clang: Migrate to `CMake`, dropping `bear`.

specs/clang/template/.githooks/pre-commit

@@ -10,7 +10,7 @@ STAGED=$(
 TARGETS=()
 while IFS= read -r FILENAME
 do
-  if [[ "$FILENAME" =~ .*\.c$ ]] || [[ "$FILENAME" =~ .*\.h$ ]]; then
+  if [[ "$FILENAME" =~ .*\.c(pp)?$ ]] || [[ "$FILENAME" =~ .*\.h(pp)?$ ]]; then
     TARGETS+=("${FILENAME}")
   fi
 done <<< "$STAGED"

specs/clang/template/.gitignore

@@ -4,9 +4,6 @@
 # Directory used by `direnv` to hold `use flake`-generated profiles.
 /.direnv/
 
-# The compilation database produced by `bear`.
-/compile_commands.json
-
 # The directory containing all build outputs.
 /dist/
 
@@ -15,3 +12,19 @@
 
 # A symlink produced by default when running `nix build`.
 /result
+
+# The default executable built.
+/a.out
+
+# Files generated by CMake.
+CMakeLists.txt.user
+CMakeCache.txt
+CMakeFiles
+CMakeScripts
+Testing
+Makefile
+cmake_install.cmake
+install_manifest.txt
+compile_commands.json
+CTestTestfile.cmake
+_deps

specs/clang/template/CMakeLists.txt

@@ -0,0 +1,7 @@
+cmake_minimum_required(VERSION 3.15)
+
+project(App VERSION 0.1.0)
+
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+
+add_executable(a.out main.c)

specs/clang/template/flake.nix

@@ -15,7 +15,7 @@
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
   };
 
-  outputs = { self, nixpkgs, flake-utils, ... }:
+  outputs = { nixpkgs, flake-utils, ... }:
     flake-utils.lib.eachDefaultSystem (system:
       let
         pkgs = nixpkgs.legacyPackages.${system};
@@ -30,8 +30,8 @@
           stdenv = pkgs.clangStdenv;
         } {
           packages = with pkgs; [
-            bear
             clang-tools
+            cmake
             codelldb
             doxygen
           ];