44
55import 'dart:io' ;
66
7- import 'package:archive/archive_io .dart' ;
7+ import 'package:crypto/crypto .dart' show sha256 ;
88import 'package:native_assets_cli/native_assets_cli.dart' ;
99import 'package:path/path.dart' as path;
1010
11+ import 'hashes.dart' ;
12+ import 'version.dart' ;
13+
1114const crateName = 'icu_capi' ;
1215const package = 'intl4x' ;
1316const assetId = 'src/bindings/lib.g.dart' ;
1417
18+ final env = 'ICU4X_BUILD_MODE' ;
19+
1520void main (List <String > args) async {
1621 await build (args, (config, output) async {
17- final buildMode = switch (Platform .environment['ICU4X_BUILD_MODE' ]) {
18- 'local' => LocalMode (),
22+ final environmentBuildMode = Platform .environment[env];
23+ final buildMode = switch (environmentBuildMode) {
24+ 'local' => LocalMode (config),
1925 'checkout' => CheckoutMode (config),
2026 'fetch' || null => FetchMode (config),
2127 String () => throw ArgumentError ('''
@@ -30,6 +36,8 @@ Unknown build mode for icu4x. Set the `ICU4X_BUILD_MODE` environment variable wi
3036 };
3137
3238 final builtLibrary = await buildMode.build ();
39+ // For debugging purposes
40+ output.addMetadatum (env, environmentBuildMode ?? 'fetch' );
3341
3442 output.addAsset (NativeCodeAsset (
3543 package: package,
@@ -44,86 +52,91 @@ Unknown build mode for icu4x. Set the `ICU4X_BUILD_MODE` environment variable wi
4452 [
4553 ...buildMode.dependencies,
4654 config.packageRoot.resolve ('hook/build.dart' ),
47- //TODO: Fix this, currently causes a rebuild for checkout mode
48- //builtLibrary,
4955 ],
5056 );
5157 });
5258}
5359
54- void unzipFirstFile ({required File input, required File output}) {
55- final inputStream = InputFileStream (input.path);
56- final archive = ZipDecoder ().decodeBuffer (inputStream);
57- final file = archive.files.firstOrNull;
58- // If it's a file and not a directory
59- if (file? .isFile ?? false ) {
60- final outputStream = OutputFileStream (output.path);
61- file! .writeContent (outputStream);
62- outputStream.close ();
63- }
64- }
65-
6660sealed class BuildMode {
61+ final BuildConfig config;
62+
63+ const BuildMode (this .config);
64+
6765 List <Uri > get dependencies;
6866
6967 Future <Uri > build ();
7068}
7169
72- final class FetchMode implements BuildMode {
73- final BuildConfig config;
74-
75- FetchMode (this .config);
70+ final class FetchMode extends BuildMode {
71+ FetchMode (super .config);
7672
7773 @override
7874 Future <Uri > build () async {
79- // TODO: Get a nicer CDN than a generated link to a privately owned repo.
75+ final target = '${ config . targetOS }_${ config . targetArchitecture }' ;
8076 final uri = Uri .parse (
81- 'https://nightly.link/mosuem /i18n/workflows/intl4x_artifacts/main/lib-$ platformName -latest.zip ' );
77+ 'https://github.com/dart-lang /i18n/releases/download/$ version /$ target ' );
8278 final request = await HttpClient ().getUrl (uri);
8379 final response = await request.close ();
8480 if (response.statusCode != 200 ) {
8581 throw ArgumentError ('The request to $uri failed' );
8682 }
87- final zippedDynamicLibrary =
88- File (path.join (Directory .systemTemp.path, 'tmp.zip' ));
89- zippedDynamicLibrary.createSync ();
90- await response.pipe (zippedDynamicLibrary.openWrite ());
91-
92- final dynamicLibrary =
93- File .fromUri (config.outputDirectory.resolve ('icu4xlib' ));
83+ final dynamicLibrary = File .fromUri (
84+ config.outputDirectory.resolve (config.targetOS.dylibFileName ('icu4x' )));
9485 await dynamicLibrary.create ();
95- unzipFirstFile (input: zippedDynamicLibrary, output: dynamicLibrary);
96- return dynamicLibrary.uri;
97- }
86+ await response.pipe (dynamicLibrary.openWrite ());
9887
99- String get platformName {
100- if (Platform .isMacOS) {
101- return 'macos' ;
102- } else if (Platform .isWindows) {
103- return 'windows' ;
88+ final bytes = await dynamicLibrary.readAsBytes ();
89+ final fileHash = sha256.convert (bytes).toString ();
90+ final expectedFileHash = fileHashes[(
91+ config.targetOS,
92+ config.targetArchitecture,
93+ )];
94+ if (fileHash == expectedFileHash) {
95+ return dynamicLibrary.uri;
10496 } else {
105- return 'ubuntu' ;
97+ throw Exception (
98+ 'The pre-built binary for the target $target at $uri has a hash of '
99+ '$fileHash , which does not match $expectedFileHash fixed in the '
100+ 'build hook of package:intl4x.' );
106101 }
107102 }
108103
109104 @override
110105 List <Uri > get dependencies => [];
111106}
112107
113- final class LocalMode implements BuildMode {
114- String get _localBinaryPath => Platform .environment['LOCAL_ICU4X_BINARY' ]! ;
108+ final class LocalMode extends BuildMode {
109+ LocalMode (super .config);
110+
111+ String get _localBinaryPath {
112+ final localPath = Platform .environment['LOCAL_ICU4X_BINARY' ];
113+ if (localPath != null ) {
114+ return localPath;
115+ }
116+ throw ArgumentError ('`LOCAL_ICU4X_BINARY` is empty. '
117+ 'If the `ICU4X_BUILD_MODE` is set to `local`, the '
118+ '`LOCAL_ICU4X_BINARY` environment variable must contain the path to '
119+ 'the binary.' );
120+ }
115121
116122 @override
117- Future <Uri > build () async => Uri .file (_localBinaryPath);
123+ Future <Uri > build () async {
124+ final dylibFileName = config.targetOS.dylibFileName ('icu4x' );
125+ final dylibFileUri = config.outputDirectory.resolve (dylibFileName);
126+ final file = File (_localBinaryPath);
127+ if (! (await file.exists ())) {
128+ throw FileSystemException ('Could not find binary.' , _localBinaryPath);
129+ }
130+ await file.copy (dylibFileUri.toFilePath (windows: Platform .isWindows));
131+ return dylibFileUri;
132+ }
118133
119134 @override
120135 List <Uri > get dependencies => [Uri .file (_localBinaryPath)];
121136}
122137
123- final class CheckoutMode implements BuildMode {
124- final BuildConfig config;
125-
126- CheckoutMode (this .config);
138+ final class CheckoutMode extends BuildMode {
139+ CheckoutMode (super .config);
127140
128141 String ? get workingDirectory => Platform .environment['LOCAL_ICU4X_CHECKOUT' ];
129142
@@ -235,7 +248,7 @@ Future<Uri> buildLib(BuildConfig config, String workingDirectory) async {
235248 if (! (await file.exists ())) {
236249 throw FileSystemException ('Building the dylib failed' , builtPath);
237250 }
238- await file.copy (dylibFileUri.path );
251+ await file.copy (dylibFileUri.toFilePath (windows : Platform .isWindows) );
239252 }
240253 return dylibFileUri;
241254}
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