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err = rt.vm.Set(realModName, mod.Object)
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}
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rt.unlock()
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if err != nil {
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return err
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}
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rt.required[modName] = true
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return nil
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}
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func (rt *Runtime) requireAllMod() error {
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var allModules = map[string]Module{}
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modulesLock.RLock()
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for k, v := range modules {
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allModules[k] = v
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}
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modulesLock.RUnlock()
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for modName, mod := range allModules {
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if !rt.required[modName] {
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var err error
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realModName := modName
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if strings.ContainsRune(modName, '/') {
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realModName = strings.ReplaceAll(realModName, "/", "_")
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}
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rt.lock()
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if mod.ObjectMaker != nil {
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err = rt.vm.Set(realModName, mod.ObjectMaker(rt.vm))
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} else {
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err = rt.vm.Set(realModName, mod.Object)
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}
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rt.unlock()
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if err != nil {
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return err
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}
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rt.required[modName] = true
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}
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}
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if err := rt.requireSpecialMod("setTimeout"); err != nil {
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return err
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}
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return nil
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}
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func makeImports(code *string) map[string]string {
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importModules := map[string]string{}
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*code = importModMatcher.ReplaceAllString(*code, "let $1 = require('$2')")
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*code = requireModMatcher.ReplaceAllStringFunc(*code, func(str string) string {
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if m := requireModMatcher.FindStringSubmatch(str); m != nil && len(m) > 3 {
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optName := m[1]
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varName := m[2]
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modName := m[3]
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realModName := modName
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if strings.ContainsRune(modName, '/') {
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realModName = strings.ReplaceAll(realModName, "/", "_")
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}
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modulesLock.RLock()
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_, ok := modules[modName]
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modulesLock.RUnlock()
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if !ok {
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return str
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}
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importModules[modName] = realModName
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if varName != realModName {
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return fmt.Sprintf("%s %s = %s", optName, varName, realModName)
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} else {
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return ""
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}
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}
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return str
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})
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if strings.Contains(*code, "setTimeout") {
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importModules["setTimeout"] = "setTimeout"
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}
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return importModules
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}
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func (rt *Runtime) setImports(importModules map[string]string) error {
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var modErr error
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for k, v := range importModules {
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if modErr == nil {
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if err := rt.requireMod(k, v); err != nil {
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modErr = err
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}
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}
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}
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return modErr
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}
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func New() *Runtime {
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vm := goja.New()
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rt := &Runtime{
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vm: vm,
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required: map[string]bool{},
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}
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vm.GoData = map[string]any{
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"logger": log.New(u.ShortUniqueId()),
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}
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// 处理模块引用
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require.NewRegistryWithLoader(func(path string) ([]byte, error) {
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modFile := path
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if !filepath.IsAbs(modFile) {
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modFile = filepath.Join(filepath.Dir(rt.file), modFile)
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}
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if !strings.HasSuffix(modFile, ".js") && !u.FileExists(modFile) {
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modFile += ".js"
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}
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modCode := ""
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if rt.moduleLoader != nil {
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modCode = rt.moduleLoader(modFile)
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}
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if modCode == "" {
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var err error
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modCode, err = u.ReadFile(modFile)
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if err != nil {
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return nil, err
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}
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}
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imports := makeImports(&modCode)
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if err := rt.setImports(imports); err != nil {
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return nil, err
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}
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return []byte(modCode), nil
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}).Enable(rt.vm)
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return rt
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}
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func (rt *Runtime) StartFromFile(file string) error {
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if code, err := u.ReadFile(file); err == nil {
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return rt.StartFromCode(code, file)
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} else {
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return err
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}
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}
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func (rt *Runtime) StartFromCode(code, refFile string) error {
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if refFile != "" {
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rt.file = refFile
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}
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if rt.file == "" {
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rt.file = "main.js"
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}
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if absFile, err := filepath.Abs(rt.file); err == nil {
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rt.file = absFile
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}
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refPath := filepath.Dir(refFile)
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rt.SetGoData("startFile", refFile)
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rt.SetGoData("startPath", refPath)
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if rt.srcCode == "" {
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rt.srcCode = code
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}
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rt.code = code
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// 按需加载引用
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//var importCount int
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var modErr error
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//rt.code, importCount, modErr = rt.makeImport(rt.code)
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imports := makeImports(&rt.code)
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if len(imports) == 0 {
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modErr = rt.requireAllMod()
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} else {
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modErr = rt.setImports(imports)
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}
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//// 如果没有import,默认import所有
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//if modErr == nil && importCount == 0 {
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// modErr = rt.requireMod("", "")
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//}
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if modErr != nil {
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return modErr
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}
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//fmt.Println(u.BCyan(rt.code))
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// 初始化主函数
