feat (wip): add brew tap for oasis-cli

Author: uniyalabhishek

.github/workflows/brew.yml

@@ -0,0 +1,18 @@
+name: Brew audit & test
+on: [push, pull_request]
+
+jobs:
+  audit:
+    strategy:
+      matrix:
+        os: [macos-latest, ubuntu-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: Homebrew/actions/setup-homebrew@master
+      - name: Audit
+        run: brew audit --strict --online --formula Formula/oasis.rb
+      - name: Build & test
+        run: |
+          brew install --build-from-source Formula/oasis.rb
+          oasis --version

.github/workflows/release.yml

@@ -34,3 +34,22 @@ jobs:
           make release-build
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: Bump Homebrew formula
+        if: startsWith(github.ref, 'refs/tags/')
+        env:
+          TAG: ${{ github.ref_name }}   # e.g. v0.4.5
+        run: |
+          FORMULA=Formula/oasis.rb
+          URL="https://github.com/oasisprotocol/cli/archive/refs/tags/${TAG}.tar.gz"
+          SHA256=$(curl -Ls $URL | shasum -a 256 | cut -d" " -f1)
+
+          sed -i.bak -E "s/^  version \".*\"/  version \"${TAG#v}\"/"  $FORMULA
+          sed -i.bak -E "s|^  url \".*\"|  url \"${URL}\"|"            $FORMULA
+          sed -i.bak -E "s/^  sha256 \".*\"/  sha256 \"${SHA256}\"/"  $FORMULA
+          rm $FORMULA.bak
+
+          git config user.name  "github-actions[bot]"
+          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
+          git add $FORMULA
+          git commit -m "brew(oasis): bump to ${TAG}"
+          git push

Formula/oasis.rb

@@ -0,0 +1,32 @@
+# typed: false
+# frozen_string_literal: true
+
+class Oasis < Formula
+  desc      "CLI for interacting with the Oasis network"
+  homepage  "https://github.com/oasisprotocol/cli"
+  license   "Apache-2.0"
+  version   "0.0.0"         # ──► Automatically bumped on every tag by CI
+
+  # Source tarball for the tagged release
+  url "https://github.com/oasisprotocol/cli/archive/refs/tags/v#{version}.tar.gz"
+  sha256 "<SHA256_FROM_CI>" # ──► Replaced by release workflow
+
+  depends_on "go" => :build
+
+  livecheck do
+    url   :stable
+    regex(/^v?(\d+\.\d+\.\d+)$/i)
+  end
+
+  def install
+    ldflags = %W[
+      -s -w
+      -X github.com/oasisprotocol/cli/version.Software=#{version}
+    ].join(" ")
+    system "go", "build", *std_go_args(ldflags: ldflags), "./"
+  end
+
+  test do
+    assert_match version.to_s, shell_output("#{bin}/oasis --version")
+  end
+end