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52 lines
1.9 KiB
XML
52 lines
1.9 KiB
XML
<appendix>
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<title>Bugs / To-Do</title>
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<itemizedlist>
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<listitem>
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<para>
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Nix should automatically remove Berkeley DB logfiles.
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</para>
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</listitem>
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<listitem>
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<para>
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Unify the concepts of successors and substitutes into a general notion
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of <emphasis>equivalent expressions</emphasis>. Expressions are
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equivalent if they have the same target paths with the same
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identifiers. However, even though they are functionally equivalent,
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they may differ stronly with respect to their <emphasis>performance
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characteristics</emphasis>. For example, realising a slice is more
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efficient that realising the derivation from which that slice was
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produced. On the other hand, distributing sources may be more
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efficient (storage- or bandwidth-wise) than distributing binaries. So
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we need to be able to attach weigths or priorities or performance
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annotations to expressions; Nix can then choose the most efficient
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expression dependent on the context.
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</para>
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</listitem>
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<listitem>
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<para>
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<emphasis>Build management.</emphasis> In principle it is already
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possible to do build management using Nix (by writing builders that
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perform appropriate build steps), but the Nix expression language is
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not yet powerful enough to make this pleasant (?). The language should
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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.
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</para>
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</listitem>
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</itemizedlist>
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</appendix>
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