Update README with accurate single-path usage examples

README.md

@@ -7,9 +7,9 @@ A Gitea Action that caches build files as `tar.xz` archives on the runner filesy
 
 | Input | Description | Required | Default |
 |-------|-------------|----------|---------|
-| `path` | Directory to cache | No | `~/.cache/` |
+| `path` | Single directory to cache | No | `~/.cache/` |
 | `key-prefix` | Prefix for the cache key | Yes | — |
-| `key-file` | File to hash for the cache key | Yes | — |
+| `key-file` | File to hash (SHA-256) for the cache key | Yes | — |
 
 ## Outputs
 
@@ -19,9 +19,9 @@ A Gitea Action that caches build files as `tar.xz` archives on the runner filesy
 
 ## How It Works
 
-1. Hashes `key-file` with SHA-256, combines with `key-prefix` as the cache key
+1. Hashes `key-file` with SHA-256, combines with `key-prefix` as `<prefix>-<hash>`
 2. Stores archives at `~/.cache/.cache-store/<key>.tar.xz`
-3. Restores by extracting the archive, saves by creating one
+3. Restores by extracting the archive to `/`, saves by creating one
 
 ## Rust Example
 
@@ -40,12 +40,9 @@ jobs:
       - uses: actions/checkout@v4
       - uses: Actions/Cache@main
         with:
-          key-prefix: 'rust'
+          key-prefix: 'cargo-registry'
           key-file: 'Cargo.lock'
-          path: |
-            ~/.cargo/registry
-            ~/.cargo/git
-            target
+          path: '~/.cargo/registry'
       - name: Build
         run: cargo build --release
 ```
@@ -56,6 +53,10 @@ jobs:
 name: Build with Conditional Steps
 on: push
 
+defaults:
+  run:
+    shell: bash
+
 jobs:
   build:
     runs-on: ubuntu-latest
@@ -66,6 +67,7 @@ jobs:
         with:
           key-prefix: 'rust'
           key-file: 'Cargo.lock'
+          path: '~/.cargo/registry'
       - name: Fetch dependencies
         if: steps.cache.outputs.cache-hit != 'true'
         run: cargo fetch