[CMake] CPack RPM: file XXX conflicts with file from package filesystem-yyy...

[Eric Noulard]

Le jeu. 22 nov. 2018 à 16:16, Mario Emmenlauer <mario at emmenlauer.de> a écri

>
> I'm trying to build an RPM with CPack, and everything seems to work,
> but the resulting package can not be installed. I get Transaction check
> error:
>   file / from install of <mypackage> conflicts with file from package
> filesystem-3.2-25.el7.x86_64
>   file /opt from install of <mypackage> conflicts with file from package
> filesystem-3.2-25.el7.x86_64
>   file /usr/bin from install of <mypackage> conflicts with file from
> package filesystem-3.2-25.el7.x86_64
>   file /usr/share from install of <mypackage> conflicts with file from
> package filesystem-3.2-25.el7.x86_64
>   file /usr from install of <mypackage> conflicts with file from package
> filesystem-3.2-25.el7.x86_64
>
> I've read in the CPackRPM source code about how to add excludes and
> CPackRPM says that my "Final list of path to OMIT in RPM" would be
>
> /etc;/etc/init.d;/usr;/usr/bin;/usr/include;/usr/lib;/usr/libx32;/usr/lib64;/usr/share;/usr/share/aclocal;/usr/share/doc;/opt;/usr/share/applications
>

You can read the doc too:
https://cmake.org/cmake/help/v3.13/cpack_gen/rpm.html#variable:CPACK_RPM_EXCLUDE_FROM_AUTO_FILELIST


I can see that the conflicting directories are removed from
> CPACK_RPM_INSTALL_FILES. But that does not satisfy rpm :-(
>
> Could someone shed some light? I believe that the problem may be
> my install command: I call install only once for the full tree
> of files that I'd like to package:
>   install(DIRECTORY "${INSTALL_TMP_ROOT}/" DESTINATION "/"
> USE_SOURCE_PERMISSIONS)
>

Yep this is looking for trouble.
How did you build the "${INSTALL_TMP_ROOT}" in the first place?

Can't you use relative path install DESTINATION ? For all files/target you
build?


> I have a wild guess that this install somehow includes the
> directories, and probably it would be better to just call install
> on the individual files?


CPack RPM tries its best to avoid shipping directories he does not need to
ship, but
RPM requires that any new (non shared) directory should be specified in the
spec file,
so CPackRPM tries to "discover that" automatically and make the package
relocatable.

Installing a whole directory to an absolute DESTINATION (even "/" in you
case) is probably
giving tough time to CPackRPM.


> I would prefer not to call install on the
> individual files because that overrides file permissions for every
> file, and I carefully prepared my package upfront to have the
> exact permissions for installation.
>

How did you "carefully prepared my package upfront" ?
And what do you mean by
"because that overrides file permissions for every file"

one more question, could you tell us which version of CPack/CMake you are
using?


-- 
Eric
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