Strange issue with 3.14.0 and copying files

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Strange issue with 3.14.0 and copying files

Ron Olson
Hi all-

As a way of introduction, I’m Ron, and I maintain Apple’s Swift
programming language package for Fedora. I’ve been tracking down a
build failure and I came across a weird issue using 3.14.0 that
doesn’t seem to be a problem on 3.12.1. If you copy a file to the same
location, it overwrites it with a zero byte file:

[rolson@testn temp]$ cmake --version
cmake version 3.14.0

CMake suite maintained and supported by Kitware (kitware.com/cmake).

[rolson@testn temp]$ echo "hello world" > foo.txt

[rolson@testn temp]$ ls -lah
total 8.0K
drwxrwxr-x. 2 rolson rolson   21 Mar 20 16:39 .
drwx------. 9 rolson rolson 4.0K Mar 20 16:22 ..
-rw-rw-r--. 1 rolson rolson   12 Mar 20 16:39 foo.txt

[rolson@testn temp]$ cmake -E copy foo.txt .

[rolson@testn temp]$ ls -lah
total 4.0K
drwxrwxr-x. 2 rolson rolson   21 Mar 20 16:39 .
drwx------. 9 rolson rolson 4.0K Mar 20 16:22 ..
-rw-rw-r--. 1 rolson rolson    0 Mar 20 16:39 foo.txt

I haven’t been able to find any documentation about whether this is
expected behavior or not; under 3.12.1 the result would be foo.txt would
remain untouched.

If it’s a bug, I’ll file a report, but wanted to make sure it is
before I do so.

Ron







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Re: Strange issue with 3.14.0 and copying files

CMake mailing list
Just as a follow-up for the general community, this is a bug and can
be tracked at:

https://gitlab.kitware.com/cmake/cmake/issues/19075

On Wed, Mar 20, 2019 at 2:46 PM Ron Olson <[hidden email]> wrote:

>
> Hi all-
>
> As a way of introduction, I’m Ron, and I maintain Apple’s Swift
> programming language package for Fedora. I’ve been tracking down a
> build failure and I came across a weird issue using 3.14.0 that
> doesn’t seem to be a problem on 3.12.1. If you copy a file to the same
> location, it overwrites it with a zero byte file:
>
> [rolson@testn temp]$ cmake --version
> cmake version 3.14.0
>
> CMake suite maintained and supported by Kitware (kitware.com/cmake).
>
> [rolson@testn temp]$ echo "hello world" > foo.txt
>
> [rolson@testn temp]$ ls -lah
> total 8.0K
> drwxrwxr-x. 2 rolson rolson   21 Mar 20 16:39 .
> drwx------. 9 rolson rolson 4.0K Mar 20 16:22 ..
> -rw-rw-r--. 1 rolson rolson   12 Mar 20 16:39 foo.txt
>
> [rolson@testn temp]$ cmake -E copy foo.txt .
>
> [rolson@testn temp]$ ls -lah
> total 4.0K
> drwxrwxr-x. 2 rolson rolson   21 Mar 20 16:39 .
> drwx------. 9 rolson rolson 4.0K Mar 20 16:22 ..
> -rw-rw-r--. 1 rolson rolson    0 Mar 20 16:39 foo.txt
>
> I haven’t been able to find any documentation about whether this is
> expected behavior or not; under 3.12.1 the result would be foo.txt would
> remain untouched.
>
> If it’s a bug, I’ll file a report, but wanted to make sure it is
> before I do so.
>
> Ron
>
>
>
>
>
>
>
> --
>
> Powered by www.kitware.com
>
> Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ
>
> Kitware offers various services to support the CMake community. For more information on each offering, please visit:
>
> CMake Support: http://cmake.org/cmake/help/support.html
> CMake Consulting: http://cmake.org/cmake/help/consulting.html
> CMake Training Courses: http://cmake.org/cmake/help/training.html
>
> Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html
>
> Follow this link to subscribe/unsubscribe:
> https://cmake.org/mailman/listinfo/cmake
--

Powered by www.kitware.com

Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ

Kitware offers various services to support the CMake community. For more information on each offering, please visit:

CMake Support: http://cmake.org/cmake/help/support.html
CMake Consulting: http://cmake.org/cmake/help/consulting.html
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Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html

Follow this link to subscribe/unsubscribe:
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