Merge branch 'graphql-tree' into 'master'

Added repository files to GraphQL API

See merge request gitlab-org/gitlab-ce!28325

9 files changed, 113 insertions, 0 deletions

diff --git a/app/graphql/resolvers/tree_resolver.rb b/app/graphql/resolvers/tree_resolver.rb
new file mode 100644
index 00000000000..5aad1c71b40
--- /dev/null
+++ b/app/graphql/resolvers/tree_resolver.rb
@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+module Resolvers
+  class TreeResolver < BaseResolver
+    argument :path, GraphQL::STRING_TYPE,
+              required: false,
+              default_value: '',
+              description: 'The path to get the tree for. Default value is the root of the repository'
+    argument :ref, GraphQL::STRING_TYPE,
+              required: false,
+              default_value: :head,
+              description: 'The commit ref to get the tree for. Default value is HEAD'
+    argument :recursive, GraphQL::BOOLEAN_TYPE,
+              required: false,
+              default_value: false,
+              description: 'Used to get a recursive tree. Default is false'
+
+    alias_method :repository, :object
+
+    def resolve(**args)
+      return unless repository.exists?
+
+      repository.tree(args[:ref], args[:path], recursive: args[:recursive])
+    end
+  end
+end
diff --git a/app/graphql/types/project_type.rb b/app/graphql/types/project_type.rb
index baea6658e05..06a1aab09f6 100644
--- a/app/graphql/types/project_type.rb
+++ b/app/graphql/types/project_type.rb
@@ -69,6 +69,8 @@ module Types
     field :namespace, Types::NamespaceType, null: false
     field :group, Types::GroupType, null: true
 
+    field :repository, Types::RepositoryType, null: false
+
     field :merge_requests,
           Types::MergeRequestType.connection_type,
           null: true,
diff --git a/app/graphql/types/repository_type.rb b/app/graphql/types/repository_type.rb
new file mode 100644
index 00000000000..5987467e1ea
--- /dev/null
+++ b/app/graphql/types/repository_type.rb
@@ -0,0 +1,14 @@
+# frozen_string_literal: true
+
+module Types
+  class RepositoryType < BaseObject
+    graphql_name 'Repository'
+
+    authorize :download_code
+
+    field :root_ref, GraphQL::STRING_TYPE, null: true
+    field :empty, GraphQL::BOOLEAN_TYPE, null: false, method: :empty?
+    field :exists, GraphQL::BOOLEAN_TYPE, null: false, method: :exists?
+    field :tree, Types::Tree::TreeType, null: true, resolver: Resolvers::TreeResolver
+  end
+end
diff --git a/app/graphql/types/tree/blob_type.rb b/app/graphql/types/tree/blob_type.rb
new file mode 100644
index 00000000000..230624201b0
--- /dev/null
+++ b/app/graphql/types/tree/blob_type.rb
@@ -0,0 +1,10 @@
+# frozen_string_literal: true
+module Types
+  module Tree
+    class BlobType < BaseObject
+      implements Types::Tree::EntryType
+
+      graphql_name 'Blob'
+    end
+  end
+end
diff --git a/app/graphql/types/tree/entry_type.rb b/app/graphql/types/tree/entry_type.rb
new file mode 100644
index 00000000000..d8e8642ddb8
--- /dev/null
+++ b/app/graphql/types/tree/entry_type.rb
@@ -0,0 +1,14 @@
+# frozen_string_literal: true
+module Types
+  module Tree
+    module EntryType
+      include Types::BaseInterface
+
+      field :id, GraphQL::ID_TYPE, null: false
+      field :name, GraphQL::STRING_TYPE, null: false
+      field :type, Tree::TypeEnum, null: false
+      field :path, GraphQL::STRING_TYPE, null: false
+      field :flat_path, GraphQL::STRING_TYPE, null: false
+    end
+  end
+end
diff --git a/app/graphql/types/tree/submodule_type.rb b/app/graphql/types/tree/submodule_type.rb
new file mode 100644
index 00000000000..cea76dbfd2a
--- /dev/null
+++ b/app/graphql/types/tree/submodule_type.rb
@@ -0,0 +1,10 @@
+# frozen_string_literal: true
+module Types
+  module Tree
+    class SubmoduleType < BaseObject
+      implements Types::Tree::EntryType
+
+      graphql_name 'Submodule'
+    end
+  end
+end
diff --git a/app/graphql/types/tree/tree_entry_type.rb b/app/graphql/types/tree/tree_entry_type.rb
new file mode 100644
index 00000000000..d5cfb898aea
--- /dev/null
+++ b/app/graphql/types/tree/tree_entry_type.rb
@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+module Types
+  module Tree
+    class TreeEntryType < BaseObject
+      implements Types::Tree::EntryType
+
+      graphql_name 'TreeEntry'
+      description 'Represents a directory'
+    end
+  end
+end
diff --git a/app/graphql/types/tree/tree_type.rb b/app/graphql/types/tree/tree_type.rb
new file mode 100644
index 00000000000..1eb6c43972e
--- /dev/null
+++ b/app/graphql/types/tree/tree_type.rb
@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+module Types
+  module Tree
+    class TreeType < BaseObject
+      graphql_name 'Tree'
+
+      field :trees, Types::Tree::TreeEntryType.connection_type, null: false
+      field :submodules, Types::Tree::SubmoduleType.connection_type, null: false
+      field :blobs, Types::Tree::BlobType.connection_type, null: false
+    end
+  end
+end
diff --git a/app/graphql/types/tree/type_enum.rb b/app/graphql/types/tree/type_enum.rb
new file mode 100644
index 00000000000..6560d91e9e5
--- /dev/null
+++ b/app/graphql/types/tree/type_enum.rb
@@ -0,0 +1,14 @@
+# frozen_string_literal: true
+
+module Types
+  module Tree
+    class TypeEnum < BaseEnum
+      graphql_name 'EntryType'
+      description 'Type of a tree entry'
+
+      value 'tree', value: :tree
+      value 'blob', value: :blob
+      value 'commit', value: :commit
+    end
+  end
+end