Remove project-specific elements from integrations

Some integrations do not display properly on the
instance-level because the views are dependent on
some project-specifiic code.

This replaces some of the copy and code with more
generic terms to allow these services to be setup on
the instane level as well.

app/models/project_services/alerts_service.rb

@@ -15,6 +15,10 @@ class AlertsService < Service
   before_validation :ensure_token, if: :activated?
 
   def url
+    if instance? || template?
+      return '<namespace / project>'
+    end
+
     url_helpers.project_alerts_notify_url(project, format: :json)
   end
 

app/views/projects/services/mattermost_slash_commands/_detailed_help.html.haml

-- run_actions_text = s_("ProjectService|Perform common operations on GitLab project: %{project_name}") % { project_name: @project.full_name }
+- pretty_name = defined?(@project) ? @project.full_name : _('<project name / alias>')
+- run_actions_text = s_("ProjectService|Perform common operations on GitLab project: %{project_name}") % { project_name: pretty_name }
 
 %p= s_("ProjectService|To set up this service:")
 %ul.list-unstyled.indent-list
@@ -20,7 +21,7 @@
   .form-group
     = label_tag :display_name, _('Display name'), class: 'col-12 col-form-label label-bold'
     .col-12.input-group
-      = text_field_tag :display_name, "GitLab / #{@project.full_name}", class: 'form-control form-control-sm', readonly: 'readonly'
+      = text_field_tag :display_name, "GitLab / #{pretty_name}", class: 'form-control form-control-sm', readonly: 'readonly'
       .input-group-append
         = clipboard_button(target: '#display_name', class: 'input-group-text')
 
@@ -38,8 +39,9 @@
       %p
         = s_('MattermostService|Suggestions:')
         %code= 'gitlab'
-        %code= @project.path # Path contains no spaces, but dashes
-        %code= @project.full_path
+        - if @project
+          %code= @project.path # Path contains no spaces, but dashes
+          %code= @project.full_path
 
   .form-group
     = label_tag :request_url, s_('MattermostService|Request URL'), class: 'col-12 col-form-label label-bold'

app/views/projects/services/slack_slash_commands/_help.html.haml

-- pretty_name = defined?(@project) ? @project.full_name : 'namespace / path'
-- run_actions_text = "Perform common operations on GitLab project: #{pretty_name}"
+- pretty_name = defined?(@project) ? @project.full_name : _('<project name / alias>')
+- run_actions_text = s_("ProjectService|Perform common operations on GitLab project: %{project_name}") % { project_name: pretty_name }
 
 .info-well
   .well-segment
@@ -31,8 +31,10 @@
             %p
               = _("Suggestions:")
               %code= 'gitlab'
-              %code= @project.path # Path contains no spaces, but dashes
-              %code= @project.full_path
+              %code= 'project'
+              - if @project
+                %code= @project.path # Path contains no spaces, but dashes
+                %code= @project.full_path
 
         .form-group
           = label_tag :url, 'URL', class: 'col-12 col-form-label label-bold'

changelogs/unreleased/210528-fix-broken-links-in-some-instance-level-integrations.yml

+---
+title: Fix broken links in some Instance-level integrations
+merge_request: 27298
+author:
+type: fixed

ee/app/views/projects/services/gitlab_slack_application/_help.html.haml

@@ -9,5 +9,5 @@
     See the list of available commands in Slack after setting up this service
     by entering
   %kbd.inline /gitlab help
-  - unless @service.template?
+  - unless @service.template? || @service.instance?
     = render "projects/services/#{@service.to_param}/slack_integration_form"

locale/gitlab.pot

@@ -784,6 +784,9 @@ msgstr ""
 msgid "<no scopes selected>"
 msgstr ""
 
+msgid "<project name / alias>"
+msgstr ""
+
 msgid "<strong>%{group_name}</strong> group members"
 msgstr ""