custominstall: fix incorrect return value causing TypeError in ci-gui

Prevents the issue of one having a corrupt header or something causing an issue in the middle of writing.

.gitignore

@@ -15,3 +15,6 @@ venv/
 
 # JetBrains
 .idea/
+=======
+
+*.pyc

README.md

@@ -1,17 +1,30 @@
+[![License](https://img.shields.io/badge/License-MIT-blue.svg)]() ![Releases](https://img.shields.io/github/downloads/ihaveamac/custom-install/total.svg)
+
 # custom-install
 Experimental script to automate the process of a manual title install for Nintendo 3DS. Originally created late June 2019.
 
 ## Summary
+
+### Windows standalone
+
 1. [Dump boot9.bin and movable.sed](https://ihaveamac.github.io/dump.html) from a 3DS system.
-2. Install the packages:
-  * Windows: `py -3 -m pip install --user -r requirements.txt`
+2. Download the [latest releases](https://github.com/ihaveamac/custom-install/releases).
+3. Extract and run ci-gui. Read `windows-quickstart.txt`.
+
+### With installed Python
+Note for Windows users: Enabling "Add Python 3.X to PATH" is **NOT** required! Python is installed with the `py` launcher by default.
+
+1. [Dump boot9.bin and movable.sed](https://ihaveamac.github.io/dump.html) from a 3DS system.
+2. Download the repo ([zip link](https://github.com/ihaveamac/custom-install/archive/module-newer-gui.zip) or `git clone`)
+3. Install the packages:
+  * Windows: Double-click `windows-install-dependencies.py`
+    * Alternate manual method: `py -3 -m pip install --user -r requirements-win32.txt`
   * macOS/Linux: `python3 -m pip install --user -r requirements.txt`
-3. Download the repo ([zip link](https://github.com/ihaveamac/custom-install/archive/master.zip) or `git clone`)
 4. Run `custominstall.py` with boot9.bin, movable.sed, path to the SD root, and CIA files to install (see Usage section).
 5. Download and use [custom-install-finalize](https://github.com/ihaveamac/custom-install/releases) on the 3DS system to finish the install.
 
 ## Setup
-Linux users must build [wwylele/save3ds](https://github.com/wwylele/save3ds) and place `save3ds_fuse` in `bin/linux`. Just install [rust using rustup](https://www.rust-lang.org/tools/install), then compile with: `cargo build`. Your compiled binary is located in `target/debug/save3ds_fuse`, copy it to `bin/linux`.
+Linux users must build [wwylele/save3ds](https://github.com/wwylele/save3ds) and place `save3ds_fuse` in `bin/linux`. Install [rust using rustup](https://www.rust-lang.org/tools/install), then compile with: `cargo build`. The compiled binary is located in `target/debug/save3ds_fuse`, copy it to `bin/linux`.
 
 movable.sed is required and can be provided with `-m` or `--movable`.
 
@@ -25,7 +38,7 @@ boot9 is needed:
 
 A [SeedDB](https://github.com/ihaveamac/3DS-rom-tools/wiki/SeedDB-list) is needed for newer games (2015+) that use seeds.  
 SeedDB is checked in order of:
-* `--seeddb` argument (if set)
+* `-s` or `--seeddb` argument (if set)
 * `SEEDDB_PATH` environment variable (if set)
 * `%APPDATA%\3ds\seeddb.bin` (Windows-specific)
 * `~/Library/Application Support/3ds/seeddb.bin` (macOS-specific)
@@ -47,9 +60,38 @@ python3 custominstall.py -b boot9.bin -m movable.sed --sd /Volumes/GM9SD file.ci
 python3 custominstall.py -b boot9.bin -m movable.sed --sd /media/GM9SD file.cia file2.cia
 ```
 
-## License/Credits
-`pyctr/` is from [ninfs `795373d`](https://github.com/ihaveamac/ninfs/tree/795373db07be0cacd60215d8eccf16fe03535984/ninfs/pyctr).
+## GUI
+A GUI is provided to make the process easier.
 
+### GUI Setup
+Linux users may need to install a Tk package:
+- Ubuntu/Debian: `sudo apt install python3-tk`
+- Manjaro/Arch: `sudo pacman -S tk`
+
+Install the requirements listed in "Summary", then run `ci-gui.py`.
+
+## Development
+
+### Building Windows standalone
+
+Using a 32-bit version of Python is recommended to build a version to be distributed.
+
+A [virtual environment](https://packaging.python.org/guides/installing-using-pip-and-virtual-environments/#creating-a-virtual-environment) is recommended to isolate the packages from system directories. The build script `make-standalone.bat` assumes that the dependencies are in PATH.
+
+Install the dependencies, plus cx-Freeze. In a virtual environment, the specific Python version doesn't need to be requested.
+```batch
+pip install cx-freeze -r requirements-win32.txt
+```
+
+Copy `custom-install-finalize.3dsx` to the project root, this will be copied to the build directory and included in the final archive.
+
+Run `make-standalone.bat`. This will run cxfreeze and make a standalone version at `dist\custom-install-standalone.zip`
+
+## License/Credits
 [save3ds by wwylele](https://github.com/wwylele/save3ds) is used to interact with the Title Database (details in `bin/README`).
 
+Thanks to @nek0bit for redesigning `custominstall.py` to work as a module, and for implementing an earlier GUI.
+
+Thanks to @LyfeOnEdge from the [brewtools Discord](https://brewtools.dev) for designing the second version of the GUI. Special thanks to CrafterPika and archbox for testing.
+
 Thanks to @BpyH64 for [researching how to generate the cmacs](https://github.com/d0k3/GodMode9/issues/340#issuecomment-487916606).

ci-gui.py

@@ -0,0 +1,446 @@
+# This file is a part of custom-install.py.
+#
+# custom-install is copyright (c) 2019-2020 Ian Burgwin
+# This file is licensed under The MIT License (MIT).
+# You can find the full license text in LICENSE.md in the root of this project.
