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<appendix><title>Bugs / To-Do</title>
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<itemizedlist>
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2005-04-08 16:00:38 +03:00
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<listitem><para>The man-pages generated from the DocBook documentation
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are ugly.</para></listitem>
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<listitem><para>Generations properly form a tree. E.g., if after
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switching to generation 39, we perform an installation action, a
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generation 43 is created which is a descendant of 39, not 42. So a
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rollback from 43 ought to go back to 39. This is not currently
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implemented; generations form a linear sequence.</para></listitem>
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<listitem><para><emphasis>Build management.</emphasis> In principle it
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is already possible to do build management using Nix (by writing
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builders that perform appropriate build steps), but the Nix expression
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language is not yet powerful enough to make this pleasant (?). The
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language should be extended with features from the <ulink
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url='http://www.cs.uu.nl/~eelco/maak/'>Maak build manager</ulink>.
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Another interesting idea is to write a <command>make</command>
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implementation that uses Nix as a back-end to support <ulink
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url='http://www.research.att.com/~bs/bs_faq.html#legacy'>legacy</ulink>
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build files.</para></listitem>
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<listitem><para>For security, <command>nix-push</command> manifests
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should be digitally signed, and <command>nix-pull</command> should
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verify the signatures. The actual NAR archives in the cache do not
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need to be signed, since the manifest contains cryptographic hashes of
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these files (and <filename>fetchurl.nix</filename> checks
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them).</para></listitem>
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2004-11-01 18:03:35 +02:00
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<listitem><para>It would be useful to have an option in
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<command>nix-env --delete-generations</command> to remove non-current
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generations older than a certain age.</para></listitem>
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2005-04-08 16:00:38 +03:00
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<listitem><para>There should be a flexible way to change the user
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environment builder. Currently, you have to replace
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<filename><replaceable>prefix</replaceable>/share/nix/corepkgs/buildenv/builder.pl</filename>,
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which is hard-coded into <command>nix-env</command>. Also, the
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default builder should be more powerful. For instance, there should
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be some way to specify priorities to resolve
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collisions.</para></listitem>
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</itemizedlist>
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</appendix>
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