Merge branch 'github-rake-task-rate-limiting' into 'master'

Add GitHub enterprise support to the GitHub Rake task and better handle rate limiting being disabled

See merge request gitlab-org/gitlab-ce!15284

(cherry picked from commit 760b2c75ef9d2c6acb655860dceae4c04cd8e5a7)

48cb1c50 Restore GH enterprise support in the Rake task
f37fe2ed Support importing GH projects without rate limits

3 files changed, 36 insertions, 3 deletions

diff --git a/lib/gitlab/github_import/client.rb b/lib/gitlab/github_import/client.rb
index c1c338487a7..5da9befa08e 100644
--- a/lib/gitlab/github_import/client.rb
+++ b/lib/gitlab/github_import/client.rb
@@ -129,6 +129,8 @@ module Gitlab
       # whether we are running in parallel mode or not. For more information see
       # `#rate_or_wait_for_rate_limit`.
       def with_rate_limit
+        return yield unless rate_limiting_enabled?
+
         request_count_counter.increment
 
         raise_or_wait_for_rate_limit unless requests_remaining?
@@ -170,6 +172,10 @@ module Gitlab
         octokit.rate_limit.resets_in + 5
       end
 
+      def rate_limiting_enabled?
+        @rate_limiting_enabled ||= api_endpoint.include?('.github.com')
+      end
+
       def api_endpoint
         custom_api_endpoint || default_api_endpoint
       end
diff --git a/lib/tasks/import.rake b/lib/tasks/import.rake
index 943cbe6d80c..aafbe52e5f8 100644
--- a/lib/tasks/import.rake
+++ b/lib/tasks/import.rake
@@ -101,8 +101,8 @@ end
 
 class GithubRepos
   def initialize(token, current_user, github_repo)
-    @client = Octokit::Client
-      .new(access_token: token, auto_paginate: true, per_page: 100)
+    @client = Gitlab::GithubImport::Client.new(token)
+    @client.octokit.auto_paginate = true
 
     @current_user = current_user
     @github_repo = github_repo
@@ -130,7 +130,7 @@ class GithubRepos
   end
 
   def repos
-    @client.list_repositories
+    @client.octokit.list_repositories
   end
 end
 
diff --git a/spec/lib/gitlab/github_import/client_spec.rb b/spec/lib/gitlab/github_import/client_spec.rb
index 9cbd9bcc14e..5b2642d9473 100644
--- a/spec/lib/gitlab/github_import/client_spec.rb
+++ b/spec/lib/gitlab/github_import/client_spec.rb
@@ -185,6 +185,17 @@ describe Gitlab::GithubImport::Client do
 
       client.with_rate_limit { }
     end
+
+    it 'ignores rate limiting when disabled' do
+      expect(client)
+        .to receive(:rate_limiting_enabled?)
+        .and_return(false)
+
+      expect(client)
+        .not_to receive(:requests_remaining?)
+
+      expect(client.with_rate_limit { 10 }).to eq(10)
+    end
   end
 
   describe '#requests_remaining?' do
@@ -362,4 +373,20 @@ describe Gitlab::GithubImport::Client do
       end
     end
   end
+
+  describe '#rate_limiting_enabled?' do
+    let(:client) { described_class.new('foo') }
+
+    it 'returns true when using GitHub.com' do
+      expect(client.rate_limiting_enabled?).to eq(true)
+    end
+
+    it 'returns false for GitHub enterprise installations' do
+      expect(client)
+        .to receive(:api_endpoint)
+        .and_return('https://github.kittens.com/')
+
+      expect(client.rate_limiting_enabled?).to eq(false)
+    end
+  end
 end