+
+from os import environ, scandir
+from os.path import abspath, join, isfile, dirname
+from sys import exc_info, platform
+from threading import Thread, Lock
+from time import strftime
+from traceback import format_exception
+import tkinter as tk
+import tkinter.ttk as ttk
+import tkinter.filedialog as fd
+import tkinter.messagebox as mb
+from typing import TYPE_CHECKING
+
+from pyctr.crypto.engine import b9_paths
+from pyctr.util import config_dirs
+
+from custominstall import CustomInstall
+
+if TYPE_CHECKING:
+    from typing import List
+
+is_windows = platform == 'win32'
+taskbar = None
+if is_windows:
+    try:
+        import comtypes.client as cc
+
+        tbl = cc.GetModule('TaskbarLib.tlb')
+
+        taskbar = cc.CreateObject('{56FDF344-FD6D-11D0-958A-006097C9A090}', interface=tbl.ITaskbarList3)
+        taskbar.HrInit()
+    except ModuleNotFoundError:
+        pass
+
+file_parent = dirname(abspath(__file__))
+
+# automatically load boot9 if it's in the current directory
+b9_paths.insert(0, join(file_parent, 'boot9.bin'))
+b9_paths.insert(0, join(file_parent, 'boot9_prot.bin'))
+
+seeddb_paths = [join(x, 'seeddb.bin') for x in config_dirs]
+try:
+    seeddb_paths.insert(0, environ['SEEDDB_PATH'])
+except KeyError:
+    pass
+# automatically load seeddb if it's in the current directory
+seeddb_paths.insert(0, join(file_parent, 'seeddb.bin'))
+
+
+def find_first_file(paths):
+    for p in paths:
+        if isfile(p):
+            return p
+
+
+# find boot9, seeddb, and movable.sed to auto-select in the gui
+default_b9_path = find_first_file(b9_paths)
+default_seeddb_path = find_first_file(seeddb_paths)
+default_movable_sed_path = find_first_file([join(file_parent, 'movable.sed')])
+
+
+class ConsoleFrame(ttk.Frame):
+    def __init__(self, parent: tk.BaseWidget = None, starting_lines: 'List[str]' = None):
+        super().__init__(parent)
+        self.parent = parent
+
+        self.rowconfigure(0, weight=1)
+        self.columnconfigure(0, weight=1)
+
+        scrollbar = ttk.Scrollbar(self, orient=tk.VERTICAL)
+        scrollbar.grid(row=0, column=1, sticky=tk.NSEW)
+
+        self.text = tk.Text(self, highlightthickness=0, wrap='word', yscrollcommand=scrollbar.set)
+        self.text.grid(row=0, column=0, sticky=tk.NSEW)
+
+        scrollbar.config(command=self.text.yview)
+
+        if starting_lines:
+            for l in starting_lines:
+                self.text.insert(tk.END, l + '\n')
+
+        self.text.see(tk.END)
+        self.text.configure(state=tk.DISABLED)
+
+    def log(self, *message, end='\n', sep=' '):
+        self.text.configure(state=tk.NORMAL)
+        self.text.insert(tk.END, sep.join(message) + end)
+        self.text.see(tk.END)
+        self.text.configure(state=tk.DISABLED)
+
+
+class CustomInstallGUI(ttk.Frame):
+    console = None
+
+    def __init__(self, parent: tk.Tk = None):
+        super().__init__(parent)
+        self.parent = parent
+
+        self.lock = Lock()
+
+        self.log_messages = []
+
+        self.hwnd = None  # will be set later
+
+        self.rowconfigure(2, weight=1)
+        self.columnconfigure(0, weight=1)
+
+        if taskbar:
+            # this is so progress can be shown in the taskbar
+            def setup_tab():
+                self.hwnd = int(parent.wm_frame(), 16)
+                taskbar.ActivateTab(self.hwnd)
+
+            self.after(100, setup_tab)
+
+        # ---------------------------------------------------------------- #
+        # create file pickers for base files
+        file_pickers = ttk.Frame(self)
+        file_pickers.grid(row=0, column=0, sticky=tk.EW)
+        file_pickers.columnconfigure(1, weight=1)
+
+        self.file_picker_textboxes = {}
+
+        def sd_callback():
+            f = fd.askdirectory(parent=parent, title='Select SD root (the directory or drive that contains '
+                                                     '"Nintendo 3DS")', initialdir=file_parent, mustexist=True)
+            if f:
+                sd_selected.delete('1.0', tk.END)
+                sd_selected.insert(tk.END, f)
+
+                sd_msed_path = find_first_file([join(f, 'gm9', 'out', 'movable.sed'), join(f, 'movable.sed')])
+                if sd_msed_path:
+                    self.log('Found movable.sed on SD card at ' + sd_msed_path)
+                    box = self.file_picker_textboxes['movable.sed']
+                    box.delete('1.0', tk.END)
+                    box.insert(tk.END, sd_msed_path)
+
+        sd_type_label = ttk.Label(file_pickers, text='SD root')
+        sd_type_label.grid(row=0, column=0)
+
+        sd_selected = tk.Text(file_pickers, wrap='none', height=1)
+        sd_selected.grid(row=0, column=1, sticky=tk.EW)
+
+        sd_button = ttk.Button(file_pickers, text='...', command=sd_callback)
+        sd_button.grid(row=0, column=2)
+
+        self.file_picker_textboxes['sd'] = sd_selected
+
+        # This feels so wrong.
+        def create_required_file_picker(type_name, types, default, row):
+            def internal_callback():
+                f = fd.askopenfilename(parent=parent, title='Select ' + type_name, filetypes=types,
+                                       initialdir=file_parent)
+                if f:
+                    selected.delete('1.0', tk.END)
+                    selected.insert(tk.END, f)
+
+            type_label = ttk.Label(file_pickers, text=type_name)
+            type_label.grid(row=row, column=0)
+
+            selected = tk.Text(file_pickers, wrap='none', height=1)
+            selected.grid(row=row, column=1, sticky=tk.EW)
+            if default:
+                selected.insert(tk.END, default)
+
+            button = ttk.Button(file_pickers, text='...', command=internal_callback)
+            button.grid(row=row, column=2)
+
+            self.file_picker_textboxes[type_name] = selected
+
+        create_required_file_picker('boot9', [('boot9 file', '*.bin')], default_b9_path, 1)
+        create_required_file_picker('seeddb', [('seeddb file', '*.bin')], default_seeddb_path, 2)
+        create_required_file_picker('movable.sed', [('movable.sed file', '*.sed')], default_movable_sed_path, 3)
+
+        # ---------------------------------------------------------------- #
+        # create buttons to add cias
+        listbox_buttons = ttk.Frame(self)
+        listbox_buttons.grid(row=1, column=0)
+
+        def add_cias_callback():
+            files = fd.askopenfilenames(parent=parent, title='Select CIA files', filetypes=[('CIA files', '*.cia')],
+                                        initialdir=file_parent)
+            for f in files:
+                self.add_cia(f)
+
+        add_cias = ttk.Button(listbox_buttons, text='Add CIAs', command=add_cias_callback)
+        add_cias.grid(row=0, column=0)
+
+        def add_cias_callback():
+            d = fd.askdirectory(parent=parent, title='Select folder containing title contents in CDN format',
+                                initialdir=file_parent)
+            if d:
+                if isfile(join(d, 'tmd')):
+                    self.add_cia(d)
+                else:
+                    self.show_error('tmd file not found in the CDN directory:\n' + d)
+
+        add_cias = ttk.Button(listbox_buttons, text='Add CDN title folder', command=add_cias_callback)
+        add_cias.grid(row=0, column=1)
+
+        def add_dirs_callback():
+            d = fd.askdirectory(parent=parent, title='Select folder containing CIA files', initialdir=file_parent)
