logf: don't call jq's gsub with empty regex :)

2016-08-11 21:01:51 +02:00 · 2016-08-11 21:01:51 +02:00 · 524601b974
commit 524601b974
parent c31c4e48b0
1 changed files with 2 additions and 1 deletions
--- a/krebs/5pkgs/logf/default.nix
+++ b/krebs/5pkgs/logf/default.nix
@ -54,7 +54,8 @@ pkgs.writeDashBin "logf" ''

        # anaphoric gsub
        def agsub(re; f):
-          gsub("(?<it>\(re))"; .it | f);
+          # Don't try empty regex: https://github.com/stedolan/jq/issues/1206
+          when(re != ""; gsub("(?<it>\(re))"; .it | f));

        # :: [int] -> sgr
        def sgr: "\u001b[\(map(tostring) | join(";"))m";