File karukan.spec of Package karukan
#
# spec file for package karukan
#
# Copyright (c) 2026 Gakuto Furuya <g.furuya@gaato.net>
#
# All modifications and additions to the file contributed by third parties
# remain the property of their copyright owners, unless otherwise agreed
# upon. The license for this file, and modifications and additions to the
# file, is the same license as for the pristine package itself (unless the
# license for the pristine package is not an Open Source License, in which
# case the license is the MIT License). An "Open Source License" is a
# license that conforms to the Open Source Definition (Version 1.9)
# published by the Open Source Initiative.
# Please submit bugfixes or comments via https://bugs.opensuse.org/
#
Name: karukan
Version: 0.1.0
Release: 0
Summary: Japanese input method for Fcitx5 powered by neural kana-kanji conversion
Summary(ja): ニューラルかな漢字変換を搭載した Fcitx5 用日本語入力メソッド
License: MIT OR Apache-2.0
Group: System/I18n/Japanese
URL: https://github.com/togatoga/karukan
Source0: karukan-%{version}.tar.gz
Source1: vendor.tar.zst
# Skip cargo build in CMake -- already built in %%build via cargo
Patch0: fcitx5-karukan-skip-cargo-build.patch
# Make karukan-server serve packaged static files from %%{_datadir}
Patch1: karukan-server-static-path.patch
# KDE icon theme engine strips hyphens on fallback; use underscores
Patch2: fcitx5-karukan-icon-underscore.patch
# Rust toolchain — openSUSE supports "or" syntax for fallback to rust-bin;
# other distros (Fedora, etc.) just require system rust/cargo directly.
%if 0%{?suse_version}
BuildRequires: (rust >= 1.92 or rust-bin >= 1.92)
BuildRequires: (cargo >= 1.92 or rust-bin >= 1.92)
%else
BuildRequires: rust >= 1.92
BuildRequires: cargo >= 1.92
%endif
BuildRequires: gcc-c++
BuildRequires: cmake >= 3.16
BuildRequires: make
BuildRequires: clang-devel
BuildRequires: pkgconfig
BuildRequires: pkgconfig(openssl)
BuildRequires: pkgconfig(xkbcommon)
BuildRequires: extra-cmake-modules
BuildRequires: fcitx5-devel
BuildRequires: cmake(Fcitx5Core) >= 5.0
BuildRequires: zstd
Requires: fcitx5
%if 0%{?suse_version}
Supplements: (fcitx5 and bundle-lang-ja)
%endif
%description
Karukan is a Japanese Input Method Engine for Linux that uses neural
kana-kanji conversion powered by llama.cpp. It provides a fcitx5 addon
for romaji-to-hiragana conversion and intelligent kana-kanji conversion
using small neural network models (auto-downloaded on first use).
Features:
- Romaji-to-hiragana conversion with 200+ rules
- Neural kana-kanji conversion via llama.cpp (GGUF models)
- Adaptive model selection for low-latency input
- Learning cache for user conversion history
- System dictionary with double-array trie
%prep
%autosetup -p1 -n karukan-%{version} -a1
%build
# Workaround: llama-cpp-sys-2 build.rs requires CARGO_CFG_TARGET_FEATURE
# which is unset on some architectures (ppc64le, armv7l, etc.)
export CARGO_CFG_TARGET_FEATURE="${CARGO_CFG_TARGET_FEATURE:-}"
# Build the Rust shared library and CLI tools (vendored, offline)
export CARGO_HOME="$PWD/.cargo_home"
cargo build --release -p karukan-im -p karukan-cli --offline
# Build the fcitx5 C++ addon
pushd karukan-im/fcitx5-addon
%cmake
%cmake_build
popd
%install
# Install the fcitx5 C++ addon via cmake
pushd karukan-im/fcitx5-addon
%cmake_install
popd
# CLI tools
install -Dm755 target/release/karukan-dict %{buildroot}%{_bindir}/karukan-dict
install -Dm755 target/release/karukan-server %{buildroot}%{_bindir}/karukan-server
install -Dm755 target/release/sudachi-dict %{buildroot}%{_bindir}/sudachi-dict
install -Dm755 target/release/ajimee-bench %{buildroot}%{_bindir}/ajimee-bench
# Server static assets (served by karukan-server at runtime)
install -d %{buildroot}%{_datadir}/karukan/static
install -Dm644 karukan-cli/static/index.html %{buildroot}%{_datadir}/karukan/static/index.html
install -Dm644 karukan-cli/static/app.js %{buildroot}%{_datadir}/karukan/static/app.js
install -Dm644 karukan-cli/static/styles.css %{buildroot}%{_datadir}/karukan/static/styles.css
# Flatpak-style icon symlinks required by fcitx5 system tray
for size in 16 24 32 48 128; do
ln -s fcitx_karukan.png \
%{buildroot}%{_datadir}/icons/hicolor/${size}x${size}/apps/org.fcitx.Fcitx5.fcitx_karukan.png
done
# Default config and user dictionary
install -Dm644 karukan-im/config/default.toml \
%{buildroot}%{_datadir}/fcitx5/karukan/default.toml
install -Dm644 karukan-im/config/default_user_dict.txt \
%{buildroot}%{_datadir}/fcitx5/karukan/default_user_dict.txt
%check
export CARGO_CFG_TARGET_FEATURE="${CARGO_CFG_TARGET_FEATURE:-}"
export CARGO_HOME="$PWD/.cargo_home"
# Skip tests that require downloading models from Hugging Face (no network in OBS)
cargo test -p karukan-engine --lib --offline -- --skip kanji::backend::tests
cargo test -p karukan-engine --test romaji_tests --offline -- --skip test_zenninn_kanji_conversion
cargo test -p karukan-im --lib --offline
%files
%license LICENSE-MIT LICENSE-APACHE
%doc README.md
%{_bindir}/karukan-dict
%{_bindir}/karukan-server
%{_bindir}/sudachi-dict
%{_bindir}/ajimee-bench
%{_libdir}/fcitx5/karukan.so
%{_libdir}/fcitx5/libkarukan_im.so
%{_datadir}/fcitx5/addon/karukan.conf
%{_datadir}/fcitx5/inputmethod/karukan.conf
%{_datadir}/fcitx5/karukan/
%{_datadir}/metainfo/org.fcitx.Fcitx5.Addon.Karukan.metainfo.xml
%{_datadir}/icons/hicolor/16x16/apps/fcitx_karukan.png
%{_datadir}/icons/hicolor/24x24/apps/fcitx_karukan.png
%{_datadir}/icons/hicolor/32x32/apps/fcitx_karukan.png
%{_datadir}/icons/hicolor/48x48/apps/fcitx_karukan.png
%{_datadir}/icons/hicolor/128x128/apps/fcitx_karukan.png
%{_datadir}/icons/hicolor/16x16/apps/org.fcitx.Fcitx5.fcitx_karukan.png
%{_datadir}/icons/hicolor/24x24/apps/org.fcitx.Fcitx5.fcitx_karukan.png
%{_datadir}/icons/hicolor/32x32/apps/org.fcitx.Fcitx5.fcitx_karukan.png
%{_datadir}/icons/hicolor/48x48/apps/org.fcitx.Fcitx5.fcitx_karukan.png
%{_datadir}/icons/hicolor/128x128/apps/org.fcitx.Fcitx5.fcitx_karukan.png
%{_datadir}/karukan/
%changelog
