initial commit

.envrc

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+# ^ make editor happy
+
+#
+# Use https://direnv.net/ to automatically load the dev shell.
+#
+
+if ! has nix_direnv_version || ! nix_direnv_version 3.0.4; then
+  source_url "https://raw.githubusercontent.com/nix-community/nix-direnv/3.0.4/direnvrc" "sha256-DzlYZ33mWF/Gs8DDeyjr8mnVmQGx7ASYqA5WlxwvBG4="
+fi
+
+watch_file nix/**
+watch_file -- **/*.nix
+# Adding files to git includes them in a flake
+# But it is also a bit much reloading.
+# watch_file .git/index .git/HEAD
+use flake . --show-trace

.gitignore

@@ -0,0 +1,3 @@
+.direnv/*
+build
+result

CMakeLists.txt

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+
+cmake_minimum_required(VERSION 3.10)
+
+project(
+  mosh-me
+  VERSION 0.1.0
+  LANGUAGES CXX)
+
+find_package(spdlog REQUIRED)
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(FFMPEG REQUIRED IMPORTED_TARGET
+    libavcodec
+    libavformat
+    libavutil
+)
+
+# ##############################################################################
+
+add_executable(mosh-me ${PROJECT_SOURCE_DIR}/app/mosh-me.cpp)
+
+target_link_libraries(mosh-me PkgConfig::FFMPEG spdlog::spdlog)
+target_compile_features(mosh-me PUBLIC cxx_std_23)
+target_include_directories(mosh-me PRIVATE ${PROJECT_SOURCE_DIR}/include)
+
+install(TARGETS mosh-me)
+
+################################################################################
+
+if(CMAKE_EXPORT_COMPILE_COMMANDS)
+  set(CMAKE_CXX_STANDARD_INCLUDE_DIRECTORIES ${CMAKE_CXX_IMPLICIT_INCLUDE_DIRECTORIES})
+  set(CMAKE_C_STANDARD_INCLUDE_DIRECTORIES ${CMAKE_C_IMPLICIT_INCLUDE_DIRECTORIES})
+endif()

app/mosh-me.cpp

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+#include <spdlog/spdlog.h>
+
+int main() { spdlog::info("Hello!!"); }

flake.lock

@@ -0,0 +1,61 @@
+{
+  "nodes": {
+    "flake-parts": {
+      "inputs": {
+        "nixpkgs-lib": "nixpkgs-lib"
+      },
+      "locked": {
+        "lastModified": 1762980239,
+        "narHash": "sha256-8oNVE8TrD19ulHinjaqONf9QWCKK+w4url56cdStMpM=",
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "rev": "52a2caecc898d0b46b2b905f058ccc5081f842da",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1763618868,
+        "narHash": "sha256-v5afmLjn/uyD9EQuPBn7nZuaZVV9r+JerayK/4wvdWA=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "a8d610af3f1a5fb71e23e08434d8d61a466fc942",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-lib": {
+      "locked": {
+        "lastModified": 1761765539,
+        "narHash": "sha256-b0yj6kfvO8ApcSE+QmA6mUfu8IYG6/uU28OFn4PaC8M=",
+        "owner": "nix-community",
+        "repo": "nixpkgs.lib",
+        "rev": "719359f4562934ae99f5443f20aa06c2ffff91fc",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "nixpkgs.lib",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-parts": "flake-parts",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

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+{
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    flake-parts.url = "github:hercules-ci/flake-parts";
+  };
+  outputs = inputs @ {flake-parts, ...}:
+    flake-parts.lib.mkFlake {inherit inputs;} ({self, ...}: {
+      imports = [];
+      flake = {
+        overlays.mosh-me = final: prev: {
+          mosh-me = final.callPackage ./nix/mosh-me.nix {};
+        };
+      };
+      systems = [
+        "x86_64-linux"
+      ];
+      perSystem = {
+        pkgs,
+        system,
+        self',
+        ...
+      }: {
+        _module.args.pkgs = import inputs.nixpkgs {
+          inherit system;
+          overlays = [
+            self.overlays.mosh-me
+          ];
+          config = {};
+        };
+
+        packages.default = pkgs.mosh-me;
+        packages.mosh-me = pkgs.mosh-me;
+
+        devShells.default = self'.devShells.mosh-me;
+        devShells.mosh-me = pkgs.mkShellNoCC {
+          shellHook = ''
+            export CMAKE_EXPORT_COMPILE_COMMANDS=ON
+            export CMAKE_BUILD_TYPE=Debug
+            export CMAKE_GENERATOR=Ninja
+          '';
+          packages = [
+            pkgs.clang-tools
+            pkgs.cmake-language-server
+            pkgs.gdb
+          ];
+          inputsFrom = [pkgs.mosh-me];
+        };
+      };
+    });
+}

nix/mosh-me.nix

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+{
+  cmake,
+  lib,
+  ninja,
+  spdlog,
+  stdenv,
+  pkg-config,
+  ffmpeg,
+}:
+stdenv.mkDerivation (finalAttrs: {
+  name = "mosh-me";
+  src = ../.;
+  nativeBuildInputs = [cmake ninja pkg-config];
+  buildInputs = [ffmpeg spdlog];
+  cmakeFlags = [
+    (lib.cmakeBool "BUILD_TESTING" finalAttrs.doCheck)
+  ];
+  doCheck = stdenv.buildPlatform.canExecute stdenv.hostPlatform;
+})