saru
3a3c4d55e0
- Store cache as tar.xz archives on runner filesystem at ~/.cache/.cache-store/ - No external API calls, no node.js, no curl needed - Restore extracts archive if key matches, save creates one on miss - Drastically simpler and more reliable for self-hosted runners
76 lines
2.4 KiB
YAML
76 lines
2.4 KiB
YAML
name: 'Cache'
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description: 'Cache build files as tar.xz on the runner filesystem'
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inputs:
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path:
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description: 'Directory to cache'
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required: false
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default: '~/.cache/'
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key-prefix:
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description: 'Prefix for the cache key'
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required: true
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key-file:
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description: 'File to hash for the cache key'
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required: true
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outputs:
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cache-hit:
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description: 'true if exact key match found, false otherwise'
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value: ${{ steps.restore.outputs.cache-hit }}
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runs:
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using: "composite"
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steps:
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- name: Restore cache
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id: restore
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shell: bash
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run: |
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CACHE_DIR="$HOME/.cache/.cache-store"
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mkdir -p "$CACHE_DIR"
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KEY_HASH=$(sha256sum "${{ inputs.key-file }}" | awk '{print $1}')
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CACHE_KEY="${{ inputs.key-prefix }}-${KEY_HASH}"
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ARCHIVE="${CACHE_DIR}/${CACHE_KEY}.tar.xz"
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EXPANDED_PATH=$(eval echo "${{ inputs.path }}")
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echo "cache-hit=false" >> $GITHUB_OUTPUT
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if [ -f "$ARCHIVE" ]; then
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echo "Cache hit: ${CACHE_KEY}"
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mkdir -p "$EXPANDED_PATH"
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tar -xf "$ARCHIVE" -C "/" 2>/dev/null || true
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echo "cache-hit=true" >> $GITHUB_OUTPUT
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else
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echo "Cache miss: ${CACHE_KEY}"
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# Try restore-keys fallback
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for prefix in ${{ inputs.restore-keys }}; do
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FALLBACK=$(ls -t "${CACHE_DIR}/${prefix}"*.tar.xz 2>/dev/null | head -1)
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if [ -n "$FALLBACK" ] && [ -f "$FALLBACK" ]; then
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echo "Fallback hit: $(basename "$FALLBACK")"
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mkdir -p "$EXPANDED_PATH"
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tar -xf "$FALLBACK" -C "/" 2>/dev/null || true
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break
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fi
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done
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fi
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- name: Save cache
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if: steps.restore.outputs.cache-hit != 'true'
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shell: bash
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run: |
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CACHE_DIR="$HOME/.cache/.cache-store"
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mkdir -p "$CACHE_DIR"
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KEY_HASH=$(sha256sum "${{ inputs.key-file }}" | awk '{print $1}')
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CACHE_KEY="${{ inputs.key-prefix }}-${KEY_HASH}"
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ARCHIVE="${CACHE_DIR}/${CACHE_KEY}.tar.xz"
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EXPANDED_PATH=$(eval echo "${{ inputs.path }}")
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if [ ! -d "$EXPANDED_PATH" ] || [ -z "$(ls -A "$EXPANDED_PATH" 2>/dev/null)" ]; then
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echo "Cache directory empty, skipping save"
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exit 0
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fi
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echo "Saving cache: ${CACHE_KEY}"
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REL_PATH="$(echo "$EXPANDED_PATH" | sed 's|^/||')"
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tar -cJf "$ARCHIVE" -C "/" "$REL_PATH" 2>/dev/null && echo "Cache saved" || echo "Cache save failed"
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