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caching-strategies.md
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@ -102,7 +102,7 @@ The [GitHub Context](https://docs.github.com/en/actions/learn-github-actions/con
While setting paths for caching dependencies it is important to give correct path depending on the hosted runner you are using or whether the action is running in a container job. Assigning different `path` for save and restore will result in cache miss. While setting paths for caching dependencies it is important to give correct path depending on the hosted runner you are using or whether the action is running in a container job. Assigning different `path` for save and restore will result in cache miss.
Below are GiHub hosted runner specific paths one should take care of when writing a workflow which saves/restores caches across OS. Below are GitHub hosted runner specific paths one should take care of when writing a workflow which saves/restores caches across OS.
#### Ubuntu Paths #### Ubuntu Paths

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save/README.md
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@ -79,8 +79,10 @@ To avoid saving a cache that already exists, the `cache-hit` output from a resto
The `cache-primary-key` output from the restore step should also be used to ensure The `cache-primary-key` output from the restore step should also be used to ensure
the cache key does not change during the build if it's calculated based on file contents. the cache key does not change during the build if it's calculated based on file contents.
Here's an example where we imagine we're calculating a lot of prime numbers and want to cache them:
```yaml ```yaml
name: Always Caching Primes name: Always Caching Prime Numbers
on: push on: push
@ -91,23 +93,23 @@ jobs:
steps: steps:
- uses: actions/checkout@v4 - uses: actions/checkout@v4
- name: Restore cached Primes - name: Restore cached Prime Numbers
id: cache-primes-restore id: cache-prime-numbers-restore
uses: actions/cache/restore@v4 uses: actions/cache/restore@v4
with: with:
key: ${{ runner.os }}-primes key: ${{ runner.os }}-prime-numbers
path: | path: |
path/to/dependencies path/to/dependencies
some/other/dependencies some/other/dependencies
# Intermediate workflow steps # Intermediate workflow steps
- name: Always Save Primes - name: Always Save Prime Numbers
id: cache-primes-save id: cache-prime-numbers-save
if: always() && steps.cache-primes-restore.outputs.cache-hit != 'true' if: always() && steps.cache-prime-numbers-restore.outputs.cache-hit != 'true'
uses: actions/cache/save@v4 uses: actions/cache/save@v4
with: with:
key: ${{ steps.cache-primes-restore.outputs.cache-primary-key }} key: ${{ steps.cache-prime-numbers-restore.outputs.cache-primary-key }}
path: | path: |
path/to/dependencies path/to/dependencies
some/other/dependencies some/other/dependencies