On Jul 6, 2017, at 1:48 PM, Youming Lin via swift-corelibs-dev <swift-corelibs-dev@swift.org> wrote:
Thanks for pointing me to the package. Turns out it was intentional:
Latest ubuntu 16.04 does not have the 'tzdata' package installed in the base image · Issue #2863 · docker-library/official-images · GitHub
A caveat to Swift developers using official Docker Ubuntu images in the future.
Youming Lin
IBM Cloud, Swift@IBM, Kitura developer
Austin, TX
GitHub: @youming-lin
<graycol.gif>Simon Evans ---07/06/2017 03:20:57 PM---Looks like timezone files are in the ‘tzdata’ package. Maybe it got uninstalled or was never install
From: Simon Evans <si@si.org>
To: Youming Lin <ylin@us.ibm.com>
Cc: Alex Blewitt <alblue@apple.com>, Ian Partridge <ian@poncho.org.uk>, swift-corelibs-dev <swift-corelibs-dev@swift.org>
Date: 07/06/2017 03:20 PM
Subject: Re: [swift-corelibs-dev] TimeZone database
Looks like timezone files are in the ‘tzdata’ package. Maybe it got uninstalled or was never installed as part of the base. An ‘apt-get install tzdata’ might fix it.
Simon
On 6 Jul 2017, at 20:20, Youming Lin via swift-corelibs-dev <swift-corelibs-dev@swift.org <mailto:swift-corelibs-dev@swift.org>> wrote:
That's odd. Maybe my ubuntu:16.04 image is outdated or something, but here are my outputs:
ylin@youming-mbpr:~/Swift/Kitura-Markdown$ docker run -it --rm ubuntu:16.04 find /usr -name zone.tab
ylin@youming-mbpr:~/Swift/Kitura-Markdown$ docker run -it --rm ubuntu:14.04 find /usr -name zone.tab
/usr/share/zoneinfo/zone.tab
The file is found in ubuntu:14.04 but not in ubuntu:16.04.
Here are my images:
ylin@youming-mbpr:~/Swift/Kitura-Markdown$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
ubuntu 16.04 7b9b13f7b9c0 4 weeks ago 118MB
ubuntu 14.04 132b7427a3b4 4 weeks ago 188MB
Thanks,
Youming Lin
IBM Cloud, Swift@IBM, Kitura developer
Austin, TX
GitHub: @youming-lin
<graycol.gif>Alex Blewitt ---07/06/2017 01:42:22 PM---It looks like it's /usr/share/zoneinfo on all Ubuntu versions: alblue.local[~]$ docker run -it --rm
From: Alex Blewitt <alblue@apple.com <mailto:alblue@apple.com>>
To: Tony Parker <anthony.parker@apple.com <mailto:anthony.parker@apple.com>>
Cc: Youming Lin <ylin@us.ibm.com <mailto:ylin@us.ibm.com>>, Ian Partridge <ian@poncho.org.uk <mailto:ian@poncho.org.uk>>, swift-corelibs-dev <swift-corelibs-dev@swift.org <mailto:swift-corelibs-dev@swift.org>>
Date: 07/06/2017 01:42 PM
Subject: Re: [swift-corelibs-dev] TimeZone database
Sent by: alblue@apple.com <mailto:alblue@apple.com>
It looks like it's /usr/share/zoneinfo on all Ubuntu versions:
alblue.local[~]$ docker run -it --rm ubuntu:14.04 find /usr -name zone.tab
/usr/share/zoneinfo/zone.tab
alblue.local[~]$ docker run -it --rm ubuntu:16.04 find /usr -name zone.tab
/usr/share/zoneinfo/zone.tab
alblue.local[~]$ docker run -it --rm ubuntu:16.10 find /usr -name zone.tab
/usr/share/zoneinfo/zone.tab
This is the same that's coming from CFTimeZone.c:
https://github.com/apple/swift-corelibs-foundation/blob/2611dcd0d9b91fecace537838294bd85f0220503/CoreFoundation/NumberDate.subproj/CFTimeZone.c#L36-L39
Is it possible that the MacOS header is being included and defining TZDIR before the CFTimeZone.c file is compiled?
