Replace snake case in SCSS variables

app/assets/stylesheets/framework/avatar.scss

@@ -7,7 +7,7 @@
 .avatar-circle {
   float: left;
   margin-right: 15px;
-  border-radius: $avatar_radius;
+  border-radius: $avatar-radius;
   border: 1px solid $avatar-border;
   &.s16 { @include avatar-size(16px, 6px); }
   &.s18 { @include avatar-size(18px, 6px); }
@@ -110,7 +110,7 @@
   color: $white-light;
   border: 1px solid $avatar-border;
   border-radius: 1em;
-  font-family: $regular_font;
+  font-family: $regular-font;
   font-size: 9px;
   line-height: 16px;
   text-align: center;

app/assets/stylesheets/framework/forms.scss

@@ -80,7 +80,7 @@ label {
   .form-control {
     height: 29px;
     background: $white-light;
-    font-family: $monospace_font;
+    font-family: $monospace-font;
   }
   .input-group-prepend .btn,

app/assets/stylesheets/framework/highlight.scss

@@ -9,8 +9,8 @@
     padding: 10px 0;
     border: 0;
     border-radius: 0;
-    font-family: $monospace_font;
-    font-size: $code_font_size;
+    font-family: $monospace-font;
+    font-size: $code-font-size;
     line-height: 19px;
     margin: 0;
     overflow: auto;
@@ -22,7 +22,7 @@
     code {
       display: inline-block;
       min-width: 100%;
-      font-family: $monospace_font;
+      font-family: $monospace-font;
       white-space: normal;
       word-wrap: normal;
       padding: 0;
@@ -44,7 +44,7 @@
     float: left;
     a {
-      font-family: $monospace_font;
+      font-family: $monospace-font;
       display: block;
       font-size: $code_font_size !important;
       min-height: 19px;

app/assets/stylesheets/framework/jquery.scss

 .ui-widget {
-  font-family: $regular_font;
+  font-family: $regular-font;
   font-size: $font-size-base;
   .ui-state-default {

app/assets/stylesheets/framework/sidebar.scss

@@ -33,11 +33,11 @@
   @include media-breakpoint-up(sm) {
     &:not(.wiki-sidebar):not(.build-sidebar):not(.issuable-bulk-update-sidebar) .content-wrapper {
-      padding-right: $gutter_collapsed_width;
+      padding-right: $gutter-collapsed-width;
     }
     .merge-request-tabs-holder.affix {
-      right: $gutter_collapsed_width;
+      right: $gutter-collapsed-width;
     }
   }
@@ -67,21 +67,21 @@
   @include media-breakpoint-only(sm) {
     &:not(.wiki-sidebar):not(.build-sidebar):not(.issuable-bulk-update-sidebar) .content-wrapper {
-      padding-right: $gutter_collapsed_width;
+      padding-right: $gutter-collapsed-width;
     }
   }
   @include media-breakpoint-up(md) {
     .content-wrapper {
-      padding-right: $gutter_width;
+      padding-right: $gutter-width;
     }
     &:not(.with-overlay) .merge-request-tabs-holder.affix {
-      right: $gutter_width;
+      right: $gutter-width;
     }
     &.with-overlay .merge-request-tabs-holder.affix {
-      right: $gutter_collapsed_width;
+      right: $gutter-collapsed-width;
     }
   }
 }

app/assets/stylesheets/framework/typography.scss

@@ -44,7 +44,7 @@
   // Single code lines should wrap
   code {
-    font-family: $monospace_font;
+    font-family: $monospace-font;
     white-space: pre-wrap;
     word-wrap: normal;
   }
@@ -321,7 +321,7 @@ h6 {
 /** CODE **/
 pre {
-  font-family: $monospace_font;
+  font-family: $monospace-font;
   display: block;
   padding: $gl-padding-8;
   margin: 0 0 $gl-padding-8;
@@ -342,7 +342,7 @@ code {
 }
 .monospace {
-  font-family: $monospace_font;
+  font-family: $monospace-font;
 }
 .weight-normal {
@@ -381,7 +381,7 @@ code {
  *
  */
 textarea.js-gfm-input {
-  font-family: $monospace_font;
+  font-family: $monospace-font;
   font-size: 13px;
 }

