Donavan Fritz
97 lines
2.9 KiB
YAML
97 lines
2.9 KiB
YAML
name: Cascade FROM bump
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description: |
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Bump a `FROM <image>:<tag>` line in a target repo's Dockerfile to trigger that
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repo's CI. Used when a base image rebuild needs to cascade rebuilds in
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downstream image repos.
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inputs:
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target-repo:
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description: Target repo to edit (e.g. fritzlab/runner)
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required: true
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image:
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description: Image referenced in the target file's FROM line (e.g. code.fritzlab.net/fritzlab/base)
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required: true
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tag:
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description: New tag. Defaults to github.run_number when empty.
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required: false
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default: ''
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file:
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description: File path inside target-repo to edit
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required: false
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default: Dockerfile
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token:
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description: CI_BOT_TOKEN with write access to target-repo
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required: true
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host:
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description: Gitea host (without protocol)
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required: false
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default: code.fritzlab.net
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message:
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description: Commit message override. Defaults to "bump <image> to #<tag>".
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required: false
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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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- name: Clone, edit, push
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shell: bash
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env:
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TARGET_REPO: ${{ inputs.target-repo }}
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IMAGE: ${{ inputs.image }}
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TAG_INPUT: ${{ inputs.tag }}
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FILE: ${{ inputs.file }}
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TOKEN: ${{ inputs.token }}
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HOST: ${{ inputs.host }}
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MESSAGE: ${{ inputs.message }}
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RUN_NUMBER: ${{ github.run_number }}
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run: |
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set -euo pipefail
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TAG="${TAG_INPUT:-$RUN_NUMBER}"
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NAME="$(basename "$IMAGE")"
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MSG="${MESSAGE:-bump ${NAME} to #${TAG}}"
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WORK="$(mktemp -d)"
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trap 'rm -rf "$WORK"' EXIT
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git clone --depth 1 "https://ci-bot:${TOKEN}@${HOST}/${TARGET_REPO}.git" "$WORK"
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cd "$WORK"
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git config user.name ci-bot
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git config user.email ci-bot@fritzlab.net
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if [ ! -f "$FILE" ]; then
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echo "FATAL: ${FILE} not found in ${TARGET_REPO}"
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exit 1
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fi
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# Escape forward slashes for sed pattern
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ESC_IMAGE="${IMAGE//\//\\/}"
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sed -i "s|^FROM ${IMAGE}:.*|FROM ${IMAGE}:${TAG}|" "$FILE"
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if ! grep -q "^FROM ${IMAGE}:${TAG}\b" "$FILE"; then
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echo "FATAL: sed did not match a FROM line for ${IMAGE} in ${FILE}"
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grep "^FROM" "$FILE" || true
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exit 1
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fi
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if git diff --quiet; then
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echo "${TARGET_REPO} already on ${NAME}:${TAG}, skipping"
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exit 0
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fi
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git add "$FILE"
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git commit -m "$MSG"
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ATTEMPTS=0
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until git push origin main; do
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ATTEMPTS=$((ATTEMPTS + 1))
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if [ "$ATTEMPTS" -ge 3 ]; then
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echo "FATAL: push to ${TARGET_REPO} failed after ${ATTEMPTS} attempts"
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exit 1
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fi
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echo "push rejected, attempt ${ATTEMPTS}; rebasing and retrying"
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git pull --rebase origin main
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sleep $((ATTEMPTS * 2))
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done
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echo "cascaded ${NAME}:${TAG} → ${TARGET_REPO}"
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