50 lines
1.7 KiB
Zig
50 lines
1.7 KiB
Zig
const std = @import("std");
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pub fn usage() void {
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std.debug.print("generates a loader module which calls the start_modules for all the modules that the game module depends on.\ngenerate-mod-api <output file name> <module_name> <module list>\n", .{});
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}
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pub fn main() !void {
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var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);
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defer arena.deinit();
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const allocator = arena.allocator();
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// Get output filename from build system
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const args = try std.process.argsAlloc(allocator);
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if (args.len < 3) {
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usage();
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@panic("Missing output filename\n");
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}
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const out_path = args[1];
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const module_name = args[2];
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const module_list = args[3..];
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var writer = std.ArrayList(u8){};
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try writer.print(allocator, "pub const moduleName:[]const u8 = \"{s}\";\n", .{module_name});
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try writer.print(allocator, "pub const moduleList:[]const []const u8 = &.{{\n", .{});
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for (module_list) |mod| {
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try writer.print(allocator, "\"{s}\",\n", .{mod});
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}
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try writer.print(allocator, "}};\n", .{});
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for (module_list) |mod| {
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try writer.print(allocator, "pub const {s} = @import(\"{s}\").module;\n", .{ mod, mod });
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}
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try writer.append(allocator, 0);
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const file = try std.fs.cwd().createFile(out_path, .{});
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defer file.close();
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var ast = try std.zig.Ast.parse(allocator, @as([:0]const u8, @ptrCast(writer.items[0 .. writer.items.len - 1])), .zig);
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// std.debug.print("output=\n{s}", .{writer.items[0 .. writer.items.len - 1]});
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defer ast.deinit(allocator);
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const out = try ast.renderAlloc(allocator);
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// Write the content to the file
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try file.writeAll(out);
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}
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