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[SR-11025] Cyclic Dependencies Crash SwiftPM #4690

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CodaFi opened this issue Jun 26, 2019 · 1 comment
Open

[SR-11025] Cyclic Dependencies Crash SwiftPM #4690

CodaFi opened this issue Jun 26, 2019 · 1 comment
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@CodaFi
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CodaFi commented Jun 26, 2019

Previous ID SR-11025
Radar rdar://problem/52209227
Original Reporter @CodaFi
Type Bug
Environment

Apple Swift version 5.1 (swiftlang-1100.0.43.3 clang-1100.0.26.3)
Target: x86_64-apple-darwin19.0.0

Additional Detail from JIRA
Votes 0
Component/s Package Manager
Labels Bug
Assignee None
Priority Medium

md5: 55f1cdcb5869f5ce9a6f9e45c7c260da

Issue Description:

When the dependency resolver interacts with cyclic dependencies, it crashes SwiftPM. I've created two repositories

https://github.com/CodaFi/Swift-Package-Cycle-One
https://github.com/CodaFi/Swift-Package-Cycle-Two

Each is trivial: A single package file that contains an executable tool with an empty main.swift. The fun of it is that they declare each other as package dependencies, and declare their parallel executable as a target dependency.
@ankitspd
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🙁

At least, pubgrub is detecting it:

swift build --enable-pubgrub-resolver                                                                                                                                           
Updating https://github.com/CodaFi/Swift-Package-Cycle-Two.git
Completed resolution in 0.70s
Cloning https://github.com/CodaFi/Swift-Package-Cycle-Two.git
Resolving https://github.com/CodaFi/Swift-Package-Cycle-Two.git at 0.0.1
error: cyclic dependency declaration found: Swift-Package-Cycle-One -> Swift-Package-Cycle-Two -> Swift-Package-Cycle-One

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
@shahmishal shahmishal transferred this issue from apple/swift May 4, 2022
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@tomerd @CodaFi @ankitspd