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Eelco Dolstra a6bb468acf
mkIf: Check whether the condition is a Boolean 
This gives a nicer error message than (say)

while evaluating the option `fileSystems':
while evaluating the attribute ‘isDefined’ at /nix/store/r8z4vvl2qzg31zm4ra6awlx5b22k7gf9-nixos-16.09.tar.gz/lib/modules.nix:323:5:
while evaluating ‘filterOverrides’ at /nix/store/r8z4vvl2qzg31zm4ra6awlx5b22k7gf9-nixos-16.09.tar.gz/lib/modules.nix:395:21, called from /nix/store/r8z4vvl2qzg31zm4ra6awlx5b22k7gf9-nixos-16.09.tar.gz/lib/modules.nix:307:18:
while evaluating ‘concatMap’ at /nix/store/r8z4vvl2qzg31zm4ra6awlx5b22k7gf9-nixos-16.09.tar.gz/lib/lists.nix:79:18, called from /nix/store/r8z4vvl2qzg31zm4ra6awlx5b22k7gf9-nixos-16.09.tar.gz/lib/modules.nix:401:8:
while evaluating ‘concatMap’ at /nix/store/r8z4vvl2qzg31zm4ra6awlx5b22k7gf9-nixos-16.09.tar.gz/lib/lists.nix:79:18, called from /nix/store/r8z4vvl2qzg31zm4ra6awlx5b22k7gf9-nixos-16.09.tar.gz/lib/modules.nix:302:17:
while evaluating anonymous function at /nix/store/r8z4vvl2qzg31zm4ra6awlx5b22k7gf9-nixos-16.09.tar.gz/lib/modules.nix:302:28, called from undefined position:
while evaluating ‘dischargeProperties’ at /nix/store/r8z4vvl2qzg31zm4ra6awlx5b22k7gf9-nixos-16.09.tar.gz/lib/modules.nix:365:25, called from /nix/store/r8z4vvl2qzg31zm4ra6awlx5b22k7gf9-nixos-16.09.tar.gz/lib/modules.nix:303:62:
value is a list while a Boolean was expected
 		2016-11-21 14:51:57 +01:00
..
tests Replace `./../*` with `../*` in Nix expressions (#16414) 2016-06-22 10:39:50 +02:00
attrsets.nix toDerivation: Provide "out" and "outputName" attributes 2016-09-19 20:02:07 +02:00
composable-derivation.nix treewide: Make explicit that 'dev' output of curl is used 2016-05-19 10:00:29 +02:00
customisation.nix mkDerivation: add overrideAttrs function 2016-10-02 11:08:34 -04:00
debug.nix debug.nix: deprecate strict 2016-06-26 02:05:45 +02:00
default.nix lib: add ini configuration generator 2016-11-17 19:46:41 +01:00
deprecated.nix Update deprecated.nix 2015-11-15 03:41:39 +08:00
fetchers.nix lib/fetchers.nix: factor out impure proxy vars (#18702) 2016-09-17 21:50:01 +02:00
generators.nix lib/generators: add manual documentation 2016-11-17 23:19:28 +01:00
licenses.nix camingo-code: init at 1.0 2016-10-06 17:47:50 -07:00
lists.nix Use builtins.partition if available 2016-08-29 17:50:06 +02:00
maintainers.nix asn1c: init at 0.9.27 (#20577) 2016-11-20 17:45:58 +00:00
meta.nix Make appendToName do the right thing 2014-03-10 15:01:56 +01:00
minver.nix Expose minimum required Nix version. 2015-11-26 23:11:11 +08:00
modules.nix mkIf: Check whether the condition is a Boolean 2016-11-21 14:51:57 +01:00
options.nix module system: extensible option types 2016-11-06 00:05:58 +01:00
platforms.nix lib.platforms: alphabetize 2016-02-26 22:15:40 +00:00
sandbox.nix cherry-pick lib.sandbox into master 2015-11-19 11:33:21 -08:00
sources.nix Expose guts of `cleanSource` 2016-11-17 22:21:18 -05:00
strings-with-deps.nix Replace references to all-packages.nix, by references to the top-level of nixpkgs repository. 2016-03-13 18:25:52 +00:00
strings.nix getVersion: first try drv.version before parsing drv.name 2016-08-13 17:17:36 +02:00
systems.nix lib: alphabetize things 2016-02-26 22:15:41 +00:00
tests.nix lib: add generator functions for toJSON & toYAML 2016-11-17 23:16:24 +01:00
trivial.nix Merge pull request #19496 from Ericson2314/overridePackages 2016-10-26 14:01:13 -04:00
types.nix either type: improve merge function 2016-11-08 20:46:34 +01:00