Reduce complexity of build script
continuous-integration/drone/push Build is passing
Details
continuous-integration/drone/push Build is passing
Details
This commit is contained in:
parent
c68753bf84
commit
e350d88793
145
build.zig
145
build.zig
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@ -12,15 +12,23 @@ const Project = struct {
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optimize: std.builtin.OptimizeMode,
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imports: ImportList,
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pub fn find_demos(self: Project, b: *std.Build) !void {
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const demos = b.step("demos", "Build demos");
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var dir = try std.fs.openDirAbsolute(b.path("demos/").getPath(b), .{.iterate = true});
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pub fn demos_step(self: *const Project, b: *std.Build) *std.Build.Step {
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const Demos = struct {
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step: std.Build.Step,
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project: *const Project,
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const Self = @This();
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fn make(step: *std.Build.Step, _: std.Progress.Node) anyerror!void {
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const demos: *const Self = @fieldParentPtr("step", step);
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const absolute_path = step.owner.path("demos/").getPath(step.owner);
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var dir = try std.fs.openDirAbsolute(absolute_path, .{.iterate = true});
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defer {
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dir.close();
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}
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var entries = try dir.walk(b.allocator);
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var entries = try dir.walk(step.owner.allocator);
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defer {
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entries.deinit();
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@ -31,28 +39,43 @@ const Project = struct {
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continue;
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}
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const source_path = try sub_path(.{"demos", entry.basename});
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const source_path = step.owner.pathJoin(&.{"demos", entry.basename});
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var path_buffer = [_:0]u8{0} ** 255;
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const demo = b.addExecutable(.{
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const demo = step.owner.addExecutable(.{
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.name = try std.fmt.bufPrint(&path_buffer, "{s}.out", .{std.fs.path.stem(entry.basename)}),
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.root_source_file = b.path(source_path.bytes()),
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.target = self.target,
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.optimize = self.optimize,
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.root_source_file = step.owner.path(source_path),
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.target = demos.project.target,
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.optimize = demos.project.optimize,
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});
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for (self.imports.items) |import| {
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for (demos.project.imports.items) |import| {
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demo.root_module.addImport(import.name, import.module);
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}
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demos.dependOn(&b.addInstallArtifact(demo, .{
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.dest_dir = .{
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.override = .{
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.custom = "../demos/",
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},
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},
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}).step);
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step.owner.installArtifact(demo);
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}
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step.state = .success;
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}
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};
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const demos = b.allocator.create(Demos) catch {
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@panic("OOM");
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};
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demos.* = .{
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.step = std.Build.Step.init(.{
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.id = .custom,
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.name = "demos",
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.makeFn = Demos.make,
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.owner = b,
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}),
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.project = self,
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};
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return &demos.step;
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}
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pub fn find_tests(self: Project, b: *std.Build) !void {
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@ -123,15 +146,13 @@ const Project = struct {
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var binary_buffer = [_:0]u8{0} ** 255;
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const binary_name = try std.fmt.bufPrint(&binary_buffer, "{s}.spv", .{entry.path});
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const full_source_path = try sub_path(.{shaders_path, entry.path});
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const full_binary_path = try sub_path(.{shaders_path, binary_name});
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const glslang_validator_args = [_][]const u8{
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"glslangValidator",
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"-V",
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full_source_path.bytes(),
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b.pathJoin(&.{shaders_path, entry.path}),
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"-o",
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full_binary_path.bytes(),
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b.pathJoin(&.{shaders_path, binary_name}),
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};
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shaders_dir.access(binary_name, .{.mode = .read_only}) catch {
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@ -155,45 +176,12 @@ const Project = struct {
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}
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};
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const SubPath = struct {
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buffer: [max]u8 = [_]u8{0} ** max,
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unused: u8 = max,
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pub const max = 255;
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pub fn append(self: *SubPath, component: []const u8) !void {
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const used = max - self.unused;
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if (used != 0 and self.buffer[used - 1] != '/') {
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if (component.len > self.unused) {
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return error.PathTooBig;
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}
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@memcpy(self.buffer[used .. (used + component.len)], component);
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self.unused -= @intCast(component.len);
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} else {
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const required_len = component.len + 1;
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if (required_len > self.unused) {
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return error.PathTooBig;
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}
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@memcpy(self.buffer[used .. (used + component.len)], component);
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self.buffer[component.len] = '/';
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self.unused -= @intCast(required_len);
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}
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}
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pub fn bytes(self: *const SubPath) [:0]const u8 {
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return @ptrCast(self.buffer[0 .. max - self.unused]);
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}
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};
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pub fn build(b: *std.Build) !void {
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var project = Project{
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const project = b.allocator.create(Project) catch {
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@panic("OOM");
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};
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project.* = .{
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.imports = ImportList.init(b.allocator),
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.target = b.standardTargetOptions(.{}),
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.optimize = b.standardOptimizeOption(.{}),
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@ -286,42 +274,7 @@ pub fn build(b: *std.Build) !void {
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gfx_module.link_libc = true;
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b.step("demos", "Build demos").dependOn(project.demos_step(b));
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try project.find_tests(b);
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try project.find_demos(b);
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}
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fn sub_path(components: anytype) !SubPath {
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var path = comptime try std.BoundedArray(u8, SubPath.max).init(0);
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const Components = @TypeOf(components);
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switch (@typeInfo(Components)) {
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.Struct => |@"struct"| {
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if (!@"struct".is_tuple) {
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@compileError("`components` must be a tuple");
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}
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const last_component_index = components.len - 1;
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inline for (components, 0 .. components.len) |component, i| {
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path.appendSlice(component) catch {
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return error.PathTooBig;
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};
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if (i < last_component_index and !std.mem.endsWith(u8, component, "/")) {
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path.append('/') catch {
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return error.PathTooBig;
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};
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}
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}
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},
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else => {
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@compileError("`components` cannot be a " ++ @typeName(Components));
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}
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}
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return .{
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.unused = SubPath.max - path.len,
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.buffer = path.buffer,
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};
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}
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