Terminal: Don't chdir() but pass the working directory down to _Spawn().

If we change our current directory, it will be retained as a reference
down inside the VFS, preventing filesystems from being unmounted,
among other things.

Fixes #19684.

src/apps/terminal/Arguments.cpp

@@ -47,8 +47,7 @@ Arguments::~Arguments()
 void
 Arguments::Parse(int argc, const char* const* argv)
 {
-	int argi;
-	for (argi = 1; argi < argc; argi ++) {
+	for (int argi = 1; argi < argc; argi++) {
 		const char* arg = argv[argi];
 
 		if (*arg == '-') {
@@ -56,13 +55,13 @@ Arguments::Parse(int argc, const char* const* argv)
 				fUsageRequested = true;
 			else if (strcmp(arg, "-t") == 0 || strcmp(arg, "--title") == 0) {
 				// title
-				if (argi >= argc)
+				if ((argi + 1) >= argc)
 					fUsageRequested = true;
 				else
 					fTitle = argv[++argi];
 			} else if (strcmp(arg, "-w") == 0
 					|| strcmp(arg, "--working-directory") == 0) {
-				if (argi >= argc)
+				if ((argi + 1) >= argc)
 					fUsageRequested = true;
 				else
 					fWorkingDirectory = argv[++argi];

src/apps/terminal/Arguments.h

@@ -1,5 +1,5 @@
 /*
- * Copyright 2005-2018, Haiku, Inc. All rights reserved.
+ * Copyright 2005-2025, Haiku, Inc. All rights reserved.
  * Copyright 2005, Ingo Weinhold, <[email protected]>
  *
  * Distributed under the terms of the MIT License.
@@ -8,12 +8,12 @@
  *	Jeremiah Bailey, <[email protected]>
  *	Ingo Weinhold, <[email protected]>
  */
-
-
 #ifndef ARGUMENTS_H
 #define ARGUMENTS_H
 
+
 #include <Rect.h>
+#include <String.h>
 
 class Arguments {
 public:
@@ -23,8 +23,8 @@ public:
 	void Parse(int argc, const char* const* argv);
 
 	BRect Bounds() const			{ return fBounds; }
-	const char* Title() const		{ return fTitle; }
-	const char* WorkingDir() const	{ return fWorkingDirectory; }
+	BString Title() const			{ return fTitle; }
+	BString WorkingDir() const		{ return fWorkingDirectory; }
 	bool StandardShell() const		{ return fStandardShell; }
 	bool FullScreen() const			{ return fFullScreen; }
 	bool UsageRequested() const		{ return fUsageRequested; }
@@ -39,8 +39,8 @@ private:
 	bool			fFullScreen;
 	int				fShellArgumentCount;
 	const char**	fShellArguments;
-	const char*		fTitle;
-	const char*		fWorkingDirectory;
+	BString			fTitle;
+	BString			fWorkingDirectory;
 };
 
 

src/apps/terminal/TermApp.cpp

@@ -62,7 +62,6 @@ TermApp::TermApp()
 	BApplication(TERM_SIGNATURE),
 	fChildCleanupThread(-1),
 	fTerminating(false),
-	fStartFullscreen(false),
 	fTermWindow(NULL),
 	fArgs(NULL)
 {
@@ -137,7 +136,7 @@ TermApp::ReadyToRun()
 	}
 
 	// using BScreen::Frame isn't enough
-	if (fStartFullscreen)
+	if (fArgs->FullScreen())
 		BMessenger(fTermWindow).SendMessage(FULLSCREEN);
 }
 
@@ -205,16 +204,6 @@ TermApp::ArgvReceived(int32 argc, char **argv)
 		PostMessage(B_QUIT_REQUESTED);
 		return;
 	}
-
-	if (fArgs->Title() != NULL)
-		fWindowTitle = fArgs->Title();
-
-	if (fArgs->WorkingDir() != NULL) {
-		fWorkingDirectory = fArgs->WorkingDir();
-		chdir(fWorkingDirectory);
-	}
-
-	fStartFullscreen = fArgs->FullScreen();
 }
 
 
@@ -239,7 +228,6 @@ TermApp::RefsReceived(BMessage* message)
 
 	// if App opened by Pref file
 	if (strcmp(mimetype, PREFFILE_MIMETYPE) == 0) {
-
 		BEntry ent(&ref);
 		BPath path(&ent);
 		PrefHandler::Default()->OpenText(path.Path());
@@ -259,7 +247,7 @@ status_t
 TermApp::_MakeTermWindow()
 {
 	try {
-		fTermWindow = new TermWindow(fWindowTitle, fArgs);
+		fTermWindow = new TermWindow(*fArgs);
 	} catch (int error) {
 		return (status_t)error;
 	} catch (...) {

src/apps/terminal/TermApp.h

@@ -55,9 +55,6 @@ private:
 private:
 			thread_id			fChildCleanupThread;
 			bool				fTerminating;
-			bool				fStartFullscreen;
-			BString				fWindowTitle;
-			BString				fWorkingDirectory;
 
