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lib: Add auxiliary functions to deal with flags

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Mikael 2024-08-24 13:10:45 +02:00
parent 5c9c332019
commit 2adf0bdd4f
Signed by: mikael
SSH key fingerprint: SHA256:21QyD2Meiot7jOUVitIR5YkGB/XuXdCvLW1hE6dsri0
1 changed files with 24 additions and 0 deletions
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lib/flags.nix Normal file
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{ nixpkgs, ... }:
let
inherit (builtins) any filter isList isString stringLength;
inherit (nixpkgs.lib.strings) addContextFrom;
split = strOrList:
if isList strOrList then strOrList
else builtins.split "[[:space:]]+" strOrList
|> filter (flag: isString flag && stringLength flag > 0)
|> map (flag: addContextFrom strOrList flag);
remerge = strOrList: list:
if isList strOrList then list
else toString list;
in {
remove = rem: strOrList: split strOrList
|> filter (flag: !any (elem: flag == elem) rem)
|> remerge strOrList;
subst = sub: strOrList: split strOrList
|> map (flag: sub.${flag} or flag)
|> remerge strOrList;
}