Meg's Mirrors

zig

1	//! Fail the build step if a file does not match certain checks.
2	const CheckFile = @This();
3
4	const std = @import("std");
5	const Io = std.Io;
6	const Step = std.Build.Step;
7	const fs = std.fs;
8	const mem = std.mem;
9	const Configuration = std.Build.Configuration;
10
11	step: Step,
12	file: std.Build.LazyPath,
13	expected_matches: []const Configuration.Bytes,
14	expected_exact: ?Configuration.Bytes,
15	max_bytes: ?u32,
16
17	pub const base_tag: Step.Tag = .check_file;
18
19	pub const Options = struct {
20	expected_matches: []const []const u8 = &.{},
21	expected_exact: ?[]const u8 = null,
22	max_bytes: ?u32 = null,
23	};
24
25	pub fn create(owner: *std.Build, file: std.Build.LazyPath, options: Options) *CheckFile {
26	const graph = owner.graph;
27	const check_file = graph.create(CheckFile);
28	check_file.* = .{
29	.step = .init(.{
30	.tag = base_tag,
31	.name = "CheckFile",
32	.owner = owner,
33	}),
34	.file = file.dupe(graph),
35	.expected_matches = graph.addBytesList(options.expected_matches),
36	.expected_exact = if (options.expected_exact) |b| graph.addBytes(b) else null,
37	.max_bytes = options.max_bytes,
38	};
39	file.addStepDependencies(&check_file.step);
40	return check_file;
41	}
42
43	pub fn setName(check_file: *CheckFile, name: []const u8) void {
44	check_file.step.name = name;
45	}