Make apt-cache depends only recurse over preferred alternative












2















This is a followup question to my former question apt-rdepends does not show multiarch information.



With that problem solved, I've now encountered the issue that apt-cache will recurse over all alternatives for a dependency:



$ apt-cache depends --recurse --no-recommends --no-suggests --no-breaks --no-suggests --no-replaces --no-conflicts --no-pre-depends nano 

nano

  Depends: libc6

  Depends: libncursesw5

  Depends: libtinfo5

 |Depends: dpkg

    dpkg:i386

  Depends: install-info

    install-info:i386

libc6

  Depends: libgcc1

libncursesw5

  Depends: libtinfo5

  Depends: libc6

  Recommends: libgpm2

libtinfo5

  Depends: libc6

dpkg

dpkg:i386

install-info

  Depends: libc6

install-info:i386

  Depends: libc6:i386

libgcc1

  Depends: gcc-4.9-base

  Depends: libc6

libgpm2

  Depends: libc6

libc6:i386

  Depends: libgcc1:i386

gcc-4.9-base

libgcc1:i386

  Depends: gcc-4.9-base:i386

  Depends: libc6:i386

gcc-4.9-base:i386


This currently blows up my package list by about 300%.



Any suggestions on how to force it to use only the preferred alternatives (in the example: not the i386 packages)?






apt dependencies







share|improve this question



























    2















    This is a followup question to my former question apt-rdepends does not show multiarch information.



    With that problem solved, I've now encountered the issue that apt-cache will recurse over all alternatives for a dependency:



    $ apt-cache depends --recurse --no-recommends --no-suggests --no-breaks --no-suggests --no-replaces --no-conflicts --no-pre-depends nano 
    
nano
    
  Depends: libc6
    
  Depends: libncursesw5
    
  Depends: libtinfo5
    
 |Depends: dpkg
    
    dpkg:i386
    
  Depends: install-info
    
    install-info:i386
    
libc6
    
  Depends: libgcc1
    
libncursesw5
    
  Depends: libtinfo5
    
  Depends: libc6
    
  Recommends: libgpm2
    
libtinfo5
    
  Depends: libc6
    
dpkg
    
dpkg:i386
    
install-info
    
  Depends: libc6
    
install-info:i386
    
  Depends: libc6:i386
    
libgcc1
    
  Depends: gcc-4.9-base
    
  Depends: libc6
    
libgpm2
    
  Depends: libc6
    
libc6:i386
    
  Depends: libgcc1:i386
    
gcc-4.9-base
    
libgcc1:i386
    
  Depends: gcc-4.9-base:i386
    
  Depends: libc6:i386
    
gcc-4.9-base:i386


    This currently blows up my package list by about 300%.



    Any suggestions on how to force it to use only the preferred alternatives (in the example: not the i386 packages)?






    apt dependencies







    share|improve this question

























      2












      2








      2


      0






      This is a followup question to my former question apt-rdepends does not show multiarch information.



      With that problem solved, I've now encountered the issue that apt-cache will recurse over all alternatives for a dependency:



      $ apt-cache depends --recurse --no-recommends --no-suggests --no-breaks --no-suggests --no-replaces --no-conflicts --no-pre-depends nano 
      
nano
      
  Depends: libc6
      
  Depends: libncursesw5
      
  Depends: libtinfo5
      
 |Depends: dpkg
      
    dpkg:i386
      
  Depends: install-info
      
    install-info:i386
      
libc6
      
  Depends: libgcc1
      
libncursesw5
      
  Depends: libtinfo5
      
  Depends: libc6
      
  Recommends: libgpm2
      
libtinfo5
      
  Depends: libc6
      
dpkg
      
dpkg:i386
      
install-info
      
  Depends: libc6
      
install-info:i386
      
  Depends: libc6:i386
      
libgcc1
      
  Depends: gcc-4.9-base
      
  Depends: libc6
      
libgpm2
      
  Depends: libc6
      
libc6:i386
      
  Depends: libgcc1:i386
      
gcc-4.9-base
      
libgcc1:i386
      
  Depends: gcc-4.9-base:i386
      
  Depends: libc6:i386
      
gcc-4.9-base:i386


      This currently blows up my package list by about 300%.



      Any suggestions on how to force it to use only the preferred alternatives (in the example: not the i386 packages)?






      apt dependencies







      share|improve this question














      This is a followup question to my former question apt-rdepends does not show multiarch information.