+            if d:
+                for f in scandir(d):
+                    if f.name.lower().endswith('.cia'):
+                        self.add_cia(f.path)
+
+        add_dirs = ttk.Button(listbox_buttons, text='Add folder', command=add_dirs_callback)
+        add_dirs.grid(row=0, column=2)
+
+        def remove_selected_callback():
+            indexes = self.cia_listbox.curselection()
+            n = 0
+            for i in indexes:
+                self.cia_listbox.delete(i - n)
+                n += 1
+
+        remove_selected = ttk.Button(listbox_buttons, text='Remove selected', command=remove_selected_callback)
+        remove_selected.grid(row=0, column=3)
+
+        # ---------------------------------------------------------------- #
+        # create listbox
+        listbox_frame = ttk.Frame(self)
+        listbox_frame.grid(row=2, column=0, sticky=tk.NSEW)
+        listbox_frame.rowconfigure(0, weight=1)
+        listbox_frame.columnconfigure(0, weight=1)
+
+        cia_listbox_scrollbar = ttk.Scrollbar(listbox_frame, orient=tk.VERTICAL)
+        cia_listbox_scrollbar.grid(row=0, column=1, sticky=tk.NSEW)
+
+        self.cia_listbox = tk.Listbox(listbox_frame, highlightthickness=0, yscrollcommand=cia_listbox_scrollbar.set,
+                                      selectmode=tk.EXTENDED)
+        self.cia_listbox.grid(row=0, column=0, sticky=tk.NSEW)
+
+        cia_listbox_scrollbar.config(command=self.cia_listbox.yview)
+
+        # ---------------------------------------------------------------- #
+        # create progressbar
+
+        self.progressbar = ttk.Progressbar(self, orient=tk.HORIZONTAL, mode='determinate')
+        self.progressbar.grid(row=3, column=0, sticky=tk.NSEW)
+
+        # ---------------------------------------------------------------- #
+        # create start and console buttons
+
+        control_frame = ttk.Frame(self)
+        control_frame.grid(row=4, column=0)
+
+        self.skip_contents_var = tk.IntVar()
+        skip_contents_checkbox = ttk.Checkbutton(control_frame, text='Skip contents (only add to title database)',
+                                                 variable=self.skip_contents_var)
+        skip_contents_checkbox.grid(row=0, column=0)
+
+        self.overwrite_saves_var = tk.IntVar()
+        overwrite_saves_checkbox = ttk.Checkbutton(control_frame, text='Overwrite existing saves',
+                                                   variable=self.overwrite_saves_var)
+        overwrite_saves_checkbox.grid(row=0, column=1)
+
+        show_console = ttk.Button(control_frame, text='Show console', command=self.open_console)
+        show_console.grid(row=0, column=2)
+
+        start = ttk.Button(control_frame, text='Start install', command=self.start_install)
+        start.grid(row=0, column=3)
+
+        self.status_label = ttk.Label(self, text='Waiting...')
+        self.status_label.grid(row=5, column=0, sticky=tk.NSEW)
+
+        self.log('custom-install by ihaveamac', status=False)
+        self.log('https://github.com/ihaveamac/custom-install', status=False)
+
+        if is_windows and not taskbar:
+            self.log('Note: comtypes module not found.')
+            self.log('Note: Progress will not be shown in the Windows taskbar.')
+
+        self.log('Ready.')
+
+        self.disable_during_install = (add_cias, add_dirs, remove_selected, start, *self.file_picker_textboxes.values())
+
+    def add_cia(self, path):
+        path = abspath(path)
+        self.cia_listbox.insert(tk.END, path)
+
+    def open_console(self):
+        if self.console:
+            self.console.parent.lift()
+            self.console.focus()
+        else:
+            console_window = tk.Toplevel()
+            console_window.title('custom-install Console')
+
+            self.console = ConsoleFrame(console_window, self.log_messages)
+            self.console.pack(fill=tk.BOTH, expand=True)
+
+            def close():
+                with self.lock:
+                    try:
+                        console_window.destroy()
+                    except:
+                        pass
+                    self.console = None
+
+            console_window.focus()
+
+            console_window.protocol('WM_DELETE_WINDOW', close)
+
+    def log(self, line, status=True):
+        with self.lock:
+            log_msg = f"{strftime('%H:%M:%S')} - {line}"
+            self.log_messages.append(log_msg)
+            if self.console:
+                self.console.log(log_msg)
+
+            if status:
+                self.status_label.config(text=line)
+
+    def show_error(self, message):
+        mb.showerror('Error', message, parent=self.parent)
+
+    def ask_warning(self, message):
+        return mb.askokcancel('Warning', message, parent=self.parent)
+
+    def show_info(self, message):
+        mb.showinfo('Info', message, parent=self.parent)
+
+    def disable_buttons(self):
+        for b in self.disable_during_install:
+            b.config(state=tk.DISABLED)
+
+    def enable_buttons(self):
+        for b in self.disable_during_install:
+            b.config(state=tk.NORMAL)
+
+    def start_install(self):
+        sd_root = self.file_picker_textboxes['sd'].get('1.0', tk.END).strip()
+        boot9 = self.file_picker_textboxes['boot9'].get('1.0', tk.END).strip()
+        seeddb = self.file_picker_textboxes['seeddb'].get('1.0', tk.END).strip()
+        movable_sed = self.file_picker_textboxes['movable.sed'].get('1.0', tk.END).strip()
+
+        if not sd_root:
+            self.show_error('SD root is not specified.')
+            return
+        if not boot9:
+            self.show_error('boot9 is not specified.')
+            return
+        if not movable_sed:
+            self.show_error('movable.sed is not specified.')
+            return
+
+        if not seeddb:
+            if not self.ask_warning('seeddb was not specified. Titles that require it will fail to install.\n'
+                                    'Continue?'):
+                return
+
+        self.disable_buttons()
+        self.log('Starting install...')
+
+        cias = self.cia_listbox.get(0, tk.END)
+        if not len(cias):
+            self.show_error('There are no titles added to install.')
+            return
+
+        installer = CustomInstall(boot9=boot9,
+                                  seeddb=seeddb,
+                                  movable=movable_sed,
+                                  sd=sd_root,
+                                  skip_contents=self.skip_contents_var.get() == 1,
+                                  overwrite_saves=self.overwrite_saves_var.get() == 1)
+
+        finished_percent = 0
+        max_percentage = 100 * len(cias)
+        self.progressbar.config(maximum=max_percentage)
+
+        def ci_on_log_msg(message, *args, **kwargs):
+            # ignoring end
+            self.log(message)
+
+        def ci_update_percentage(total_percent, total_read, size):
+            self.progressbar.config(value=total_percent + finished_percent)
+            if taskbar:
+                taskbar.SetProgressValue(self.hwnd, int(total_percent + finished_percent), max_percentage)
+
+        def ci_on_error(exc):
+            if taskbar:
+                taskbar.SetProgressState(self.hwnd, tbl.TBPF_ERROR)
+            for line in format_exception(*exc):
+                for line2 in line.split('\n')[:-1]:
+                    installer.log(line2)
+            self.show_error('An error occurred during installation.')
