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314e8e49ec
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11 Commits

Author SHA1 Message Date
Eelco Dolstra
314e8e49ec Remove deepOverride 
It's unused, and also a bad idea: because it recursively recomputes
every function argument and there is no sharing, you can get an
exponential (?) blowup in evaluation time. For example, evaluating
‘linuxPackages.kernel’ takes 0.09s and ~13 MiB, but evaluating
‘linuxPackages.kernel.deepOverride {}’ takes 3.6s and ~305 MiB.
 2015-07-28 21:42:25 +02:00
Eelco Dolstra
3096d03435 Revert "Refactor mkFlag / shouldUsePkg into the nixpkgs libraries" 
This reverts commit 25a148fa19.
 2015-06-04 14:54:48 +02:00
William A. Kennington III
25a148fa19 Refactor mkFlag / shouldUsePkg into the nixpkgs libraries 2015-05-22 13:26:55 -07:00
Jan Malakhovski
5990cce95f lib: cleanup a little bit, add traceIf 2015-03-26 12:43:42 +00:00
Eelco Dolstra
0461f35894 Rename scrubDrv -> hydraJob and make it more effective 
It now strictly evaluates all remaining attributes, preventing
unevaluated thunks that cannot be garbage-collected. It's also applied
to all jobs in Nixpkgs' release.nix.

This reduces hydra-eval-jobs' memory consumption on the 14.12
release-combined jobset from 5.1 GB to 2.0 GB.
 2015-03-20 19:46:18 +01:00
Shea Levy
8921a8f53b Revert "Revert "mkOverridable: Use functors to allow overridable functions"" 
Original commit was reverted due to using features from a newer nix than
hydra had, hydra has since been updated

This reverts commit 07e726c85c.
 2015-01-13 08:39:54 -05:00
Rob Vermaas
07e726c85c Revert "mkOverridable: Use functors to allow overridable functions" 
This reverts commit 4ee556cfe9.
 2015-01-13 13:53:11 +01:00
Shea Levy
4ee556cfe9 mkOverridable: Use functors to allow overridable functions 2015-01-09 13:26:34 -05:00
Luca Bruno
492dd14e78 Add overrideDerivation to makeOverridable. Closes #4017 2014-10-18 18:02:43 +02:00
Eelco Dolstra
97220c973f Replace hasAttr/getAttr calls with the ? and . operators 
For NixOS evaluation, this gives a ~21% reduction in the number of
values allocated and a ~4% speedup. It's also more readable.
 2014-10-05 01:11:06 +02:00
Eelco Dolstra
5fef92c4a0 Move pkgs/lib/ to lib/ 2013-10-10 13:28:21 +02:00