Enforce .git in the URL when importing Repo by URL

app/views/projects/_import_project_pane.html.haml

@@ -83,7 +83,7 @@
 
 
   .js-toggle-content.toggle-import-form{ class: ('hide' if active_tab != 'import') }
-    = form_for @project, html: { class: 'new_project' } do |f|
+    = form_for @project, html: { class: 'new_project gl-show-field-errors' } do |f|
       %hr
       = render "shared/import_form", f: f
       = render 'projects/new_project_fields', f: f, project_name_id: "import-url-name", hide_init_with_readme: true, track_label: track_label

app/views/shared/_import_form.html.haml

@@ -6,8 +6,14 @@
     = f.label :import_url, class: 'label-bold' do
       %span
         = _('Git repository URL')
-    = f.text_field :import_url, value: import_url.sanitized_url,
-        autocomplete: 'off', class: 'form-control gl-form-input', placeholder: 'https://gitlab.company.com/group/project.git', required: true
+    = f.text_field :import_url,
+        value: import_url.sanitized_url,
+        autocomplete: 'off',
+        class: 'form-control gl-form-input',
+        placeholder: 'https://gitlab.company.com/group/project.git',
+        required: true,
+        pattern: '(?:git|https?):\/\/.*/.*\.git$',
+        title: _('Please provide a valid URL ending with .git')
 
   .row
     .form-group.col-md-6

changelogs/unreleased/276953-enforce-git-in-the-url-when-importing-repo-by-url.yml

+---
+title: Enforce .git suffix when importing git repo
+merge_request: 61115
+author:
+type: changed

ee/spec/features/projects/new_project_spec.rb

@@ -74,7 +74,7 @@ RSpec.describe 'New project', :js do
         page.within '#import-project-pane' do
           first('.js-import-git-toggle-button').click
 
-          fill_in 'project_import_url', with: 'http://foo.git'
+          fill_in 'project_import_url', with: 'http://foo/bar.git'
           fill_in 'project_name', with: 'import-project-with-features1'
           fill_in 'project_path', with: 'import-project-with-features1'
           choose 'project_visibility_level_20'
@@ -94,7 +94,7 @@ RSpec.describe 'New project', :js do
         page.within '#ci-cd-project-pane' do
           find('.js-import-git-toggle-button').click
 
-          fill_in 'project_import_url', with: 'http://foo.git'
+          fill_in 'project_import_url', with: 'http://foo/bar.git'
           fill_in 'project_name', with: 'CI CD Project1'
           fill_in 'project_path', with: 'ci-cd-project1'
           choose 'project_visibility_level_20'

locale/gitlab.pot

@@ -24322,6 +24322,9 @@ msgstr ""
 msgid "Please provide a valid URL"
 msgstr ""
 
+msgid "Please provide a valid URL ending with .git"
+msgstr ""
+
 msgid "Please provide a valid YouTube URL or ID"
 msgstr ""
 

spec/features/projects/new_project_spec.rb

@@ -355,6 +355,16 @@ RSpec.describe 'New project', :js do
           expect(git_import_instructions).to have_content 'Git repository URL'
         end
 
+        it 'reports error if repo URL does not end with .git' do
+          fill_in 'project_import_url', with: 'http://foo/bar'
+          fill_in 'project_name', with: 'import-project-without-git-suffix'
+          fill_in 'project_path', with: 'import-project-without-git-suffix'
+
+          click_button 'Create project'
+
+          expect(page).to have_text('Please provide a valid URL ending with .git')
+        end
+
         it 'keeps "Import project" tab open after form validation error' do
           collision_project = create(:project, name: 'test-name-collision', namespace: user.namespace)