66 lines
1.3 KiB
Bash
Executable file
66 lines
1.3 KiB
Bash
Executable file
#!/bin/sh
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# fail on errors
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set -e
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# if the error output matches this regex, auto retry
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# and dont prompt user.
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auto_retry_regex="write_to_session_record_port" # Guix does not know how to
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# gracefully reconnect TLS...
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# run dir
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run="${XDG_RUNTIME_DIR:-/tmp}/guix-retry/$$"
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mkdir -p "$run"
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# delete run dir on exit
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function cleanup {
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real="$(realpath "$run")"
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if [[ ! "$real" = "/" ]]; then
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rm -fr "$real"
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fi
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}
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trap cleanup EXIT
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# get error stream
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stderr="$run/stderr"
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mkfifo -m 600 "$stderr"
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log="$run/log"
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# unset fail on errors
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set +e
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# retry command forever
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# until success or abort
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while true; do
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# execute command
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command="$@"
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script -q -c "$command; exit \$?" 2>"$stderr" "$log" &
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pid="$!"
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output="$(cat "$stderr" | tee /dev/stderr)"
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wait "$pid"
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err="$(tail -n1 "$log" | awk -F '"' '{ print $2 }')"
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if [[ "$err" -eq 0 ]]; then
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# command succeeded, break loop
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break
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fi
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if [[ "$output" =~ "$auto_retry_regex" ]]; then
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# command errored and is set to auto retry
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continue
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fi
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if [[ ! -z "$GUIX_RETRY_NO_PROMPT" ]]; then
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# do not prompt, just fail
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exit 1
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fi
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# check if user wants to retry
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read -p "Command failed. Retry? (y/N): " response
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if [[ ! "$response" = "y" ]]; then
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# command failed and told to abort, break loop
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exit 1
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fi
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done
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