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Merge pull request #961 from actions/kotewar/doc-update 

Update README with clearer info about cache-hit and its value
pull/876/head^2
Sankalp Kotewar 2022-10-26 17:10:10 +05:30 committed by GitHub
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@ -34,17 +34,18 @@ If you are using this inside a container, a POSIX-compliant `tar` needs to be in
* `path` - A list of files, directories, and wildcard patterns to cache and restore. See [`@actions/glob`](https://github.com/actions/toolkit/tree/main/packages/glob) for supported patterns.
* `key` - An explicit key for restoring and saving the cache
* `restore-keys` - An ordered list of prefix-matched keys to use for restoring stale cache if no cache hit occurred for key. Note
`cache-hit` returns false in this case.
* `restore-keys` - An ordered list of prefix-matched keys to use for restoring stale cache if no cache hit occurred for key.
#### Environment Variables
* `SEGMENT_DOWNLOAD_TIMEOUT_MINS` - Segment download timeout (in minutes, default `60`) to abort download of the segment if not completed in the defined number of minutes. [Read more](#cache-segment-restore-timeout)
### Outputs
* `cache-hit` - A boolean value to indicate an exact match was found for the key
* `cache-hit` - A boolean value to indicate an exact match was found for the key.
> See [Skipping steps based on cache-hit](#Skipping-steps-based-on-cache-hit) for info on using this output
> Note: `cache-hit` will be set to `true` only when cache hit occurs for the exact `key` match. For a partial key match via `restore-keys` or a cache miss, it will be set to `false`.
See [Skipping steps based on cache-hit](#skipping-steps-based-on-cache-hit) for info on using this output
### Cache scopes
The cache is scoped to the key and branch. The default branch cache is available to other branches.
@ -152,7 +153,7 @@ A repository can have up to 10GB of caches. Once the 10GB limit is reached, olde
## Skipping steps based on cache-hit
Using the `cache-hit` output, subsequent steps (such as install or build) can be skipped when a cache hit occurs on the key.
Using the `cache-hit` output, subsequent steps (such as install or build) can be skipped when a cache hit occurs on the key. It is recommended to install the missing/updated dependencies in case of a partial key match when the key is dependent on the `hash` of the package file.
Example:
```yaml