feat: support post-task script hooks (#1265)

pkg/base/model.go

@@ -184,6 +184,7 @@ type DownloaderStoreConfig struct {
 	Extra                      map[string]any         `json:"extra"`
 	Proxy                      *DownloaderProxyConfig `json:"proxy"`
 	Webhook                    *WebhookConfig         `json:"webhook"`                    // Webhook is the webhook configuration
+	Script                     *ScriptConfig          `json:"script"`                     // Script is the script execution configuration
 	AutoTorrent                *AutoTorrentConfig     `json:"autoTorrent"`                // AutoTorrent is the auto torrent task creation configuration
 	Archive                    *ArchiveConfig         `json:"archive"`                    // Archive is the archive extraction configuration
 	AutoDeleteMissingFileTasks bool                   `json:"autoDeleteMissingFileTasks"` // AutoDeleteMissingFileTasks enables automatic deletion of tasks with missing files
@@ -202,6 +203,9 @@ func (cfg *DownloaderStoreConfig) Init() *DownloaderStoreConfig {
 	if cfg.Webhook == nil {
 		cfg.Webhook = &WebhookConfig{}
 	}
+	if cfg.Script == nil {
+		cfg.Script = &ScriptConfig{}
+	}
 	if cfg.AutoTorrent == nil {
 		cfg.AutoTorrent = &AutoTorrentConfig{
 			Enable:              false,
@@ -239,6 +243,9 @@ func (cfg *DownloaderStoreConfig) Merge(beforeCfg *DownloaderStoreConfig) *Downl
 	if cfg.Webhook == nil {
 		cfg.Webhook = beforeCfg.Webhook
 	}
+	if cfg.Script == nil {
+		cfg.Script = beforeCfg.Script
+	}
 	if cfg.AutoTorrent == nil {
 		cfg.AutoTorrent = beforeCfg.AutoTorrent
 	}
@@ -254,6 +261,12 @@ type WebhookConfig struct {
 	URLs   []string `json:"urls"`   // URLs is the list of webhook URLs
 }
 
+// ScriptConfig is the script execution configuration
+type ScriptConfig struct {
+	Enable bool     `json:"enable"` // Enable is the flag to enable/disable script execution
+	Paths  []string `json:"paths"`  // Paths is the list of script paths to execute
+}
+
 // AutoTorrentConfig is the auto torrent task creation configuration
 type AutoTorrentConfig struct {
 	Enable              bool `json:"enable"`              // Enable enables automatic BT task creation when downloading .torrent files

pkg/base/model_test.go

@@ -19,6 +19,7 @@ func TestDownloaderStoreConfig_Init(t *testing.T) {
 				ProtocolConfig: map[string]any{},
 				Proxy:          &DownloaderProxyConfig{},
 				Webhook:        &WebhookConfig{},
+				Script:         &ScriptConfig{},
 				AutoTorrent: &AutoTorrentConfig{
 					Enable:              false,
 					DeleteAfterDownload: false,
@@ -39,6 +40,7 @@ func TestDownloaderStoreConfig_Init(t *testing.T) {
 				ProtocolConfig: map[string]any{},
 				Proxy:          &DownloaderProxyConfig{},
 				Webhook:        &WebhookConfig{},
+				Script:         &ScriptConfig{},
 				AutoTorrent: &AutoTorrentConfig{
 					Enable:              false,
 					DeleteAfterDownload: false,
@@ -63,6 +65,7 @@ func TestDownloaderStoreConfig_Init(t *testing.T) {
 				},
 				Proxy:   &DownloaderProxyConfig{},
 				Webhook: &WebhookConfig{},
+				Script:  &ScriptConfig{},
 				AutoTorrent: &AutoTorrentConfig{
 					Enable:              false,
 					DeleteAfterDownload: false,
@@ -87,6 +90,7 @@ func TestDownloaderStoreConfig_Init(t *testing.T) {
 					Enable: true,
 				},
 				Webhook: &WebhookConfig{},
+				Script:  &ScriptConfig{},
 				AutoTorrent: &AutoTorrentConfig{
 					Enable:              false,
 					DeleteAfterDownload: false,
@@ -110,6 +114,7 @@ func TestDownloaderStoreConfig_Init(t *testing.T) {
 				ProtocolConfig: map[string]any{},
 				Proxy:          &DownloaderProxyConfig{},
 				Webhook:        &WebhookConfig{},
+				Script:         &ScriptConfig{},
 				AutoTorrent: &AutoTorrentConfig{
 					Enable:              true,
 					DeleteAfterDownload: true,
@@ -133,6 +138,7 @@ func TestDownloaderStoreConfig_Init(t *testing.T) {
 				ProtocolConfig: map[string]any{},
 				Proxy:          &DownloaderProxyConfig{},
 				Webhook:        &WebhookConfig{},
+				Script:         &ScriptConfig{},
 				AutoTorrent: &AutoTorrentConfig{
 					Enable:              false,
 					DeleteAfterDownload: false,
@@ -154,6 +160,7 @@ func TestDownloaderStoreConfig_Init(t *testing.T) {
 				Extra:          tt.fields.Extra,
 				Proxy:          tt.fields.Proxy,
 				Webhook:        tt.fields.Webhook,
+				Script:         tt.fields.Script,
 				AutoTorrent:    tt.fields.AutoTorrent,
 				Archive:        tt.fields.Archive,
 			}

