Homebrew formula: install .app bundle on macOS instead of bare binary

Downloads the .app.zip on macOS so the formula gives the full native
experience (dock icon, window chrome) like the npm package does.
Binary is symlinked from inside the bundle.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: lightsofapollo

homebrew/attn.rb.template

@@ -6,8 +6,8 @@ class Attn < Formula
 
   on_macos do
     on_arm do
-      url "https://github.com/lightsofapollo/attn/releases/download/v#{version}/attn-v#{version}-darwin-arm64"
-      sha256 "%%SHA256_DARWIN_ARM64%%"
+      url "https://github.com/lightsofapollo/attn/releases/download/v#{version}/attn-v#{version}-darwin-arm64.app.zip"
+      sha256 "%%SHA256_DARWIN_ARM64_APP%%"
     end
   end
 
@@ -19,12 +19,17 @@ class Attn < Formula
   end
 
   def install
-    downloaded = Dir["attn-v*"].first
-    if downloaded
-      mv downloaded, "attn"
+    if OS.mac?
+      prefix.install "attn.app"
+      bin.install_symlink prefix/"attn.app/Contents/MacOS/attn"
+    else
+      downloaded = Dir["attn-v*"].first
+      if downloaded
+        mv downloaded, "attn"
+      end
+      chmod 0755, "attn"
+      bin.install "attn"
     end
-    chmod 0755, "attn"
-    bin.install "attn"
   end
 
   test do

homebrew/update-tap.sh

@@ -31,14 +31,9 @@ fi
 
 echo "Fetching SHA256 checksums for ${TAG}..."
 
-SHA_DARWIN_ARM64="$(curl -sfL "https://github.com/${REPO}/releases/download/${TAG}/attn-${TAG}-darwin-arm64.sha256" | awk '{print $1}')"
 SHA_LINUX_X64="$(curl -sfL "https://github.com/${REPO}/releases/download/${TAG}/attn-${TAG}-linux-x64.sha256" | awk '{print $1}')"
 SHA_DARWIN_ARM64_APP="$(curl -sfL "https://github.com/${REPO}/releases/download/${TAG}/attn-${TAG}-darwin-arm64.app.zip.sha256" | awk '{print $1}')"
 
-if [ -z "$SHA_DARWIN_ARM64" ]; then
-  echo "Failed to fetch darwin-arm64 SHA256" >&2
-  exit 1
-fi
 if [ -z "$SHA_LINUX_X64" ]; then
   echo "Failed to fetch linux-x64 SHA256" >&2
   exit 1
@@ -48,15 +43,14 @@ if [ -z "$SHA_DARWIN_ARM64_APP" ]; then
   exit 1
 fi
 
-echo "  darwin-arm64:     ${SHA_DARWIN_ARM64}"
 echo "  linux-x64:        ${SHA_LINUX_X64}"
 echo "  darwin-arm64 app: ${SHA_DARWIN_ARM64_APP}"
 
 # --- Update Formula ---
 
 FORMULA="$(sed \
   -e "s/%%VERSION%%/${VERSION}/g" \
-  -e "s/%%SHA256_DARWIN_ARM64%%/${SHA_DARWIN_ARM64}/g" \
+  -e "s/%%SHA256_DARWIN_ARM64_APP%%/${SHA_DARWIN_ARM64_APP}/g" \
   -e "s/%%SHA256_LINUX_X64%%/${SHA_LINUX_X64}/g" \
   "$FORMULA_TEMPLATE")"