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
|
{
lib,
stdenv,
systemPlatform,
buildDartApplication,
runCommand,
writeTextFile,
git,
which,
dart,
version,
flutterSrc,
patches ? [ ],
pubspecLock,
engineVersion,
}:
let
# https://github.com/flutter/flutter/blob/17c92b7ba68ea609f4eb3405211d019c9dbc4d27/engine/src/flutter/tools/engine_tool/test/commands/stamp_command_test.dart#L125
engine_stamp = writeTextFile {
name = "engine_stamp";
text = builtins.toJSON {
build_date = "2025-06-27T12:30:00.000Z";
build_time_ms = 1751027400000;
git_revision = engineVersion;
git_revision_date = "2025-06-27T17:11:53-07:00";
content_hash = "1111111111111111111111111111111111111111";
};
};
dartEntryPoints."flutter_tools.snapshot" = "bin/flutter_tools.dart";
in
buildDartApplication.override { inherit dart; } {
pname = "flutter-tools";
inherit version dartEntryPoints;
dartOutputType = "jit-snapshot";
src = flutterSrc;
sourceRoot = "${flutterSrc.name}/packages/flutter_tools";
inherit patches;
# The given patches are made for the entire SDK source tree.
prePatch = ''
chmod --recursive u+w "../.."
pushd "../.."
'';
postPatch = ''
popd
''
# Use arm64 instead of arm64e.
+ lib.optionalString stdenv.hostPlatform.isDarwin ''
substituteInPlace lib/src/ios/xcodeproj.dart \
--replace-fail arm64e arm64
''
# need network
+ lib.optionalString (lib.versionAtLeast version "3.35.0") ''
cp ${engine_stamp} ../../bin/cache/engine_stamp.json
substituteInPlace lib/src/flutter_cache.dart \
--replace-fail "registerArtifact(FlutterEngineStamp(this, logger));" ""
'';
# When the JIT snapshot is being built, the application needs to run.
# It attempts to generate configuration files, and relies on a few external
# tools.
nativeBuildInputs = [
git
which
];
preConfigure = ''
export HOME=.
export FLUTTER_ROOT="$(realpath ../../)"
mkdir --parents "$FLUTTER_ROOT/bin/cache"
ln --symbolic '${dart}' "$FLUTTER_ROOT/bin/cache/dart-sdk"
'';
dartCompileFlags = [ "--define=NIX_FLUTTER_HOST_PLATFORM=${systemPlatform}" ];
# The Dart wrapper launchers are useless for the Flutter tool - it is designed
# to be launched from a snapshot by the SDK.
postInstall = ''
pushd "$out"
rm ${builtins.concatStringsSep " " (builtins.attrNames dartEntryPoints)}
popd
'';
sdkSourceBuilders = {
# https://github.com/dart-lang/pub/blob/e1fbda73d1ac597474b82882ee0bf6ecea5df108/lib/src/sdk/dart.dart#L80
"dart" =
name:
runCommand "dart-sdk-${name}" { passthru.packageRoot = "."; } ''
for path in '${dart}/pkg/${name}'; do
if [ -d "$path" ]; then
ln -s "$path" "$out"
break
fi
done
if [ ! -e "$out" ]; then
echo 1>&2 'The Dart SDK does not contain the requested package: ${name}!'
exit 1
fi
'';
};
inherit pubspecLock;
}
|
