Add workflow to sync blackbox exporter releases
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shenlan
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203
.github/workflows/sync-blackbox-exporter.yml
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203
.github/workflows/sync-blackbox-exporter.yml
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name: Sync blackbox_exporter latest v0.* (matrix)
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on:
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workflow_dispatch:
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schedule:
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- cron: "0 2 * * *" # <-- 这是 UTC 02:00。若需 JST 02:00，请改为 "0 17 * * *"
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permissions:
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contents: read
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concurrency:
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group: sync-blackbox-exporter-v0
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cancel-in-progress: false
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jobs:
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prep:
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name: Resolve latest tag & remote check
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runs-on: ubuntu-latest
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env:
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GH_REPO: prometheus/blackbox_exporter
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GH_TOKEN: ${{ github.token }}
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RSYNC_SSH_KEY: ${{ secrets.RSYNC_SSH_KEY }}
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RSYNC_SSH_USER: ${{ secrets.RSYNC_SSH_USER }}
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VPS_HOST: ${{ secrets.VPS_HOST }}
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REMOTE_ROOT: /data/update-server/prometheus/blackbox_exporter
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outputs:
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tag: ${{ steps.latest.outputs.tag }}
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version: ${{ steps.latest.outputs.version }}
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exists: ${{ steps.remotecheck.outputs.exists }}
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steps:
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- uses: actions/checkout@v4
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- name: Ensure GitHub CLI & deps
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run: |
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set -euo pipefail
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sudo apt-get update -y
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sudo apt-get install -y gh jq rsync
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gh --version
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jq --version
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rsync --version | head -n1
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- name: Resolve latest tag (v0.*)
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id: latest
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run: |
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set -euo pipefail
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gh api -H "Accept: application/vnd.github+json" \
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"/repos/${GH_REPO}/releases?per_page=100" \
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| jq -r '.[].tag_name' \
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| grep -E '^v0(\\.|$)' \
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| sort -V -r \
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| head -n 1 > /tmp/tag.txt
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if [ ! -s /tmp/tag.txt ]; then
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echo "No v0.* tags found." >&2
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exit 1
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fi
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TAG=$(cat /tmp/tag.txt)
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VERSION=${TAG#v}
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echo "tag=$TAG" >> "$GITHUB_OUTPUT"
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echo "version=$VERSION" >> "$GITHUB_OUTPUT"
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echo "Latest tag: $TAG (version: $VERSION)"
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- name: Init SSH
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run: |
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set -euo pipefail
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mkdir -p ~/.ssh
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echo "$RSYNC_SSH_KEY" > ~/.ssh/id_rsa
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chmod 600 ~/.ssh/id_rsa
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ssh-keyscan -H "$VPS_HOST" >> ~/.ssh/known_hosts
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- name: Check remote existing version dir
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id: remotecheck
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env:
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VERSION: ${{ steps.latest.outputs.version }}
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run: |
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set -euo pipefail
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REMOTE_DIR="${REMOTE_ROOT}/${VERSION}"
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if ssh -i ~/.ssh/id_rsa "${RSYNC_SSH_USER}@${VPS_HOST}" "test -d '${REMOTE_DIR}'"; then
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echo "exists=true" >> "$GITHUB_OUTPUT"
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echo "Remote already has ${REMOTE_DIR}, skip whole sync."
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else
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echo "exists=false" >> "$GITHUB_OUTPUT"
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echo "Remote does not have ${REMOTE_DIR}, will sync."
