add homebrew support

Author: alexei-led

brew/template.rb

@@ -0,0 +1,15 @@
+class Codefresh < Formula
+    desc "Codefresh CLI provides a full and flexible interface to interact with Codefresh."
+    homepage "http://cli.codefresh.io"
+    url "https://github.com/codefresh-io/cli/releases/download/{{ VERSION }}/codefresh-{{ VERSION }}-macos-x64.tar.gz"
+    version "{{ VERSION }}"
+    sha256 "{{ SHA256 }}"
+  
+    def install
+      bin.install "codefresh"
+    end
+  
+    test do
+      system "#{bin}/codefresh version"
+    end
+  end

codefresh-brew.yml

@@ -0,0 +1,38 @@
+version: '1.0'
+
+steps:
+
+  # fail_if_not_master:
+  #   title: "Validate running on master branch"
+  #   image: codefresh/cli-build
+  #   commands:
+  #     - 'echo This pipeline should be run only on master'
+  #     - 'exit 1'
+  #   when:
+  #     branch:
+  #       ignore: [ master ]
+
+  extract_version:
+    title: "Exporting package.json version"
+    image: codefresh/cli-build
+    commands:
+      - 'export VERSION=v$(jq -r ".version" package.json)'
+      - "echo Codefresh CLI version: $VERSION"
+      - "cf_export VERSION"
+  
+  update_brew_formula:
+    title: "Updating homebrew formula"
+    image: codefresh/cli-build
+    commands:
+      - curl -L https://github.com/codefresh-io/cli/releases/download/${{VERSION}}/codefresh-${{VERSION}}-macos-x64.tar.gz > ${{VERSION}}.tar.gz
+      - echo "compute SHA256 ..."
+      - SHA256="$(shasum -a 256 ./${{VERSION}}.tar.gz | awk '{print $1}')"
+      - echo "generate file from template ..."
+      - sed -e "s/{{ VERSION }}/${{VERSION}}/g" -e "s/{{ SHA256 }}/$SHA256/g" ./brew/template.rb > codefresh.rb
+      - echo "Updating file in GitHub"
+      - |
+        curl -v -i -X PUT -H 'Authorization: token '${{GITHUB_TOKEN}}'' -d "{ \
+          \"message\": \"update formula version ${{VERSION}}\", \
+          \"content\": \"$(openssl base64 -A -in codefresh.rb)\", \
+          \"sha\": $(curl -X GET https://api.github.com/repos/codefresh-io/homebrew-cli/contents/Formula/codefresh.rb | jq .sha) \
+          }" https://api.github.com/repos/codefresh-io/homebrew-cli/contents/Formula/codefresh.rb