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

Eric Noulard eric.noulard at gmail.com
Tue Nov 27 09:05:08 EST 2018


Le mar. 27 nov. 2018 à 14:56, Mario Emmenlauer <mario at emmenlauer.de> a
écrit :

>
> Dear Eric,
>
> just to let you know, your suggestion of using a post-install-script
> for all system-wide links and files was indeed the solution to a working
> RPM package. Now my files are completely encapsulated in /opt/PKGNAME/
> and install works fine.
>

Thank you very much for the *positive* feedback, we don't always get those
:-)

This is nice to me and probably useful to others knowing it finally works.

Cheers,
Eric

Cheers and Thanks,
>
>    Mario
>
>
>
> On 23.11.18 15:37, Mario Emmenlauer wrote:
> >
> > Dear Eric,
> >
> > thanks a lot for this help! I think I have the pointers to move forward!
> > One more detail below:
> >
> > On 23.11.18 11:36, Eric Noulard wrote:
> >> Le ven. 23 nov. 2018 à 11:10, Mario Emmenlauer <mario at emmenlauer.de
> <mailto:mario at emmenlauer.de>> a écrit :
> >>     Dear Eric, thanks for the help! Below more:
> >>
> >>     On 22.11.18 18:20, Eric Noulard wrote:
> >>     > Le jeu. 22 nov. 2018 à 16:16, Mario Emmenlauer <
> mario at emmenlauer.de <mailto:mario at emmenlauer.de> <mailto:
> mario at emmenlauer.de
> >>     <mailto: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
> >>
> >>     Haha, done that! I've read everything I could find, including the
> >>     docs and the excellent but hard-to-find community wiki at
> >>     https://gitlab.kitware.com/cmake/community/wikis/home
> >>
> >>
> >> OK then you are up-to-doc then.
> >>
> >>     >     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'm not sure if I can use a relative path. I want to build a system
> package
> >>     that installs to /opt/<package>/ with symlinks in /usr/bin/ and
> desktop
> >>     files in /usr/share/applications/. Since files go into different
> paths below
> >>     system root (/opt, /usr, maybe /var) I assume I need to install
> into root?
> >>     Maybe I misunderstand?
> >>
> >>
> >> Not really. Usually you install in relative bin/ share/ man/ whatever
> other subdir you need.
> >> Then you define CPACK_PACKAGING_INSTALL_PREFIX (see
> https://cmake.org/cmake/help/v3.13/variable/CPACK_PACKAGING_INSTALL_PREFIX.html
> )
> >> to set up your "main" install prefix for your package. Every CPack
> generator has a default **packaging install prefix** (not to be confused
> with
> >> CMAKE_INSTALL_PREFIX).
> >> In your case:
> >> set(CPACK_PACKAGING_INSTALL_PREFIX "/opt")
> >> which should even be (AFAIR) the default value for RPM and DEB.
> >>
> >> Concerning the symlink in /usr/bin (or other places /usr/share etc...)
> this usually done using post-install script
> >>
> https://cmake.org/cmake/help/v3.13/cpack_gen/rpm.html#variable:CPACK_RPM_SPEC_MORE_DEFINE
> >>
> >> the script itself may call standard symlink creation like
> https://linux.die.net/man/8/update-alternatives
> >
> > Aha, now I see the recommended approach! Makes perfect sense! So I will
> > continue to bundle up everything, but try to avoid files outside my
> > man package directory (for me /opt/${PROJECT_NAME}). Then I will make
> > the system integration (to /usr/bin, /usr/share, etc) via symlinks
> > and update-alternatives in post-install scripts. This makes perfect
> > sense, I'm sorry I did not think of it myself!
> >
> > All the best,
> >
> >     Mario
> >
> >
> >
> >> Sometimes you *really* need absolute prefix like when you install in
> /etc/init...
> >> then for those (generally system) specific file you install them with
> absolute destination.
> >> CPackRPM is able to handle those as "config" file automatically.
> >>
> >>     >     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.
> >>
> >>     There is something I don't understand: I can see that CPackRPM
> removes
> >>     several things from CPACK_RPM_INSTALL_FILES, but later rpm complains
> >>     about several of the removed items nonetheless. For example
> /usr/bin.
> >>     Does that mean the filtering failed, or does the filter work but
> (somehow)
> >>     the directory still ends up being packaged?
> >>
> >>
> >> Evil usually hides in details.
> >>
> >> Difficult to say without having the actual code and package to look
> into it.
> >> Is your project public? If so could you provide us with the source?
> >>
> >> If not tries to setup a stripped down public project that exhibit the
> same issue.
> >>
> >>
> >>     >     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"
> >>
> >>     Currently I bundle my package in a temporary directory for three
> reasons:
> >>      - Its easier for me to grasp. I.e. I can nicely inspect the
> package and
> >>        see what will be bundled before the fact.
> >>
> >>
> >> make/ninja DESTDIR=/tmp/testinstall all
> >>
> >> may be used equally for that.
> >>
> >>
> >>      - In the temporary copy, I can override RPATH on binaries and
> libraries
> >>        without changing them in their actual install location.
> >>
> >>
> >> If you have a "clean" prefix and relative install path for all binaries
> then you can safely use $ORIGIN
> >> see:
> https://gitlab.kitware.com/cmake/community/wikis/doc/cmake/RPATH-handling
> >>
> >>
> >>
> >>      - I prefer file(COPY) over install(FILES) because the former can
> set
> >>        permissions with complex patterns. I appreciate that file(COPY)
> allows
> >>        me to set executable permissions on *.so and binaries with a
> single
> >>        invocation (in a loop over many directories).
> >>
> >>
> >> if you install(TARGET ..) any binaries or .so would have the
> appropriate permissions precisely because cmake
> >> knows what they are and does not consider them as "file" which is the
> case for install(FILES).
> >>
> >>
> >>     > one more question, could you tell us which version of CPack/CMake
> you are using?
> >>
> >>     I'm on the latest cmake 3.13 as of now, but I tested 3.12.4 as well.
> >>
> >>
> >> Then you have all bleeding edge feature with you.
> >>
> >> I'm not trying to tell you what to do with your install, I'm just
> trying what CPack expects.
> >>
> >> install(DIRECTORY ...) is a kind of trap-them-all for things that are
> not installed otherwise, this is usually used for things like
> >> generated documentation and not for "normally built artefact" like
> executable, libraries etc...
> >>
> >>
> >> --
> >> Eric
> >
>
>
>
> Viele Gruesse,
>
>     Mario Emmenlauer
>
>
> --
> BioDataAnalysis GmbH, Mario Emmenlauer      Tel. Buero: +49-89-74677203
> Balanstr. 43                   mailto: memmenlauer * biodataanalysis.de
> D-81669 München                          http://www.biodataanalysis.de/
>


-- 
Eric
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