feat: cache release binary in action

action.yml

@@ -2,6 +2,10 @@ name: vociferate
 description: Prepare release files or recommend a next semantic version tag.
 
 inputs:
+  token:
+    description: Optional token used to download the cached vociferate release binary. When omitted, the workflow token is used.
+    required: false
+    default: ''
   version:
     description: Optional semantic version override. When omitted, the recommended version is used.
     required: false
@@ -32,13 +36,87 @@ runs:
   steps:
     - uses: actions/checkout@v4
 
-    - uses: actions/setup-go@v5
+    - name: Resolve vociferate binary metadata
+      id: resolve-binary
+      shell: bash
+      env:
+        ACTION_REF: ${{ github.action_ref }}
+        SERVER_URL: ${{ github.server_url }}
+        API_URL: ${{ github.api_url }}
+        TOKEN: ${{ inputs.token != '' && inputs.token || github.token }}
+        RUNNER_ARCH: ${{ runner.arch }}
+        RUNNER_TEMP: ${{ runner.temp }}
+      run: |
+        set -euo pipefail
+
+        case "$RUNNER_ARCH" in
+          X64)
+            arch="amd64"
+            ;;
+          ARM64)
+            arch="arm64"
+            ;;
+          *)
+            echo "Unsupported runner architecture: $RUNNER_ARCH" >&2
+            exit 1
+            ;;
+        esac
+
+        release_tag="$ACTION_REF"
+        if [[ -z "$release_tag" || "$release_tag" == refs/* || "$release_tag" != v* ]]; then
+          release_tag="$(curl -fsSL \
+            -H "Authorization: token ${TOKEN}" \
+            -H "Content-Type: application/json" \
+            "${API_URL}/repos/aether/vociferate/releases/latest" | sed -n 's/.*"tag_name"[[:space:]]*:[[:space:]]*"\([^"]*\)".*/\1/p' | head -n 1)"
+        fi
+
+        if [[ -z "$release_tag" ]]; then
+          echo "Unable to resolve a vociferate release tag for binary download" >&2
+          exit 1
+        fi
+
+        normalized_version="${release_tag#v}"
+        asset_name="vociferate_${normalized_version}_linux_${arch}"
+        cache_dir="${RUNNER_TEMP}/vociferate/${release_tag}/linux-${arch}"
+        binary_path="${cache_dir}/vociferate"
+        asset_url="${SERVER_URL}/aether/vociferate/releases/download/${release_tag}/${asset_name}"
+
+        mkdir -p "$cache_dir"
+
+        echo "release_tag=$release_tag" >> "$GITHUB_OUTPUT"
+        echo "asset_name=$asset_name" >> "$GITHUB_OUTPUT"
+        echo "asset_url=$asset_url" >> "$GITHUB_OUTPUT"
+        echo "cache_dir=$cache_dir" >> "$GITHUB_OUTPUT"
+        echo "binary_path=$binary_path" >> "$GITHUB_OUTPUT"
+
+    - name: Restore cached vociferate binary
+      id: cache-vociferate
+      uses: actions/cache@v4
       with:
-        go-version: '1.26.1'
+        path: ${{ steps.resolve-binary.outputs.cache_dir }}
+        key: vociferate-${{ steps.resolve-binary.outputs.release_tag }}-linux-${{ runner.arch }}
+
+    - name: Download vociferate binary
+      if: steps.cache-vociferate.outputs.cache-hit != 'true'
+      shell: bash
+      env:
+        TOKEN: ${{ inputs.token != '' && inputs.token || github.token }}
+        ASSET_URL: ${{ steps.resolve-binary.outputs.asset_url }}
+        BINARY_PATH: ${{ steps.resolve-binary.outputs.binary_path }}
+      run: |
+        set -euo pipefail
+
+        curl --fail --location \
+          -H "Authorization: token ${TOKEN}" \
+          -o "$BINARY_PATH" \
+          "$ASSET_URL"
+        chmod +x "$BINARY_PATH"
 
     - name: Run vociferate
       id: run-vociferate
       shell: bash
+      env:
+        VOCIFERATE_BIN: ${{ steps.resolve-binary.outputs.binary_path }}
       run: |
         set -euo pipefail
 
@@ -57,16 +135,16 @@ runs:
         fi
 
         if [[ "${{ inputs.recommend }}" == "true" ]]; then
-          resolved_version="$(go run git.hrafn.xyz/aether/vociferate/cmd/vociferate@latest "${common_args[@]}" --recommend)"
+          resolved_version="$("$VOCIFERATE_BIN" "${common_args[@]}" --recommend)"
           echo "$resolved_version"
           echo "version=$resolved_version" >> "$GITHUB_OUTPUT"
           exit 0
         else
           resolved_version="$(printf '%s' "${{ inputs.version }}" | sed 's/^[[:space:]]\+//; s/[[:space:]]\+$//')"
           if [[ -z "$resolved_version" ]]; then
-            resolved_version="$(go run git.hrafn.xyz/aether/vociferate/cmd/vociferate@latest "${common_args[@]}" --recommend)"
+            resolved_version="$("$VOCIFERATE_BIN" "${common_args[@]}" --recommend)"
           fi
         fi
 
         echo "version=$resolved_version" >> "$GITHUB_OUTPUT"
-        go run git.hrafn.xyz/aether/vociferate/cmd/vociferate@latest "${common_args[@]}" --version "$resolved_version" --date "$(date -u +%F)"
+        "$VOCIFERATE_BIN" "${common_args[@]}" --version "$resolved_version" --date "$(date -u +%F)"