Functions necessary for caching dependencies and build outputs to improve workflow execution time.
See "Caching dependencies to speed up workflows" for how caching works.
Note that GitHub will remove any cache entries that have not been accessed in over 7 days. There is no limit on the number of caches you can store, but the total size of all caches in a repository is limited to 10 GB. If you exceed this limit, GitHub will save your cache but will begin evicting caches until the total size is less than 10 GB.
UsageThis package is used by the v2+ versions of our first party cache action. You can find an example implementation in the cache repo here.
Save CacheSaves a cache containing the files in
keyprovided. The files would be compressed using zstandard compression algorithm if zstd is installed, otherwise gzip is used. Function returns the cache id if the cache was saved succesfully and throws an error if cache upload fails.
const cache = require('@actions/cache'); const paths = [ 'node_modules', 'packages/*/node_modules/' ] const key = 'npm-foobar-d5ea0750' const cacheId = await cache.saveCache(paths, key)
Restore CacheRestores a cache based on
pathsprovided. Function returns the cache key for cache hit and returns undefined if cache not found.
const cache = require('@actions/cache'); const paths = [ 'node_modules', 'packages/*/node_modules/' ] const key = 'npm-foobar-d5ea0750' const restoreKeys = [ 'npm-foobar-', 'npm-' ] const cacheKey = await cache.restoreCache(paths, key, restoreKeys)
Cache segment restore timeoutA cache gets downloaded in multiple segments of fixed sizes (
64-bitrunner). Sometimes, a segment download gets stuck which causes the workflow job to be stuck forever and fail. Version
v3.0.4of cache package introduces a segment download timeout. The segment download timeout will allow the segment download to get aborted and hence allow the job to proceed with a cache miss.
Default value of this timeout is 60 minutes and can be customized by specifying an environment variable named
SEGMENT_DOWNLOAD_TIMEOUT_MINSwith timeout value in minutes.