pkg/download/downloader.go

@@ -995,6 +995,7 @@ func (d *Downloader) watch(task *Task) {
 	d.notifyRunning()
 	d.triggerOnDone(task)
 	d.triggerWebhooks(WebhookEventDownloadDone, task, nil)
+	d.triggerScripts(ScriptEventDownloadDone, task, nil)
 
 	if e, ok := task.Meta.Opts.Extra.(*http.OptsExtra); ok {
 		downloadFilePath := task.Meta.SingleFilepath()

pkg/download/script.go

@@ -0,0 +1,161 @@
+package download
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"runtime"
+	"time"
+)
+
+// ScriptEvent represents the type of script event
+type ScriptEvent string
+
+const (
+	ScriptEventDownloadDone  ScriptEvent = "DOWNLOAD_DONE"
+	ScriptEventDownloadError ScriptEvent = "DOWNLOAD_ERROR"
+)
+
+// ScriptData is the internal data structure for passing script information
+type ScriptData struct {
+	Event   ScriptEvent
+	Time    int64 // Unix timestamp in milliseconds
+	Payload *ScriptPayload
+}
+
+// ScriptPayload contains the task data
+type ScriptPayload struct {
+	Task *Task
+}
+
+// getScriptPaths extracts script paths from config
+func (d *Downloader) getScriptPaths() []string {
+	cfg := d.cfg.DownloaderStoreConfig
+	if cfg == nil {
+		return nil
+	}
+
+	// Check new script config
+	if cfg.Script != nil && cfg.Script.Enable && len(cfg.Script.Paths) > 0 {
+		paths := make([]string, 0, len(cfg.Script.Paths))
+		for _, path := range cfg.Script.Paths {
+			if path != "" {
+				paths = append(paths, path)
+			}
+		}
+		if len(paths) > 0 {
+			return paths
+		}
+	}
+
+	return nil
+}
+
+// executeScriptAtPath executes a single script with the given data
+// Returns any error that occurred during execution
+func (d *Downloader) executeScriptAtPath(scriptPath string, data *ScriptData) error {
+	if scriptPath == "" {
+		return fmt.Errorf("script path is empty")
+	}
+
+	// Check if script file exists
+	if _, err := os.Stat(scriptPath); os.IsNotExist(err) {
+		return fmt.Errorf("script file does not exist: %s", scriptPath)
+	}
+
+	// Determine the script interpreter based on file extension
+	var cmd *exec.Cmd
+	ext := filepath.Ext(scriptPath)
+	
+	switch ext {
+	case ".sh", ".bash":
+		cmd = exec.Command("bash", scriptPath)
+	case ".py":
+		cmd = exec.Command("python3", scriptPath)
+	case ".js":
+		cmd = exec.Command("node", scriptPath)
+	case ".bat", ".cmd":
+		// Windows batch files
+		if runtime.GOOS == "windows" {
+			cmd = exec.Command("cmd", "/c", scriptPath)