+            self.open_console()
+
+        def ci_on_cia_start(idx):
+            nonlocal finished_percent
+            finished_percent = idx * 100
+            if taskbar:
+                taskbar.SetProgressValue(self.hwnd, finished_percent, max_percentage)
+
+        installer.event.on_log_msg += ci_on_log_msg
+        installer.event.update_percentage += ci_update_percentage
+        installer.event.on_error += ci_on_error
+        installer.event.on_cia_start += ci_on_cia_start
+
+        try:
+            installer.prepare_titles(cias)
+        except Exception as e:
+            for line in format_exception(*exc_info()):
+                for line2 in line.split('\n')[:-1]:
+                    installer.log(line2)
+            self.show_error('An error occurred when trying to read the files.')
+            self.open_console()
+
+        if taskbar:
+            taskbar.SetProgressState(self.hwnd, tbl.TBPF_NORMAL)
+
+        def install():
+            try:
+                result, copied_3dsx = installer.start()
+                if result is True:
+                    self.log('Done!')
+                    if copied_3dsx:
+                        self.show_info('custom-install-finalize has been copied to the SD card.\n'
+                                       'To finish the install, run this on the console through the homebrew launcher.\n'
+                                       'This will install a ticket and seed if required.')
+                    else:
+                        self.show_info('To finish the install, run custom-install-finalize on the console.\n'
+                                       'This will install a ticket and seed if required.')
+                elif result is False:
+                    self.show_error('An error occurred when trying to run save3ds_fuse.')
+                    self.open_console()
+            except:
+                installer.event.on_error(exc_info())
+            finally:
+                self.enable_buttons()
+
+        Thread(target=install).start()
+
+
+window = tk.Tk()
+window.title('custom-install')
+frame = CustomInstallGUI(window)
+frame.pack(fill=tk.BOTH, expand=True)
+window.mainloop()

custominstall.py

@@ -1,32 +1,48 @@
 # This file is a part of custom-install.py.
 #
-# Copyright (c) 2019-2020 Ian Burgwin
+# custom-install is copyright (c) 2019-2020 Ian Burgwin
 # This file is licensed under The MIT License (MIT).
 # You can find the full license text in LICENSE.md in the root of this project.
 
 from argparse import ArgumentParser
 from os import makedirs, scandir
-from os.path import dirname, join
+from os.path import dirname, join, isdir, isfile
 from random import randint
 from hashlib import sha256
-from sys import platform
+from locale import getpreferredencoding
+from pprint import pformat
+from shutil import copyfile
+import sys
+from sys import platform, executable
 from tempfile import TemporaryDirectory
+from traceback import format_exception
 from typing import BinaryIO, TYPE_CHECKING
 import subprocess
 
 if TYPE_CHECKING:
     from os import PathLike
-    from typing import Union
+    from typing import List, Union
 
 from events import Events
 
-from pyctr.crypto import CryptoEngine, Keyslot
-from pyctr.type.cia import CIAReader, CIASection
+from pyctr.crypto import CryptoEngine, Keyslot, load_seeddb, get_seed
+from pyctr.type.cdn import CDNReader
+from pyctr.type.cia import CIAReader, CIAError
 from pyctr.type.ncch import NCCHSection
 from pyctr.util import roundup
 
+is_windows = platform == 'win32'
+
+if platform == 'msys':
+    platform = 'win32'
+
 # used to run the save3ds_fuse binary next to the script
-script_dir: str = dirname(__file__)
+frozen = getattr(sys, 'frozen', False)
+script_dir: str
+if frozen:
+    script_dir = dirname(executable)
+else:
+    script_dir = dirname(__file__)
 
 # missing contents are replaced with 0xFFFFFFFF in the cmd file
 CMD_MISSING = b'\xff\xff\xff\xff'
@@ -131,18 +147,22 @@ def save_cifinish(path: 'Union[PathLike, bytes, str]', data: dict):
 
 
 class CustomInstall:
-    def __init__(self, boot9, movable, cias, sd, skip_contents=False):
+    def __init__(self, boot9, seeddb, movable, sd, cifinish_out=None,
+                 overwrite_saves=False, skip_contents=False):
         self.event = Events()
         self.log_lines = []  # Stores all info messages for user to view
 
         self.crypto = CryptoEngine(boot9=boot9)
         self.crypto.setup_sd_key_from_file(movable)
-        self.cias = cias
+        self.seeddb = seeddb
+        self.readers: 'List[Union[CDNReader, CIAReader]]' = []
         self.sd = sd
         self.skip_contents = skip_contents
+        self.overwrite_saves = overwrite_saves
+        self.cifinish_out = cifinish_out
         self.movable = movable
 
-    def copy_with_progress(self, src: BinaryIO, dst: BinaryIO, size: int, path: str):
+    def copy_with_progress(self, src: BinaryIO, dst: BinaryIO, size: int, path: str, fire_event: bool = True):
         left = size
         cipher = self.crypto.create_ctr_cipher(Keyslot.SD, self.crypto.sd_path_to_iv(path))
         while left > 0:
@@ -151,35 +171,63 @@ class CustomInstall:
             dst.write(data)
             left -= to_read
             total_read = size - left
-            # self.log(f' {(total_read / size) * 100:>5.1f}%  {total_read / 1048576:>.1f} MiB / {size / 1048576:.1f} MiB')
+            if fire_event:
                 self.event.update_percentage((total_read / size) * 100, total_read / 1048576, size / 1048576)
 
+    def prepare_titles(self, paths: 'List[PathLike]'):
+        readers = []
+        for path in paths:
+            self.log(f'Reading {path}')
+            if isdir(path):
+                # try the default tmd file
+                reader = CDNReader(join(path, 'tmd'))
+            else:
+                try:
+                    reader = CIAReader(path)
+                except CIAError:
+                    # if there was an error with parsing the CIA header,
+                    # the file would be tried in CDNReader next (assuming it's a tmd)
+                    # any other error should be propagated to the caller
+                    reader = CDNReader(path)
+            readers.append(reader)
+        self.readers = readers
+
     def start(self):
+        if frozen:
+            save3ds_fuse_path = join(script_dir, 'bin', 'save3ds_fuse')
+        else:
+            save3ds_fuse_path = join(script_dir, 'bin', platform, 'save3ds_fuse')
+        if is_windows:
+            save3ds_fuse_path += '.exe'
+        if not isfile(save3ds_fuse_path):
+            self.log("Couldn't find " + save3ds_fuse_path, 2)
+            return None, False
+
         crypto = self.crypto
         # TODO: Move a lot of these into their own methods
         self.log("Finding path to install to...")
