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quickgo_commands.go
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quickgo_commands.go
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package quickgo
import (
"encoding/base64"
"fmt"
"io"
"os"
"os/exec"
"path/filepath"
"strings"
"github.com/Nigel2392/quickgo/v2/quickgo/config"
"github.com/Nigel2392/quickgo/v2/quickgo/js"
"github.com/Nigel2392/quickgo/v2/quickgo/logger"
"github.com/dop251/goja"
"github.com/kballard/go-shellquote"
"github.com/pkg/errors"
)
func (a *App) ListJSFiles() ([]string, error) {
var (
dirPath = GetQuickGoPath(config.COMMANDS_DIR)
files = make([]string, 0)
)
dir, err := os.ReadDir(dirPath)
if err != nil && os.IsNotExist(err) {
return []string{}, nil
} else if err != nil {
return nil, errors.Wrapf(err, "failed to read directory %s", dirPath)
}
for _, d := range dir {
if d.IsDir() {
continue
}
if strings.HasSuffix(d.Name(), ".js") {
files = append(files, d.Name()[0:len(d.Name())-3])
}
}
return files, nil
}
func (a *App) SaveJS(path string) error {
var (
dirPath = GetQuickGoPath(config.COMMANDS_DIR)
scriptName = filepath.Base(path)
outputName = filepath.Join(dirPath, scriptName)
scriptSrc *os.File
file *os.File
err error
)
path = filepath.FromSlash(path)
logger.Infof("Copying file %s to %s", path, outputName)
if s, err := os.Stat(path); err != nil || s.IsDir() {
return errors.Wrapf(err, "file %s does not exist or is not a valid file", path)
}
if err = os.MkdirAll(dirPath, os.ModePerm); err != nil {
return errors.Wrapf(err, "failed to create directory %s", dirPath)
}
file, err = os.Create(
outputName,
)
if err != nil {
return errors.Wrapf(err, "failed to create file %s", path)
}
defer file.Close()
scriptSrc, err = os.Open(path)
if err != nil {
return errors.Wrapf(err, "failed to open file %s", path)
}
_, err = io.Copy(file, scriptSrc)
if err != nil {
return errors.Wrapf(err, "failed to copy file %s to %s", path, file.Name())
}
logger.Infof("Command '%s' saved to '%s'", scriptName, outputName)
return nil
}
func (a *App) ExecJS(targetDir string, scriptName string, args map[string]any) (err error) {
var (
scriptPath = GetQuickGoPath(
config.COMMANDS_DIR,
fmt.Sprintf("%s.js", scriptName),
)
script []byte
cmd *js.Command
)
logger.Debugf("Reading script '%s'", scriptPath)
script, err = os.ReadFile(scriptPath)
if err != nil {
return errors.Wrapf(err, "failed to read script %s", script)
}
logger.Debugf("'%s' has access to project config: %v", scriptName, a.ProjectConfig != nil)
var (
projectName string
projectPath string
)
if a.ProjectConfig != nil {
projectName = a.ProjectConfig.Name
projectPath = getTargetDirectory(
targetDir,
)
}
var (
vm = goja.New()
quickgoModule = map[string]any{
"app": a,
"project": a.ProjectConfig,
"config": a.Config,
"environ": args,
"projectName": projectName,
"projectPath": projectPath,
"projectLocked": func() bool {
return config.IsLocked(targetDir) == nil
},
}
fsModule = map[string]any{
"cleanPath": filepath.Clean,
"joinPath": filepath.Join,
"absPath": func(path string) string {
path, err = filepath.Abs(path)
if err != nil {
logger.Error(err)
return ""
}
return path
},
"getWd": func() string {
return getTargetDirectory(targetDir)
},
"writeFile": func(path string, data goja.Value) error {
var b []byte
if vm.InstanceOf(data, vm.Get("Uint8Array").ToObject(vm)) {
b = data.Export().([]byte)
} else if d, ok := data.Export().(goja.ArrayBuffer); ok {
b = d.Bytes()
} else {
b = []byte(data.String())
}
err = os.WriteFile(path, b, os.ModePerm)
if err != nil {
logger.Error(err)
return err
}
logger.Debugf("File '%s' written by '%s'", path, scriptPath)
return nil
},
"readFile": func(path string) goja.Value {
var data []byte
var err error
if data, err = os.ReadFile(path); err != nil {
logger.Error(err)
return goja.Undefined()
}
logger.Debugf("File '%s' read by '%s'", path, scriptPath)
var arr = vm.NewArrayBuffer(data)
return vm.ToValue(arr)
},
"readTextFile": func(path string) string {
var data, err = os.ReadFile(path)
if err != nil {
logger.Error(err)
return ""
}
logger.Debugf("File '%s' read by '%s'", path, scriptPath)
return string(data)
},
"readDir": func(path string) goja.Value {
path, err = filepath.Abs(path)
if err != nil {
logger.Error(err)
return goja.Undefined()
}
var dir, err = os.ReadDir(path)
if err != nil {
logger.Error(err)
return goja.Undefined()
}
var d = make([]any, len(dir))
for i, f := range dir {
d[i] = map[string]any{
"name": f.Name(),
"isDirectory": f.IsDir(),
"isFile": f.Type().IsRegular(),
"path": filepath.Join(
path, f.Name(),
),
}
}
return vm.ToValue(
vm.NewArray(d...),
)
},
}
osModule = map[string]any{
"args": os.Args,
"getEnv": func(key string) string {
return os.Getenv(key)
},
"setEnv": func(key, value string) error {
logger.Debugf("Setting environment variable '%s'='%s'", key, value)
return os.Setenv(key, value)
},
"exec": func(cmd string, commandArgs ...string) goja.Value {
logger.Debugf(
"Executing command from '%s': %s %s",
scriptPath, cmd, strings.Join(commandArgs, " "),
)
// Parse the command arguments if the command is provided as a single string.