+		} else {
+			// Batch files are Windows-specific
+			return fmt.Errorf("batch files (.bat/.cmd) are only supported on Windows")
+		}
+	case ".ps1":
+		// PowerShell scripts
+		if runtime.GOOS == "windows" {
+			cmd = exec.Command("powershell", "-ExecutionPolicy", "Bypass", "-File", scriptPath)
+		} else {
+			// Try pwsh (PowerShell Core) on non-Windows systems
+			cmd = exec.Command("pwsh", "-File", scriptPath)
+		}
+	case "":
+		// No extension, try to execute directly (assumes shebang or executable)
+		cmd = exec.Command(scriptPath)
+	default:
+		// Unknown extension, try to execute directly
+		cmd = exec.Command(scriptPath)
+	}
+
+	// Set environment variables with task information
+	cmd.Env = append(os.Environ(),
+		fmt.Sprintf("GOPEED_EVENT=%s", data.Event),
+		fmt.Sprintf("GOPEED_TASK_ID=%s", data.Payload.Task.ID),
+		fmt.Sprintf("GOPEED_TASK_NAME=%s", data.Payload.Task.Name()),
+		fmt.Sprintf("GOPEED_TASK_STATUS=%s", data.Payload.Task.Status),
+	)
+
+	// Add task path using the same logic as task deletion
+	if data.Payload.Task.Meta != nil && data.Payload.Task.Meta.Res != nil {
+		var taskPath string
+		if data.Payload.Task.Meta.Res.Name != "" {
+			// Multi-file task (folder)
+			taskPath = data.Payload.Task.Meta.FolderPath()
+		} else {
+			// Single file task
+			taskPath = data.Payload.Task.Meta.SingleFilepath()
+		}
+		cmd.Env = append(cmd.Env,
+			fmt.Sprintf("GOPEED_TASK_PATH=%s", taskPath),
+		)
+	}
+
+	// Start and wait for the command to complete (no timeout)
+	return cmd.Run()
+}
+
+// triggerScripts executes all configured scripts
+func (d *Downloader) triggerScripts(event ScriptEvent, task *Task, err error) {
+	paths := d.getScriptPaths()
+	if len(paths) == 0 {
+		return
+	}
+
+	data := &ScriptData{
+		Event: event,
+		Time:  time.Now().UnixMilli(),
+		Payload: &ScriptPayload{
+			Task: task.clone(),
+		},
+	}
+
+	go d.executeScripts(paths, data)
+}
+
+func (d *Downloader) executeScripts(paths []string, data *ScriptData) {
+	for _, path := range paths {
+		if path == "" {
+			continue
+		}
+		go func(scriptPath string) {
+			err := d.executeScriptAtPath(scriptPath, data)
+			if err != nil {
+				d.Logger.Warn().Err(err).Str("path", scriptPath).Msg("script: failed to execute")
+				return
+			}
+			d.Logger.Debug().Str("path", scriptPath).Msg("script: executed successfully")
+		}(path)
+	}
+}