app/assets/stylesheets/framework/variables.scss

@@ -2,9 +2,9 @@
  * Layout
  */
 $grid-size: 8px;
-$gutter_collapsed_width: 62px;
-$gutter_width: 290px;
-$gutter_inner_width: 250px;
+$gutter-collapsed-width: 62px;
+$gutter-width: 290px;
+$gutter-inner-width: 250px;
 $sidebar-transition-duration: 0.3s;
 $sidebar-breakpoint: 1024px;
 $default-transition-duration: 0.15s;
@@ -233,8 +233,8 @@ $md-area-border: #ddd;
 /*
  * Code
  */
-$code_font_size: 90%;
-$code_line_height: 1.6;
+$code-font-size: 90%;
+$code-line-height: 1.6;
 /*
  * Tooltips
@@ -371,9 +371,9 @@ $diff-jagged-border-gradient-color: darken($white-normal, 8%);
 /*
  * Fonts
  */
-$monospace_font: 'Menlo', 'DejaVu Sans Mono', 'Liberation Mono', 'Consolas', 'Ubuntu Mono',
+$monospace-font: 'Menlo', 'DejaVu Sans Mono', 'Liberation Mono', 'Consolas', 'Ubuntu Mono',
   'Courier New', 'andale mono', 'lucida console', monospace;
-$regular_font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen-Sans, Ubuntu, Cantarell,
+$regular-font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen-Sans, Ubuntu, Cantarell,
   'Helvetica Neue', sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol';
 /*
@@ -526,7 +526,7 @@ $issue-board-list-difference-md: $issue-board-list-difference-sm + $issue-boards
 /*
 * Avatar
 */
-$avatar_radius: 50%;
+$avatar-radius: 50%;
 $avatar-border: $gray-normal;
 $avatar-border-hover: $gray-darker;
 $avatar-background: $gray-lightest;
@@ -830,8 +830,8 @@ $secondary: $gray-light;
 $input-disabled-bg: $gray-light;
 $input-border-color: $theme-gray-200;
 $input-color: $gl-text-color;
-$font-family-sans-serif: $regular_font;
-$font-family-monospace: $monospace_font;
+$font-family-sans-serif: $regular-font;
+$font-family-monospace: $monospace-font;
 $input-line-height: 20px;
 $btn-line-height: 20px;
 $table-accent-bg: $gray-light;

app/assets/stylesheets/mailers/highlighted_diff_email.scss

@@ -77,13 +77,13 @@ $highlighted-gc-bg: #eaf2f5;
 .code {
   background-color: $white-light;
   font-family: monospace;
-  font-size: $code_font_size;
+  font-size: $code-font-size;
   -premailer-cellpadding: 0;
   -premailer-cellspacing: 0;
   -premailer-width: 100%;
   > tr {
-    line-height: $code_line_height;
+    line-height: $code-line-height;
   }
 }

app/assets/stylesheets/pages/boards.scss

@@ -63,7 +63,7 @@
     width: 100%;
     &.is-compact {
-      width: calc(100% - #{$gutter_width});
+      width: calc(100% - #{$gutter-width});
     }
   }
 }

app/assets/stylesheets/pages/commits.scss

@@ -79,7 +79,7 @@
 .commit-message-container {
   background-color: $body-bg;
   position: relative;
-  font-family: $monospace_font;
+  font-family: $monospace-font;
   $left: 12px;
   overflow: hidden; // See https://gitlab.com/gitlab-org/gitlab-ce/issues/13987
   .max-width-marker {

app/assets/stylesheets/pages/cycle_analytics.scss

@@ -368,7 +368,7 @@
       .fa {
         color: $gl-text-color-secondary;
-        font-size: $code_font_size;
+        font-size: $code-font-size;
       }
     }
   }

