Add e2e test of push over SSH over Git protocol v2ml-qa-git-protocol-v2-spec

Adds a new end-to-end test to check that Git protocol v2 can be used to
push over SSH.

Includes a change in Git::Repository to use Runtime::Env.debug? to
enable logging instead of .verbose?

1 files changed, 24 insertions, 2 deletions

diff --git a/qa/qa/git/repository.rb b/qa/qa/git/repository.rb
index 27a88534258..7f959441dac 100644
--- a/qa/qa/git/repository.rb
+++ b/qa/qa/git/repository.rb
@@ -109,6 +109,28 @@ module QA
         known_hosts_file.close(true)
       end
 
+      def push_with_git_protocol(version, file_name, file_content, commit_message = 'Initial commit')
+        self.git_protocol = version
+        add_file(file_name, file_content)
+        commit(commit_message)
+        push_changes
+
+        fetch_supported_git_protocol
+      end
+
+      def git_protocol=(value)
+        raise ArgumentError, "Please specify the protocol you would like to use: 0, 1, or 2" unless %w[0 1 2].include?(value.to_s)
+
+        run("git config protocol.version #{value}")
+      end
+
+      def fetch_supported_git_protocol
+        # ls-remote is one command known to respond to Git protocol v2 so we use
+        # it to get output including the version reported via Git tracing
+        output = run("git ls-remote #{uri}", "GIT_TRACE_PACKET=1")
+        output[/git< version (\d+)/, 1] || 'unknown'
+      end
+
       private
 
       attr_reader :uri, :username, :password, :known_hosts_file, :private_key_file
@@ -117,8 +139,8 @@ module QA
         !private_key_file.nil?
       end
 
-      def run(command_str)
-        command = [env_vars, command_str, '2>&1'].compact.join(' ')
+      def run(command_str, *extra_env)
+        command = [env_vars, *extra_env, command_str, '2>&1'].compact.join(' ')
         Runtime::Logger.debug "Git: command=[#{command}]"
 
         output, _ = Open3.capture2(command)