106 lines
2.3 KiB
Markdown
106 lines
2.3 KiB
Markdown
Cache Action
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============
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A Gitea Action that caches build files as `tar.xz` archives on the runner filesystem. Simple, fast, no external dependencies.
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## Inputs
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| Input | Description | Required | Default |
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|-------|-------------|----------|---------|
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| `path` | Single directory to cache | No | `~/.cache/` |
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| `key-prefix` | Prefix for the cache key | Yes | — |
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| `key-file` | File to hash (SHA-256) for the cache key | Yes | — |
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## Outputs
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| Output | Description |
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|--------|-------------|
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| `cache-hit` | `true` if exact key match found, `false` otherwise |
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## How It Works
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1. Hashes `key-file` with SHA-256, combines with `key-prefix` as `<prefix>-<hash>`
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2. Stores archives at `~/.cache/.cache-store/<key>.tar.xz`
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3. Restores by extracting the archive to `/`, saves by creating one
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## Usage
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This action must be used **twice** in your workflow:
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1. **Before build** — restores cache if it exists
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2. **After build** — saves the cache archive (only on cache miss)
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## Rust Example
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```yaml
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name: Rust Build
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on: push
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defaults:
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run:
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shell: bash
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jobs:
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build:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v4
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# 1. Restore cache before build
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- uses: Actions/Cache@main
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id: cache
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with:
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key-prefix: 'cargo-registry'
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key-file: 'Cargo.lock'
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path: '~/.cargo/registry'
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- name: Build
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run: cargo build --release
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# 2. Save cache after build
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- uses: Actions/Cache@main
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with:
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key-prefix: 'cargo-registry'
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key-file: 'Cargo.lock'
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path: '~/.cargo/registry'
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```
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## Skip Steps on Cache Hit
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```yaml
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name: Build with Conditional Steps
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on: push
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defaults:
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run:
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shell: bash
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jobs:
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build:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v4
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# 1. Restore cache
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- uses: Actions/Cache@main
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id: cache
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with:
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key-prefix: 'rust'
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key-file: 'Cargo.lock'
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path: '~/.cargo/registry'
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- name: Fetch dependencies
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if: steps.cache.outputs.cache-hit != 'true'
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run: cargo fetch
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- name: Build
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run: cargo build --release
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# 2. Save cache
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- uses: Actions/Cache@main
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with:
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key-prefix: 'rust'
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key-file: 'Cargo.lock'
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path: '~/.cargo/registry'
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```
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