Merge pull request #804 from actions/Phantsure-patch-1

Update README to call out for version of cache
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Sampark Sharma 2022-05-26 09:26:58 +05:30 committed by GitHub
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@ -177,6 +177,58 @@ steps:
> Note: The `id` defined in `actions/cache` must match the `id` in the `if` statement (i.e. `steps.[ID].outputs.cache-hit`)
## Cache Version
Cache version is unique for a combination of compression tool used for compression of cache (Gzip, Zstd, etc based on runner OS) and the path of directories being cached. If two caches have different versions, they are identified as unique cache entries. This also means that a cache created on `windows-latest` runner can't be restored on `ubuntu-latest` as cache `Version`s are different.
Example: Below example will create 3 unique caches with same keys. Ubuntu and windows runners will use different compression technique and hence create two different caches. And `build-linux` will create two different caches as the `paths` are different.
```yaml
jobs:
build-linux:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v3
- name: Cache Primes
id: cache-primes
uses: actions/cache@v3
with:
path: prime-numbers
key: primes
- name: Generate Prime Numbers
if: steps.cache-primes.outputs.cache-hit != 'true'
run: ./generate-primes.sh -d prime-numbers
- name: Cache Numbers
id: cache-numbers
uses: actions/cache@v3
with:
path: numbers
key: primes
- name: Generate Numbers
if: steps.cache-numbers.outputs.cache-hit != 'true'
run: ./generate-primes.sh -d numbers
build-windows:
runs-on: windows-latest
steps:
- uses: actions/checkout@v3
- name: Cache Primes
id: cache-primes
uses: actions/cache@v3
with:
path: prime-numbers
key: primes
- name: Generate Prime Numbers
if: steps.cache-primes.outputs.cache-hit != 'true'
run: ./generate-primes -d prime-numbers
```
## Contributing
We would love for you to contribute to `actions/cache`, pull requests are welcome! Please see the [CONTRIBUTING.md](CONTRIBUTING.md) for more information.