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feat(wait-for-port): timeout flag #40

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Merged
robinanterior merged 1 commit into from
Aug 28, 2026
Merged

feat(wait-for-port): timeout flag #40

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8 changes: 1 addition & 7 deletions packages/wait-for-port.nix → packages/wait-for-port/package.nix
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Original file line number Diff line number Diff line change
Expand Up @@ -4,11 +4,5 @@ writeShellApplication {
# beware: the first result on nixos search, netcat-gnu, is outdated and
# broken.
runtimeInputs = [ netcat ];
text = ''
if [[ $# -eq 0 ]] ; then
nc
exit 1
fi
until nc -z localhost "$@"; do sleep 1; done
'';
text = builtins.readFile ./wait-for-port.sh;
}
25 changes: 25 additions & 0 deletions packages/wait-for-port/wait-for-port.sh
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Original file line number Diff line number Diff line change
@@ -0,0 +1,25 @@
#!/usr/bin/env bash

set -euo pipefail

while getopts "t:" opt; do
case "$opt" in
t)
DEADLINE="$((EPOCHSECONDS + OPTARG))"
shift
shift
;;
"?")
>&2 echo "Invalid option"
exit 1
;;
esac
done

until nc -z localhost "$@"; do
if [[ -n "${DEADLINE-}" && "$DEADLINE" -le "$EPOCHSECONDS" ]]; then
>&2 echo "Timeout"
exit 1
fi
sleep 1
done