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[SR-6548] SwiftPM's POSIX.chdir never works when binary is found via $PATH #4904

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swift-ci opened this issue Dec 6, 2017 · 2 comments
Open

[SR-6548] SwiftPM's POSIX.chdir never works when binary is found via $PATH #4904

swift-ci opened this issue Dec 6, 2017 · 2 comments
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bug good first issue Good for newcomers Edit

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@swift-ci
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swift-ci commented Dec 6, 2017

Previous ID SR-6548
Radar None
Original Reporter jaybuff (JIRA User)
Type Bug
Additional Detail from JIRA
Votes 0
Component/s Package Manager
Labels Bug, StarterBug
Assignee legendecas (JIRA)
Priority Medium

md5: 7f6b9fff863f8eada827047e65debf1f

Issue Description:

I'm using SwiftPM's Utility product and ran into an issue with chdir. To reproduce the program has to be found on the path:

swift package init --type executable

  1. add swiftpm dependency to Package.swift like this:
    .package(url: "https://github.com/apple/swift-package-manager.git", .exact("0.1.0"))

$ cat Sources/ChdirProg/main.swift
import POSIX
try chdir("/tmp")

swift build
export PATH=$PWD/.build/debug/:$PATH
ChdirProg
fatal error: Error raised at top level: realpath error: No such file or directory (2): ChdirProg: file /Library/Caches/com.apple.xbs/Sources/swiftlang/swiftlang-900.0.65.2/src/swift/stdlib/public/core/ErrorType.swift, line 187

This is because POSIX/chdir.swift calls realpath(CommandLine.arguments.first when the program name is resolved via $PATH.

I suspect this causes issues with --package-path, but am unsure how to cause this bug to manifest itself with swift build. Perhaps when swift build re-execs swift-build it always uses the full path?
@swift-ci
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Comment by Lucas Woo (JIRA)

Hi, I've sent a PR trying to fix this issue

@hartbit
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hartbit commented Jun 8, 2018

legendecas (JIRA User) Hey! I've assigned the issue to you to make sure nobody thinks its "free" 🙂

@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
@tomerd tomerd added good first issue Good for newcomers Edit and removed Package Manager labels May 14, 2022
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@tomerd @hartbit @swift-ci