         [sd_path, id1s] = self.get_sd_path()
-        try:
         if len(id1s) > 1:
             raise SDPathError(f'There are multiple id1 directories for id0 {crypto.id0.hex()}, '
                               f'please remove extra directories')
         elif len(id1s) == 0:
             raise SDPathError(f'Could not find a suitable id1 directory for id0 {crypto.id0.hex()}')
-        except SDPathError:
-            self.log("")
 
+        if self.cifinish_out:
+            cifinish_path = self.cifinish_out
+        else:
             cifinish_path = join(self.sd, 'cifinish.bin')
         sd_path = join(sd_path, id1s[0])
         title_info_entries = {}
         cifinish_data = load_cifinish(cifinish_path)
 
+        load_seeddb(self.seeddb)
+
         # Now loop through all provided cia files
         
-        for c in self.cias:
-            self.log('Reading ' + c)
+        for idx, cia in enumerate(self.readers):
 
-            cia = CIAReader(c)
-            self.cia = cia
+            self.event.on_cia_start(idx)
 
             tid_parts = (cia.tmd.title_id[0:8], cia.tmd.title_id[8:16])
 
@@ -226,26 +274,26 @@ class CustomInstall:
             title_root_cmd = f'/title/{"/".join(tid_parts)}'
             content_root_cmd = title_root_cmd + '/content'
 
+            if not self.skip_contents:
                 makedirs(join(content_root, 'cmd'), exist_ok=True)
                 if cia.tmd.save_size:
                     makedirs(join(title_root, 'data'), exist_ok=True)
                 if is_dlc:
                     # create the separate directories for every 256 contents
                     for x in range(((len(cia.content_info) - 1) // 256) + 1):
-                    makedirs(join(content_root, f'{x:08x}'))
+                        makedirs(join(content_root, f'{x:08x}'), exist_ok=True)
 
                 # maybe this will be changed in the future
                 tmd_id = 0
 
                 tmd_filename = f'{tmd_id:08x}.tmd'
 
-            if not self.skip_contents:
                 # write the tmd
                 enc_path = content_root_cmd + '/' + tmd_filename
                 self.log(f'Writing {enc_path}...')
-                with cia.open_raw_section(CIASection.TitleMetadata) as s:
                 with open(join(content_root, tmd_filename), 'wb') as o:
-                        self.copy_with_progress(s, o, cia.sections[CIASection.TitleMetadata].size, enc_path)
+                    with self.crypto.create_ctr_io(Keyslot.SD, o, self.crypto.sd_path_to_iv(enc_path)) as e:
+                        e.write(bytes(cia.tmd))
 
                 # write each content
                 for co in cia.content_info:
@@ -265,6 +313,7 @@ class CustomInstall:
                 if cia.tmd.save_size:
                     enc_path = title_root_cmd + '/data/00000001.sav'
                     out_path = join(title_root, 'data', '00000001.sav')
+                    if self.overwrite_saves or not isfile(out_path):
                         cipher = crypto.create_ctr_cipher(Keyslot.SD, crypto.sd_path_to_iv(enc_path))
                         # in a new save, the first 0x20 are all 00s. the rest can be random
                         data = cipher.encrypt(b'\0' * 0x20)
@@ -272,6 +321,8 @@ class CustomInstall:
                         with open(out_path, 'wb') as o:
                             o.write(data)
                             o.write(b'\0' * (cia.tmd.save_size - 0x20))
+                    else:
+                        self.log(f'Not overwriting existing save at {enc_path}')
 
                 # generate and write cmd
                 enc_path = content_root_cmd + '/cmd/' + cmd_filename
@@ -364,14 +415,16 @@ class CustomInstall:
 
             title_info_entries[cia.tmd.title_id] = b''.join(title_info_entry_data)
 
-            cifinish_data[int(cia.tmd.title_id, 16)] = {'seed': (cia.contents[0].seed if cia.contents[0].flags.uses_seed else None)}
+            cifinish_data[int(cia.tmd.title_id, 16)] = {'seed': (get_seed(cia.contents[0].program_id) if cia.contents[0].flags.uses_seed else None)}
 
+        # This is saved regardless if any titles were installed, so the file can be upgraded just in case.
         save_cifinish(cifinish_path, cifinish_data)
 
+        if title_info_entries:
             with TemporaryDirectory(suffix='-custom-install') as tempdir:
                 # set up the common arguments for the two times we call save3ds_fuse
                 save3ds_fuse_common_args = [
-                join(script_dir, 'bin', platform, 'save3ds_fuse'),
+                    save3ds_fuse_path,
                     '-b', crypto.b9_path,
                     '-m', self.movable,
                     '--sd', self.sd,
@@ -379,9 +432,25 @@ class CustomInstall:
                     tempdir
                 ]
 
+                extra_kwargs = {}
+                if is_windows:
+                    # hide console window
+                    extra_kwargs['creationflags'] = 0x08000000  # CREATE_NO_WINDOW
+
                 # extract the title database to add our own entry to
                 self.log('Extracting Title Database...')
-            subprocess.run(save3ds_fuse_common_args + ['-x'])
+                out = subprocess.run(save3ds_fuse_common_args + ['-x'],
+                                     stdout=subprocess.PIPE,
+                                     stderr=subprocess.STDOUT,
+                                     encoding=getpreferredencoding(),
+                                     **extra_kwargs)
+                if out.returncode:
+                    for l in out.stdout.split('\n'):
+                        self.log(l)
+                    self.log('Command line:')
+                    for l in pformat(out.args).split('\n'):
+                        self.log(l)
+                    return False, False
 
                 for title_id, entry in title_info_entries.items():
                     # write the title info entry to the temp directory
@@ -390,10 +459,39 @@ class CustomInstall:
 
                 # import the directory, now including our title
                 self.log('Importing into Title Database...')
-            subprocess.run(save3ds_fuse_common_args + ['-i'])
+                out = subprocess.run(save3ds_fuse_common_args + ['-i'],
+                                     stdout=subprocess.PIPE,
+                                     stderr=subprocess.STDOUT,
+                                     encoding=getpreferredencoding(),
+                                     **extra_kwargs)
+                if out.returncode:
+                    for l in out.stdout.split('\n'):
+                        self.log(l)
+                    self.log('Command line:')
+                    for l in pformat(out.args).split('\n'):
+                        self.log(l)
+                    return False, False
 
-        self.log('FINAL STEP:\nRun custom-install-finalize through homebrew launcher.')
+            finalize_3dsx_orig_path = join(script_dir, 'custom-install-finalize.3dsx')
+            hb_dir = join(self.sd, '3ds')
+            finalize_3dsx_path = join(hb_dir, 'custom-install-finalize.3dsx')
+            copied = False
+            if isfile(finalize_3dsx_orig_path):
+                self.log('Copying finalize program to ' + finalize_3dsx_path)
+                makedirs(hb_dir, exist_ok=True)
+                copyfile(finalize_3dsx_orig_path, finalize_3dsx_path)
+                copied = True
+
+            self.log('FINAL STEP:')
+            self.log('Run custom-install-finalize through homebrew launcher.')
             self.log('This will install a ticket and seed if required.')
