Initial setup
This commit is contained in:
@@ -0,0 +1,89 @@
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SRC_DIR := src
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BIN_DIR := bin
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OBJ_DIR := build
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INCLUDE_DIR := include
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CXX ?= g++
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CC ?= gcc
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TARGET_DEBUG := $(BIN_DIR)/blade-dbg
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TARGET_RELEASE := $(BIN_DIR)/blade
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PCH_DIR_DEBUG := $(OBJ_DIR)/debug/pch
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PCH_DIR_RELEASE := $(OBJ_DIR)/release/pch
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PCH_DEBUG := $(PCH_DIR_DEBUG)/pch.h.gch
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PCH_RELEASE := $(PCH_DIR_RELEASE)/pch.h.gch
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MRUBY_CFLAGS ?= -I./libs/mruby/build/host/include
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MRUBY_LIBS ?= -L./libs/mruby/build/host/lib -lmruby
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CFLAGS_DEBUG :=\
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-std=c++23 -Wall -Wextra -fno-rtti \
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-Og -fno-inline -gsplit-dwarf -DDEBUG \
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-g -fno-omit-frame-pointer -ffast-math \
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-I./include
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CFLAGS_RELEASE :=\
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-std=c++23 -O3 -mtune=generic -fno-rtti \
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-fvisibility=hidden -static -ffast-math \
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-fomit-frame-pointer -DNDEBUG -s \
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-I./include
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CFLAGS_DEBUG += $(MRUBY_CFLAGS)
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CFLAGS_RELEASE += $(MRUBY_CFLAGS)
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LIBS := $(MRUBY_LIBS)
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SRC := $(shell find $(SRC_DIR) -type f -name '*.cc')
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OBJ_DEBUG := $(patsubst $(SRC_DIR)/%.cc,$(OBJ_DIR)/debug/%.o,$(SRC))
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OBJ_RELEASE := $(patsubst $(SRC_DIR)/%.cc,$(OBJ_DIR)/release/%.o,$(SRC))
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DEP_DEBUG := $(OBJ_DEBUG:.o=.d)
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DEP_RELEASE := $(OBJ_RELEASE:.o=.d)
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.PHONY: all debug release clean
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all: release
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debug: $(TARGET_DEBUG)
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release: $(TARGET_RELEASE)
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$(PCH_DEBUG): $(INCLUDE_DIR)/pch.h
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@mkdir -p $(PCH_DIR_DEBUG)
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@$(CXX) $(CFLAGS_DEBUG) -x c++-header -o $@ $(INCLUDE_DIR)/pch.h
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@echo "Debug Precompiled header generated at $@"
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$(PCH_RELEASE): $(INCLUDE_DIR)/pch.h
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@mkdir -p $(PCH_DIR_RELEASE)
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@$(CXX) $(CFLAGS_RELEASE) -x c++-header -o $@ $(INCLUDE_DIR)/pch.h
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@echo "Release Precompiled header generated at $@"
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$(TARGET_DEBUG): $(PCH_DEBUG) $(OBJ_DEBUG)
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@mkdir -p $(BIN_DIR)
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@$(CXX) $(CFLAGS_DEBUG) -o $@ $(OBJ_DEBUG) $(LIBS)
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@echo "Debug build complete: $@"
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$(TARGET_RELEASE): $(PCH_RELEASE) $(OBJ_RELEASE)
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@mkdir -p $(BIN_DIR)
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@$(CXX) $(CFLAGS_RELEASE) -o $@ $(OBJ_RELEASE)$(LIBS)
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@strip $@
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@echo "Release build complete: $@"
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$(OBJ_DIR)/debug/%.o: $(SRC_DIR)/%.cc $(PCH_DEBUG) $(GENERATED_HEADER)
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@mkdir -p $(dir $@)
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@$(CXX) $(CFLAGS_DEBUG) -I$(PCH_DIR_DEBUG) -include pch.h -MMD -MP -c $< -o $@
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@echo "[CXX] Debug object file generated: $@ from $<"
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$(OBJ_DIR)/release/%.o: $(SRC_DIR)/%.cc $(PCH_RELEASE) $(GENERATED_HEADER)
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@mkdir -p $(dir $@)
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@$(CXX) $(CFLAGS_RELEASE) -I$(PCH_DIR_RELEASE) -include pch.h -MMD -MP -c $< -o $@
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@echo "[CXX] release object file generated: $@ from $<"
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-include $(DEP_DEBUG)
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-include $(DEP_RELEASE)
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clean:
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@rm -rf $(OBJ_DIR) $(BIN_DIR)
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@echo "Cleaned build artifacts."