pkg/download/script_test.go

@@ -0,0 +1,203 @@
+package download
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+	"time"
+
+	"github.com/GopeedLab/gopeed/internal/fetcher"
+	"github.com/GopeedLab/gopeed/pkg/base"
+)
+
+func TestScript_NoScriptConfigured(t *testing.T) {
+	setupScriptTest(t, func(downloader *Downloader) {
+		// Create a mock task
+		task := NewTask()
+		task.Protocol = "http"
+		task.Meta = &mockFetcherMeta
+
+		// Trigger script (should not panic with no scripts configured)
+		downloader.triggerScripts(ScriptEventDownloadDone, task, nil)
+	})
+}
+
+func TestScript_GetScriptPaths_EmptyConfig(t *testing.T) {
+	setupScriptTest(t, func(downloader *Downloader) {
+		paths := downloader.getScriptPaths()
+		if paths != nil {
+			t.Errorf("Expected nil, got %v", paths)
+		}
+	})
+}
+
+func TestScript_GetScriptPaths_NoScriptConfig(t *testing.T) {
+	setupScriptTest(t, func(downloader *Downloader) {
+		cfg, _ := downloader.GetConfig()
+		cfg.Script = nil
+		downloader.PutConfig(cfg)
+
+		paths := downloader.getScriptPaths()
+		if paths != nil {
+			t.Errorf("Expected nil, got %v", paths)
+		}
+	})
+}
+
+func TestScript_GetScriptPaths_DisabledScript(t *testing.T) {
+	setupScriptTest(t, func(downloader *Downloader) {
+		cfg, _ := downloader.GetConfig()
+		cfg.Script = &base.ScriptConfig{
+			Enable: false,
+			Paths:  []string{"/path/to/script.sh"},
+		}
+		downloader.PutConfig(cfg)
+
+		paths := downloader.getScriptPaths()
+		if paths != nil {
+			t.Errorf("Expected nil for disabled script, got %v", paths)
+		}
+	})
+}
+
+func TestScript_GetScriptPaths_EmptyPaths(t *testing.T) {
+	setupScriptTest(t, func(downloader *Downloader) {
+		cfg, _ := downloader.GetConfig()
+		cfg.Script = &base.ScriptConfig{
+			Enable: true,
+			Paths:  []string{},
+		}
+		downloader.PutConfig(cfg)
+
+		paths := downloader.getScriptPaths()
+		if paths != nil {
+			t.Errorf("Expected nil for empty paths, got %v", paths)
+		}
+	})
+}
+
+func TestScript_GetScriptPaths_WithEmptyStrings(t *testing.T) {
+	setupScriptTest(t, func(downloader *Downloader) {
+		cfg, _ := downloader.GetConfig()
+		cfg.Script = &base.ScriptConfig{
+			Enable: true,
+			Paths:  []string{"/path/to/script1.sh", "", "/path/to/script2.sh", ""},
+		}
+		downloader.PutConfig(cfg)
+
+		paths := downloader.getScriptPaths()
+		if len(paths) != 2 {
+			t.Errorf("Expected 2 valid paths (ignoring empty strings), got %d: %v", len(paths), paths)
+		}
+		if paths[0] != "/path/to/script1.sh" || paths[1] != "/path/to/script2.sh" {
+			t.Errorf("Paths don't match expected values: %v", paths)
+		}
+	})
+}
+
+func TestScript_ExecuteScriptAtPath_EmptyPath(t *testing.T) {
+	setupScriptTest(t, func(downloader *Downloader) {
+		data := &ScriptData{
+			Event: ScriptEventDownloadDone,
+			Time:  time.Now().UnixMilli(),
