18 lines
439 B
Bash
18 lines
439 B
Bash
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#!/usr/bin/env bash
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set -euo pipefail
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tag="${DOCKER_TAG:?DOCKER_TAG not set}"
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label="${SUMMARY_LABEL:-image}"
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exists=false
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if docker manifest inspect "$tag" >/dev/null 2>&1; then
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exists=true
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fi
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echo "exists=$exists" >>"${GITHUB_OUTPUT:?GITHUB_OUTPUT not set}"
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if [ "$exists" = "true" ] && [ -n "${GITHUB_STEP_SUMMARY:-}" ]; then
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echo "Docker tag $tag already exists; ${label} publish will be skipped." >>"$GITHUB_STEP_SUMMARY"
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fi
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