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lib.strings: Add normalizePath

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dedupes extranous /'s in filepaths

Co-authored-by: Daniel Olsen <daniel.olsen99@gmail.com>
This commit is contained in:
ajs124 2022-06-12 14:09:42 +02:00 committed by Daniel Olsen
parent 4c420ee485
commit 4284ac9dfb
1 changed files with 10 additions and 0 deletions
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10
lib/strings.nix
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@ -185,6 +185,16 @@ rec {
*/
makeBinPath = makeSearchPathOutput "bin" "bin";
/* Normalize path, removing extranous /s
Type: normalizePath :: string -> string
Example:
normalizePath "/a//b///c/"
=> "/a/b/c/"
*/
normalizePath = s: (builtins.foldl' (x: y: if y == "/" && hasSuffix "/" x then x else x+y) "" (splitString "" s));
/* Depending on the boolean `cond', return either the given string
or the empty string. Useful to concatenate against a bigger string.