Remove `gitaly.client_path` and fix config.toml

This removes unused `gitaly.client_path` and fixes
a source installation of gitaly to reflect a specified
path in a `rake "gitlab:gitaly:install[/home/git/gitaly2,...]"`

config/gitlab.yml.example

@@ -1089,8 +1089,6 @@ production: &base
 
   # Gitaly settings
   gitaly:
-    # Path to the directory containing Gitaly client executables.
-    client_path: /home/git/gitaly
     # Default Gitaly authentication token. Can be overridden per storage. Can
     # be left blank when Gitaly is running locally on a Unix socket, which
     # is the normal way to deploy Gitaly.

lib/gitlab/git/remote_repository.rb

@@ -53,23 +53,6 @@ module Gitlab
           gitaly_repository.relative_path == other_repository.relative_path
       end
 
-      def fetch_env
-        gitaly_ssh = File.absolute_path(File.join(Gitlab.config.gitaly.client_path, 'gitaly-ssh'))
-        gitaly_address = gitaly_client.address(storage)
-        gitaly_token = gitaly_client.token(storage)
-
-        request = Gitaly::SSHUploadPackRequest.new(repository: gitaly_repository)
-        env = {
-          'GITALY_ADDRESS' => gitaly_address,
-          'GITALY_PAYLOAD' => request.to_json,
-          'GITALY_WD' => Dir.pwd,
-          'GIT_SSH_COMMAND' => "#{gitaly_ssh} upload-pack"
-        }
-        env['GITALY_TOKEN'] = gitaly_token if gitaly_token.present?
-
-        env
-      end
-
       def path
         @repository.path
       end

lib/gitlab/setup_helper.rb

@@ -129,7 +129,7 @@ module Gitlab
 
           config[:'gitaly-ruby'] = { dir: File.join(gitaly_dir, 'ruby') } if gitaly_ruby
           config[:'gitlab-shell'] = { dir: Gitlab.config.gitlab_shell.path }
-          config[:bin_dir] = Gitlab.config.gitaly.client_path
+          config[:bin_dir] = File.join(gitaly_dir, '_build', 'bin') # binaries by default are in `_build/bin`
           config[:gitlab] = { url: Gitlab.config.gitlab.url }
           config[:logging] = { dir: Rails.root.join('log').to_s }
 

spec/lib/gitlab/git/remote_repository_spec.rb

@@ -58,45 +58,4 @@ RSpec.describe Gitlab::Git::RemoteRepository, :seed_helper do
       it { expect(subject.same_repository?(other_repository)).to eq(result) }
     end
   end
-
-  describe '#fetch_env' do
-    let(:remote_repository) { described_class.new(repository) }
-
-    let(:gitaly_client) { double(:gitaly_client) }
-    let(:address) { 'fake-address' }
-    let(:token) { 'fake-token' }
-
-    subject { remote_repository.fetch_env }
-
-    before do
-      allow(remote_repository).to receive(:gitaly_client).and_return(gitaly_client)
-
-      expect(gitaly_client).to receive(:address).with(repository.storage).and_return(address)
-      expect(gitaly_client).to receive(:token).with(repository.storage).and_return(token)
-    end
-
-    it { expect(subject).to be_a(Hash) }
-    it { expect(subject['GITALY_ADDRESS']).to eq(address) }
-    it { expect(subject['GITALY_TOKEN']).to eq(token) }
-    it { expect(subject['GITALY_WD']).to eq(Dir.pwd) }
-
-    it 'creates a plausible GIT_SSH_COMMAND' do
-      git_ssh_command = subject['GIT_SSH_COMMAND']
-
-      expect(git_ssh_command).to start_with('/')
-      expect(git_ssh_command).to end_with('/gitaly-ssh upload-pack')
-    end
-
-    it 'creates a plausible GITALY_PAYLOAD' do
-      req = Gitaly::SSHUploadPackRequest.decode_json(subject['GITALY_PAYLOAD'])
-
-      expect(remote_repository.gitaly_repository).to eq(req.repository)
-    end
-
-    context 'when the token is blank' do
-      let(:token) { '' }
-
-      it { expect(subject.keys).not_to include('GITALY_TOKEN') }
-    end
-  end
 end