setup-tap.sh

#!/usr/bin/env bash
# Create the Homebrew tap so `brew install zainulabidin302/tap/datasip` works.
# Prereq: run ./ship.sh first (so the v0.1.0 tag contains the Go source).
# Needs: gh (authed), curl, shasum.
set -euo pipefail
OWNER=zainulabidin302
VER=v0.1.0
TARBALL="https://github.com/$OWNER/datasip/archive/refs/tags/$VER.tar.gz"

echo "→ fetching release tarball to checksum it…"
tmpf="$(mktemp)"
curl -fsSL "$TARBALL" -o "$tmpf"

if ! tar tzf "$tmpf" | grep -q '/main\.go$'; then
  echo "✗ $VER tarball has no Go source. Run ./ship.sh first to update the tag, then re-run this."
  exit 1
fi
SHA="$(shasum -a 256 "$tmpf" | awk '{print $1}')"
echo "  sha256: $SHA"

work="$(mktemp -d)"; cd "$work"
if gh repo view "$OWNER/homebrew-tap" >/dev/null 2>&1; then
  gh repo clone "$OWNER/homebrew-tap"
else
  gh repo create "$OWNER/homebrew-tap" --public --clone \
    --description "Homebrew tap for datasip"
fi
cd homebrew-tap
mkdir -p Formula
cat > Formula/datasip.rb <<RUBY
class Datasip < Formula
  desc "See which app is eating your data - live, per-app, over any time window"
  homepage "https://github.com/$OWNER/datasip"
  url "$TARBALL"
  sha256 "$SHA"
  license "MIT"
  head "https://github.com/$OWNER/datasip.git", branch: "main"

  depends_on "go" => :build

  def install
    system "go", "build", *std_go_args(ldflags: "-s -w"), "."
  end

  test do
    assert_match "datasip", shell_output("#{bin}/datasip version")
  end
end
RUBY
git add -A
git commit -m "datasip $VER" >/dev/null 2>&1 || echo "(formula already up to date)"
git branch -M main
git push -u origin main
echo "✓ tap published. Now: brew install $OWNER/tap/datasip"