Your message dated Wed, 12 Dec 2012 10:04:06 +0800 with message-id <CAN3veReO_Cg-mPWV=mrxq9awyjrgecthfqpof0iyamad9on...@mail.gmail.com> and subject line Re: [Aptitude-devel] Bug#695725: Bug#695725: why says Recommends when in fact Depends has caused the Debian Bug report #695725, regarding why says Recommends when in fact Depends to be marked as done.
This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the Bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what this message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact [email protected] immediately.) -- 695725: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=695725 Debian Bug Tracking System Contact [email protected] with problems
--- Begin Message ---Package: aptitude Version: 0.6.8.2-1 Severity: wishlist # aptitude why libxapian22 i python-xapian Depends libxapian22 (>= 1.2.12) # aptitude why python-xapian i aptitude Recommends apt-xapian-index <-- NOT THE TRUTH p apt-xapian-index Depends python-xapian (>= 1.0.2) # aptitude purge libxapian22 python-xapian The following packages will be REMOVED: libxapian22{p} python-xapian{p} 0 packages upgraded, 0 newly installed, 2 to remove and 8 not upgraded. Need to get 0 B of archives. After unpacking 6,530 kB will be freed. The following packages have unmet dependencies: libept1.4.12 : Depends: libxapian22 but it is not going to be installed. aptitude : Depends: libxapian22 but it is not going to be installed.
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--- Begin Message ---TL;DR: libxapian22 and apt-xapian-index are two distinct packages. The first does not depend on the later. Aptitude works fine without apt-xapian-index installed. On 12 December 2012 08:16, <[email protected]> wrote: >>>>>> "AB" == Axel Beckert <[email protected]> writes: > > AB> So the bug is about the fact that "aptitude why" just shows one > AB> possible path and not all of them? Or at least not the most > AB> obvious from your point of view? That command is documented to show the most relevant dependency chain according to some criteria. If multiple chains are equally relevant, an arbitrary one is chosen. Setting verbose will display all chains, sorted by relevance. The head of such a list is the most useful end. > > Well all I know is the bottom line is >>> aptitude : Depends: libxapian22 but it is not going to be installed. libxapian22 is not apt-xapian-index. By itself, the library does not generate any indices and is a rather lightweight package to have installed. Aptitude is linked against the library to support the /optional/ apt-xapian-index, should that also be installed. apt-xapian-index is the package that generates the space–time consuming indices (for the APT database). Aptitude works fine without it installed, hence: recommends. libxapian22 has no dependency on apt-xapian-index. > > So "bait and switch"! "sucker punch" "say one thing and then do another" etc. > etc. > > The user feels he fully researched the path with "why" only to find out > "ha ha, gotcha". In this case it is (sucker-punch self). The user's feeling is incorrect: “aptitude why libxapian22” does not constitute fully researching why the library package is installed, as it only shows a single chain of dependencies. See my earlier comment, or, preferably, the man page: > The command why finds /a/ dependency chain that installs the package > named on the command line “… a dependency chain”, a-as-in-singular. >> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=588089#76 > OK, but they really should fix that little thing so one can finally > uninstall that Xapian stuff if one does not want to use it... but I > suppose that would take a whole aptitude-no-xapian at this point. Those issues are fixed. Regards
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