[Bug]: panic: core::option::Option::unwrap() on a None value in riti_context_new_with_config

[itshimelz]

OpenBangla Keyboard Version

openbangla-keyboard-git (latest AUR version)

Operating System and Version

Arch Linux

Environment Details (for GNU/Linux Users)

Wayland (Hyprland)

Input Method Framework

Fcitx

Describe the Bug

immediately upon initialization or when reloading the OpenBangla engine. The crash is a Rust panic originating from the riti engine's FFI layer.

Steps to Reproduce

1. Install openbangla-keyboard-git and fcitx5-openbangla-git.
2. Configure Fcitx5 with OpenBangla as an input method.
3. Start the Fcitx5 daemon: fcitx5 -d.
4. Observe the immediate process abort/crash.

Logs or Screenshots

I2026-05-15 22:45:40.068544 instance.cpp:1420] Override Enabled Addons: {}
I2026-05-15 22:45:40.072916 instance.cpp:1421] Override Disabled Addons: {}
I2026-05-15 22:45:40.076443 addonmanager.cpp:204] Loaded addon wayland
I2026-05-15 22:45:40.079535 xcbconnection.cpp:198] Connecting to X11 display, display name::1.
I2026-05-15 22:45:40.079612 xcbconnection.cpp:203] X11 display: :1 is xwayland.
I2026-05-15 22:45:40.079699 addonmanager.cpp:204] Loaded addon xcb
I2026-05-15 22:45:40.081265 addonmanager.cpp:204] Loaded addon quickphrase
I2026-05-15 22:45:40.081424 addonmanager.cpp:204] Loaded addon imselector
I2026-05-15 22:45:40.082463 keyboard.cpp:229] Attempting to load keyboard from: ["/usr/share/xkeyboard-config-2"] Rule: evdev
I2026-05-15 22:45:40.089305 addonmanager.cpp:204] Loaded addon keyboard
I2026-05-15 22:45:40.089835 addonmanager.cpp:204] Loaded addon clipboard
I2026-05-15 22:45:40.090090 addonmanager.cpp:204] Loaded addon waylandim
I2026-05-15 22:45:40.090303 addonmanager.cpp:204] Loaded addon unicode
I2026-05-15 22:45:40.091075 addonmanager.cpp:204] Loaded addon dbus
Checking update for input methods and addons
I2026-05-15 22:45:40.105096 addonmanager.cpp:204] Loaded addon fcitx4frontend
I2026-05-15 22:45:40.106017 addonmanager.cpp:204] Loaded addon ibusfrontend
I2026-05-15 22:45:40.106775 addonmanager.cpp:204] Loaded addon xim
I2026-05-15 22:45:40.107297 addonmanager.cpp:204] Loaded addon dbusfrontend
I2026-05-15 22:45:40.145470 inputmethodmanager.cpp:210] Found 749 input method(s) in addon keyboard
I2026-05-15 22:45:40.171718 addonmanager.cpp:204] Loaded addon kimpanel
I2026-05-15 22:45:40.172017 addonmanager.cpp:204] Loaded addon virtualkeyboard
I2026-05-15 22:45:40.197242 classicui.cpp:89] Created classicui for x11 display::1
I2026-05-15 22:45:40.197306 classicui.cpp:110] Created classicui for wayland display:
I2026-05-15 22:45:40.197323 addonmanager.cpp:204] Loaded addon classicui
I2026-05-15 22:45:40.197792 addonmanager.cpp:204] Loaded addon notificationitem
I2026-05-15 22:45:40.198321 addonmanager.cpp:204] Loaded addon notifications
I2026-05-15 22:45:40.206537 dbusmodule.cpp:841] Service name change: org.fcitx.Fcitx5  :1.103
I2026-05-15 22:45:40.209612 kimpanel.cpp:116] Kimpanel new owner: 
I2026-05-15 22:45:40.209703 virtualkeyboard.cpp:218] VirtualKeyboard new owner: 
I2026-05-15 22:45:40.209765 portalsettingmonitor.cpp:97] A new portal show up, start a new query.
I2026-05-15 22:45:40.209985 portalsettingmonitor.cpp:97] A new portal show up, start a new query.