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if !checkMainMatcher.MatchString(rt.code) {
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rt.code = "function main(...Args){" + rt.code + "}"
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}
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rt.lock()
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_, err := rt.vm.RunScript(rt.file, rt.code)
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rt.unlock()
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if err != nil {
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return err
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} else {
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rt.started = true
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return nil
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}
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}
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func (rt *Runtime) StartFromProgram(plg *Program) error {
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var modErr error
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if len(plg.imports) == 0 {
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modErr = rt.requireAllMod()
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} else {
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modErr = rt.setImports(plg.imports)
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}
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if modErr != nil {
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return modErr
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}
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rt.SetGoData("startFile", plg.startFile)
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rt.SetGoData("startPath", filepath.Dir(plg.startFile))
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rt.lock()
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_, err := rt.vm.RunProgram(plg.prg)
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rt.unlock()
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if err != nil {
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return err
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} else {
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rt.started = true
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return nil
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}
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}
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func (rt *Runtime) RunMain(args ...any) (any, error) {
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if !rt.started {
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return nil, errors.New("runtime not started")
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}
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// 解析参数
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for i, arg := range args {
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if str, ok := arg.(string); ok {
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var v interface{}
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if err := json.Unmarshal([]byte(str), &v); err == nil {
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args[i] = v
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}
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}
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}
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rt.lock()
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err := rt.vm.Set("__args", args)
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rt.unlock()
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if err != nil {
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return nil, err
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}
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rt.lock()
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r, err := rt.vm.RunScript("main", "main(...__args)")
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rt.unlock()
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return makeResult(r, err)
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}
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func (rt *Runtime) RunVM(callback func(vm *goja.Runtime) (any, error)) (any, error) {
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rt.lock()
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r, err := callback(rt.vm)
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rt.unlock()
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return r, err
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}
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func (rt *Runtime) SetGoData(name string, value any) {
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rt.dataLock.Lock()
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rt.vm.GoData[name] = value
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rt.dataLock.Unlock()
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}
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func (rt *Runtime) GetGoData(name string) any {
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rt.dataLock.RLock()
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defer rt.dataLock.RUnlock()
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return rt.vm.GoData[name]
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}
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func (rt *Runtime) Set(name string, value any) error {
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rt.lock()
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defer rt.unlock()
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return rt.vm.Set(name, value)
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}
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func (rt *Runtime) SetGlobal(global Map) error {
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var err error
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rt.lock()
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defer rt.unlock()
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for k, v := range global {
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if err = rt.vm.Set(k, v); err != nil {
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return err
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}
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}
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return nil
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}
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func (rt *Runtime) RunFile(file string) (any, error) {
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if code, err := u.ReadFile(file); err == nil {
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imports := makeImports(&code)
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if err := rt.setImports(imports); err != nil {
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return nil, err
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}
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rt.lock()
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r, err := rt.vm.RunScript(file, code)
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rt.unlock()
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return makeResult(r, err)
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} else {
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return nil, err
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}
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}
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func (rt *Runtime) RunCode(code string) (any, error) {
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imports := makeImports(&code)
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if err := rt.setImports(imports); err != nil {
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return nil, err
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}
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rt.lock()
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r, err := rt.vm.RunScript("anonymous", code)
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rt.unlock()
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return makeResult(r, err)
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}
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func (rt *Runtime) RunProgram(prg *Program) (any, error) {
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var r goja.Value
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err := rt.setImports(prg.imports)
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if err == nil {
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rt.lock()
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r, err = rt.vm.RunProgram(prg.prg)
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rt.unlock()
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}
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return makeResult(r, err)
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}
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func makeResult(r goja.Value, err error) (any, error) {
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var result any
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if err == nil {
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if r != nil && !r.Equals(goja.Undefined()) {
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result = r.Export()
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}
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}
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return result, err
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}
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type WatchRunner struct {
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w *watcher.Watcher
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}
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func (wr *WatchRunner) WaitForKill() {
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exitCh := make(chan os.Signal, 1)
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closeCh := make(chan bool, 1)
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signal.Notify(exitCh, os.Interrupt, syscall.SIGTERM, syscall.SIGINT, syscall.SIGHUP)
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go func() {
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<-exitCh
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closeCh <- true
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}()
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<-closeCh
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wr.w.Stop()
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}
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func (wr *WatchRunner) Stop() {
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wr.w.Stop()
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}
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func WatchRun(file string, extDirs, extTypes []string, args ...any) (*WatchRunner, error) {
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wr := &WatchRunner{}
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run := func() {
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rt := New()
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if wr.w != nil {
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rt.SetModuleLoader(func(filename string) string {
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filePath := filepath.Dir(filename)
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needWatch := true
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for _, v := range wr.w.WatchList() {
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if v == filePath {
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||
needWatch = false
|
||
break
|
||
}
|
||
}
|
||
if needWatch {
|
||
fmt.Println(u.BMagenta("[watching module path]"), filePath)
|
||
_ = wr.w.Add(filePath)
|
||
}
|
||
return u.ReadFileN(filename)
|
||
})
|
||
}
|
||
err := rt.StartFromFile(file)
|
||
result, err := rt.RunMain(args...)
