-
Notifications
You must be signed in to change notification settings - Fork 0
/
build.zig
152 lines (131 loc) · 4.95 KB
/
build.zig
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
const std = @import("std");
pub fn build(b: *std.Build) !void {
const target = b.standardTargetOptions(.{});
const optimize = b.standardOptimizeOption(.{});
const wasm = b.addExecutable(.{
.name = "totp-wasm-zig",
.root_source_file = b.path("src/main.zig"),
.target = b.resolveTargetQuery(.{
.cpu_arch = .wasm32,
.os_tag = .freestanding,
}),
.optimize = .ReleaseSmall,
});
wasm.entry = .disabled;
wasm.import_memory = true;
wasm.rdynamic = true;
b.installArtifact(wasm);
const test_step = b.step("test", "Run tests");
{
const otp_tests = b.addTest(.{
.root_source_file = b.path("src/otp.zig"),
.target = target,
.optimize = optimize,
});
const run_otp_tests = b.addRunArtifact(otp_tests);
test_step.dependOn(&run_otp_tests.step);
}
{
const base32_tests = b.addTest(.{
.root_source_file = b.path("src/base32.zig"),
.target = target,
.optimize = optimize,
});
const run_base32_tests = b.addRunArtifact(base32_tests);
test_step.dependOn(&run_base32_tests.step);
}
const bindgen_step = b.step("bind", "Generate JavaScript bindings");
{
const optimize_wasm = OptimizeWasmStep.create(b, wasm);
bindgen_step.dependOn(&optimize_wasm.step);
const gen_wasmdata = GenWasmDateStep.create(b, wasm);
gen_wasmdata.step.dependOn(&optimize_wasm.step);
bindgen_step.dependOn(&gen_wasmdata.step);
}
}
const GenWasmDateStep = struct {
step: std.Build.Step,
wasm: *std.Build.Step.Compile,
pub fn create(owner: *std.Build, wasm: *std.Build.Step.Compile) *GenWasmDateStep {
const self = owner.allocator.create(GenWasmDateStep) catch unreachable;
self.* = .{
.step = std.Build.Step.init(.{
.id = .custom,
.name = "gen wasmdata",
.owner = owner,
.makeFn = GenWasmDateStep.make,
}),
.wasm = wasm,
};
return self;
}
pub fn make(step: *std.Build.Step, _: std.Progress.Node) anyerror!void {
const self: *GenWasmDateStep = @fieldParentPtr("step", step);
const alloc = self.step.owner.allocator;
const base64_encoder = std.base64.standard.Encoder;
const wasmopt_out = try std.fs.path.join(alloc, &.{
self.step.owner.build_root.path.?,
"packages/totp-wasm/dist/totp-wasm.wasm",
});
const wasmfile = try std.fs.openFileAbsolute(wasmopt_out, .{ .mode = .read_only });
defer wasmfile.close();
const meta = try wasmfile.metadata();
const buf = try alloc.alloc(u8, meta.size());
defer alloc.free(buf);
_ = try wasmfile.readAll(buf);
const encoded = try alloc.alloc(u8, base64_encoder.calcSize(buf.len));
defer alloc.free(encoded);
_ = base64_encoder.encode(encoded, buf);
var wasmdata = std.ArrayList(u8).init(alloc);
defer wasmdata.deinit();
try wasmdata.appendSlice("// @ts-nocheck wasmdata\nexport const wasm_data = \"");
try wasmdata.appendSlice(encoded);
try wasmdata.appendSlice("\";");
var wasmdata_file = std.fs.cwd().createFile("packages/totp-wasm/dist/wasm_data.js", .{}) catch unreachable;
defer wasmdata_file.close();
try wasmdata_file.writeAll(wasmdata.items);
}
};
const OptimizeWasmStep = struct {
step: std.Build.Step,
wasm: *std.Build.Step.Compile,
pub fn create(owner: *std.Build, wasm: *std.Build.Step.Compile) *OptimizeWasmStep {
const self = owner.allocator.create(OptimizeWasmStep) catch unreachable;
self.* = .{
.step = std.Build.Step.init(.{
.id = .custom,
.name = "optimize wasm",
.owner = owner,
.makeFn = OptimizeWasmStep.make,
}),
.wasm = wasm,
};
return self;
}
pub fn make(step: *std.Build.Step, _: std.Progress.Node) anyerror!void {
const self: *OptimizeWasmStep = @fieldParentPtr("step", step);
const owner = self.step.owner;
const wasm_filename = try std.fs.path.join(owner.allocator, &.{
owner.exe_dir,
self.wasm.out_filename,
});
const output_file = try std.fs.path.join(owner.allocator, &.{
owner.build_root.path.?,
"packages/totp-wasm/dist/totp-wasm.wasm",
});
if (owner.findProgram(&.{"wasm-opt"}, &.{"node_modules/.bin"})) |opt| {
_ = owner.run(&.{
opt,
"-Os",
"--strip-debug",
"--strip-producers",
"--zero-filled-memory",
wasm_filename,
"-o",
output_file,
});
} else |_| {
try std.fs.copyFileAbsolute(wasm_filename, output_file, .{});
}
}
};