+		}
+
+		err := downloader.executeScriptAtPath("", data)
+		if err == nil {
+			t.Error("Expected error for empty path")
+		}
+		if err.Error() != "script path is empty" {
+			t.Errorf("Expected 'script path is empty' error, got: %v", err)
+		}
+	})
+}
+
+func TestScript_ExecuteScriptAtPath_NonExistentFile(t *testing.T) {
+	setupScriptTest(t, func(downloader *Downloader) {
+		data := &ScriptData{
+			Event: ScriptEventDownloadDone,
+			Time:  time.Now().UnixMilli(),
+		}
+
+		err := downloader.executeScriptAtPath("/non/existent/script.sh", data)
+		if err == nil {
+			t.Error("Expected error for non-existent script")
+		}
+	})
+}
+
+func createDownloadDoneTask(t *testing.T, downloadDir, fileName string) (*Task, string) {
+	t.Helper()
+	content := []byte("downloaded file")
+	task := NewTask()
+	task.Protocol = "http"
+	task.Status = base.DownloadStatusDone
+	task.Meta = &fetcher.FetcherMeta{
+		Req: &base.Request{
+			URL: "https://example.com/" + fileName,
+		},
+		Opts: &base.Options{
+			Name: fileName,
+			Path: filepath.ToSlash(downloadDir),
+		},
+		Res: &base.Resource{
+			Size: int64(len(content)),
+			Files: []*base.FileInfo{
+				{Name: fileName, Size: int64(len(content))},
+			},
+		},
+	}
+
+	filePath := task.Meta.SingleFilepath()
+	filePathOS := filepath.FromSlash(filePath)
+	if err := os.MkdirAll(filepath.Dir(filePathOS), 0755); err != nil {
+		t.Fatalf("Failed to create download dir: %v", err)
+	}
+	if err := os.WriteFile(filePathOS, content, 0644); err != nil {
+		t.Fatalf("Failed to create download file: %v", err)
+	}
+	return task, filePath
+}
+
+func waitForFile(t *testing.T, path string, timeout time.Duration) {
+	t.Helper()
+	deadline := time.Now().Add(timeout)
+	for time.Now().Before(deadline) {
+		if _, err := os.Stat(path); err == nil {
+			return
+		}
+		time.Sleep(50 * time.Millisecond)
+	}
+	t.Fatalf("Timeout waiting for file: %s", path)
+}
+
+func getTestScriptPath(t *testing.T, name string) string {
+	t.Helper()
+	path := filepath.Join("testdata", "scripts", name)
+	if _, err := os.Stat(path); err != nil {
+		t.Fatalf("Missing test script %s: %v", path, err)
+	}
+	return path
+}
+
+func ensureScriptExecutable(t *testing.T, scriptPath string) {
+	t.Helper()
+	if filepath.Ext(scriptPath) != ".sh" {
+		return
+	}
+	if err := os.Chmod(scriptPath, 0755); err != nil {
+		t.Fatalf("Failed to chmod script: %v", err)
+	}
+}
+
+func setupScriptTest(t *testing.T, fn func(downloader *Downloader)) {
+	defaultDownloader.Setup()
+	defaultDownloader.cfg.StorageDir = ".test_storage"
+	defaultDownloader.cfg.DownloadDir = ".test_download"
+	defer func() {
+		defaultDownloader.Clear()
+		os.RemoveAll(defaultDownloader.cfg.StorageDir)
+		os.RemoveAll(defaultDownloader.cfg.DownloadDir)
+	}()
+	fn(defaultDownloader)
+}