thread '<unnamed>' (40049) panicked at src/fixed/method.rs:109:66:
called `Option::unwrap()` on a `None` value
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

thread '<unnamed>' (40049) panicked at library/core/src/panicking.rs:225:5:
panic in a function that cannot unwind
stack backtrace:
   0:     0x7fd062505b4a - <<std[a765fd5928b5b598]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[35a6834026b90a1d]::fmt::Display>::fmt
   1:     0x7fd0625477fa - core[35a6834026b90a1d]::fmt::write
   2:     0x7fd062517e82 - <std[a765fd5928b5b598]::sys::stdio::unix::Stderr as std[a765fd5928b5b598]::io::Write>::write_fmt
   3:     0x7fd0624d6973 - std[a765fd5928b5b598]::panicking::default_hook::{closure#0}
   4:     0x7fd0624f802c - std[a765fd5928b5b598]::panicking::default_hook
   5:     0x7fd0624f81eb - std[a765fd5928b5b598]::panicking::panic_with_hook
   6:     0x7fd0624d6a5a - std[a765fd5928b5b598]::panicking::panic_handler::{closure#0}
   7:     0x7fd0624cd9e9 - std[a765fd5928b5b598]::sys::backtrace::__rust_end_short_backtrace::<std[a765fd5928b5b598]::panicking::panic_handler::{closure#0}, !>
   8:     0x7fd0624d7fdd - __rustc[168cb6d8736c2077]::rust_begin_unwind
   9:     0x7fd062477f8d - core[35a6834026b90a1d]::panicking::panic_nounwind_fmt
  10:     0x7fd062477ecb - core[35a6834026b90a1d]::panicking::panic_nounwind
  11:     0x7fd062478097 - core[35a6834026b90a1d]::panicking::panic_cannot_unwind
  12:     0x7fd0624971a5 - riti_context_new_with_config
                               at /usr/src/debug/openbangla-keyboard-git/openbangla-keyboard/src/engine/riti/src/ffi.rs:21:1
  13:     0x7fd06247b6d9 - _ZN5fcitx16OpenBanglaEngine12reloadConfigEv
                               at /usr/src/debug/openbangla-keyboard-git/openbangla-keyboard/src/engine/fcitx/openbangla.cpp:509:15
  14:     0x7fd06247bdc5 - _ZN5fcitx16OpenBanglaEngineC2EPNS_8InstanceE
                               at /usr/src/debug/openbangla-keyboard-git/openbangla-keyboard/src/engine/fcitx/openbangla.cpp:379:15
  15:     0x7fd06247bfa0 - _ZN5fcitx17OpenBanglaFactory6createEPNS_12AddonManagerE
                               at /usr/src/debug/openbangla-keyboard-git/openbangla-keyboard/src/engine/fcitx/openbangla.h:91:52
  16:     0x7fd06bb1add8 - <unknown>
  17:     0x7fd06bb1c5c2 - <unknown>
  18:     0x7fd06bb1cba2 - _ZN5fcitx12AddonManager5addonERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEb
  19:     0x7fd06baf18f2 - <unknown>
  20:     0x7fd06b9f9d0a - <unknown>
  21:     0x7fd06b117305 - <unknown>
  22:     0x7fd06b11c213 - sd_event_dispatch
  23:     0x7fd06b11c489 - sd_event_run
  24:     0x7fd06b11c670 - sd_event_loop
  25:     0x7fd06ba28a8c - _ZN5fcitx9EventLoop4execEv
  26:     0x7fd06bae599e - _ZN5fcitx8Instance4execEv
  27:     0x562d30278c8e - <unknown>
