Added haml-lint and fix warnings (#2773)

* add haml_lint to Gemfile

* add .haml-lint.yml

* fix warnings of haml_lint

app/views/stream_entries/_detailed_status.html.haml

@@ -1,7 +1,7 @@
 .detailed-status.light
   = link_to TagManager.instance.url_for(status.account), class: 'detailed-status__display-name p-author h-card', target: stream_link_target, rel: 'noopener' do
     %div
-      %div.avatar
+      .avatar
         = image_tag status.account.avatar.url(:original), width: 48, height: 48, alt: '', class: 'u-photo'
     %span.display-name
       %strong.p-name.emojify= display_name(status.account)
@@ -10,16 +10,16 @@
   .status__content.p-name.emojify<
     - if status.spoiler_text?
       %p{ style: 'margin-bottom: 0' }<
-        %span.p-summary>= "#{status.spoiler_text} "
+        %span.p-summary> #{status.spoiler_text}&nbsp;
         %a.status__content__spoiler-link{ href: '#' }= t('statuses.show_more')
-    %div.e-content{ lang: status.language, style: "display: #{status.spoiler_text? ? 'none' : 'block'}; direction: #{rtl?(status.content) ? 'rtl' : 'ltr'}" }= Formatter.instance.format(status)
+    .e-content{ lang: status.language, style: "display: #{status.spoiler_text? ? 'none' : 'block'}; direction: #{rtl?(status.content) ? 'rtl' : 'ltr'}" }= Formatter.instance.format(status)
 
   - unless status.media_attachments.empty?
     - if status.media_attachments.first.video?
       .video-player
         - if status.sensitive?
           = render partial: 'stream_entries/content_spoiler'
-        %video{ src: status.media_attachments.first.file.url(:original), loop: true, class: 'u-video' }
+        %video.u-video{ src: status.media_attachments.first.file.url(:original), loop: true }
     - else
       .detailed-status__attachments
         - if status.sensitive?
@@ -28,7 +28,7 @@
           - status.media_attachments.each do |media|
             = render partial: 'stream_entries/media', locals: { media: media }
 
-  %div.detailed-status__meta
+  .detailed-status__meta
     %data.dt-published{ value: status.created_at.to_time.iso8601 }
     = link_to TagManager.instance.url_for(status), class: 'detailed-status__datetime u-url u-uid', target: stream_link_target, rel: 'noopener' do
       %time{ datetime: status.created_at.iso8601, title: l(status.created_at), data: { format: t('time.formats.default') } }= l(status.created_at)

app/views/stream_entries/_media.html.haml

@@ -1,4 +1,4 @@
 .media-item
-  = link_to media.remote_url.blank? ? media.file.url(:original) : media.remote_url, style: media.image? ? "background-image: url(#{media.file.url(:original)})" : "", target: '_blank', rel: 'noopener', class: "u-#{media.video? || media.gifv? ? 'video' : 'photo'}" do
+  = link_to media.remote_url.blank? ? media.file.url(:original) : media.remote_url, style: media.image? ? "background-image: url(#{media.file.url(:original)})" : '', target: '_blank', rel: 'noopener', class: "u-#{media.video? || media.gifv? ? 'video' : 'photo'}" do
     - unless media.image?
       %video{ src: media.file.url(:original), autoplay: true, loop: true }/

app/views/stream_entries/_simple_status.html.haml

@@ -16,9 +16,9 @@
   .status__content.p-name.emojify<
     - if status.spoiler_text?
       %p{ style: 'margin-bottom: 0' }<
-        %span.p-summary>= "#{status.spoiler_text} "
+        %span.p-summary> #{status.spoiler_text}&nbsp;
         %a.status__content__spoiler-link{ href: '#' }= t('statuses.show_more')
-    %div.e-content{ lang: status.language, style: "display: #{status.spoiler_text? ? 'none' : 'block'}; direction: #{rtl?(status.content) ? 'rtl' : 'ltr'}" }= Formatter.instance.format(status)
+    .e-content{ lang: status.language, style: "display: #{status.spoiler_text? ? 'none' : 'block'}; direction: #{rtl?(status.content) ? 'rtl' : 'ltr'}" }= Formatter.instance.format(status)
 
   - unless status.media_attachments.empty?
     .status__attachments

app/views/stream_entries/_status.html.haml

@@ -1,25 +1,25 @@
-- include_threads ||= false
-- is_predecessor  ||= false
-- is_successor    ||= false
-- direct_reply_id ||= false
-- parent_id       ||= false
-- is_direct_parent  = direct_reply_id == status.id
-- is_direct_child  = parent_id == status.in_reply_to_id
-- parent_id       ||= false
-- centered        ||= include_threads && !is_predecessor && !is_successor
-- h_class         = microformats_h_class(status, is_predecessor, is_successor, include_threads)
-- style_classes   = style_classes(status, is_predecessor, is_successor, include_threads)
-- mf_classes      = microformats_classes(status, is_direct_parent, is_direct_child)
-- entry_classes   = h_class + ' ' + mf_classes + ' ' + style_classes
+:ruby
+  include_threads ||= false
+  is_predecessor  ||= false
+  is_successor    ||= false
+  direct_reply_id ||= false
+  parent_id       ||= false
+  is_direct_parent = direct_reply_id == status.id
+  is_direct_child  = parent_id == status.in_reply_to_id
+  centered ||= include_threads && !is_predecessor && !is_successor
+  h_class       = microformats_h_class(status, is_predecessor, is_successor, include_threads)
+  style_classes = style_classes(status, is_predecessor, is_successor, include_threads)
+  mf_classes    = microformats_classes(status, is_direct_parent, is_direct_child)
+  entry_classes = h_class + ' ' + mf_classes + ' ' + style_classes
 
 - if status.reply? && include_threads
-  = render partial: 'stream_entries/status', collection: @ancestors, as: :status, locals: { is_predecessor: true, direct_reply_id: status.in_reply_to_id}
+  = render partial: 'stream_entries/status', collection: @ancestors, as: :status, locals: { is_predecessor: true, direct_reply_id: status.in_reply_to_id }
 
 .entry{ class: entry_classes }
 
   - if status.reblog?
     .pre-header
-      %div.pre-header__icon
+      .pre-header__icon
         = fa_icon('retweet fw')
       %span
         = link_to TagManager.instance.url_for(status.account), class: 'status__display-name muted' do
@@ -29,4 +29,4 @@
   = render (centered ? 'stream_entries/detailed_status' : 'stream_entries/simple_status'), status: status.proper
 
 - if include_threads
-  = render partial: 'stream_entries/status', collection: @descendants, as: :status, locals: { is_successor: true, parent_id: status.id}
+  = render partial: 'stream_entries/status', collection: @descendants, as: :status, locals: { is_successor: true, parent_id: status.id }