linters, some ast headers

build.zig

@@ -1,5 +1,8 @@
 const std = @import("std");
 
+const c_lib = &[_][]const u8{ "tokenizer.c", "ast.c", "zig1.c" };
+const all_c_files = c_lib ++ &[_][]const u8{"main.c"};
+
 pub fn build(b: *std.Build) void {
     const target = b.standardTargetOptions(.{});
     const optimize = b.standardOptimizeOption(.{});
@@ -9,8 +12,8 @@ pub fn build(b: *std.Build) void {
         .optimize = optimize,
         .target = target,
     });
-    lib.addCSourceFile(.{
-        .file = b.path("tokenizer.c"),
+    lib.addCSourceFiles(.{
+        .files = c_lib,
         .flags = &[_][]const u8{
             "-std=c11",
             "-Wall",
@@ -35,13 +38,44 @@ pub fn build(b: *std.Build) void {
     lib.linkLibC();
 
     const test_step = b.step("test", "Run unit tests");
-
     const test_exe = b.addTest(.{
         .root_source_file = b.path("test_all.zig"),
         .optimize = optimize,
     });
     test_exe.linkLibrary(lib);
     test_exe.addIncludePath(b.path("."));
-
     test_step.dependOn(&b.addRunArtifact(test_exe).step);
+
+    const lint_step = b.step("lint", "Run linters");
+    const clang_format = b.addSystemCommand(&.{"clang-format"});
+    clang_format.addArgs(&.{ "--style=webkit", "-i" });
+    for (all_c_files) |cfile| clang_format.addFileArg(b.path(cfile));
+    lint_step.dependOn(&clang_format.step);
+
+    const clang_analyze = b.addSystemCommand(&.{"clang"});
+    clang_analyze.addArgs(&.{
+        "--analyze",
+        "--analyzer-output",
+        "text",
+        "-Wno-unused-command-line-argument",
+        "-Werror",
+    });
+    for (all_c_files) |cfile| clang_analyze.addFileArg(b.path(cfile));
+    lint_step.dependOn(&clang_analyze.step);
+
+    const gcc_analyze = b.addSystemCommand(&.{"gcc"});
+    gcc_analyze.addArgs(&.{ "--analyzer", "-Werror", "-o", "/dev/null" });
+    for (all_c_files) |cfile| gcc_analyze.addFileArg(b.path(cfile));
+    lint_step.dependOn(&gcc_analyze.step);
+
+    const cppcheck = b.addSystemCommand(&.{"cppcheck"});
+    cppcheck.addArgs(&.{
+        "--enable=all",
+        "--suppress=missingIncludeSystem",
+        "--suppress=checkersReport",
+        "--quiet",
+        "--suppress=unusedFunction", // TODO remove after plumbing is done
+    });
+    for (all_c_files) |cfile| cppcheck.addFileArg(b.path(cfile));
+    lint_step.dependOn(&cppcheck.step);
 }