+            if copied:
+                self.log('custom-install-finalize has been copied to the SD card.')
+            return True, copied
+
+        else:
+            self.log('Did not install any titles.', 2)
+            return None, False
 
     def get_sd_path(self):
         sd_path = join(self.sd, 'Nintendo 3DS', self.crypto.id0.hex())
@@ -401,8 +499,9 @@ class CustomInstall:
         for d in scandir(sd_path):
             if d.is_dir() and len(d.name) == 32:
                 try:
-                    # id1_tmp = bytes.fromhex(d.name)
-                    pass
+                    # check if the name can be converted to hex
+                    # I'm not sure what the 3DS does if there is a folder that is not a 32-char hex string.
+                    bytes.fromhex(d.name)
                 except ValueError:
                     continue
                 else:
@@ -441,15 +540,20 @@ if __name__ == "__main__":
     parser.add_argument('cia', help='CIA files', nargs='+')
     parser.add_argument('-m', '--movable', help='movable.sed file', required=True)
     parser.add_argument('-b', '--boot9', help='boot9 file')
+    parser.add_argument('-s', '--seeddb', help='seeddb file')
     parser.add_argument('--sd', help='path to SD root', required=True)
     parser.add_argument('--skip-contents', help="don't add contents, only add title info entry", action='store_true')
+    parser.add_argument('--overwrite-saves', help='overwrite existing save files', action='store_true')
+    parser.add_argument('--cifinish-out', help='path for cifinish.bin file, defaults to (SD root)/cifinish.bin')
 
     args = parser.parse_args()
 
     installer = CustomInstall(boot9=args.boot9,
-                              cias=args.cia,
+                              seeddb=args.seeddb,
                               movable=args.movable,
                               sd=args.sd,
+                              overwrite_saves=args.overwrite_saves,
+                              cifinish_out=args.cifinish_out,
                               skip_contents=(args.skip_contents or False))
 
     def log_handle(msg, end='\n'):
@@ -458,7 +562,18 @@ if __name__ == "__main__":
     def percent_handle(total_percent, total_read, size):
         installer.log(f' {total_percent:>5.1f}%  {total_read:>.1f} MiB / {size:.1f} MiB\r', end='')
 
+    def error(exc):
+        for line in format_exception(*exc):
+            for line2 in line.split('\n')[:-1]:
+                installer.log(line2)
+
     installer.event.on_log_msg += log_handle
     installer.event.update_percentage += percent_handle
+    installer.event.on_error += error
 
-    installer.start()
+    installer.prepare_titles(args.cia)
+
+    result, copied_3dsx = installer.start()
+    if result is False:
+        # save3ds_fuse failed
+        installer.log('NOTE: Once save3ds_fuse is fixed, run the same command again with --skip-contents')

extras/windows-quickstart.txt

@@ -0,0 +1,7 @@
+Run ci-gui to bring up the custom-install gui.
+Select your SD card root, boot9, seeddb, and movable.sed files.
+In some cases these will be automatically selected for you.
+
+Add the CIA files and click "Start install".
+
+Once it's finished, start up the homebrew launcher and run custom-install-finalize to finish the process.

finalize/source/main.c

@@ -7,7 +7,6 @@
 #include "basetik_bin.h"
 
 #define CIFINISH_PATH "/cifinish.bin"
-#define REQUIRED_VERSION 3
 
 // 0x10
 struct finish_db_header {
@@ -16,8 +15,30 @@ struct finish_db_header {
 	u32 title_count;
 };
 
+// 0x30
+struct finish_db_entry_v1 {
+	u64 title_id;
+	u8 common_key_index; // unused by this program
+	bool has_seed;
+	u8 magic[6]; // "TITLE" and a null byte
+	u8 title_key[0x10]; // unused by this program
+	u8 seed[0x10];
+};
+
 // 0x20
-struct finish_db_entry {
+// this one was accidential since I mixed up the order of the members in the script
+//   and the finalize program, but a lot of users probably used the bad one so I need
+//   to support this anyway.
+struct finish_db_entry_v2 {
+	u8 magic[6]; // "TITLE" and a null byte
+	u64 title_id;
+	bool has_seed;
+	u8 padding;
+	u8 seed[0x10];
+} __attribute__((packed));
+
+// 0x20
+struct finish_db_entry_v3 {
 	u8 magic[6]; // "TITLE" and a null byte
 	bool has_seed;
 	u64 title_id;
@@ -31,6 +52,13 @@ struct ticket_dumb {
 	u8 unused2[0x16C];
 } __attribute__((packed));
 
+// the 3 versions are put into this struct
+struct finish_db_entry_final {
+	bool has_seed;
+	u64 title_id;
+	u8 seed[0x10];
+};
+
 // from FBI:
 // https://github.com/Steveice10/FBI/blob/6e3a28e4b674e0d7a6f234b0419c530b358957db/source/core/http.c#L440-L453
 static Result FSUSER_AddSeed(u64 titleId, const void* seed) {
@@ -48,66 +76,154 @@ static Result FSUSER_AddSeed(u64 titleId, const void* seed) {
 	return ret;
 }
 
+int load_cifinish(char* path, struct finish_db_entry_final **entries)
+{
+	FILE *fp;
+	struct finish_db_header header;
+
+	struct finish_db_entry_v1 v1;
+	struct finish_db_entry_v2 v2;
+	struct finish_db_entry_v3 v3;
+
+	struct finish_db_entry_final *tmp;
+
+	int i;
+	size_t read;
+
+	printf("Reading %s...\n", path);
+	fp = fopen(path, "rb");
+	if (!fp)
+	{
+		printf("Failed to open file. Does it exist?\n");
+		return -1;
+	}
+
+	fread(&header, sizeof(header), 1, fp);
+
+	if (memcmp(header.magic, "CIFINISH", 8))
+	{
+		printf("CIFINISH magic not found.\n");
+		goto fail;
+	}
+
+	printf("CIFINISH version: %lu\n", header.version);
+
+	if (header.version > 3)
+	{
+		printf("This version of custom-install-finalize is\n");
+		printf("  too old. Please update to a new release.\n");
+		goto fail;
+	}
+
+	*entries = calloc(header.title_count, sizeof(struct finish_db_entry_final));
+	if (!*entries) {
+		printf("Couldn't allocate memory.\n");
+		printf("This should never happen.\n");
+		goto fail;
+	}
+	tmp = *entries;
+
+	if (header.version == 1)
+	{
+		for (i = 0; i < header.title_count; i++)
+		{
+			read = fread(&v1, sizeof(v1), 1, fp);
+			if (read != 1)
+			{
+				printf("Couldn't read a full entry.\n");
+				printf("  Is the file corrupt?\n");
+				goto fail;
+			}
+
+			if (memcmp(v1.magic, "TITLE", 6))
+			{
+				printf("Couldn't find TITLE magic for entry.\n");
+				printf("  Is the file corrupt?\n");
