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Fix backward compatibility with Nix < 1.6

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"with" used to be less lazy, so don't rely on that.  Also don't use
the "<" operator.
This commit is contained in:
Eelco Dolstra 2013-10-30 19:12:25 +01:00
parent f3cdf9b477
commit a61b800da5
2 changed files with 20 additions and 15 deletions
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10
lib/modules.nix
View file

@ -1,5 +1,9 @@
with import ./.. {};
with lib;
with import ./lists.nix;
with import ./trivial.nix;
with import ./attrsets.nix;
with import ./options.nix;
with import ./debug.nix;
with import ./types.nix;
rec {
@ -244,7 +248,7 @@ rec {
let
defaultPrio = 100;
getPrio = def: if def.value._type or "" == "override" then def.value.priority else defaultPrio;
min = x: y: if x < y then x else y;
min = x: y: if builtins.lessThan x y then x else y;
highestPrio = fold (def: prio: min (getPrio def) prio) 9999 defs;
strip = def: if def.value._type or "" == "override" then def // { value = def.value.content; } else def;
in concatMap (def: if getPrio def == highestPrio then [(strip def)] else []) defs;

25
lib/types.nix
View file

@ -1,13 +1,11 @@
# Definitions related to run-time type checking. Used in particular
# to type-check NixOS configurations.
let lib = import ./default.nix; in
with lib.lists;
with lib.attrsets;
with lib.options;
with lib.trivial;
with lib.modules;
with import ./lists.nix;
with import ./attrsets.nix;
with import ./options.nix;
with import ./trivial.nix;
with import ./strings.nix;
rec {
@ -51,7 +49,7 @@ rec {
bool = mkOptionType {
name = "boolean";
check = builtins.isBool;
merge = loc: fold (x: lib.or x.value) false;
merge = loc: fold (x: y: x.value || y) false;
};
int = mkOptionType {
@ -71,7 +69,7 @@ rec {
separatedString = sep: mkOptionType {
name = "string";
check = builtins.isString;
merge = loc: defs: lib.concatStringsSep sep (getValues defs);
merge = loc: defs: concatStringsSep sep (getValues defs);
};
lines = separatedString "\n";
@ -85,7 +83,7 @@ rec {
attrs = mkOptionType {
name = "attribute set";
check = isAttrs;
merge = loc: fold (def: lib.mergeAttrs def.value) {};
merge = loc: fold (def: mergeAttrs def.value) {};
};
# derivation is a reserved keyword.
@ -117,7 +115,7 @@ rec {
attrsOf = elemType: mkOptionType {
name = "attribute set of ${elemType.name}s";
check = x: isAttrs x && all elemType.check (lib.attrValues x);
check = x: isAttrs x && all elemType.check (attrValues x);
merge = loc: defs:
zipAttrsWith (name: elemType.merge (loc ++ [name]))
# Push down position info.
@ -179,7 +177,10 @@ rec {
};
submodule = opts:
let opts' = toList opts; in
let
opts' = toList opts;
inherit (import ./modules.nix) evalModules;
in
mkOptionType rec {
name = "submodule";
check = x: isAttrs x || builtins.isFunction x;