Add guided error for precompiled cache error (#177327)

Starting with Xcode 26, when a precompiled file changes (like a header
file in the Flutter framework), it throws an error. This PR parses for
that error and gives a guided error message, telling them to do `flutter
clean`.

Fixes https://github.com/flutter/flutter/issues/176462.

## Pre-launch Checklist

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there for submitting PRs.
- [x] I read the [Tree Hygiene] wiki page, which explains my
responsibilities.
- [x] I read and followed the [Flutter Style Guide], including [Features
we expect every widget to implement].
- [x] I signed the [CLA].
- [x] I listed at least one issue that this PR fixes in the description
above.
- [x] I updated/added relevant documentation (doc comments with `///`).
- [x] I added new tests to check the change I am making, or this PR is
[test-exempt].
- [x] I followed the [breaking change policy] and added [Data Driven
Fixes] where supported.
- [x] All existing and new tests are passing.

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<!-- Links -->
[Contributor Guide]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview
[Tree Hygiene]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md
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https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#tests
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[Features we expect every widget to implement]:
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https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#handling-breaking-changes
[Discord]:
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[Data Driven Fixes]:
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This commit is contained in:
Victoria Ashworth 2025-10-27 09:59:09 -05:00 committed by GitHub
parent 6db955d74f
commit b970827eaa
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
2 changed files with 70 additions and 0 deletions

View File

@ -918,6 +918,12 @@ _XCResultIssueHandlingResult _handleXCResultIssue({
missingModule: missingModule,
);
}
} else if (message.toLowerCase().contains('has been modified since')) {
return _XCResultIssueHandlingResult(
requiresProvisioningProfile: false,
hasProvisioningProfileIssue: false,
modifiedPrecompiledSource: true,
);
}
return _XCResultIssueHandlingResult(
requiresProvisioningProfile: false,
@ -937,6 +943,7 @@ Future<bool> _handleIssues(
var requiresProvisioningProfile = false;
var hasProvisioningProfileIssue = false;
var issueDetected = false;
var modifiedPrecompiledSource = false;
String? missingPlatform;
final duplicateModules = <String>[];
final missingModules = <String>[];
@ -962,6 +969,7 @@ Future<bool> _handleIssues(
if (handlingResult.missingModule != null) {
missingModules.add(handlingResult.missingModule!);
}
modifiedPrecompiledSource = handlingResult.modifiedPrecompiledSource;
issueDetected = true;
}
} else if (xcResult != null) {
@ -1032,6 +1040,13 @@ Future<bool> _handleIssues(
);
}
}
} else if (modifiedPrecompiledSource) {
logger.printError(
'════════════════════════════════════════════════════════════════════════════════\n'
'A precompiled file has been changed since last built. Please run "flutter clean" to clear '
'the cache.\n'
'════════════════════════════════════════════════════════════════════════════════',
);
}
return issueDetected;
}
@ -1169,6 +1184,7 @@ class _XCResultIssueHandlingResult {
this.missingPlatform,
this.duplicateModule,
this.missingModule,
this.modifiedPrecompiledSource = false,
});
/// An issue indicates that user didn't provide the provisioning profile.
@ -1186,6 +1202,10 @@ class _XCResultIssueHandlingResult {
/// An issue indicates a module was imported but not found, potentially due
/// to it being Swift Package Manager compatible only.
final String? missingModule;
/// An issue indicates that a source file, such as a header in the Flutter framework, has
/// changed since last built. This requires "flutter clean" to resolve.
final bool modifiedPrecompiledSource;
}
const _kResultBundlePath = 'temporary_xcresult_bundle';

View File

@ -670,6 +670,56 @@ duplicate symbol '_$s29plugin_1_name23PluginNamePluginC9setDouble3key5valueySS_S
Pub: ThrowingPub.new,
},
);
testWithoutContext('parses file has been modified error', () async {
const buildCommands = <String>['xcrun', 'cc', 'blah'];
final buildResult = XcodeBuildResult(
success: false,
stdout: '',
xcodeBuildExecution: XcodeBuildExecution(
buildCommands: buildCommands,
appDirectory: '/blah/blah',
environmentType: EnvironmentType.physical,
buildSettings: buildSettings,
),
xcResult: XCResult.test(
issues: <XCResultIssue>[
XCResultIssue.test(
message:
"File 'path/to/Flutter.framework/Headers/FlutterPlugin.h' has been modified since "
"the precompiled header 'path/to/Runner.build/Objects-normal/arm64/Runner-primary-Bridging-header.pch'"
' was built: size changed (was 18306, now 16886)',
subType: 'Error',
),
XCResultIssue.test(
message:
"File 'path/to/Flutter.framework/Headers/FlutterEngine.h' has been modified since "
"the precompiled header 'path/to/Runner.build/Objects-normal/arm64/Runner-primary-Bridging-header.pch'"
' was built: size changed (was 18306, now 16886)',
subType: 'Error',
),
],
),
);
final fs = MemoryFileSystem.test();
final project = FakeFlutterProject(fileSystem: fs, usesSwiftPackageManager: true);
project.ios.podfile.createSync(recursive: true);
await diagnoseXcodeBuildFailure(
buildResult,
logger: logger,
analytics: fakeAnalytics,
fileSystem: fs,
platform: FlutterDarwinPlatform.ios,
project: project,
);
expect(
logger.errorText,
contains(
'A precompiled file has been changed since last built. Please run "flutter clean" to '
'clear the cache.',
),
);
});
});
group('Upgrades project.pbxproj for old asset usage', () {