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author | Valentin Gagarin <valentin.gagarin@tweag.io> | 2023-11-13 20:59:15 +0100 |
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committer | fricklerhandwerk <valentin@fricklerhandwerk.de> | 2023-11-13 20:59:33 +0100 |
commit | 0530d6bd0498e6f554cc9070a163ac9aec5819c8 (patch) | |
tree | 6f837c4557d651efcf9b74a9d030996c14f705bb /pkgs/build-support | |
parent | 2bbf67d3c76927b5c3148f32c0e93c14e5dbc2d9 (diff) | |
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doc: add explanatory code comment
Diffstat (limited to 'pkgs/build-support')
-rw-r--r-- | pkgs/build-support/mkshell/default.nix | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/pkgs/build-support/mkshell/default.nix b/pkgs/build-support/mkshell/default.nix index 3517e949f67a..5369301ea105 100644 --- a/pkgs/build-support/mkshell/default.nix +++ b/pkgs/build-support/mkshell/default.nix @@ -16,6 +16,10 @@ let mergeInputs = name: (attrs.${name} or [ ]) ++ + # 1. get all `{build,nativeBuild,...}Inputs` from the elements of `inputsFrom` + # 2. since that is a list of lists, `flatten` that into a regular list + # 3. filter out of the result everything that's in `inputsFrom` itself + # this leaves actual dependencies of the derivations in `inputsFrom`, but never the derivations themselves (lib.subtractLists inputsFrom (lib.flatten (lib.catAttrs name inputsFrom))); rest = builtins.removeAttrs attrs [ |