Expose blob mode in GraphQL for repository files

app/assets/javascripts/repository/queries/getFiles.query.graphql

@@ -45,6 +45,7 @@ query getFiles(
           edges {
             node {
               ...TreeEntry
+              mode
               webUrl
               lfsOid
             }

app/graphql/types/tree/blob_type.rb

@@ -17,6 +17,8 @@ module Types
             resolve: -> (blob, args, ctx) do
               Gitlab::Graphql::Loaders::BatchLfsOidLoader.new(blob.repository, blob.id).find
             end
+      field :mode, GraphQL::STRING_TYPE, null: true,
+            description: 'Blob mode in numeric format'
       # rubocop: enable Graphql/AuthorizeTypes
     end
   end

changelogs/unreleased/symlink-icon-graphql-file-mode.yml

+---
+title: Expose blob mode in GraphQL for repository files
+merge_request: 36488
+author:
+type: other

doc/api/graphql/reference/gitlab_schema.graphql

@@ -793,6 +793,11 @@ type Blob implements Entry {
   """
   lfsOid: String
 
+  """
+  Blob mode in numeric format
+  """
+  mode: String
+
   """
   Name of the entry
   """

doc/api/graphql/reference/gitlab_schema.json

@@ -2056,6 +2056,20 @@
               "isDeprecated": false,
               "deprecationReason": null
             },
+            {
+              "name": "mode",
+              "description": "Blob mode in numeric format",
+              "args": [
+
+              ],
+              "type": {
+                "kind": "SCALAR",
+                "name": "String",
+                "ofType": null
+              },
+              "isDeprecated": false,
+              "deprecationReason": null
+            },
             {
               "name": "name",
               "description": "Name of the entry",

doc/api/graphql/reference/index.md

@@ -160,6 +160,7 @@ Autogenerated return type of AwardEmojiToggle
 | `flatPath` | String! | Flat path of the entry |
 | `id` | ID! | ID of the entry |
 | `lfsOid` | String | LFS ID of the blob |
+| `mode` | String | Blob mode in numeric format |
 | `name` | String! | Name of the entry |
 | `path` | String! | Path of the entry |
 | `sha` | String! | Last commit sha for the entry |

spec/graphql/types/tree/blob_type_spec.rb

@@ -5,5 +5,5 @@ require 'spec_helper'
 RSpec.describe Types::Tree::BlobType do
   specify { expect(described_class.graphql_name).to eq('Blob') }
 
-  specify { expect(described_class).to have_graphql_fields(:id, :sha, :name, :type, :path, :flat_path, :web_url, :lfs_oid) }
+  specify { expect(described_class).to have_graphql_fields(:id, :sha, :name, :type, :path, :flat_path, :web_url, :lfs_oid, :mode) }
 end