pkg/download/script_unix_test.go

@@ -0,0 +1,117 @@
+//go:build !windows
+// +build !windows
+
+package download
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/GopeedLab/gopeed/pkg/base"
+)
+
+func TestScript_TriggerOnDone_MoveFile(t *testing.T) {
+	tmpDir := t.TempDir()
+	downloadDir := filepath.Join(tmpDir, "downloads")
+	destDir := filepath.Join(tmpDir, "moved")
+	task, taskPath := createDownloadDoneTask(t, downloadDir, "test.txt")
+	srcPath := filepath.FromSlash(taskPath)
+	destFile := filepath.Join(destDir, "test.txt")
+
+	scriptPath := getTestScriptPath(t, "move.sh")
+	ensureScriptExecutable(t, scriptPath)
+
+	setupScriptTest(t, func(downloader *Downloader) {
+		cfg, _ := downloader.GetConfig()
+		cfg.Script = &base.ScriptConfig{
+			Enable: true,
+			Paths:  []string{scriptPath},
+		}
+		downloader.PutConfig(cfg)
+
+		t.Setenv("GOPEED_TEST_DEST_DIR", destDir)
+		downloader.triggerScripts(ScriptEventDownloadDone, task, nil)
+
+		waitForFile(t, destFile, 3*time.Second)
+		if _, err := os.Stat(srcPath); !os.IsNotExist(err) {
+			t.Errorf("Expected source file to be moved, but it still exists: %s", srcPath)
+		}
+	})
+}
+
+func TestScript_MultipleScripts(t *testing.T) {
+	tmpDir := t.TempDir()
+	outputFile1 := filepath.Join(tmpDir, "output1.txt")
+	outputFile2 := filepath.Join(tmpDir, "output2.txt")
+	scriptPath1 := getTestScriptPath(t, "write_output1.sh")
+	ensureScriptExecutable(t, scriptPath1)
+	scriptPath2 := getTestScriptPath(t, "write_output2.sh")
+	ensureScriptExecutable(t, scriptPath2)
+
+	setupScriptTest(t, func(downloader *Downloader) {
+		cfg, _ := downloader.GetConfig()
+		cfg.Script = &base.ScriptConfig{
+			Enable: true,
+			Paths:  []string{scriptPath1, scriptPath2},
+		}
+		downloader.PutConfig(cfg)
+
+		downloadDir := filepath.Join(tmpDir, "downloads")
+		task, _ := createDownloadDoneTask(t, downloadDir, "multi.txt")
+
+		t.Setenv("GOPEED_TEST_OUTPUT_FILE_1", outputFile1)
+		t.Setenv("GOPEED_TEST_OUTPUT_FILE_2", outputFile2)
+		downloader.triggerScripts(ScriptEventDownloadDone, task, nil)
+
+		waitForFile(t, outputFile1, 3*time.Second)
+		waitForFile(t, outputFile2, 3*time.Second)
+	})
+}
+
+func TestScript_EnvironmentVariables(t *testing.T) {
+	tmpDir := t.TempDir()
+	scriptPath := getTestScriptPath(t, "env_dump.sh")
+	ensureScriptExecutable(t, scriptPath)
+	outputFile := filepath.Join(tmpDir, "env_output.txt")
+
+	setupScriptTest(t, func(downloader *Downloader) {
+		cfg, _ := downloader.GetConfig()
+		cfg.Script = &base.ScriptConfig{
+			Enable: true,
+			Paths:  []string{scriptPath},
+		}
+		downloader.PutConfig(cfg)
+
+		downloadDir := filepath.Join(tmpDir, "downloads")
+		task, taskPath := createDownloadDoneTask(t, downloadDir, "env.txt")
+
+		t.Setenv("GOPEED_TEST_OUTPUT_FILE", outputFile)
+		downloader.triggerScripts(ScriptEventDownloadDone, task, nil)
+
+		waitForFile(t, outputFile, 3*time.Second)
+		content, err := os.ReadFile(outputFile)
+		if err != nil {
+			t.Fatalf("Failed to read output file: %v", err)
+		}
+
+		output := string(content)
+		if !strings.Contains(output, "GOPEED_EVENT=DOWNLOAD_DONE") {
+			t.Errorf("Expected GOPEED_EVENT in output, got: %s", output)
+		}
+		if !strings.Contains(output, "GOPEED_TASK_ID="+task.ID) {
+			t.Errorf("Expected GOPEED_TASK_ID in output, got: %s", output)
+		}
+		if !strings.Contains(output, "GOPEED_TASK_NAME="+task.Name()) {
+			t.Errorf("Expected GOPEED_TASK_NAME in output, got: %s", output)
+		}
+		if !strings.Contains(output, "GOPEED_TASK_STATUS="+string(task.Status)) {
+			t.Errorf("Expected GOPEED_TASK_STATUS in output, got: %s", output)
+		}
+		if !strings.Contains(output, "GOPEED_TASK_PATH="+taskPath) {
+			t.Errorf("Expected GOPEED_TASK_PATH in output, got: %s", output)
+		}
+	})
+}