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fi
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sync-one:
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name: Sync ${{ matrix.asset_suffix }} for ${{ needs.prep.outputs.version }}
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needs: prep
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if: needs.prep.outputs.exists == 'false'
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runs-on: ubuntu-latest
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strategy:
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fail-fast: false
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matrix:
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asset_suffix:
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- "linux-amd64.tar.gz"
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- "linux-arm64.tar.gz"
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- "linux-armv7.tar.gz"
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- "linux-armv6.tar.gz"
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- "windows-amd64.zip"
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- "darwin-amd64.tar.gz"
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- "darwin-arm64.tar.gz"
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env:
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GH_REPO: prometheus/blackbox_exporter
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GH_TOKEN: ${{ github.token }}
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RSYNC_SSH_KEY: ${{ secrets.RSYNC_SSH_KEY }}
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RSYNC_SSH_USER: ${{ secrets.RSYNC_SSH_USER }}
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VPS_HOST: ${{ secrets.VPS_HOST }}
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REMOTE_ROOT: /data/update-server/prometheus/blackbox_exporter
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TAG: ${{ needs.prep.outputs.tag }}
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VERSION: ${{ needs.prep.outputs.version }}
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steps:
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- uses: actions/checkout@v4
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- name: Ensure GitHub CLI & deps
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run: |
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set -euo pipefail
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sudo apt-get update -y
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sudo apt-get install -y gh jq rsync
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gh --version
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- name: Check asset exists via GitHub CLI
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id: has_asset
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run: |
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set -euo pipefail
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ASSET="blackbox_exporter-${VERSION}.${{ matrix.asset_suffix }}"
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echo "Checking asset $ASSET for tag ${TAG}"
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if gh release view "${TAG}" --repo "${GH_REPO}" --json assets \
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| jq -r '.assets[].name' | grep -Fxq "$ASSET"; then
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echo "asset=$ASSET" >> "$GITHUB_OUTPUT"
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echo "exists=true" >> "$GITHUB_OUTPUT"
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else
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echo "exists=false" >> "$GITHUB_OUTPUT"
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echo "Asset $ASSET not found for ${TAG}, will skip."
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fi
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- name: Download asset
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if: steps.has_asset.outputs.exists == 'true'
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run: |
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set -euo pipefail
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mkdir -p "releases/${VERSION}"
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gh release download "${TAG}" \
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--repo "${GH_REPO}" \
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--pattern "${{ steps.has_asset.outputs.asset }}" \
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--dir "releases/${VERSION}"
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- name: Init SSH
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if: steps.has_asset.outputs.exists == 'true'
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run: |
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set -euo pipefail
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mkdir -p ~/.ssh
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echo "$RSYNC_SSH_KEY" > ~/.ssh/id_rsa
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chmod 600 ~/.ssh/id_rsa
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ssh-keyscan -H "$VPS_HOST" >> ~/.ssh/known_hosts
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- name: Rsync this asset to remote
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if: steps.has_asset.outputs.exists == 'true'
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run: |
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set -euo pipefail
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REMOTE_DIR="${REMOTE_ROOT}/${VERSION}"
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ssh -i ~/.ssh/id_rsa "${RSYNC_SSH_USER}@${VPS_HOST}" "mkdir -p '${REMOTE_DIR}'"
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echo "Rsync releases/${VERSION}/${{ steps.has_asset.outputs.asset }} -> ${VPS_HOST}:${REMOTE_DIR}/"
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rsync -av -e "ssh -i ~/.ssh/id_rsa" \
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"releases/${VERSION}/${{ steps.has_asset.outputs.asset }}" "${RSYNC_SSH_USER}@${VPS_HOST}:${REMOTE_DIR}/"
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retention:
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name: Remote retention (keep latest 10 v0.*)
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needs: [prep, sync-one]
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if: needs.prep.outputs.exists == 'false'
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runs-on: ubuntu-latest
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env:
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RSYNC_SSH_KEY: ${{ secrets.RSYNC_SSH_KEY }}
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RSYNC_SSH_USER: ${{ secrets.RSYNC_SSH_USER }}
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VPS_HOST: ${{ secrets.VPS_HOST }}
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REMOTE_ROOT: /data/update-server/prometheus/blackbox_exporter
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steps:
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- name: Init SSH
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run: |
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set -euo pipefail
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mkdir -p ~/.ssh
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echo "$RSYNC_SSH_KEY" > ~/.ssh/id_rsa
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chmod 600 ~/.ssh/id_rsa
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ssh-keyscan -H "$VPS_HOST" >> ~/.ssh/known_hosts
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- name: Prune old versions on remote (keep 10)
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run: |
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set -euo pipefail
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ssh -i ~/.ssh/id_rsa "${RSYNC_SSH_USER}@${VPS_HOST}" bash -lc '
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set -euo pipefail
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cd "'"${REMOTE_ROOT}"'" || exit 0
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keep=10
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mapfile -t all < <(ls -1 | grep -E "^[0-9]+\\.[0-9]+\\.[0-9]+$" | sort -V -r || true)
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if [ "${#all[@]}" -le "$keep" ]; then
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echo "Nothing to prune. Count=${#all[@]}"
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exit 0
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fi
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to_delete=("${all[@]:keep}")
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echo "Pruning old versions: ${to_delete[*]}"
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for d in "${to_delete[@]}"; do
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rm -rf -- "$d"
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done
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'
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