feat: task manager

internal/fs/copy.go

@@ -7,9 +7,12 @@ import (
 	"github.com/alist-org/alist/v3/internal/driver"
 	"github.com/alist-org/alist/v3/internal/model"
 	"github.com/alist-org/alist/v3/internal/operations"
+	"github.com/alist-org/alist/v3/internal/task"
 	"github.com/pkg/errors"
 )
 
+var copyTaskManager = task.NewTaskManager()
+
 func CopyBetween2Accounts(ctx context.Context, srcAccount, dstAccount driver.Driver, srcPath, dstPath string) error {
 	srcFile, err := operations.Get(ctx, srcAccount, srcPath)
 	if err != nil {

internal/fs/write.go

@@ -2,10 +2,12 @@ package fs
 
 import (
 	"context"
+	"fmt"
 
 	"github.com/alist-org/alist/v3/internal/driver"
 	"github.com/alist-org/alist/v3/internal/model"
 	"github.com/alist-org/alist/v3/internal/operations"
+	"github.com/alist-org/alist/v3/internal/task"
 	"github.com/pkg/errors"
 )
 
@@ -42,32 +44,25 @@ func Rename(ctx context.Context, account driver.Driver, srcPath, dstName string)
 
 // Copy if in an account, call move method
 // if not, add copy task
-func Copy(ctx context.Context, account driver.Driver, srcPath, dstPath string) error {
+func Copy(ctx context.Context, account driver.Driver, srcPath, dstPath string) (bool, error) {
 	srcAccount, srcActualPath, err := operations.GetAccountAndActualPath(srcPath)
 	if err != nil {
-		return errors.WithMessage(err, "failed get src account")
+		return false, errors.WithMessage(err, "failed get src account")
 	}
 	dstAccount, dstActualPath, err := operations.GetAccountAndActualPath(srcPath)
 	if err != nil {
-		return errors.WithMessage(err, "failed get dst account")
+		return false, errors.WithMessage(err, "failed get dst account")
 	}
 	// copy if in an account, just call driver.Copy
 	if srcAccount.GetAccount() == dstAccount.GetAccount() {
-		return operations.Copy(ctx, account, srcActualPath, dstActualPath)
+		return false, operations.Copy(ctx, account, srcActualPath, dstActualPath)
 	}
 	// not in an account
-	return CopyBetween2Accounts(ctx, srcAccount, dstAccount, srcActualPath, dstActualPath)
+	// TODO add status set callback to put
-	// srcFile, err := operations.Get(ctx, srcAccount, srcActualPath)
+	copyTaskManager.Add(fmt.Sprintf("copy %s to %s", srcActualPath, dstActualPath), func(task *task.Task) error {
-	// if srcFile.IsDir() {
+		return CopyBetween2Accounts(context.TODO(), srcAccount, dstAccount, srcActualPath, dstActualPath)
-	// 	// TODO: recursive copy
+	})
-	// 	return nil
+	return true, nil
-	// }
-	// // TODO: add copy task, maybe like this:
-	// // operations.Link(ctx,srcAccount,srcActualPath,args)
-	// // get a Reader from link
-	// // boxing the Reader to a driver.FileStream
-	// // operations.Put(ctx,dstParentPath, stream)
-	// panic("TODO")
 }
 
 func Remove(ctx context.Context, account driver.Driver, path string) error {

internal/task/manager.go

@@ -0,0 +1,61 @@
+package task
+
+import (
+	"sync/atomic"
+
+	"github.com/alist-org/alist/v3/pkg/generic_sync"
+)
+
+func NewTaskManager() *TaskManager {
+	return &TaskManager{
+		tasks: generic_sync.MapOf[int64, *Task]{},
+		curID: 0,
+	}
+}
+
+type TaskManager struct {
+	curID int64
+	tasks generic_sync.MapOf[int64, *Task]
+}
+
+func (tm *TaskManager) AddTask(task *Task) {
+	task.ID = tm.curID
+	atomic.AddInt64(&tm.curID, 1)
+	tm.tasks.Store(task.ID, task)
+}
+
+func (tm *TaskManager) GetAll() []*Task {
+	return tm.tasks.Values()
+}
+
+func (tm *TaskManager) Get(id int64) (*Task, bool) {
+	return tm.tasks.Load(id)
+}
+
+func (tm *TaskManager) Remove(id int64) {
+	tm.tasks.Delete(id)
+}
+
+func (tm *TaskManager) RemoveFinished() {
+	tasks := tm.GetAll()
+	for _, task := range tasks {
+		if task.Status == FINISHED {
+			tm.Remove(task.ID)
+		}
+	}
+}
+
+func (tm *TaskManager) RemoveError() {
+	tasks := tm.GetAll()
+	for _, task := range tasks {
+		if task.Error != nil {
+			tm.Remove(task.ID)
+		}
+	}
+}
+
+func (tm *TaskManager) Add(name string, f Func) {
+	task := NewTask(name, f)
+	tm.AddTask(task)
+	go task.Run()
+}

internal/task/task.go

@@ -1,10 +1,36 @@
 // manage task, such as file upload, file copy between accounts, offline download, etc.
 package task
 
+type Func func(task *Task) error
+
+var (
+	PENDING  = "pending"
+	RUNNING  = "running"
+	FINISHED = "finished"
+)
+
 type Task struct {
-	Name     string
+	ID     int64
-	Status   string
+	Name   string
-	Error    error
+	Status string
-	Finish   bool
+	Error  error
-	Children []*Task
+	Func   Func
+}
+
+func NewTask(name string, func_ Func) *Task {
+	return &Task{
+		Name:   name,
+		Status: PENDING,
+		Func:   func_,
+	}
+}
+
+func (t *Task) SetStatus(status string) {
+	t.Status = status
+}
+
+func (t *Task) Run() {
+	t.Status = RUNNING
+	t.Error = t.Func(t)
+	t.Status = FINISHED
 }