Fix Slash command templates

These templates were broken, as the same views didn't have a @project
defined. Now I've added checks on the service being a template or not.

Fixes #26042

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

@@ -8,8 +8,8 @@
   by entering
   %code /<command_trigger_word> help
 
-  - unless enabled
+  - unless enabled || @service.template?
     = render 'projects/services/mattermost_slash_commands/detailed_help', subject: @service
 
-- if enabled
+- if enabled && !@service.template?
   = render 'projects/services/mattermost_slash_commands/installation_info', subject: @service

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

-- run_actions_text = "Perform common operations on this project: #{@project.name_with_namespace}"
+- pretty_name = defined?(@project) ? @project.path_with_namespace : "namespace / path"
+- run_actions_text = "Perform common operations on this project: #{pretty_name}"
 
 .well
   This service allows GitLab users to perform common operations on this
@@ -9,85 +10,86 @@
   %code /<command> help
   %br
   %br
-  To setup this service:
-  %ul.list-unstyled
-    %li
-      1.
-      = link_to 'Add a slash command', 'https://my.slack.com/services/new/slash-commands'
-      in your Slack team with these options:
+  - unless @service.template?
+    To setup this service:
+    %ul.list-unstyled
+      %li
+        1.
+        = link_to 'Add a slash command', 'https://my.slack.com/services/new/slash-commands'
+        in your Slack team with these options:
 
-  %hr
+    %hr
 
-  .help-form
-    .form-group
-      = label_tag nil, 'Command', class: 'col-sm-2 col-xs-12 control-label'
-      .col-sm-10.col-xs-12.text-block
-        %p Fill in the word that works best for your team.
-        %p
-          Suggestions:
-          %code= 'gitlab'
-          %code= @project.path # Path contains no spaces, but dashes
-          %code= @project.path_with_namespace
+    .help-form
+      .form-group
+        = label_tag nil, 'Command', class: 'col-sm-2 col-xs-12 control-label'
+        .col-sm-10.col-xs-12.text-block
+          %p Fill in the word that works best for your team.
+          %p
+            Suggestions:
+            %code= 'gitlab'
+            %code= @project.path # Path contains no spaces, but dashes
+            %code= @project.path_with_namespace
 
-    .form-group
-      = label_tag :url, 'URL', class: 'col-sm-2 col-xs-12 control-label'
-      .col-sm-10.col-xs-12.input-group
-        = text_field_tag :url, service_trigger_url(subject), class: 'form-control input-sm', readonly: 'readonly'
-        .input-group-btn
-          = clipboard_button(clipboard_target: '#url')
+      .form-group
+        = label_tag :url, 'URL', class: 'col-sm-2 col-xs-12 control-label'
+        .col-sm-10.col-xs-12.input-group
+          = text_field_tag :url, service_trigger_url(subject), class: 'form-control input-sm', readonly: 'readonly'
+          .input-group-btn
+            = clipboard_button(clipboard_target: '#url')
 
-    .form-group
-      = label_tag nil, 'Method', class: 'col-sm-2 col-xs-12 control-label'
-      .col-sm-10.col-xs-12.text-block POST
+      .form-group
+        = label_tag nil, 'Method', class: 'col-sm-2 col-xs-12 control-label'
+        .col-sm-10.col-xs-12.text-block POST
 
-    .form-group
-      = label_tag :customize_name, 'Customize name', class: 'col-sm-2 col-xs-12 control-label'
-      .col-sm-10.col-xs-12.input-group
-        = text_field_tag :customize_name, 'GitLab', class: 'form-control input-sm', readonly: 'readonly'
-        .input-group-btn
-          = clipboard_button(clipboard_target: '#customize_name')
+      .form-group
+        = label_tag :customize_name, 'Customize name', class: 'col-sm-2 col-xs-12 control-label'
+        .col-sm-10.col-xs-12.input-group
+          = text_field_tag :customize_name, 'GitLab', class: 'form-control input-sm', readonly: 'readonly'
+          .input-group-btn
+            = clipboard_button(clipboard_target: '#customize_name')
 
