Symlink SwiftPM plugins in the same directory #168932

vashworth · May 15, 2025

This PR symlinks SwiftPM plugins in the same directory so that they're relative to each other and the FlutterGeneratedPluginSwiftPackage.

This allows plugins to depend on each other via relative paths.

For example,

Flutter/ephemeral/Packages/.packages/plugin_a --> symlink --> /local/path/to/plugin_a
Flutter/ephemeral/Packages/.packages/plugin_b --> symlink --> /path/to/.pub-cache/plugin_b

Then in plugin_b's Package.swift, you can do the following to add a dependency on plugin_a:

dependencies: [
  .package(name: "plugin_a", path: "../plugin_a"),
],

Addresses #166528 and incremental change toward #166489.

Pre-launch Checklist

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

If you need help, consider asking for advice on the #hackers-new channel on Discord.

packages/flutter_tools/lib/src/xcode_project.dart

bkonyi · May 30, 2025

packages/flutter_tools/test/general.shard/macos/cocoapod_utils_test.dart

-      .childDirectory('FlutterGeneratedPluginSwiftPackage')
-      .childFile('Package.swift');
+  Directory get flutterSwiftPackagesDirectory =>
+      hostAppRoot.childDirectory('Flutter').childDirectory('ephemeral').childDirectory('Packages');


Do we have constants for these strings anywhere?

I don't think so.

stuartmorgan-g

LGTM. I wish we didn't have to make the filesystem layout a public API rather than an implementation detail as has traditionally been the case, but with the way SwiftPM overrides works it seems like we don't have a better option.

…ter#168932)

Symlink SwiftPM plugins in the same directory

9b4d015

github-actions bot added tool Affects the "flutter" command-line tool. See also t: labels. a: desktop Running on desktop team-ios Owned by iOS platform team labels May 15, 2025

vashworth and others added 6 commits May 15, 2025 17:25

fix tests

d71368d

fix test

65647d4

fix test

2b9fe63

Merge branch 'master' into swift_pm_symlinks

addd536

add integration test

1315f2e

Merge remote-tracking branch 'upstream/master' into swift_pm_symlinks

629e53a

vashworth marked this pull request as ready for review May 20, 2025 18:03

vashworth requested a review from a team as a code owner May 20, 2025 18:03

vashworth requested a review from stuartmorgan-g May 20, 2025 18:03

vashworth requested a review from bkonyi May 28, 2025 14:39

bkonyi approved these changes May 30, 2025

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vashworth and others added 2 commits May 30, 2025 14:32

Merge branch 'master' into swift_pm_symlinks

a324945

fix capitalization

d128bd0

stuartmorgan-g approved these changes Jun 2, 2025

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vashworth added the autosubmit Merge PR when tree becomes green via auto submit App label Jun 2, 2025

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Merged via the queue into flutter:master with commit 46b03c3 Jun 2, 2025
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flutter-dashboard bot removed the autosubmit Merge PR when tree becomes green via auto submit App label Jun 2, 2025

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46b03c352 Symlink SwiftPM plugins in the same directory (flutter/flut…

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46b03c352 Symlink SwiftPM plugins in the same directory (flutter/flut…

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46b03c352 Symlink SwiftPM plugins in the same directory (flutter/flut…

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46b03c352 Symlink SwiftPM plugins in the same directory (flutter/flut…

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…ter#168932)

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46b03c352 Symlink SwiftPM plugins in the same directory (flutter/flut…

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46b03c352 Symlink SwiftPM plugins in the same directory (flutter/flut…

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…ter#168932)

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46b03c352 Symlink SwiftPM plugins in the same directory (flutter/flut…

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…ter#168932)

engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Jun 5, 2025

46b03c352 Symlink SwiftPM plugins in the same directory (flutter/flut…

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…ter#168932)

engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Jun 5, 2025

46b03c352 Symlink SwiftPM plugins in the same directory (flutter/flut…

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engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Jun 5, 2025

46b03c352 Symlink SwiftPM plugins in the same directory (flutter/flut…

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…ter#168932)

engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Jun 5, 2025

46b03c352 Symlink SwiftPM plugins in the same directory (flutter/flut…

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…ter#168932)

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46b03c352 Symlink SwiftPM plugins in the same directory (flutter/flut…

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