      With that problem solved, I've now encountered the issue that apt-cache will recurse over all alternatives for a dependency:



      $ apt-cache depends --recurse --no-recommends --no-suggests --no-breaks --no-suggests --no-replaces --no-conflicts --no-pre-depends nano 
      
nano
      
  Depends: libc6
      
  Depends: libncursesw5
      
  Depends: libtinfo5
      
 |Depends: dpkg
      
    dpkg:i386
      
  Depends: install-info
      
    install-info:i386
      
libc6
      
  Depends: libgcc1
      
libncursesw5
      
  Depends: libtinfo5
      
  Depends: libc6
      
  Recommends: libgpm2
      
libtinfo5
      
  Depends: libc6
      
dpkg
      
dpkg:i386
      
install-info
      
  Depends: libc6
      
install-info:i386
      
  Depends: libc6:i386
      
libgcc1
      
  Depends: gcc-4.9-base
      
  Depends: libc6
      
libgpm2
      
  Depends: libc6
      
libc6:i386
      
  Depends: libgcc1:i386
      
gcc-4.9-base
      
libgcc1:i386
      
  Depends: gcc-4.9-base:i386
      
  Depends: libc6:i386
      
gcc-4.9-base:i386


      This currently blows up my package list by about 300%.



      Any suggestions on how to force it to use only the preferred alternatives (in the example: not the i386 packages)?






      apt dependencies




      apt dependencies






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked May 29 '17 at 17:38









      HurzelchenHurzelchen

      1516




      1516






















          1 Answer
          1






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          1














          Had the same issue. I found that one can use



          -o APT::Cache::ShowOnlyFirstOr=true



          which solves a bit of the problem, however not completely - for example when you
          have multiarch and the same package is provided in both architectures (i.e not OR but actually two packages that can be used), then you get recursion on both.



          I guess I should warn you that this option does not seem to be documented
          anywhere. Also, I do not know if the prefered option is always first.



          (See how 'ShowOnlyFirstOr' is used in
          https://salsa.debian.org/apt-team/apt/blob/master/apt-private/private-depends.cc )






          share|improve this answer























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            1 Answer
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            active

            oldest

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            active

            oldest

            votes






            active

            oldest

            votes









            1














            Had the same issue. I found that one can use



            -o APT::Cache::ShowOnlyFirstOr=true



            which solves a bit of the problem, however not completely - for example when you
            have multiarch and the same package is provided in both architectures (i.e not OR but actually two packages that can be used), then you get recursion on both.



            I guess I should warn you that this option does not seem to be documented
            anywhere. Also, I do not know if the prefered option is always first.



            (See how 'ShowOnlyFirstOr' is used in
            https://salsa.debian.org/apt-team/apt/blob/master/apt-private/private-depends.cc )






            share|improve this answer




























              1














              Had the same issue. I found that one can use



              -o APT::Cache::ShowOnlyFirstOr=true



              which solves a bit of the problem, however not completely - for example when you
              have multiarch and the same package is provided in both architectures (i.e not OR but actually two packages that can be used), then you get recursion on both.



              I guess I should warn you that this option does not seem to be documented
              anywhere. Also, I do not know if the prefered option is always first.



              (See how 'ShowOnlyFirstOr' is used in
              https://salsa.debian.org/apt-team/apt/blob/master/apt-private/private-depends.cc )






              share|improve this answer


























                1












                1








                1







                Had the same issue. I found that one can use



                -o APT::Cache::ShowOnlyFirstOr=true



                which solves a bit of the problem, however not completely - for example when you
                have multiarch and the same package is provided in both architectures (i.e not OR but actually two packages that can be used), then you get recursion on both.



                I guess I should warn you that this option does not seem to be documented
                anywhere. Also, I do not know if the prefered option is always first.



                (See how 'ShowOnlyFirstOr' is used in
                https://salsa.debian.org/apt-team/apt/blob/master/apt-private/private-depends.cc )






                share|improve this answer













                Had the same issue. I found that one can use



                -o APT::Cache::ShowOnlyFirstOr=true



                which solves a bit of the problem, however not completely - for example when you
                have multiarch and the same package is provided in both architectures (i.e not OR but actually two packages that can be used), then you get recursion on both.



                I guess I should warn you that this option does not seem to be documented
                anywhere. Also, I do not know if the prefered option is always first.



                (See how 'ShowOnlyFirstOr' is used in
                https://salsa.debian.org/apt-team/apt/blob/master/apt-private/private-depends.cc )







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Feb 20 at 21:36









                OctetzOctetz

                111




                111






























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