-    .form-group
-      = label_tag nil, 'Customize icon', class: 'col-sm-2 col-xs-12 control-label'
-      .col-sm-10.col-xs-12.text-block
-        = image_tag(asset_url('slash-command-logo.png'), width: 36, height: 36)
-        = link_to('Download image', asset_url('gitlab_logo.png'), class: 'btn btn-sm', target: '_blank')
+      .form-group
+        = label_tag nil, 'Customize icon', class: 'col-sm-2 col-xs-12 control-label'
+        .col-sm-10.col-xs-12.text-block
+          = image_tag(asset_url('slash-command-logo.png'), width: 36, height: 36)
+          = link_to('Download image', asset_url('gitlab_logo.png'), class: 'btn btn-sm', target: '_blank')
 
-    .form-group
-      = label_tag nil, 'Autocomplete', class: 'col-sm-2 col-xs-12 control-label'
-      .col-sm-10.col-xs-12.text-block Show this command in the autocomplete list
+      .form-group
+        = label_tag nil, 'Autocomplete', class: 'col-sm-2 col-xs-12 control-label'
+        .col-sm-10.col-xs-12.text-block Show this command in the autocomplete list
 
-    .form-group
-      = label_tag :autocomplete_description, 'Autocomplete description', class: 'col-sm-2 col-xs-12 control-label'
-      .col-sm-10.col-xs-12.input-group
-        = text_field_tag :autocomplete_description, run_actions_text, class: 'form-control input-sm', readonly: 'readonly'
-        .input-group-btn
-          = clipboard_button(clipboard_target: '#autocomplete_description')
+      .form-group
+        = label_tag :autocomplete_description, 'Autocomplete description', class: 'col-sm-2 col-xs-12 control-label'
+        .col-sm-10.col-xs-12.input-group
+          = text_field_tag :autocomplete_description, run_actions_text, class: 'form-control input-sm', readonly: 'readonly'
+          .input-group-btn
+            = clipboard_button(clipboard_target: '#autocomplete_description')
 
-    .form-group
-      = label_tag :autocomplete_usage_hint, 'Autocomplete usage hint', class: 'col-sm-2 col-xs-12 control-label'
-      .col-sm-10.col-xs-12.input-group
-        = text_field_tag :autocomplete_usage_hint, '[help]', class: 'form-control input-sm', readonly: 'readonly'
-        .input-group-btn
-          = clipboard_button(clipboard_target: '#autocomplete_usage_hint')
+      .form-group
+        = label_tag :autocomplete_usage_hint, 'Autocomplete usage hint', class: 'col-sm-2 col-xs-12 control-label'
+        .col-sm-10.col-xs-12.input-group
+          = text_field_tag :autocomplete_usage_hint, '[help]', class: 'form-control input-sm', readonly: 'readonly'
+          .input-group-btn
+            = clipboard_button(clipboard_target: '#autocomplete_usage_hint')
 
-    .form-group
-      = label_tag :descriptive_label, 'Descriptive label', class: 'col-sm-2 col-xs-12 control-label'
-      .col-sm-10.col-xs-12.input-group
-        = text_field_tag :descriptive_label, 'Perform common operations on GitLab project', class: 'form-control input-sm', readonly: 'readonly'
-        .input-group-btn
-          = clipboard_button(clipboard_target: '#descriptive_label')
+      .form-group
+        = label_tag :descriptive_label, 'Descriptive label', class: 'col-sm-2 col-xs-12 control-label'
+        .col-sm-10.col-xs-12.input-group
+          = text_field_tag :descriptive_label, 'Perform common operations on GitLab project', class: 'form-control input-sm', readonly: 'readonly'
+          .input-group-btn
+            = clipboard_button(clipboard_target: '#descriptive_label')
 
-  %hr
+    %hr
 
-  %ul.list-unstyled
-    %li
-      2. Paste the
-      %strong Token
-      into the field below
-    %li
-      3. Select the
-      %strong Active
-      checkbox, press
-      %strong Save changes
-      and start using GitLab inside Slack!
+    %ul.list-unstyled
+      %li
+        2. Paste the
+        %strong Token
+        into the field below
+      %li
+        3. Select the
+        %strong Active
+        checkbox, press
+        %strong Save changes
+        and start using GitLab inside Slack!