Swift 5 Ubuntu 16.04 Crash with dateComponents

Question

Here's my code:

import Foundation

if let utc = TimeZone(abbreviation: "UTC") {
    let calendar = Calendar.current
    print("\(calendar.description)")
    print("Before dateComponents")
    let componentsDate1 = calendar.dateComponents(in: utc, from: Date())
    print("\(componentsDate1)")
}
else {
    print("Could not create timezone")
}

I'm running on Ubuntu 16.04 under Docker. The result is:

gregorian (current)
Before dateComponents
Segmentation fault

It appears the dateComponents call is crashing.

My Docker container is based off https://github.com/apple/swift-docker/blob/0aafffef619fb3b1824c968cbbe2fba4ba41bd26/5.0/ubuntu/16.04/Dockerfile

Suggestions?

UPDATES 1) I just replicated this on a Ubuntu 16.04 system running under Virtual box with an install of the Swift 5.0.1 release for Ubuntu 16.04: https://swift.org/builds/swift-5.0.1-release/ubuntu1604/swift-5.0.1-RELEASE/swift-5.0.1-RELEASE-ubuntu16.04.tar.gz

FYI - this works fine in a Swift playground running in Xcode on macOS. So it seems to be an issue specific to Swift under Ubuntu or Linux. — rmaddy, Jun 12 '19 at 05:13
It looks like there is some bug with Calendar.datecomponents on Linux, https://bugs.swift.org/browse/SR-7011 — Joakim Danielson, Jun 12 '19 at 06:38
@JoakimDanielson That issue is marked as resolved on `16 Aug 2018 12:34 PM`. — Chris Prince, Jun 12 '19 at 14:03

score 0 · Answer 1 · answered Jun 13 '19 at 00:34

0

I was just informed this is indeed a known bug with a known current fix: https://forums.swift.org/t/possible-bug-in-datecomponents-method-running-on-ubuntu-16-04/25702

answered Jun 13 '19 at 00:34

Chris Prince

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Swift 5 Ubuntu 16.04 Crash with dateComponents

1 Answers1