A modern, delicious implementation of the Nix package manager, focused on correctness, usability, and growth — and committed to doing right by its community
https://lix.systems
![]() * Make the `derivation' primitive much more lazy. The expression `derivation attrs' now evaluates to (essentially) attrs // { type = "derivation"; outPath = derivation! attrs; drvPath = derivation! attrs; } where `derivation!' is a primop that does the actual derivation instantiation (i.e., it does what `derivation' used to do). The advantage is that it allows commands such as `nix-env -qa' and `nix-env -i' to be much faster since they no longer need to instantiate all derivations, just the `name' attribute. (However, `nix-env' doesn't yet take advantage of this since it still always evaluates the `outPath' and `drvPath' attributes). Also, this allows derivations to cyclically reference each other, for example, webServer = derivation { ... hostName = "svn.cs.uu.nl"; services = [svnService]; }; svnService = derivation { ... hostName = webServer.hostName; }; Previously, this would yield a black hole (infinite recursion). |
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blacklisting | ||
corepkgs | ||
doc | ||
externals | ||
make | ||
misc | ||
scripts | ||
src | ||
tests | ||
AUTHORS | ||
bootstrap.sh | ||
ChangeLog | ||
configure.ac | ||
COPYING | ||
INSTALL | ||
Makefile.am | ||
NEWS | ||
nix.conf.example | ||
nix.spec.in | ||
README | ||
substitute.mk |
For installation and usage instructions, please read the manual, which can be found in `docs/manual/manual.html', and additionally at the Nix website at <http://www.cs.uu.nl/groups/ST/Trace/Nix>. Acknowledgments This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)