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[Issue #4500] Fix resource bundle accessor issue when testing with the CLI #5921

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Merged
merged 3 commits into from
Nov 29, 2022
Merged

[Issue #4500] Fix resource bundle accessor issue when testing with the CLI #5921

merged 3 commits into from
Nov 29, 2022

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@ncooke3
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@ncooke3 ncooke3 commented Nov 22, 2022

Fix issue where resource bundle accessor code returns nil when testing a package with the package manager CLI.

Motivation:

Please see #4500 for the context regarding the issue. In short, when testing a package's access to the resource bundle, the resource bundle will be nil when being accessed in an Objective-C context. This is because there is a difference in logic between the resource_bundle_accessor.m used in an Objective-C context and the resource_accessor.swift used in a Swift context.

As seen below, the Swift implementation will try to access the main bundle but fall back to the bundle at the build path (line 834 in below snippet). The Objective-C implementation does not have this code path and therefore returns a nil bundle when the main bundle does not exist. This is the case when testing a package using the CLI.

resource_bundle_accessor.swift

https://github.com/apple/swift-package-manager/blob/87254d26fa4287e45b20c5eba8bd71386942a880/Sources/Build/BuildPlan.swift#L811-L841

resource_bundle_accessor.m

https://github.com/apple/swift-package-manager/blob/87254d26fa4287e45b20c5eba8bd71386942a880/Sources/Build/BuildPlan.swift#L502-L507

Reproducing the issue

The issue can be reproduced by running swift test on a package that expects a non-nil resource bundle in Objective-C tests. I have also created a minimum, reproducible example: https://github.com/ncooke3/Package4500.

This change enables package developers to successfully test packages using the package manager CLI.

Modifications:

Modified the resource_bundle_accessor.m implementation to fall back to the bundle in the build folder when the main bundle does not exist.

Result:

Accessing the module's resource bundle will work when using the package manager CLI.

Fixes #4500

@ncooke3
Fix resource bundle accessor issue for Clang sources
842d33f 
- I noticed an issue when trying to access a Clang package's resources
  when testing the target from the SwiftPM CLI. In short, the resource
  bundle is placed in the same place when building a Clang-only or
  Swift-only package, but the generated resource_bundle_accessor.m's logic
  tries to create an NSBundle for a path that DNE. The difference becomes
  clear when comparing the logic to the resource_bundle_accessor.swift
  that is generated from Swift-only packages with resources.
ncooke3
ncooke3 commented Nov 22, 2022
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Sources/Build/BuildPlan.swift
Comment on lines +506 to +512
NSBundle *preferredBundle = [NSBundle bundleWithURL:bundleURL];
if (preferredBundle == nil) {
return [NSBundle bundleWithPath:@"\(bundlePath.pathString)"];
}
return preferredBundle;
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@ncooke3 ncooke3 Nov 22, 2022

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This change looks to be picked up as a public API change. It is breaking the following test:
https://github.com/apple/swift-package-manager/blob/87254d26fa4287e45b20c5eba8bd71386942a880/Tests/CommandsTests/APIDiffTests.swift#L61

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@ncooke3 ncooke3 Nov 22, 2022 •
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This commit is also part of #5919, I pulled it out into this PR since it isn't directly related to mixed language support and was as being tracked by #4500.

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Hm, seems pretty odd that this would affect testInvokeAPIDiffDigester since the packaged being tested there doesn't appear to contain resources. Could you share the full test output?

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@ncooke3 ncooke3 Nov 29, 2022 •
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Yeah– I'm not sure what is going on locally. And it did not seem to affect CI (search for testInvokeAPIDiffDigester in the CI logs)

https://github.com/apple/swift-package-manager/blob/87254d26fa4287e45b20c5eba8bd71386942a880/Tests/CommandsTests/APIDiffTests.swift#L61-L74

I printed the error on line 70:

Here's what printed 
▿ CommandExecutionError
  ▿ result : <ProcessResult: exit: terminated(code: 1), output:
 
