diff options
| -rwxr-xr-x | bin/untill | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/bin/untill b/bin/untill deleted file mode 100755 index 9290cfe..0000000 --- a/bin/untill +++ /dev/null @@ -1,94 +0,0 @@ -#!/bin/sh -set -eu - -usage() { - cat <<-'EOF' - Usage: - until [-m MAX] [-n SECONDS] COMMAND... - until -h - EOF -} - -help() { - cat <<-'EOF' - - - Options: - -n SECONDS the amount of seconds to sleep between - attempts (default: 5) - -m MAX the maximum number of attempts (default: unlimited) - -h, --help show this message - - COMMAND the shell command to be executed - - - Runs COMMAND until it eventually succeeds, trying atmost MAX - times. Sleep SECONDS between attempts. - - - Examples: - - Try flaky build until it succeeds: - - $ until guix home build home.scm - - - Try atmost 10 timex to build until a new version is successfull, - waiting 30 seconds between attempts: - - $ until -m 10 -n 30 -- x git pull AND make - EOF -} - - -for flag in "$@"; do - case "$flag" in - (--) - break - ;; - (--help) - usage - help - exit - ;; - (*) - ;; - esac -done - -_SECONDS=5 -while getopts 'm:n:h' flag; do - case "$flag" in - (m) - MAX="$OPTARG" - ;; - (n) - _SECONDS="$OPTARG" - ;; - (h) - usage - help - exit - ;; - (*) - usage >&2 - exit 2 - ;; - esac -done -shift $((OPTIND - 1)) - - -ATTEMPT=1 -while true; do - printf 'Attempt %s.\n' "$ATTEMPT" >&2 - ATTEMPT=$((ATTEMPT + 1)) - if "$@"; then - break - fi - if [ -n "${MAX:-}" ] && [ "$ATTEMPT" -gt "$MAX" ]; then - printf 'Maximum number of attempts reached: %s.\n' "$MAX" >&2 - exit 1 - fi - sleep "$_SECONDS" -done |