|
||
if err != nil {
|
||
fmt.Println(u.BRed(err.Error()))
|
||
fmt.Println(u.Red(" " + strings.Join(rt.GetCallStack(), "\n ")))
|
||
} else if result != nil {
|
||
fmt.Println(u.Cyan(u.JsonP(result)))
|
||
}
|
||
}
|
||
|
||
var isWaitingRun = false
|
||
onChange := func(filename string, event string) {
|
||
if !isWaitingRun {
|
||
_, _ = os.Stdout.WriteString("\x1b[3;J\x1b[H\x1b[2J")
|
||
isWaitingRun = true
|
||
go func() {
|
||
time.Sleep(time.Millisecond * 10)
|
||
isWaitingRun = false
|
||
run()
|
||
}()
|
||
}
|
||
fmt.Println(u.BYellow("[changed]"), filename)
|
||
}
|
||
_, _ = os.Stdout.WriteString("\x1b[3;J\x1b[H\x1b[2J")
|
||
watchStartPath := filepath.Dir(file)
|
||
fmt.Println(u.BMagenta("[watching root path]"), watchStartPath)
|
||
watchDirs := []string{watchStartPath}
|
||
watchTypes := []string{"js", "json", "yml"}
|
||
if extDirs != nil {
|
||
for _, v := range extDirs {
|
||
watchDirs = append(watchDirs, v)
|
||
}
|
||
}
|
||
if extTypes != nil {
|
||
for _, v := range extTypes {
|
||
watchTypes = append(watchTypes, v)
|
||
}
|
||
}
|
||
if w, err := watcher.Start(watchDirs, watchTypes, onChange); err == nil {
|
||
wr.w = w
|
||
go func() {
|
||
run()
|
||
}()
|
||
return wr, nil
|
||
} else {
|
||
return nil, err
|
||
}
|
||
}
|
||
|
||
func ExportForDev() string {
|
||
var allModules = map[string]Module{}
|
||
modulesLock.RLock()
|
||
for k, v := range modules {
|
||
allModules[k] = v
|
||
}
|
||
modulesLock.RUnlock()
|
||
|
||
dir, _ := os.Getwd()
|
||
nodeModulesPath := "node_modules"
|
||
packageJsonFile := "package.json"
|
||
for i := 0; i < 20; i++ {
|
||
nodePath := filepath.Join(dir, "node_modules")
|
||
if u.FileExists(nodePath) {
|
||
nodeModulesPath = nodePath
|
||
packageJsonFile = filepath.Join(dir, "package.json")
|
||
break
|
||
}
|
||
parentDir := filepath.Dir(dir)
|
||
if parentDir == dir {
|
||
break
|
||
}
|
||
dir = parentDir
|
||
}
|
||
|
||
oldPackageJson := u.ReadFileN(packageJsonFile)
|
||
insertModulesPostfix := ""
|
||
if oldPackageJson == "" {
|
||
oldPackageJson = "{\n \"devDependencies\": {\n\n }\n}"
|
||
} else if !strings.Contains(oldPackageJson, "\"devDependencies\": {") {
|
||
oldPackageJson = strings.Replace(oldPackageJson, "{", "{\n \"devDependencies\": {\n\n },", 1)
|
||
} else {
|
||
insertModulesPostfix = ","
|
||
}
|
||
|
||
insertModules := make([]string, 0)
|
||
imports := make([]string, len(allModules))
|
||
i := 0
|
||
for k, v := range allModules {
|
||
varName := k
|
||
tsPath := k
|
||
if strings.ContainsRune(k, '/') {
|
||
varName = varName[strings.LastIndex(varName, "/")+1:]
|
||
if os.PathSeparator != '/' {
|
||
tsPath = strings.ReplaceAll(tsPath, "/", string(os.PathSeparator))
|
||
}
|
||
}
|
||
_ = u.WriteFile(filepath.Join(nodeModulesPath, tsPath, "index.ts"), v.TsCode)
|
||
imports[i] = fmt.Sprintf("import %s from '%s'", varName, k)
|
||
i++
|
||
|
||
if !strings.Contains(oldPackageJson, "\""+k+"\":") {
|
||
insertModules = u.AppendUniqueString(insertModules, fmt.Sprint("\"", k, "\": \"v0.0.0\""))
|
||
}
|
||
}
|
||
|
||
if len(insertModules) > 0 {
|
||
newPackageJson := strings.Replace(oldPackageJson, "\"devDependencies\": {", "\"devDependencies\": {\n "+strings.Join(insertModules, ",\n ")+insertModulesPostfix, 1)
|
||
_ = u.WriteFile(packageJsonFile, newPackageJson)
|
||
}
|
||
return strings.Join(imports, "\n")
|
||
}
|