>
    ▿ arguments : 5 elements
      - 0 : "/Users/nickcooke/Library/Developer/Xcode/DerivedData/swift-package-manager-fnxfxyeqhuuelohbuxseapweetoa/Build/Products/Debug/swift-package"
      - 1 : "--package-path"
      - 2 : "/var/folders/hz/7v68p4h95sb2ypb614xp20jc00r7sc/T/Miscellaneous_APIDiff.WZVA19/Foo"
      - 3 : "diagnose-api-breaking-changes"
      - 4 : "1.2.3"
    ▿ environment : 38 elements
      ▿ 0 : 2 elements
        - key : "SHELL"
        - value : "/bin/zsh"
      ▿ 1 : 2 elements
        - key : "SWIFTUI_VIEW_DEBUG"
        - value : "287"
      ▿ 2 : 2 elements
        - key : "SECURITYSESSIONID"
        - value : "186a5"
      ▿ 3 : 2 elements
        - key : "LaunchInstanceID"
        - value : "78B6CBF1-5859-48F5-8434-ABD520D1A5F1"
      ▿ 4 : 2 elements
        - key : "CA_DEBUG_TRANSACTIONS"
        - value : "0"
      ▿ 5 : 2 elements
        - key : "DYLD_FRAMEWORK_PATH"
        - value : "/Users/nickcooke/Library/Developer/Xcode/DerivedData/swift-package-manager-fnxfxyeqhuuelohbuxseapweetoa/Build/Products/Debug:/Users/nickcooke/Library/Developer/Xcode/DerivedData/swift-package-manager-fnxfxyeqhuuelohbuxseapweetoa/Build/Products/Debug/PackageFrameworks"
      ▿ 6 : 2 elements
        - key : "XPC_SERVICE_NAME"
        - value : "application.com.apple.dt.Xcode.157115435.157699474"
      ▿ 7 : 2 elements
        - key : "__CF_USER_TEXT_ENCODING"
        - value : "0xC1F2C:0x0:0x0"
      ▿ 8 : 2 elements
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        - value : "/Users/nickcooke/Library/Developer/Xcode/DerivedData/swift-package-manager-fnxfxyeqhuuelohbuxseapweetoa/Build/Products/Debug"
      ▿ 9 : 2 elements
        - key : "SQLITE_EXEMPT_PATH_FROM_VNODE_GUARDS"
        - value : "/Users/nickcooke/Library/WebKit/Databases"
      ▿ 10 : 2 elements
        - key : "UsePerConfigurationBuildLocations"
        - value : "YES"
      ▿ 11 : 2 elements
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        - value : "/Applications/Xcode_13.3.1.app/Contents/Developer/../SharedFrameworks/"
      ▿ 12 : 2 elements
        - key : "__XPC_DYLD_LIBRARY_PATH"
        - value : "/Users/nickcooke/Library/Developer/Xcode/DerivedData/swift-package-manager-fnxfxyeqhuuelohbuxseapweetoa/Build/Products/Debug"
      ▿ 13 : 2 elements
        - key : "PATH"
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      ▿ 14 : 2 elements
        - key : "SWIFTPM_TESTS_PACKAGECACHE"
        - value : "1"
      ▿ 15 : 2 elements
        - key : "DYLD_FALLBACK_LIBRARY_PATH"
        - value : "/Applications/Xcode_13.3.1.app/Contents/Developer/Platforms/MacOSX.platform/Developer/usr/lib"
      ▿ 16 : 2 elements
        - key : "LOG4J_FORMAT_MSG_NO_LOOKUPS"
        - value : "true"
      ▿ 17 : 2 elements
        - key : "__XCODE_BUILT_PRODUCTS_DIR_PATHS"
        - value : "/Users/nickcooke/Library/Developer/Xcode/DerivedData/swift-package-manager-fnxfxyeqhuuelohbuxseapweetoa/Build/Products/Debug"
      ▿ 18 : 2 elements
        - key : "SWIFTPM_TESTS_MODULECACHE"
        - value : "/Users/nickcooke/Library/Developer/Xcode/DerivedData/swift-package-manager-fnxfxyeqhuuelohbuxseapweetoa/Build/Products/Debug"
      ▿ 19 : 2 elements
        - key : "LOGNAME"
        - value : "nickcooke"
      ▿ 20 : 2 elements
        - key : "SSH_AUTH_SOCK"
        - value : "/private/tmp/com.apple.launchd.OIddYYmAGx/Listeners"
      ▿ 21 : 2 elements
        - key : "CA_ASSERT_MAIN_THREAD_TRANSACTIONS"
        - value : "0"
      ▿ 22 : 2 elements
        - key : "MallocNanoZone"
        - value : "0"
      ▿ 23 : 2 elements
        - key : "XPC_FLAGS"
        - value : "0x0"
      ▿ 24 : 2 elements
        - key : "__CFBundleIdentifier"
        - value : "com.apple.dt.Xcode"
      ▿ 25 : 2 elements
        - key : "RUN_DESTINATION_DEVICE_PLATFORM_IDENTIFIER"
        - value : "com.apple.platform.macosx"
      ▿ 26 : 2 elements
        - key : "TMPDIR"
        - value : "/var/folders/hz/7v68p4h95sb2ypb614xp20jc00r7sc/T/"
      ▿ 27 : 2 elements
        - key : "COMMAND_MODE"
        - value : "unix2003"
      ▿ 28 : 2 elements
        - key : "USER"
        - value : "nickcooke"
      ▿ 29 : 2 elements
        - key : "SQLITE_ENABLE_THREAD_ASSERTIONS"
        - value : "1"
      ▿ 30 : 2 elements
        - key : "DYLD_FALLBACK_FRAMEWORK_PATH"
        - value : "/Applications/Xcode_13.3.1.app/Contents/SharedFrameworks:/Applications/Xcode_13.3.1.app/Contents/Developer/Platforms/MacOSX.platform/Developer/Library/Frameworks"
      ▿ 31 : 2 elements
        - key : "RUN_DESTINATION_DEVICE_NAME"
        - value : "My Mac"
      ▿ 32 : 2 elements
        - key : "TOOLCHAINS"
        - value : "/Applications/Xcode_13.3.1.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift"
      ▿ 33 : 2 elements
        - key : "OS_ACTIVITY_DT_MODE"
        - value : "YES"
      ▿ 34 : 2 elements
        - key : "PWD"
        - value : "/Users/nickcooke/Library/Developer/Xcode/DerivedData/swift-package-manager-fnxfxyeqhuuelohbuxseapweetoa/Build/Products/Debug"
      ▿ 35 : 2 elements
        - key : "RUN_DESTINATION_DEVICE_UDID"
        - value : "33DF4E41-7255-58F9-A7A5-0DECD3298492"
      ▿ 36 : 2 elements
        - key : "HOME"
        - value : "/Users/nickcooke"
      ▿ 37 : 2 elements
        - key : "__XPC_DYLD_FRAMEWORK_PATH"
        - value : "/Users/nickcooke/Library/Developer/Xcode/DerivedData/swift-package-manager-fnxfxyeqhuuelohbuxseapweetoa/Build/Products/Debug"
    ▿ exitStatus : ExitStatus
      ▿ terminated : 1 element
        - code : 1
    ▿ output : Result<Array<UInt8>, Error>
      - success : 0 elements
    ▿ stderrOutput : Result<Array<UInt8>, Error>
      ▿ success : 381 elements
        - 0 : 66
        - 1 : 117
        - 2 : 105
        - 3 : 108
        - 4 : 100
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        - 305 : 112
        - 306 : 108
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        - 308 : 116
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        - 324 : 114
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        - 365 : 114
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        - 373 : 97
        - 374 : 108
        - 375 : 69
        - 376 : 114
        - 377 : 114
        - 378 : 111
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        - 380 : 10
  - stdout : ""
  - stderr : "Building for debugging...\n2022-11-29 15:23:31.681290-0500 swift-package[57423:520482] [logging] misuse at line 174820 of [9ff244ce07]\n[1/2] Compiling Foo Foo.swift\n[2/2] Emitting module Foo\nBuild complete! (1.01s)\nBuilding for debugging...\n[1/2] Compiling Foo Foo.swift\n[2/2] Emitting module Foo\nBuild complete! (1.01s)\nerror: failed to validate baseline for Foo\nerror: fatalError\n"