 			BWindow*			fTermWindow;
 			Arguments*			fArgs;

src/apps/terminal/TermWindow.cpp

@@ -181,9 +181,9 @@ struct TermWindow::Session {
 // #pragma mark - TermWindow
 
 
-TermWindow::TermWindow(const BString& title, Arguments* args)
+TermWindow::TermWindow(const Arguments& args)
 	:
-	BWindow(BRect(0, 0, 0, 0), title, B_DOCUMENT_WINDOW,
+	BWindow(BRect(0, 0, 0, 0), args.Title(), B_DOCUMENT_WINDOW,
 		B_CURRENT_WORKSPACE | B_QUIT_ON_WINDOW_CLOSE),
 	fTitleUpdateRunner(this, BMessage(kUpdateTitles), 1000000),
 	fNextSessionID(0),
@@ -216,7 +216,7 @@ TermWindow::TermWindow(const BString& title, Arguments* args)
 	get_key_map(&fKeymap, &fKeymapChars);
 
 	// apply the title settings
-	fTitle.pattern = title;
+	fTitle.pattern = args.Title();
 	if (fTitle.pattern.Length() == 0) {
 		fTitle.pattern = B_TRANSLATE_SYSTEM_NAME("Terminal");
 
@@ -228,7 +228,7 @@ TermWindow::TermWindow(const BString& title, Arguments* args)
 		fTitle.patternUserDefined = true;
 
 	fTitle.title = fTitle.pattern;
-	fTitle.pattern = title;
+	fTitle.pattern = args.Title();
 
 	_TitleSettingsChanged();
 
@@ -259,7 +259,7 @@ TermWindow::TermWindow(const BString& title, Arguments* args)
 
 	// init the GUI and add a tab
 	_InitWindow();
-	_AddTab(args);
+	_AddTab(&args, args.WorkingDir());
 
 	// Announce our window as no longer minimized. That's not true, since it's
 	// still hidden at this point, but it will be shown very soon.
@@ -749,19 +749,22 @@ TermWindow::MessageReceived(BMessage *message)
 		{
 			// Set our current working directory to that of the active tab, so
 			// that the new terminal and its shell inherit it.
-			// Note: That's a bit lame. We should rather fork() and change the
-			// CWD in the child, but since ATM there aren't any side effects of
-			// changing our CWD, we save ourselves the trouble.
+			const char* argv[] = {NULL, NULL, NULL};
+			int32 argc = 0;
+
 			ActiveProcessInfo activeProcessInfo;
-			if (_ActiveTermView()->GetActiveProcessInfo(activeProcessInfo))
-				chdir(activeProcessInfo.CurrentDirectory());
+			if (_ActiveTermView()->GetActiveProcessInfo(activeProcessInfo)) {
+				argv[0] = "-w";
+				argv[1] = activeProcessInfo.CurrentDirectory();
+				argc = 2;
+			}
 
 			app_info info;
 			be_app->GetAppInfo(&info);
 
 			// try launching two different ways to work around possible problems
-			if (be_roster->Launch(&info.ref) != B_OK)
-				be_roster->Launch(TERM_SIGNATURE);
+			if (be_roster->Launch(&info.ref, argc, argv) != B_OK)
+				be_roster->Launch(TERM_SIGNATURE, argc, argv);
 			break;
 		}
 
@@ -1341,7 +1344,7 @@ TermWindow::_NewTab()
 
 
 void
-TermWindow::_AddTab(Arguments* args, const BString& currentDirectory)
+TermWindow::_AddTab(const Arguments* args, const BString& currentDirectory)
 {
 	int argc = 0;
 	const char* const* argv = NULL;

src/apps/terminal/TermWindow.h

@@ -58,8 +58,7 @@ class TermWindow : public BWindow, private SmartTabView::Listener,
 	private TermView::Listener, private SetTitleDialog::Listener,
 	private TerminalRoster::Listener {
 public:
-								TermWindow(const BString& title,
-									Arguments* args);
+								TermWindow(const Arguments& args);
 	virtual						~TermWindow();
 
 			void				SessionChanged();
@@ -154,7 +153,7 @@ private:
 			void				_DoPrint();
 
 			void				_NewTab();
-			void				_AddTab(Arguments* args,
+			void				_AddTab(const Arguments* args,
 									const BString& currentDirectory
 										= BString());
 			void				_RemoveTab(int32 index);