  28:     0x7fd06b227741 - <unknown>
  29:     0x7fd06b227879 - __libc_start_main
  30:     0x562d3027a095 - <unknown>
  31:                0x0 - <unknown>
thread caused non-unwinding panic. aborting.
=========================
Fcitx 5.1.19 -- Get Signal No.: 6
Date: try "date -d @1778863541" if you are using GNU date ***
ProcessID: 40049
/usr/bin/fcitx5(+0x14ce8) [0x562d3027ace8]
/usr/lib/libc.so.6(+0x3e8f0) [0x7fd06b23e8f0]
/usr/lib/libc.so.6(+0x9a29c) [0x7fd06b29a29c]
/usr/lib/libc.so.6(gsignal+0x20) [0x7fd06b23e7d0]
/usr/lib/libc.so.6(abort+0x26) [0x7fd06b225681]
/usr/lib/fcitx5/openbangla.so(+0x76e4a) [0x7fd062476e4a]
/usr/lib/fcitx5/openbangla.so(+0x76be9) [0x7fd062476be9]
/usr/lib/fcitx5/openbangla.so(_RNvNtCsen3zWVbX5MG_3std9panicking15panic_with_hook+0x1d7) [0x7fd0624f832d]
/usr/lib/fcitx5/openbangla.so(+0xd6a5a) [0x7fd0624d6a5a]
/usr/lib/fcitx5/openbangla.so(+0xcd9e9) [0x7fd0624cd9e9]
/usr/lib/fcitx5/openbangla.so(+0xd7fdd) [0x7fd0624d7fdd]
/usr/lib/fcitx5/openbangla.so(_RNvNtCs4BzXErkODQn_4core9panicking18panic_nounwind_fmt+0x2d) [0x7fd062477f8d]
/usr/lib/fcitx5/openbangla.so(+0x77ecb) [0x7fd062477ecb]
/usr/lib/fcitx5/openbangla.so(+0x78097) [0x7fd062478097]
/usr/lib/fcitx5/openbangla.so(riti_context_new_with_config+0x395) [0x7fd0624971a5]
/usr/lib/fcitx5/openbangla.so(+0x7b6d9) [0x7fd06247b6d9]
/usr/lib/fcitx5/openbangla.so(+0x7bdc5) [0x7fd06247bdc5]
/usr/lib/fcitx5/openbangla.so(+0x7bfa0) [0x7fd06247bfa0]
/usr/lib/libFcitx5Core.so.7(+0x87dd8) [0x7fd06bb1add8]
/usr/lib/libFcitx5Core.so.7(+0x895c2) [0x7fd06bb1c5c2]
/usr/lib/libFcitx5Core.so.7(_ZN5fcitx12AddonManager5addonERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEb+0x1d2) [0x7fd06bb1cba2]
/usr/lib/libFcitx5Core.so.7(+0x5e8f2) [0x7fd06baf18f2]
/usr/lib/libFcitx5Utils.so.2(+0x47d0a) [0x7fd06b9f9d0a]
/usr/lib/libsystemd.so.0(+0x41305) [0x7fd06b117305]
/usr/lib/libsystemd.so.0(sd_event_dispatch+0x153) [0x7fd06b11c213]
/usr/lib/libsystemd.so.0(sd_event_run+0x129) [0x7fd06b11c489]
/usr/lib/libsystemd.so.0(sd_event_loop+0x60) [0x7fd06b11c670]
/usr/lib/libFcitx5Utils.so.2(_ZN5fcitx9EventLoop4execEv+0x2c) [0x7fd06ba28a8c]
/usr/lib/libFcitx5Core.so.7(_ZN5fcitx8Instance4execEv+0x5e) [0x7fd06bae599e]
/usr/bin/fcitx5(+0x12c8e) [0x562d30278c8e]
/usr/lib/libc.so.6(+0x27741) [0x7fd06b227741]
/usr/lib/libc.so.6(__libc_start_main+0x89) [0x7fd06b227879]

Additional Context

It appears that riti_context_new_with_config is attempting to unwrap a configuration or dictionary path that is returning None. This might be due to a missing directory in /usr/share/openbangla-keyboard/ or an unitialized default configuration during a fresh install on the -git branch.

[mominul]

Can you paste the output of ls $HOME/.local/share/openbangla-keyboard?

Sorry for the late reply!