Merge #7127

7127: Add git and branch options to `bundle add` r=deivid-rodriguez a=tokachev

Closes #6841 These changes will allow to add a gem with the git or branch options.

```
bundle add redis --git "https://github.com/redis/redis-rb" --branch "staging"
```

The result in Gemfile will be: 
```
gem "redis", "~> 4.0", :git => "https://github.com/redis/redis-rb", :branch => "staging"
```

Co-authored-by: Baumgarten <baumgarten@localhost.localdomain>

1 files changed, 3 insertions, 1 deletions

diff --git a/lib/bundler/dependency.rb b/lib/bundler/dependency.rb
index e76c2bc08e..0d588bc892 100644
--- a/lib/bundler/dependency.rb
+++ b/lib/bundler/dependency.rb
@@ -7,7 +7,7 @@ require_relative "rubygems_ext"
 module Bundler
   class Dependency < Gem::Dependency
     attr_reader :autorequire
-    attr_reader :groups, :platforms, :gemfile
+    attr_reader :groups, :platforms, :gemfile, :git, :branch
 
     PLATFORM_MAP = {
       :ruby     => Gem::Platform::RUBY,
@@ -84,6 +84,8 @@ module Bundler
       @autorequire    = nil
       @groups         = Array(options["group"] || :default).map(&:to_sym)
       @source         = options["source"]
+      @git            = options["git"]
+      @branch         = options["branch"]
       @platforms      = Array(options["platforms"])
       @env            = options["env"]
       @should_include = options.fetch("should_include", true)