pkg/download/script_windows_test.go

@@ -0,0 +1,113 @@
+//go:build windows
+// +build windows
+
+package download
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/GopeedLab/gopeed/pkg/base"
+)
+
+func TestScript_TriggerOnDone_MoveFile(t *testing.T) {
+	tmpDir := t.TempDir()
+	downloadDir := filepath.Join(tmpDir, "downloads")
+	destDir := filepath.Join(tmpDir, "moved")
+	task, taskPath := createDownloadDoneTask(t, downloadDir, "test.txt")
+	srcPath := filepath.FromSlash(taskPath)
+	destFile := filepath.Join(destDir, "test.txt")
+
+	scriptPath := getTestScriptPath(t, "move.bat")
+
+	setupScriptTest(t, func(downloader *Downloader) {
+		cfg, _ := downloader.GetConfig()
+		cfg.Script = &base.ScriptConfig{
+			Enable: true,
+			Paths:  []string{scriptPath},
+		}
+		downloader.PutConfig(cfg)
+
+		t.Setenv("GOPEED_TEST_DEST_DIR", destDir)
+		downloader.triggerScripts(ScriptEventDownloadDone, task, nil)
+
+		waitForFile(t, destFile, 5*time.Second)
+		if _, err := os.Stat(srcPath); !os.IsNotExist(err) {
+			t.Errorf("Expected source file to be moved, but it still exists: %s", srcPath)
+		}
+	})
+}
+
+func TestScript_MultipleScripts(t *testing.T) {
+	tmpDir := t.TempDir()
+	outputFile1 := filepath.Join(tmpDir, "output1.txt")
+	outputFile2 := filepath.Join(tmpDir, "output2.txt")
+	scriptPath1 := getTestScriptPath(t, "write_output1.bat")
+	scriptPath2 := getTestScriptPath(t, "write_output2.bat")
+
+	setupScriptTest(t, func(downloader *Downloader) {
+		cfg, _ := downloader.GetConfig()
+		cfg.Script = &base.ScriptConfig{
+			Enable: true,
+			Paths:  []string{scriptPath1, scriptPath2},
+		}
+		downloader.PutConfig(cfg)
+
+		downloadDir := filepath.Join(tmpDir, "downloads")
+		task, _ := createDownloadDoneTask(t, downloadDir, "multi.txt")
+
+		t.Setenv("GOPEED_TEST_OUTPUT_FILE_1", outputFile1)
+		t.Setenv("GOPEED_TEST_OUTPUT_FILE_2", outputFile2)
+		downloader.triggerScripts(ScriptEventDownloadDone, task, nil)
+
+		waitForFile(t, outputFile1, 5*time.Second)
+		waitForFile(t, outputFile2, 5*time.Second)
+	})
+}
+
+func TestScript_EnvironmentVariables(t *testing.T) {
+	tmpDir := t.TempDir()
+	scriptPath := getTestScriptPath(t, "env_dump.bat")
+	outputFile := filepath.Join(tmpDir, "env_output.txt")
+
+	setupScriptTest(t, func(downloader *Downloader) {
+		cfg, _ := downloader.GetConfig()
+		cfg.Script = &base.ScriptConfig{
+			Enable: true,
+			Paths:  []string{scriptPath},
+		}
+		downloader.PutConfig(cfg)
+
+		downloadDir := filepath.Join(tmpDir, "downloads")
+		task, taskPath := createDownloadDoneTask(t, downloadDir, "env.txt")
+
+		t.Setenv("GOPEED_TEST_OUTPUT_FILE", outputFile)
+		downloader.triggerScripts(ScriptEventDownloadDone, task, nil)
+
+		waitForFile(t, outputFile, 5*time.Second)
+		content, err := os.ReadFile(outputFile)
+		if err != nil {
+			t.Fatalf("Failed to read output file: %v", err)
+		}
+
+		output := string(content)
+		if !strings.Contains(output, "GOPEED_EVENT=DOWNLOAD_DONE") {
+			t.Errorf("Expected GOPEED_EVENT in output, got: %s", output)
+		}
+		if !strings.Contains(output, "GOPEED_TASK_ID="+task.ID) {
+			t.Errorf("Expected GOPEED_TASK_ID in output, got: %s", output)
+		}
+		if !strings.Contains(output, "GOPEED_TASK_NAME="+task.Name()) {
+			t.Errorf("Expected GOPEED_TASK_NAME in output, got: %s", output)
+		}
+		if !strings.Contains(output, "GOPEED_TASK_STATUS="+string(task.Status)) {
+			t.Errorf("Expected GOPEED_TASK_STATUS in output, got: %s", output)
+		}
+		if !strings.Contains(output, "GOPEED_TASK_PATH="+taskPath) {
+			t.Errorf("Expected GOPEED_TASK_PATH in output, got: %s", output)
+		}
+	})
+}

