[CMake] Finding package for 7-zip comprehension

[Michael Powell]

On Tue, Nov 21, 2017 at 10:54 AM, Michael Powell <mwpowellhtx at gmail.com> wrote:
> On Tue, Nov 21, 2017 at 10:49 AM, Michael Powell <mwpowellhtx at gmail.com> wrote:
>> On Tue, Nov 21, 2017 at 10:47 AM, CHEVRIER, Marc <marc.chevrier at sap.com> wrote:
>>> “cmake –E tar” supports 7-zip format. Use option –format=7zip (see https://cmake.org/cmake/help/v3.9/manual/cmake.1.html).
>>
>> Ah! This I did not know. Thanks for pointing that out!

Oh, duh. I get it. CMake has this built in.

> Well, the version of Tar I am working with does not seem to have this
> feature implemented? I could be wrong, unless it is undocumented.
>
> Based on the version (1.29?) adopted in the Git for Windows distribution.
>
> C:\Dev\Git\usr\bin\tar.exe --help | C:\Dev\Git\usr\bin\grep.exe zip
>   -j, --bzip2                filter the archive through bzip2
>       --lzip                 filter the archive through lzip
>   -z, --gzip, --gunzip, --ungzip   filter the archive through gzip
>
> G:\Source\Boost.Build\Prototype\repos\boost-1.65.1>C:\Dev\Git\usr\bin\tar.exe --
> help | C:\Dev\Git\usr\bin\grep.exe zip
>   -j, --bzip2                filter the archive through bzip2
>       --lzip                 filter the archive through lzip
>   -z, --gzip, --gunzip, --ungzip   filter the archive through gzip
>
> C:\Dev\Git\usr\bin\tar.exe --help | C:\Dev\Git\usr\bin\grep.exe format
>   -g, --listed-incremental=FILE   handle new GNU-format incremental backup
>   -G, --incremental          handle old GNU-format incremental backup
>                              set version of the sparse format to use (implies
>                              extract information about file permissions
>  Archive format selection:
>   -H, --format=FORMAT        create archive of the given format
>     gnu                      GNU tar 1.13.x format
>     oldgnu                   GNU format as per tar <= 1.12
>     pax                      POSIX 1003.1-2001 (pax) format
>     ustar                    POSIX 1003.1-1988 (ustar) format
>     v7                       old V7 tar format
>                              same as --format=v7
>       --posix                same as --format=posix
>  File name transformations:
>  Informative output:
>                              show file or archive names after transformation
> --format=gnu -f- -b20 --quoting-style=escape
>
>>> On 21/11/2017 16:43, "CMake on behalf of Konstantin Tokarev" <cmake-bounces at cmake.org on behalf of annulen at yandex.ru> wrote:
>>>
>>>
>>>
>>>     21.11.2017, 18:38, "Michael Powell" <mwpowellhtx at gmail.com>:
>>>     > Hello,
>>>     >
>>>     > Does anyone happen to know, is there 7-zip comprehension in CMake
>>>     > today? i.e., that something like this could be done:
>>>     >
>>>     > include (FindSevenZip.cmake)
>>>     >
>>>     > or:
>>>     >
>>>     > find_package (SevenZip)
>>>     >
>>>     > I've seen mention of it in places, but could not find it formally as
>>>     > part of CMake itself, it seems.
>>>     >
>>>     > I am running the latest stable v3.9, that I know of.
>>>
>>>     Not exactly 7-zip, but you can unpack tar.xz files via built-in cmake -E tar command
>>>
>>>     >
>>>     > Thanks!
>>>     >
>>>     > Cheers,
>>>     >
>>>     > Michael Powell
>>>     > --
>>>     >
>>>     > 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:
>>>     > http://public.kitware.com/mailman/listinfo/cmake
>>>
>>>     --
>>>     Regards,
>>>     Konstantin
>>>     --
>>>
>>>     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:
>>>     http://public.kitware.com/mailman/listinfo/cmake
>>>
>>>