merging the colors into

1 files changed, 34 insertions, 0 deletions

diff --git a/build.zig b/build.zig
index 88d2123a..d5bba19a 100644
--- a/build.zig
+++ b/build.zig
@@ -4,6 +4,11 @@ pub fn build(b: *std.Build) void {
     const optimize = b.standardOptimizeOption(.{});
     const target = b.standardTargetOptions(.{});
 
+    // build-time IO, only used to slurp the grammars' highlights.scm queries.
+    var threaded: std.Io.Threaded = .init(b.allocator, .{});
+    defer threaded.deinit();
+    const io = threaded.io();
+
     // -Dtrace: make the e2e runner print the captured screen state (after each
     //   pump/waitFor and on every assertion) so failures can be inspected live.
     //   Usage: `zig build test -Dtrace`.
@@ -90,6 +95,35 @@ pub fn build(b: *std.Build) void {
     const zstbi_mod = b.dependency("zstbi", .{ .target = target, .optimize = optimize }).module("root");
     exe.root_module.addImport("zstbi", zstbi_mod);
 
+    // tree-sitter syntax highlighting for file panes: the Zig bindings + C runtime
+    // (the `tree-sitter` module), each grammar's parser.c linked as a static lib,
+    // and its highlights.scm read at build time into the `ts_queries` options module.
+    const tree_sitter = b.dependency("tree_sitter", .{ .target = target, .optimize = optimize });
+    exe.root_module.addImport("tree-sitter", tree_sitter.module("tree_sitter"));
+
+    const grammars = .{
+        .{ "c", "ts_c", false },
+        .{ "rust", "ts_rust", true },
+        .{ "zig", "ts_zig", false },
+    };
+    const ts_queries = b.addOptions();
+    inline for (grammars) |g| {
+        const dep = b.dependency(g[1], .{});
+        const query = std.Io.Dir.cwd().readFileAlloc(io, dep.path("queries/highlights.scm").getPath(b), b.allocator, .limited(0x100000)) catch @panic("read " ++ g[0] ++ " highlights");
+        ts_queries.addOption([]const u8, g[0] ++ "_highlights", query);
+
+        const lib = b.addLibrary(.{
+            .name = "tree-sitter-" ++ g[0],
+            .root_module = b.createModule(.{ .target = target, .optimize = optimize, .link_libc = true }),
+            .linkage = .static,
+        });
+        lib.root_module.addCSourceFile(.{ .file = dep.path("src/parser.c") });
+        if (g[2]) lib.root_module.addCSourceFile(.{ .file = dep.path("src/scanner.c") });
+        lib.root_module.addIncludePath(dep.path("src"));
+        exe.root_module.linkLibrary(lib);
+    }
+    exe.root_module.addOptions("ts_queries", ts_queries);
+
     // Install the exe so `zig build` (and `zig build install`) produces it in
     // zig-out/bin for global install, not just as a hidden dep of `run`/`test`.
     b.installArtifact(exe);