+				goto fail;
+			}
+			tmp[i].has_seed = v1.has_seed;
+			tmp[i].title_id = v1.title_id;
+			memcpy(tmp[i].seed, v1.seed, 16);
+		}
+	} else if (header.version == 2) {
+		for (i = 0; i < header.title_count; i++)
+		{
+			read = fread(&v2, sizeof(v2), 1, fp);
+			if (read != 1)
+			{
+				printf("Couldn't read a full entry.\n");
+				printf("  Is the file corrupt?\n");
+				goto fail;
+			}
+
+			if (memcmp(v2.magic, "TITLE", 6))
+			{
+				printf("Couldn't find TITLE magic for entry.\n");
+				printf("  Is the file corrupt?\n");
+				goto fail;
+			}
+			tmp[i].has_seed = v2.has_seed;
+			tmp[i].title_id = v2.title_id;
+			memcpy(tmp[i].seed, v2.seed, 16);
+		}
+	} else if (header.version == 3) {
+		for (i = 0; i < header.title_count; i++)
+		{
+			read = fread(&v3, sizeof(v3), 1, fp);
+			if (read != 1)
+			{
+				printf("Couldn't read a full entry.\n");
+				printf("  Is the file corrupt?\n");
+				goto fail;
+			}
+
+			if (memcmp(v3.magic, "TITLE", 6))
+			{
+				printf("Couldn't find TITLE magic for entry.\n");
+				printf("  Is the file corrupt?\n");
+				goto fail;
+			}
+			tmp[i].has_seed = v3.has_seed;
+			tmp[i].title_id = v3.title_id;
+			memcpy(tmp[i].seed, v3.seed, 16);
+		}
+	}
+
+	return header.title_count;
+
+fail:
+	fclose(fp);
+	return -1;
+}
+
 void finalize_install(void)
 {
 	Result res;
 	Handle ticketHandle;
 	struct ticket_dumb ticket_buf;
-	FILE *fp;
+	struct finish_db_entry_final *entries;
+	int title_count;
 
-	struct finish_db_header header;
-	struct finish_db_entry *entries;
+	title_count = load_cifinish(CIFINISH_PATH, &entries);
+	if (title_count == -1)
+	{
+		free(entries);
+		return;
+	}
+	if (title_count == 0)
+	{
+		printf("No titles to finalize.\n");
+		free(entries);
+		return;
+	}
+
+	//printf("Deleting %s...\n", CIFINISH_PATH);
+	//unlink(CIFINISH_PATH);
 
 	memcpy(&ticket_buf, basetik_bin, basetik_bin_size);
 
-	printf("Reading %s...\n", CIFINISH_PATH);
-	fp = fopen(CIFINISH_PATH, "rb");
-	if (!fp)
+	for (int i = 0; i < title_count; ++i)
 	{
-		puts("Failed to open file.");
-		return;
-	}
-
-	fread(&header, sizeof(struct finish_db_header), 1, fp);
-	
-	if (memcmp(header.magic, "CIFINISH", 8))
-	{
-		printf("CIFINISH magic not found in %s.\n", CIFINISH_PATH);
-		fclose(fp);
-		return;
-	}
-
-	if (header.version != REQUIRED_VERSION)
-	{
-		printf("\n%s was created with a different\n", CIFINISH_PATH);
-		printf("  version of custom-install than this one\n");
-		printf("  supports.\n\n");
-		printf("Make sure you are using the latest version of\n");
-		printf("  custom-install and custom-install-finalize\n");
-		printf("  from the repository on GitHub.\n\n");
-		printf("When you run the script again, you can use\n");
-		printf("  --skip-contents to avoid re-writing the title\n");
-		printf("  contents, so only the Title Database and\n");
-		printf("  cifinish.bin will be modified.\n\n");
-		printf("Expected version %i, got %li\n", REQUIRED_VERSION, header.version);
-		fclose(fp);
-		return;
-	}
-
-	entries = calloc(header.title_count, sizeof(struct finish_db_entry));
-	fread(entries, sizeof(struct finish_db_entry), header.title_count, fp);
-	fclose(fp);
-	printf("Deleting %s...\n", CIFINISH_PATH);
-	unlink(CIFINISH_PATH);
-
-	for (int i = 0; i < header.title_count; ++i)
-	{
-		// this includes the null byte
-		if (memcmp(entries[i].magic, "TITLE", 6))
-		{
-			puts("Couldn't find TITLE magic for entry, skipping.");
-			continue;
-		}
 		printf("Finalizing %016llx...\n", entries[i].title_id);
 
 		ticket_buf.title_id_be = __builtin_bswap64(entries[i].title_id);
@@ -156,14 +272,16 @@ void finalize_install(void)
 int main(int argc, char* argv[])
 {
 	amInit();
-	sdmcInit();
 	gfxInitDefault();
 	consoleInit(GFX_TOP, NULL);
 
-	puts("custom-install-finalize v1.2");
+	printf("custom-install-finalize v1.4\n");
 
 	finalize_install();
-	puts("\nPress START or B to exit.");
+	// print this at the end in case it gets pushed off the screen
+	printf("\nRepository:\n");
+	printf("  https://github.com/ihaveamac/custom-install\n");
+	printf("\nPress START or B to exit.\n");
 
 	// Main loop
 	while (aptMainLoop())
@@ -179,7 +297,6 @@ int main(int argc, char* argv[])
 	}
 
 	gfxExit();
-	sdmcExit();
 	amExit();
 	return 0;
 }

gui-custominstall.py

@@ -1,199 +0,0 @@
-from custominstall import CustomInstall
-import tkinter as tk
-from tkinter.filedialog import askopenfilenames
-from tkinter.ttk import Progressbar
-import os
-import datetime
-import threading
-import queue
-
-
-class CustomInstallGui(tk.Frame):
-    def __init__(self, master=None):
-        tk.Frame.__init__(self, master)
-        self.master = master
-
-        # Title name for window
-        self.window_title = "Custom-Install GUI"
-
-        # Config
-        self.skip_contents = False
-        self.cias = []
-        self.boot9 = None
-        self.movable = None
-        self.sd = None
-        self.skip_cont_var = tk.IntVar(self)
-
-        for x in range(8):
-            tk.Grid.rowconfigure(self, x, weight=1)
-        for x in range(1):
-            tk.Grid.columnconfigure(self, x, weight=1)
-    
-    def set_cias(self, filename):
-        self.cias = filename
-    
-    def set_boot9(self, filename):
-        self.boot9 = filename
-    
-    def set_movable(self, filename):
-        self.movable = filename
-    
-    def set_sd(self, directory):
-        self.sd = directory
-    
-    def start_install(self, event):
-        self.progress['value'] = 0
-        error = False
-
-        # Checks
-        if len(self.cias) == 0:
-            self.add_log_msg("Error: Please select CIA file(s)")
-            error = True
-        if self.boot9 == None:
-            self.add_log_msg("Error: Please add your boot9 file")
-            error = True
-        if self.movable == None:
-            self.add_log_msg("Error: Please add your movable file")
-        if self.sd == None:
-            self.add_log_msg("Error: Please locate your SD card directory")
-            self.add_log_msg("Note: Linux usually mounts to /media/")
-        if error:
-            self.add_log_msg("--- Errors occured, aborting ---")
-            return False
-
-        # Start the job
-        if self.skip_cont_var.get() == 1: self.skip_contents = True
