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authortv <tv@krebsco.de>2016-06-06 17:17:07 +0200
committertv <tv@krebsco.de>2016-06-06 17:17:07 +0200
commitdda2887e2cf618a7c7744bee2eed806e3a38fe36 (patch)
tree19ad3210a2b8485ac22d26f75b2e2493d3f61596 /lass/5pkgs/untilport/default.nix
parentc1c645b545b960eb639fc6d41dfa35ee187ae164 (diff)
parent7e344c0627a266685ef1ad79f5193b4e7ba27408 (diff)
Merge remote-tracking branch 'cloudkrebs/master'
Diffstat (limited to 'lass/5pkgs/untilport/default.nix')
-rw-r--r--lass/5pkgs/untilport/default.nix18
1 files changed, 18 insertions, 0 deletions
diff --git a/lass/5pkgs/untilport/default.nix b/lass/5pkgs/untilport/default.nix
new file mode 100644
index 00000000..61bcc2b8
--- /dev/null
+++ b/lass/5pkgs/untilport/default.nix
@@ -0,0 +1,18 @@
+{ pkgs, ... }:
+
+pkgs.writeDashBin "untilport" ''
+ set -euf
+
+ usage() {
+ echo 'untiport $target $port'
+ echo 'Sleeps until the destinated port is reachable.'
+ echo 'ex: untilport google.de 80 && echo "google is now reachable"'
+ }
+
+
+ if [ $# -ne 2 ]; then
+ usage
+ else
+ until ${pkgs.netcat-openbsd}/bin/nc -z "$@"; do sleep 1; done
+ fi
+''