pkg/download/testdata/scripts/env_dump.bat

@@ -0,0 +1,9 @@
+@echo off
+setlocal
+
+if "%GOPEED_TEST_OUTPUT_FILE%"=="" exit /b 2
+echo GOPEED_EVENT=%GOPEED_EVENT% > "%GOPEED_TEST_OUTPUT_FILE%"
+echo GOPEED_TASK_ID=%GOPEED_TASK_ID% >> "%GOPEED_TEST_OUTPUT_FILE%"
+echo GOPEED_TASK_NAME=%GOPEED_TASK_NAME% >> "%GOPEED_TEST_OUTPUT_FILE%"
+echo GOPEED_TASK_STATUS=%GOPEED_TASK_STATUS% >> "%GOPEED_TEST_OUTPUT_FILE%"
+echo GOPEED_TASK_PATH=%GOPEED_TASK_PATH% >> "%GOPEED_TEST_OUTPUT_FILE%"

pkg/download/testdata/scripts/env_dump.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+set -e
+
+if [ -z "$GOPEED_TEST_OUTPUT_FILE" ]; then
+  echo "GOPEED_TEST_OUTPUT_FILE is empty" >&2
+  exit 2
+fi
+
+echo "GOPEED_EVENT=$GOPEED_EVENT" > "$GOPEED_TEST_OUTPUT_FILE"
+echo "GOPEED_TASK_ID=$GOPEED_TASK_ID" >> "$GOPEED_TEST_OUTPUT_FILE"
+echo "GOPEED_TASK_NAME=$GOPEED_TASK_NAME" >> "$GOPEED_TEST_OUTPUT_FILE"
+echo "GOPEED_TASK_STATUS=$GOPEED_TASK_STATUS" >> "$GOPEED_TEST_OUTPUT_FILE"
+echo "GOPEED_TASK_PATH=$GOPEED_TASK_PATH" >> "$GOPEED_TEST_OUTPUT_FILE"

pkg/download/testdata/scripts/move.bat

@@ -0,0 +1,8 @@
+@echo off
+setlocal
+
+if "%GOPEED_TEST_DEST_DIR%"=="" exit /b 2
+set "SRC=%GOPEED_TASK_PATH:/=\%"
+set "DEST=%GOPEED_TEST_DEST_DIR%"
+if not exist "%DEST%" mkdir "%DEST%"
+move /Y "%SRC%" "%DEST%\" >nul

pkg/download/testdata/scripts/move.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+set -e
+
+if [ -z "$GOPEED_TEST_DEST_DIR" ]; then
+  echo "GOPEED_TEST_DEST_DIR is empty" >&2
+  exit 2
+fi
+
+mkdir -p "$GOPEED_TEST_DEST_DIR"
+mv "$GOPEED_TASK_PATH" "$GOPEED_TEST_DEST_DIR/"

pkg/download/testdata/scripts/write_output1.bat

@@ -0,0 +1,5 @@
+@echo off
+setlocal
+
+if "%GOPEED_TEST_OUTPUT_FILE_1%"=="" exit /b 2
+echo Script 1 > "%GOPEED_TEST_OUTPUT_FILE_1%"

pkg/download/testdata/scripts/write_output1.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+set -e
+
+if [ -z "$GOPEED_TEST_OUTPUT_FILE_1" ]; then
+  echo "GOPEED_TEST_OUTPUT_FILE_1 is empty" >&2
+  exit 2
+fi
+
+echo "Script 1" > "$GOPEED_TEST_OUTPUT_FILE_1"

pkg/download/testdata/scripts/write_output2.bat

@@ -0,0 +1,5 @@
+@echo off
+setlocal
+
+if "%GOPEED_TEST_OUTPUT_FILE_2%"=="" exit /b 2
+echo Script 2 > "%GOPEED_TEST_OUTPUT_FILE_2%"

pkg/download/testdata/scripts/write_output2.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+set -e
+
+if [ -z "$GOPEED_TEST_OUTPUT_FILE_2" ]; then
+  echo "GOPEED_TEST_OUTPUT_FILE_2 is empty" >&2
+  exit 2
+fi
+
+echo "Script 2" > "$GOPEED_TEST_OUTPUT_FILE_2"