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@@ -0,0 +1,111 @@
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{
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description = "Blade";
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inputs = {
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nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
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self.submodules = true;
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};
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outputs =
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{ nixpkgs, ... }:
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let
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system = "x86_64-linux";
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pkgs = nixpkgs.legacyPackages.${system}.pkgsStatic;
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hostPkgs = nixpkgs.legacyPackages.${system};
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mruby = pkgs.stdenv.mkDerivation {
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pname = "mruby";
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version = "0.0.1";
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src = pkgs.lib.cleanSourceWith {
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src = ./libs;
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name = "mruby-src";
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};
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patches = [
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./libs/changes.patch
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];
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nativeBuildInputs = with hostPkgs; [
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ruby
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gnumake
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];
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buildPhase = ''
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cd mruby
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rake
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'';
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installPhase = ''
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mkdir -p $out
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cp -r build/host/lib $out/lib
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cp -r build/host/include $out/include
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mkdir -p $out/bin
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cp build/host/bin/mrbc $out/bin/mrbc
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'';
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};
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blade = pkgs.stdenv.mkDerivation {
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pname = "blade";
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version = "0.1.0";
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src = ./.;
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nativeBuildInputs = with hostPkgs; [
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bash
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pkg-config
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gnumake
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findutils
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binutils
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];
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buildInputs = [
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mruby
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];
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buildPhase = ''
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make \
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MRUBY_CFLAGS="-I${mruby}/include" \
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MRUBY_LIBS="-L${mruby}/lib -lmruby"
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'';
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installPhase = ''
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mkdir -p $out/bin
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cp bin/blade $out/bin/blade
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'';
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};
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in
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{
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packages.${system} = {
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default = blade;
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blade = blade;
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mruby = mruby;
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};
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devShells.${system}.default = hostPkgs.mkShell {
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inputsFrom = [ blade ];
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packages = with hostPkgs; [
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clang-tools
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pkg-config
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ccache
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gnumake
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bear
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ruby
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gdb
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binutils
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findutils
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];
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shellHook = ''
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export CC="ccache $CC"
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export CXX="ccache $CXX"
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export MRUBY_CFLAGS=-I${mruby}/include
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export MRUBY_LIBS="-L${mruby}/lib -lmruby"
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'';
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};
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};
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}
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@@ -0,0 +1,103 @@
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# Blade is a PID 1
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## Core
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* [ ] Custom C++ userspace / init system
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* [ ] Everything runs in one main PID 1 process
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* [ ] Keep subsystems code-wise separate internally
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* [ ] Single-user system
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* [ ] Custom privilege escalation binary (`sudo`-like)
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## Init / Service Manager
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* [ ] PID 1 handles system initialization
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* [ ] Start/stop/restart services
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* [ ] Service dependencies
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* [ ] Service ordering / stages
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* [ ] Continuous service supervision
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* [ ] Ruby-defined service configuration
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* [ ] Ruby hooks for service events
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* [ ] Runtime service control through Ruby socket
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## Package Manager
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* [ ] Built into the main userspace
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* [ ] Packages defined as Ruby scripts
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* [ ] Packages use Git sources
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* [ ] Build using `make` commands
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* [ ] Package dependencies
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* [ ] Install/update packages
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* [ ] Cleanup/remove unused packages
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* [ ] Package hooks
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* [ ] Hooks can add services/configuration/etc.
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* [ ] Build required packages during startup
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## Ruby
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* [ ] Embedded static mruby
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* [ ] Ruby is the main configuration language
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* [ ] Same Ruby system defines packages + services + hooks
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* [ ] Ruby commands available at runtime over a socket
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* [ ] Runtime API for controlling the system
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* [ ] Hooks / shortcuts can react to system events
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## Built-in Components
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* [ ] D-Bus broker
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* [ ] Wayland compositor
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- Notifications (also connects to dbus)
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- Clipboard with history, and api to read/work with history.
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* [ ] Terminal emulator
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* [ ] Session manager
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* [ ] Package manager
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* [ ] Service manager
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* [ ] System configuration/runtime API
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## Boot Sequence
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1. Start basic services
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* Networking
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* Audio
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* Other essential infrastructure
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2. Run package manager
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* Build/update/install required packages
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* Cleanup
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* Run package hooks
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3. Start TTY2
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* Launch shell
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4. Start normal non-desktop services
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5. Start Wayland on TTY1
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6. Wayland starts in `locker` state
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7. Start services that depend on Wayland
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8. Resolve service dependencies/order
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9. Enter continuous runtime/event loop
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## Wayland / Desktop
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* [ ] Wayland compositor is built into PID 1
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* [ ] TTY1 is graphical
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* [ ] TTY2 is shell/terminal
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* [ ] Desktop states:
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* `locker`
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* `terminal`
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* `application`
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* [ ] `application` state gives each application its own workspace
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* [ ] System owns/controls the login/unlock password
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* [ ] No traditional display manager
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* [ ] One built-in terminal emulator
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* [ ] Consider multiplexing later if actually needed
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## Runtime
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* [ ] Everything remains active after boot
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* [ ] Event-driven system
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* [ ] Ruby command socket
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* [ ] Runtime configuration changes
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* [ ] Hooks can react to:
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* service events
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* package events
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* Wayland events
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* shortcuts
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* system events
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* [ ] Continuously monitor and manage services
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@@ -0,0 +1,42 @@
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <unistd.h>
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#include <cstdlib>
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#include <iostream>
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int main()
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{
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// PID 1
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int console = open("/dev/console", O_RDWR);
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if (console < 0)
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{
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perror("open /dev/console");
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return 1;
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}
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dup2(console, STDIN_FILENO);
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dup2(console, STDOUT_FILENO);
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dup2(console, STDERR_FILENO);
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close(console);
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while (true)
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{
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pid_t pid = fork();
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if (pid == 0)
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{
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execl("/bin/sh", "sh", nullptr);
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perror("exec");
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_exit(127);
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}
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if (pid > 0)
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{
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waitpid(pid, nullptr, 0);
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}
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}
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}
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Reference in New Issue
Block a user