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author | Alyssa Ross <hi@alyssa.is> | 2018-12-11 21:18:22 +0000 |
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committer | Alyssa Ross <hi@alyssa.is> | 2018-12-11 21:26:07 +0000 |
commit | 67b1265fb3d38ead5a57fee838405a2d997777c2 (patch) | |
tree | 0c127dd8432ca416db5c56f3460ec12e8cfaf746 /lib/attrsets.nix | |
parent | ac19d5e34f384c66b71aecb921433acc5447bc51 (diff) |
bundlerEnv: ensure dependencies always included
Suppose I have a Gemfile like this: source "https://rubygems.org" gem "actioncable" gem "websocket-driver", group: :test The gemset.nix generated by Bundix 2.4.1 will set ActionCable's groups to [ "default" ], and websocket-driver's to [ "test" ]. This means that the generated bundlerEnv wouldn't include websocket-driver unless the test group was included, even though it's required by the default group. This is arguably a bug in Bundix (websocket-driver's groups should probably be [ "default" "test" ] or just [ "default" ]), but there's no reason bundlerEnv should omit dependencies even given such an input -- it won't necessarily come from Bundix, and it would be good for bundlerEnv to do the right thing. To fix this, filterGemset is now a recursive function, that adds dependencies of gems in the group to the filtered gemset until it stabilises on the gems that match the required groups, and all of their recursive dependencies.
Diffstat (limited to 'lib/attrsets.nix')
-rw-r--r-- | lib/attrsets.nix | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/attrsets.nix b/lib/attrsets.nix index 2a1b866dbc5e1..d374d229f5975 100644 --- a/lib/attrsets.nix +++ b/lib/attrsets.nix @@ -94,6 +94,15 @@ rec { attrValues = builtins.attrValues or (attrs: attrVals (attrNames attrs) attrs); + /* Given a set of attribute names, return the set of the corresponding + attributes from the given set. + + Example: + getAttrs [ "a" "b" ] { a = 1; b = 2; c = 3; } + => { a = 1; b = 2; } + */ + getAttrs = names: attrs: genAttrs names (name: attrs.${name}); + /* Collect each attribute named `attr' from a list of attribute sets. Sets that don't contain the named attribute are ignored. |