// Example: echo "Hello, World!" -> echo, ["Hello, World!"]
if strings.Index(cmd, " ") > 0 {
var s = strings.SplitN(cmd, " ", 2)
cmd = s[0]
if len(commandArgs) == 0 {
commandArgs, err = shellquote.Split(
s[1],
)
if err != nil {
logger.Errorf(
"failed to split command arguments for: %s: %s",
scriptPath, err,
)
return vm.ToValue(map[string]any{
"stdout": "",
"exitCode": 1,
"error": fmt.Sprintf(
"failed to split command arguments: %s", err,
),
})
}
} else {
logger.Warnf(
"command arguments are provided, but the command is already split for: %s",
scriptPath,
)
}
}
var command = exec.Command(cmd, commandArgs...)
var s = new(strings.Builder)
command.Stdout = s
command.Stderr = s
if err = command.Run(); err != nil {
logger.Errorf(
"failed to execute command: %s: %s",
scriptPath, err,
)
return vm.ToValue(map[string]any{
"stdout": s.String(),
"exitCode": 1,
"error": err,
})
}
logger.Debugf(
"Command executed from '%s': %s %s",
scriptPath, cmd, strings.Join(commandArgs, " "),
)
return vm.ToValue(map[string]any{
"stdout": s.String(),
"exitCode": command.ProcessState.ExitCode(),
"error": err,
})
},
}
)
vm.SetParserOptions()
cmd = js.NewScript(
"main",
js.WithVM(vm),
js.WithGlobals(map[string]any{
"quickgo": quickgoModule,
"os": osModule,
"fs": fsModule,
}),
)
cmd.AddFunc(func(vm *goja.Runtime) error {
vm.Set("console", &js.JSConsole{
Debug: logger.Debug,
Log: logger.Info,
Info: logger.Info,
Warn: logger.Warn,
Error: logger.Error,
Fatal: func(a ...any) {
logger.Fatal(1, a...)
},
})
vm.Set("base64Encode", func(data goja.Value) string {
if vm.InstanceOf(data, vm.Get("Uint8Array").ToObject(vm)) {
var arr = data.Export().([]byte)
return base64.StdEncoding.EncodeToString(arr)
}
if data, ok := data.Export().(goja.ArrayBuffer); ok {
return base64.StdEncoding.EncodeToString(data.Bytes())
}
var s = data.String()
return base64.StdEncoding.EncodeToString([]byte(s))
})
vm.Set("base64Decode", func(data string) goja.Value {
var arr, err = base64.StdEncoding.DecodeString(data)
if err != nil {
logger.Error(err)
return goja.Undefined()
}
var arrBuff = vm.NewArrayBuffer(arr)
return vm.ToValue(arrBuff)
})
return nil
})
logger.Debugf("Executing script '%s'", scriptPath)
result, err := cmd.Run(string(script))
if err != nil {
if _, ok := err.(*js.CommandError); !ok {
return errors.Wrapf(err, "failed to execute script '%s'", scriptName)
}
}
var s = fmt.Sprintf("Script '%s' executed with exit code %d", scriptName, result.Importance)
if result.Message != "" {
s = fmt.Sprintf("%s: %s", s, result.Message)
}
if result.Importance == 0 {
logger.Info(s)
} else {
logger.Error(s)
}
return js.ErrExitCode
}