Could be some local state causing the failure?

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I think this is a false flag, I dropped a breakpoint in the code I changed in this file and it never hit.

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ncooke3 commented Nov 22, 2022

@swift-ci please smoke test

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MaxDesiatov
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Would it be possible to add a test for this to verify that the fix is working and to prevent regressions? Thanks!

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ncooke3 commented Nov 22, 2022

Would it be possible to add a test for this to verify that the fix is working and to prevent regressions? Thanks!

Thanks for taking a look @MaxDesiatov. I've added that unit test and verified that it fails without the fix, and passes with the fix.

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MaxDesiatov commented Nov 22, 2022

@swift-ci please smoke test

neonichu
neonichu reviewed Nov 28, 2022
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Tests/CommandsTests/TestToolTests.swift Outdated

// TODO: This test should be moved into `ResourceTests.swift` in the
// `FunctionalTests` scheme when the `FunctionalTests` scheme is re-enabled.
func testResourceBundleInClangPackageWhenRunningSwiftTest() throws {
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I think we can move it as part of this PR, otherwise it can cause the same type of issue that brought us to disable FunctionalTests.

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Done in fadd22c

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ncooke3 commented Nov 28, 2022

@swift-ci please smoke test

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ncooke3 commented Nov 28, 2022

@MaxDesiatov, I'm not sure if the CI bot listens to me. Can you tell if CI is running and please trigger it if it's not?

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neonichu commented Nov 28, 2022

@swift-ci please smoke test

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MaxDesiatov commented Nov 28, 2022 •
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I'm not sure if the CI bot listens to me.

It does not, only committers can trigger CI builds.

@tomerd tomerd merged commit 1d23aab into swiftlang:main Nov 29, 2022
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tomerd commented Nov 29, 2022

thanks @ncooke3

@ncooke3 ncooke3 deleted the nc/issue-4500 branch November 30, 2022 15:51
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@MaxDesiatov MaxDesiatov MaxDesiatov left review comments

@neonichu neonichu neonichu approved these changes

@abertelrud abertelrud Awaiting requested review from abertelrud

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Successfully merging this pull request may close these issues.

[SR-13560] swiftpm: SWIFTPM_MODULE_BUNDLE returning nil

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