initial addition of homebrew release

Signed-off-by: Brooks Townsend <brooks@cosmonic.com>

.github/workflows/release_brew.yml

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+name: Release wash to homebrew
+on:
+  workflow_dispatch:
+    inputs:
+      dry_run:
+        description: "Build the release but don't push to homebrew"
+        required: true
+        default: false
+        type: boolean
+  workflow_run:
+    workflows: [Release]
+    types: [completed]
+jobs:
+  # Only runs if the regular release fails
+  failure_run:
+    runs-on: ubuntu-latest
+    if: ${{ github.event.workflow_run.conclusion == 'failure' }}
+    steps:
+      - uses: actions/checkout@v3
+      - run: |
+          echo "Release workflow failed, not releasing to homebrew"
+          exit 1
+
+  release_homebrew:
+    runs-on: ubuntu-latest
+    if: ${{ github.event_name == 'workflow_dispatch' || github.event.workflow_run.conclusion == 'success' }}
+    steps:
+      - uses: actions/checkout@v3
+      # Update the homebrew formula
+      - name: Update formula
+        env:
+          #TODO: verify this is the actual tag
+          WASH_VERSION: v0.17.4
+          # WASH_VERSION: ${{ github.ref_name }}
+        run: |
+          release_tarball_url="https://github.com/wasmCloud/wash/archive/$WASH_VERSION.tar.gz"
+          curl -fLO $release_tarball_url
+          washsha=$(shasum -a 256 $WASH_VERSION.tar.gz | cut -d ' ' -f 1)
+          release_tarball_sed="https:\/\/github.com\/wasmCloud\/wash\/archive\/$WASH_VERSION\.tar\.gz"
+          # Modify the formula using temporary files
+          cp ./build/homebrew/Formula/wash.rb ./formula1.rb
+          sed "/\ \ url\ /s/.*/\ \ url\ '$release_tarball_sed'/" formula1.rb > formula2.rb
+          sed "/\ \ sha256\ "/s/.*/\ \ sha256\ '$washsha'/" formula2.rb > formula3.rb
+          # Replace the single quotes with double quotes, replace formula
+          sed -i 's/"/\\"/g' formula3.rb > ./build/homebrew/Formula/wash.rb
+          #TODO: remove debug
+          echo ./build/homebrew/Formula/wash.rb
+          exit 1
+
+      # Test updates
+      - name: Set up Homebrew
+        id: set-up-homebrew
+        uses: Homebrew/actions/setup-homebrew@master
+      - name: Cache Homebrew Bundler RubyGems
+        id: cache
+        uses: actions/cache@v1
+        with:
+          path: ${{ steps.set-up-homebrew.outputs.gems-path }}
+          key: ${{ runner.os }}-rubygems-${{ steps.set-up-homebrew.outputs.gems-hash }}
+          restore-keys: ${{ runner.os }}-rubygems-
+      - name: Install Homebrew Bundler RubyGems
+        if: steps.cache.outputs.cache-hit != 'true'
+        run: brew install-bundler-gems
+      - run: brew test-bot --only-cleanup-before
+      - run: brew test-bot --only-setup
+      - run: brew test-bot --only-tap-syntax
+      - run: brew test-bot --only-formulae
+        if: github.event_name == 'pull_request'
+
+      - name: Upload bottles as artifact
+        if: always() && github.event_name == 'pull_request'
+        uses: actions/upload-artifact@main
+        with:
+          name: bottles
+          path: "*.bottle.*"
+
+      # Prepare for release
+      - name: Set up git
+        uses: Homebrew/actions/git-user-config@master
+
+      - name: Pull bottles
+        env:
+          HOMEBREW_GITHUB_API_TOKEN: ${{ github.token }}
+          HOMEBREW_GITHUB_PACKAGES_TOKEN: ${{ github.token }}
+          HOMEBREW_GITHUB_PACKAGES_USER: ${{ github.actor }}
+          HOMEBREW_NO_INSTALL_FROM_API: 1
+          PULL_REQUEST: ${{ github.event.pull_request.number }}
+        run: brew pr-pull --debug --tap=$GITHUB_REPOSITORY $PULL_REQUEST
+
+      - name: Push commits
+        uses: Homebrew/actions/git-try-push@master
+        with:
+          token: ${{ github.token }}
+          branch: main
+
+      - name: Create Pull Request
+        uses: peter-evans/create-pull-request@v5
+        with:
+          title: Homebrew Release ${{ github.ref_name }}
+          body: This is the Homebrew release for ${{ github.ref_name }}. Please _rebase_ this PR and merge to `main`. If changes are required, please close this PR, make changes, and re-run the "Release homebrew and chocolatey" workflow.
+          branch: homebrew-release/${{ github.ref_name }}
+          signoff: true

build/homebrew/Formula/wash.rb

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+class Wash < Formula
+  desc "WAsmcloud SHell - a comprehensive command-line tool for wasmCloud development"
+  homepage "https://wasmcloud.com"
+  url "https://github.com/wasmCloud/wash/archive/v0.17.3.tar.gz"
+  sha256 "9a5404ef46a38fd531d4cf65569521317b90114e96348e43cf90ec63252214bd"
+  license "Apache-2.0"
+
+  bottle do
+    root_url "https://github.com/wasmCloud/homebrew-wasmcloud/releases/download/wash-0.17.2"
+    sha256 cellar: :any_skip_relocation, big_sur:      "ed03b9e1edbe2fab73032dbb009cba8eddd3e7f769c7fcba8a58beb5ef638028"
+    sha256 cellar: :any_skip_relocation, x86_64_linux: "28a06a6f9c5464c15a0aaf055bb42d0d6f64de67b256b5aee7ebc3ed33ad9986"
+  end
+
+  depends_on "rust"
+
+  on_linux do
+    depends_on "zlib"
+  end
+
+  def install
+    system "cargo", "install", *std_cargo_args
+  end
+
+  test do
+    system "#{bin}/wash", "-V"
+  end
+end

build/homebrew/README.md

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+# wash Homebrew tap
+
+## Using
+
+To use this tap to install wash:
+
+```console
+brew tap wasmcloud/wasmcloud
+brew install wash
+```