fold app/ into src/editor/

Signed-off-by: Stephen Gutekanst <stephen@hexops.com>

build.zig

@@ -63,7 +63,7 @@ pub fn build(b: *std.Build) !void {
     if (target.getCpuArch() != .wasm32) {
         const app = b.addExecutable(.{
             .name = "mach",
-            .root_source_file = .{ .path = "app/main.zig" },
+            .root_source_file = .{ .path = "src/mach.zig" },
             .version = .{ .major = 0, .minor = 1, .patch = 0 },
             .optimize = optimize,
             .target = target,

src/editor/Builder.zig

@@ -2,7 +2,7 @@ const std = @import("std");
 const mime_map = @import("Builder/mime.zig").mime_map;
 const Target = @import("target.zig").Target;
 const OptimizeMode = std.builtin.OptimizeMode;
-const allocator = @import("root").allocator;
+const allocator = @import("entrypoint.zig").allocator;
 
 const Builder = @This();
 

src/editor/entrypoint.zig

@@ -10,7 +10,7 @@ var arg_i: usize = 1;
 var gpa = std.heap.GeneralPurposeAllocator(.{}){};
 pub const allocator = gpa.allocator();
 
-pub fn main() !void {
+pub fn Main() !void {
     defer _ = gpa.deinit();
 
     args = try std.process.argsAlloc(allocator);

src/editor/target.zig

@@ -1,5 +1,5 @@
 const std = @import("std");
-const allocator = @import("root").allocator;
+const allocator = @import("entrypoint.zig").allocator;
 
 pub const Target = enum {
     @"linux-x86_64",

src/mach.zig

@@ -0,0 +1,7 @@
+//! The 'mach' CLI and engine editor
+
+const entrypoint = @import("editor/entrypoint.zig");
+
+pub fn main() !void {
+    try entrypoint.Main();
+}