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Eelco Dolstra 0a84137c45 * checkVarDefs: don't check in closed terms, which don't have 
undefined variables by definition.  This matters for the
  implementation of "with", which does a call to checkVarDefs to see
  if the body of the with has no undefined variables.  (It can't be
  checked at parse time because you don't know which variables are in
  the "with" attribute set.)  If we check closed terms, then we check
  not just the with body but also the substituted terms, which are
  typically very large.  This is the cause of the poor nix-env
  performance on Nixpkgs lately.  It didn't happen earlier because
  "with" wasn't used very often in the past.

  This fix improves nix-env performance roughly 60x on current Nixpkgs.
  nix-env -qa is down from 29.3s to 0.5s on my laptop, and nix-env -qa
  --out-path is down from 229s to 3.39s.  Not bad for a 1-line fix :-)
2008-02-21 12:01:24 +00:00
blacklisting * This is a better location to keep the blacklist, since it can evolve 2005-03-24 14:07:02 +00:00
corepkgs * nix-env: allow ~/.nix-defexpr to be a directory. If it is, then the 2007-09-17 16:08:24 +00:00
doc * nix-store --dump-db / --load-db to dump/load the Nix DB. 2008-01-29 18:17:36 +00:00
externals * Use the new patched version of the aterm library. 2007-08-07 23:40:39 +00:00
make * `dependencyClosure' now allows a search path, e.g., 2005-08-14 14:00:39 +00:00
misc small udpate 2007-12-12 02:12:58 +00:00
scripts * Don't use "store expression", it's obsolete. 2007-12-30 23:35:45 +00:00
src * checkVarDefs: don't check in closed terms, which don't have 2008-02-21 12:01:24 +00:00
tests * Doh. 2008-02-05 13:35:49 +00:00
aterm-gc.supp * New suppressions. 2006-03-01 15:40:01 +00:00
AUTHORS * Put something in here. 2004-11-07 20:30:02 +00:00
bootstrap.sh * Build dynamic libraries. 2005-07-22 14:52:45 +00:00
ChangeLog * Autoconf / Automake configuration and building. 2003-04-04 16:14:56 +00:00
configure.ac * Bumped the version number to 0.12. 2007-12-31 17:53:59 +00:00
COPYING * Change this to LGPL to keep the government happy. 2006-04-25 16:41:06 +00:00
INSTALL * Autoconf / Automake configuration and building. 2003-04-04 16:14:56 +00:00
Makefile.am * nix-pull: using nix-prefetch-url (so that we get caching for free), 2007-08-09 23:52:53 +00:00
nix.conf.example 2007-10-29 22:16:36 +00:00
nix.spec.in * Fix URL/description. 2007-03-21 12:39:55 +00:00
README * Add SHA-256. 2005-01-14 12:03:04 +00:00
substitute.mk * Give unpacked channels more sensible names than 0, 1, ... They now 2007-05-01 23:16:38 +00:00

README 

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/)