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On Mon, 25 Apr 2005 14:52:18 +0200 |
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Paul de Vrieze <pauldv@g.o> wrote: |
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> Making the diagram vertical would probably be a big improvement. |
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Yep, that's very true. I've uploaded (same url) a new version |
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which adds 'rankdir=LR' to the graph, and I also think it's |
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much more readable this way (on "medium size" package sure, it's |
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still and will probably always be absolutly messy on big packages |
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like mozilla for instance). |
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Another change I've made is the addition of a "-r/--real-paths" |
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option which make the script resolve all symlinks while searching |
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for packages owning some depended-on files. The point is that if |
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you don't do that, then it won't be accurate in finding deps: a |
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program may be linked to "/usr/X11R6/lib/foo.so" whereas the file |
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was installed as "/usr/lib/foo.so" for instance (or the opposite - |
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I've found both on my system actually). |
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The following example shows the difference i think: |
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http://tdegreni.free.fr/gentoo/xdtv-symlinks.ps |
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http://tdegreni.free.fr/gentoo/xdtv-realpaths.ps |
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(the ebuild is not from portage, so i'm the one to blame for the |
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/usr/X11R6/lib linkings) |
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The drawback of that "real-paths" approach is that you then can't |
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distinguish a dep on Bash (/bin/bash) from one on any Bourne shell |
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(/bin/sh), and that's why i made it optional. Probably the best |
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would be to do both kinds of search at once and show the |
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difference in the graph, or something like that... |
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> one thing I miss however is a destinction between libraries |
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> linked into the application, and those that only are taken in by |
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> another library. The so files do make this distinction so it |
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> should be possible to extract it. |
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If i don't misunderstand what you mean, then that was exactly the |
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point of a patch i've submitted 2 days ago, and which is in the |
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current depreverse version. Shared libs that are listed as deps |
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should be only those which are marked NEEDED in the objects |
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headers, not those that are indirectly linked to. |
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-- |
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TGL. |
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-- |
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