app/assets/stylesheets/pages/diff.scss

@@ -56,7 +56,7 @@
     table {
       width: 100%;
-      font-family: $monospace_font;
+      font-family: $monospace-font;
       border: 0;
       border-collapse: separate;
       margin: 0;
@@ -73,8 +73,8 @@
       }
       .line_holder td {
-        line-height: $code_line_height;
-        font-size: $code_font_size;
+        line-height: $code-line-height;
+        font-size: $code-font-size;
         &.noteable_line {
           position: relative;

app/assets/stylesheets/pages/editor.scss

@@ -84,7 +84,7 @@
   .soft-wrap-toggle {
     display: inline-block;
     vertical-align: top;
-    font-family: $regular_font;
+    font-family: $regular-font;
   }
   .soft-wrap-toggle {

app/assets/stylesheets/pages/environments.scss

@@ -478,7 +478,7 @@
     }
     .deploy-info-text-link {
-      font-family: $monospace_font;
+      font-family: $monospace-font;
       fill: $gl-link-color;
       &:hover {

app/assets/stylesheets/pages/issuable.scss

@@ -166,7 +166,7 @@
     border-bottom: 1px solid $border-gray-normal;
     // This prevents the mess when resizing the sidebar
     // of elements repositioning themselves..
-    width: $gutter_inner_width;
+    width: $gutter-inner-width;
     // --
     &.issuable-sidebar-header {
@@ -290,7 +290,7 @@
   }
   &.right-sidebar-expanded {
-    width: $gutter_width;
+    width: $gutter-width;
     .value {
       line-height: 1;
@@ -377,11 +377,11 @@
       display: block;
     }
-    width: $gutter_collapsed_width;
+    width: $gutter-collapsed-width;
     padding: 0;
     .block {
-      width: $gutter_collapsed_width - 2px;
+      width: $gutter-collapsed-width - 2px;
       padding: 15px 0 0;
       border-bottom: 0;
       overflow: hidden;

app/assets/stylesheets/pages/merge_requests.scss

@@ -208,7 +208,7 @@
         position: absolute;
         content: '...';
         right: 0;
-        font-family: $regular_font;
+        font-family: $regular-font;
         background-color: $gray-light;
       }
     }

app/assets/stylesheets/pages/note_form.scss

@@ -42,7 +42,7 @@
   display: block;
   padding: 10px 0;
   color: $gl-text-color;
-  font-family: $regular_font;
+  font-family: $regular-font;
   border: 0;
   &:focus {

app/assets/stylesheets/pages/notes.scss

@@ -328,7 +328,7 @@ ul.notes {
   }
   .notes_holder {
-    font-family: $regular_font;
+    font-family: $regular-font;
     td {
       border: 1px solid $white-normal;

app/assets/stylesheets/pages/repo.scss

@@ -961,7 +961,7 @@
   overflow: hidden;
   .note-textarea {
-    font-family: $monospace_font;
+    font-family: $monospace-font;
   }
 }

app/assets/stylesheets/snippets.scss

@@ -6,9 +6,9 @@
   $border-style: 1px solid $border-color;
-  font-family: $regular_font;
+  font-family: $regular-font;
   font-size: $gl-font-size;
-  line-height: $code_line_height;
+  line-height: $code-line-height;
   color: $gl-text-color;
   margin: 20px;
   font-weight: 200;
@@ -48,9 +48,9 @@
         padding: 10px;
         border: 0;
         border-radius: 0;
-        font-family: $monospace_font;
-        font-size: $code_font_size;
-        line-height: $code_line_height;
+        font-family: $monospace-font;
+        font-size: $code-font-size;
+        line-height: $code-line-height;
         margin: 0;
         overflow: auto;
         overflow-y: hidden;
@@ -66,10 +66,10 @@
       float: left;
       .diff-line-num {
-        font-family: $monospace_font;
+        font-family: $monospace-font;
         display: block;
-        font-size: $code_font_size;
-        min-height: $code_line_height;
+        font-size: $code-font-size;
+        min-height: $code-line-height;
         white-space: nowrap;
         color: $black-transparent;
         min-width: 30px;