49 lines
2.0 KiB
Markdown
49 lines
2.0 KiB
Markdown
# 0. Support caching dependencies for mono repos
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Date: 2021-07-13
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Status: Proposed
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## Context
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Currently, `actions/setup-node` supports caching dependencies for Npm and Yarn package managers.
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For the first iteration, we have decided to not support cases where `package-lock.json` / `yarn.lock` are located outside of repository root.
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Current implementation searches the following file patterns in the repository root: `package-lock.json`, `yarn.lock` (in order of resolving priorities)
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Obviously, it made build-in caching unusable for mono-repos and repos with complex structure.
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We would like to revisit this decision and add customization for dependencies lock file location.
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## Proposal
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We have the following options:
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1. Allow to specify directory where `package-lock.json` or `yarn.lock` are located
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2. Allow to specify path to the dependencies lock file (including directory path and filename)
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The second option looks more generic because it allows to:
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- specify multiple dependencies files using file patterns like `**/package-lock.json` ([one of recommended approaches in actions/cache](https://github.com/actions/cache/blob/main/examples.md#macos-and-ubuntu))
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- specify custom dependencies files like `src/npm-shrinkwrap.json`
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- change default resolving priority if both `yarn.lock` and `package-lock.json` exist in repository
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## Decision
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Add `cache-dependency-path` input that will accept path (relative to repository root) to dependencies lock file.
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If provided path contains wildcards, the action will search all maching files and calculate common hash like `${{ hashFiles('**/package-lock.json') }}` YAML construction does.
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The hash of provided matched files will be used as a part of cache key.
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Yaml examples:
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```yml
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steps:
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- uses: actions/checkout@v2
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- uses: actions/setup-node@v2
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with:
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node-version: 14
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cache: npm
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cache-dependency-path: 'sub-project/package-lock.json'
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```
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```yml
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steps:
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- uses: actions/checkout@v2
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- uses: actions/setup-node@v2
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with:
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node-version: 14
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cache: yarn
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cache-dependency-path: 'sub-project/**/yarn.lock'
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```
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