-        else: self.skip_contents = False
-
-        print(f'{self.cias}\n{self.boot9}\n{self.movable}\n{self.skip_contents}')
-        self.log.insert(tk.END, "Starting install...\n")
-
-        installer = CustomInstall(boot9=self.boot9, 
-                movable=self.movable, 
-                cias=self.cias, 
-                sd=self.sd, 
-                skip_contents=self.skip_contents)
-        
-
-        # DEBUG
-        # self.debug_values()
-        
-        def start_install():
-            def log_handle(message, end=None): self.add_log_msg(message)
-            def percentage_handle(percent, total_read, size): self.progress['value'] = percent
-
-            installer.event.on_log_msg += log_handle
-            installer.event.update_percentage += percentage_handle
-            installer.start()
-            print('--- Script is done ---')
-
-        t = threading.Thread(target=start_install)
-        t.start()
-    
-
-        
-
-    def debug_values(self):
-        self.add_log_msg(self.boot9)
-        self.add_log_msg(self.movable)
-        self.add_log_msg(self.cias)
-        self.add_log_msg(self.sd)
-        self.add_log_msg(self.skip_contents)
-
-    def start(self):
-        self.master.title(self.window_title)
-        self.pack(fill=tk.BOTH, expand=True)
-
-        self.log = tk.Text(self, height=10, width=40)
-        install = tk.Button(self, text="Install CIA")
-        skip_checkbox = tk.Checkbutton(self, text="Skip Contents", variable=self.skip_cont_var)
-
-        self.progress = Progressbar(self, orient=tk.HORIZONTAL, length=100, mode='determinate')
-
-        # File pickers
-        cia_picker = self.filepicker_option("CIA file(s)", True, self.set_cias)
-        boot9_picker = self.filepicker_option("Select boot9.bin...", False, self.set_boot9)
-        movable_picker = self.filepicker_option("Select movable.sed...", False, self.set_movable)
-        sd_picker = self.filepicker_option("Select SD card...", False, self.set_sd, True)
-        
-        # Place widgets
-        self.log.grid(column=0, row=0, sticky=tk.N+tk.E+tk.W)
-        self.progress.grid(column=0, row=1, sticky=tk.E+tk.W)
-        sd_picker.grid(column=0, row=2, sticky=tk.E+tk.W)
-        boot9_picker.grid(column=0, row=3, sticky=tk.E+tk.W)
-        movable_picker.grid(column=0, row=4, sticky=tk.E+tk.W)
-        cia_picker.grid(column=0, row=5, sticky=tk.E+tk.W)
-        skip_checkbox.grid(column=0, row=6, sticky=tk.E+tk.W)
-        install.grid(column=0, row=7, sticky=tk.S+tk.E+tk.W)
-        
-
-        # Events
-        install.bind('<Button-1>', self.start_install)
-
-        # Just a greeting :)
-        now = datetime.datetime.now()
-        time_short = "day!"
-        if now.hour < 12: time_short = "morning!"
-        elif now.hour > 12: time_short = "afternoon!"  
-        self.add_log_msg(f'Good {time_short} Please pick your boot9, movable.sed, SD, and CIA file(s).\n---\nPress "Install CIA" when ready!')
-
-    def add_log_msg(self, message):
-        self.log.insert(tk.END, str(message)+"\n")
-        self.log.see(tk.END)
-    
-    def filepicker_option(self, title, multiple_files, on_file_add, dir_only=False):
-        frame = tk.Frame(self)
-        
-        browse_button = tk.Button(frame, text="Pick file")
-        filename_label = tk.Label(frame, text=title, wraplength=200)
-
-        browse_button.grid(column=0, row=0)
-        filename_label.grid(column=1, row=0)
-
-        # Wrapper for event
-        def file_add(event):
-            if dir_only:
-                folder = tk.filedialog.askdirectory()
-                if not folder:
-                    return False
-                    
-                dir = os.path.basename(folder)
-                filename_label.config(text="SD => "+dir)
-
-                on_file_add(folder)
-                return True
-            # Returns multiple files in a tuple
-            filename = (tk.filedialog.askopenfilenames()
-                            if multiple_files else
-                            tk.filedialog.askopenfilename())
-
-            # User may select "cancel"
-            if not filename:
-                return False
-
-
-            if multiple_files:
-                basename = os.path.basename(filename[0])
-                if len(filename) <= 1:
-                    more = ""
-                elif len(filename) > 1:
-                    more = " + "+str(len(filename))+" more"
-            else:
-                basename = os.path.basename(filename)
-                more = ""
-
-            filename_label.config(text=basename+more)
-
-            # Runs callback provided
-            on_file_add(filename)
-
-        browse_button.bind('<Button-1>', file_add)
-
-        return frame
-
-
-root = tk.Tk()
-app = CustomInstallGui(root)
-app.start()
-
-root.mainloop()

make-standalone.bat

@@ -0,0 +1,11 @@
+mkdir build
+mkdir dist
+cxfreeze ci-gui.py --target-dir=build\custom-install-standalone --base-name=Win32GUI
+mkdir build\custom-install-standalone\bin
+copy TaskbarLib.tlb build\custom-install-standalone
+copy bin\win32\save3ds_fuse.exe build\custom-install-standalone\bin
+copy bin\README build\custom-install-standalone\bin
+copy custom-install-finalize.3dsx build\custom-install-standalone
+copy extras\windows-quickstart.txt build\custom-install-standalone
+copy LICENSE.md build\custom-install-standalone
+python -m zipfile -c dist\custom-install-standalone.zip build\custom-install-standalone

requirements-win32.txt

@@ -0,0 +1,2 @@
+-r requirements.txt
+comtypes==1.1.7

requirements.txt

@@ -1,3 +1,3 @@
-pycryptodomex==3.9.4
+pycryptodomex==3.9.8
 events==0.3
-pyctr==0.1.0
+pyctr==0.4.3

windows-install-dependencies.py

@@ -0,0 +1,13 @@
+# This is meant to be double-clicked from File Explorer.
+
+# This doesn't import pip as a module in case the way it's executed changes, which it has in the past.
+# Instead we call it like we would in the command line.
+
+from subprocess import run
+from os.path import dirname, join
+from sys import executable
+
+root_dir = dirname(__file__)
+
+run([executable, '-m', 'pip', 'install', '--user', '-r', join(root_dir, 'requirements-win32.txt')])
+input('Press enter to close')