Modify install.sh script to output message,

redirecting user to Migrate web page for instructions.

CHANGELOG.md

@@ -0,0 +1,3 @@
+Version 0.9.0
+------
+* Initial test release of gem-based CLI

RELEASING.md

@@ -0,0 +1,51 @@
+## Releasing Shopify CLI
+
+1. Check the Semantic Versioning page for info on how to version the new release: http://semver.org
+
+2. Create a branch named `release_X_Y_Z` (replacing `X_Y_Z` with the intended release version)
+   ```
+   $ git checkout -b release_X_Y_Z
+   ```
+
+3. Update the version of Shopify CLI in `lib/shopify-cli/version.rb`
+
+4. Add an entry for the new release to `CHANGELOG.md`
+
+5. Commit the changes with a commit message like "Packaging for release X.Y.Z"
+   ```
+   $ git commit -am "Packaging for release X.Y.Z"
+   ```
+
+6. Push out the changes
+   ```
+   $ git push -u origin release_X_Y_Z
+   ```
+
+7. Open a PR for the branch, get necessary approvals from code owners and merge into main branch
+
+8. Deploy using Shipit
+
+9. On local machine and _AFTER_ gem has been published to https://rubygems.org, run
+   ```
+   $ rake package
+   ```
+   This will generate the `.deb`, `.rpm` and brew formula files, which will be located in `packaging/builds/X.Y.Z/`.
+
+10. Clone the `Shopify/homebrew-shopify` repository (if not already cloned), and then
+    * create a branch named `release_X_Y_Z_of_shopify-cli`
+    * update the brew formula in `shopify-cli.rb` with the generated formula in `packaging/builds/X.Y.Z/` in the `Shopify/shopify-app-cli` repo (from step 9)
+    * commit the change and create a PR
+    * when PR is approved, merge into main branch of `Shopify/homebrew-shopify` repository
+
+11. Go to [releases](https://github.com/Shopify/shopify-app-cli/releases) page of `Shopify/shopify-app-cli` repo and create a new release:
+    * use the tag created in step 8 by Shipit (should be "vX.Y.Z")
+    * release title = "Version X.Y.Z"
+    * description should be 
+      ```
+      Release of version X.Y.Z of Shopify App CLI
+    
+      Please refer to [CHANGELOG](https://github.com/Shopify/shopify-app-cli/blob/master/CHANGELOG.md) for details.
+      ```
+    * upload the `.deb` and `.rpm` files from `packaging/builds/X.Y.Z/` (generated in step 9)
+    * if it's a pre-release version, select the "This is a pre-release" checkbox
+    * and click "Publish release".

Rakefile

@@ -1,6 +1,7 @@
 require_relative 'bin/load_shopify'
 require 'rake/testtask'
 require 'rubocop/rake_task'
+require 'bundler/gem_tasks'
 
 Rake::TestTask.new do |t|
   t.libs += %w(test)
@@ -75,11 +76,6 @@ namespace :package do
 
   task all: [:debian, :rpm, :homebrew]
 
-  desc("Builds a gem of the CLI")
-  task :gem do
-    ShopifyCli::Packager.new.build_gem
-  end
-
   desc("Builds a Debian package of the CLI")
   task :debian do
     ShopifyCli::Packager.new.build_debian
@@ -91,7 +87,7 @@ namespace :package do
   end
 
   desc("Builds a Homebrew package of the CLI")
-  task :homebrew => :"package:gem" do
+  task :homebrew do
     ShopifyCli::Packager.new.build_homebrew
   end
 end