runPackageScript

pub inline fn runPackageScript(b: *Build, comptime build_zig: anytype) void {
    const result: anyerror!void = build_zig.build(b);
    result catch |err| switch (err) {
        error.LazyDependencyNeeded => assert(b.graph.needed_lazy_dependencies.count() != 0),
        else => {
            if (b.dep_prefix.len == 0) {
                log.err("package {q} configuration failed: {t}", .{ b.dep_prefix, err });
            } else {
                log.err("configuration failed: {t}", .{err});
            }
            if (@errorReturnTrace()) |trace| std.debug.dumpErrorReturnTrace(trace);
            const lazy_count = b.graph.needed_lazy_dependencies.count();
            if (lazy_count == 0) process.exit(1);
            log.info("{d} lazy dependencies detected; fetching and retrying configuration", .{lazy_count});
        },
    };
}