51 lines
1.5 KiB
YAML
51 lines
1.5 KiB
YAML
name: Retry a flaky command
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description: >-
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Run a shell command, retrying on non-zero exit. For dependency installs
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(npm ci, uv sync) whose only failures are transient network/toolchain
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flakes — a node-gyp header fetch, a registry blip — so CI self-heals
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instead of needing a manual re-run.
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inputs:
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command:
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description: Shell command to run (and retry).
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required: true
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attempts:
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description: Max attempts before giving up.
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default: "3"
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delay:
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description: Seconds to wait between attempts.
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default: "10"
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working-directory:
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description: Directory to run in.
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default: "."
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runs:
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using: composite
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steps:
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- shell: bash
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working-directory: ${{ inputs.working-directory }}
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# command goes through env, never interpolated into the script body, so
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# a command with quotes/specials can't break or inject into the runner.
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env:
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_CMD: ${{ inputs.command }}
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_ATTEMPTS: ${{ inputs.attempts }}
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_DELAY: ${{ inputs.delay }}
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run: |
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set -uo pipefail
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n=0
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while :; do
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n=$((n + 1))
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echo "::group::attempt $n/$_ATTEMPTS: $_CMD"
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if bash -c "$_CMD"; then
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echo "::endgroup::"
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exit 0
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fi
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echo "::endgroup::"
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if [ "$n" -ge "$_ATTEMPTS" ]; then
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echo "::error::failed after $n attempts: $_CMD"
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exit 1
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fi
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echo "::warning::attempt $n failed; retrying in ${_DELAY}s: $_CMD"
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sleep "$_DELAY"
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done
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