Alex
On 6 Jul 2017, at 19:22, Tony Parker via swift-corelibs-dev <swift-corelibs-dev@swift.org <mailto:swift-corelibs-dev@swift.org>> wrote:
Is the path to zoneinfo different on the Ubuntu docker image?
- Tony
On Jul 6, 2017, at 9:36 AM, Youming Lin <ylin@us.ibm.com <mailto:ylin@us.ibm.com>> wrote:
We were seeing this on Travis too. Specifically, on a Travis matrix build using Swift 3.1.1 on a Ubuntu 16.04 docker image running inside a Travis 14.04 VM.
The issue was specific to the Ubuntu 16.04 docker image; when I tested in Ubuntu 16.04 OS as a guest VM, the issue went away.
Thanks,
Youming Lin
IBM Cloud, Swift@IBM, Kitura developer
Austin, TX
GitHub: @youming-lin
<graycol.gif>Tony Parker via swift-corelibs-dev ---07/06/2017 10:31:15 AM---Yes, we’re discussing this one internally too and trying to figure out what the right answer is. May
From: Tony Parker via swift-corelibs-dev <swift-corelibs-dev@swift.org <mailto:swift-corelibs-dev@swift.org>>
To: Ian Partridge <ian@poncho.org.uk <mailto:ian@poncho.org.uk>>
Cc: swift-corelibs-dev <swift-corelibs-dev@swift.org <mailto:swift-corelibs-dev@swift.org>>
Date: 07/06/2017 10:31 AM
Subject: Re: [swift-corelibs-dev] TimeZone database
Sent by: swift-corelibs-dev-bounces@swift.org <mailto:swift-corelibs-dev-bounces@swift.org>
Yes, we’re discussing this one internally too and trying to figure out what the right answer is. Maybe the best solution for now is to find a good mechanism to check the underlying version of the OS and split it out into a function as you suggest.
- Tony
On Jul 6, 2017, at 7:37 AM, Ian Partridge via swift-corelibs-dev <swift-corelibs-dev@swift.org <mailto:swift-corelibs-dev@swift.org>> wrote:
Good shout Simon, you are right. I'm on Sierra. Compare and contrast:
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/tzfile.h
#define TZDIR "/usr/share/zoneinfo"
/Applications/Xcode-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/tzfile.h
#define TZDIR "/var/db/timezone/zoneinfo"
so I guess if I installed the High Sierra beta it would work OK.
I hacked CF to force it to use /usr/share/zoneinfo and TestFoundation
is much happier, but that's not a solution.
On 6 July 2017 at 15:20, Simon Evans <si@si.org <mailto:si@si.org>> wrote:
Ian
I also saw this error, I think its because the TZDIR is different in the headers shipped with Xcode 9. Maybe the location of the timezone directory was moved between Sierra and High Sierra. What version of macOS are you testing on?
If it has indeed moved between 10.12 and 10.13 it may require a runtime version check to dynamically return TZDIR.
Simon
On 6 Jul 2017, at 15:09, Ian Partridge via swift-corelibs-dev <swift-corelibs-dev@swift.org <mailto:swift-corelibs-dev@swift.org>> wrote:
Hi,
I'm seeing quite a lot of tests failing when running the
TestFoundation target in Xcode. The failures are timezone related.
Most simply, the code
let timeZone = TimeZone(abbreviation: "GMT")
is returning nil.
Walking through the CF code which sets things up, it seems to be
trying to read the timezone database from
/var/db/timezone/zoneinfo/zone.tab which doesn't exist on my macOS
system.
/usr/share/zoneinfo/zone.tab is there and seems to be the right
location (?), but CF is picking up TZDIR from tzfile.h which says:
#define TZDIR "/var/db/timezone/zoneinfo"
Any thoughts? I feel like I'm missing something obvious and have gone
too far down the rabbit hole.
--
Ian Partridge
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Ian Partridge
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