rename window package to apprt

src/apprt.zig

@@ -0,0 +1,27 @@
+//! "apprt" is the "application runtime" package. This abstracts the
+//! application runtime and lifecycle management such as creating windows,
+//! getting user input (mouse/keyboard), etc.
+//!
+//! This enables compile-time interfaces to be built to swap out the underlying
+//! application runtime. For example: glfw, pure macOS Cocoa, GTK+, browser, etc.
+//!
+//! The goal is to have different implementations share as much of the core
+//! logic as possible, and to only reach out to platform-specific implementation
+//! code when absolutely necessary.
+const builtin = @import("builtin");
+
+pub usingnamespace @import("apprt/structs.zig");
+pub const glfw = @import("apprt/glfw.zig");
+pub const Window = @import("apprt/Window.zig");
+
+/// The implementation to use for the app runtime. This is comptime chosen
+/// so that every build has exactly one application runtime implementation.
+/// Note: it is very rare to use Runtime directly; most usage will use
+/// Window or something.
+pub const runtime = switch (builtin.os.tag) {
+    else => glfw,
+};
+
+test {
+    @import("std").testing.refAllDecls(@This());
+}