Apply basic style to make commit diffs look a bit less very ugly

src/Vervis/Widget/Repo.hs

@@ -38,6 +38,7 @@ import Vervis.Foundation
 import Vervis.Model.Ident
 import Vervis.Patch (Hunk (..))
 import Vervis.Settings (widgetFile, appDiffContextLines)
+import Vervis.Style
 
 refSelectW :: ShrIdent -> RpIdent -> Set Text -> Set Text -> Widget
 refSelectW shar repo branches tags = $(widgetFile "repo/widget/ref-select")

templates/repo/patch.cassius

@@ -0,0 +1,17 @@
+/* This file is part of Vervis.
+ *
+ * Written in 2018 by fr33domlover <fr33domlover@riseup.net>.
+ *
+ * ♡ Copying is an act of love. Please copy, reuse and share.
+ *
+ * The author(s) have dedicated all copyright and related and neighboring
+ * rights to this software to the public domain worldwide. This software is
+ * distributed without any warranty.
+ *
+ * You should have received a copy of the CC0 Public Domain Dedication along
+ * with this software. If not, see
+ * <http://creativecommons.org/publicdomain/zero/1.0/>.
+ */
+
+.lines
+    font-family: monospace

templates/repo/patch.hamlet

@@ -38,7 +38,7 @@ $if null parents
         $case edit
           $of AddTextFile path mode lines
             <p>Add file #{path} #{mode}
-            <table>
+            <table .lines>
               $forall (n, t) <- number lines
                 <tr>
                   <td>+
@@ -48,7 +48,7 @@ $if null parents
             <p>Add binary file #{path} #{mode} #{size}
           $of RemoveTextFile path mode lines
             <p>Remove file #{path} #{mode}
-            <table>
+            <table .lines>
               $forall (n, t) <- number lines
                 <tr>
                   <td>-
@@ -69,7 +69,7 @@ $if null parents
               #{newSize} #{newMode}
           $of TextToBinary path lines oldMode newSize newMode
             <p>Edit file #{path} #{oldMode} → #{newSize} #{newMode}
-            <table>
+            <table .lines>
               $forall (n, t) <- number lines
                 <tr>
                   <td>-
@@ -77,7 +77,7 @@ $if null parents
                   <td>#{t}
           $of BinaryToText path oldSize oldMode lines newMode
             <p>Edit file #{path} #{oldMode} #{oldSize} → #{newMode}
-            <table>
+            <table .lines>
               $forall (n, t) <- number lines
                 <tr>
                   <td>+

templates/repo/widget/inline-diff.cassius

@@ -0,0 +1,25 @@
+/* This file is part of Vervis.
+ *
+ * Written in 2018 by fr33domlover <fr33domlover@riseup.net>.
+ *
+ * ♡ Copying is an act of love. Please copy, reuse and share.
+ *
+ * The author(s) have dedicated all copyright and related and neighboring
+ * rights to this software to the public domain worldwide. This software is
+ * distributed without any warranty.
+ *
+ * You should have received a copy of the CC0 Public Domain Dedication along
+ * with this software. If not, see
+ * <http://creativecommons.org/publicdomain/zero/1.0/>.
+ */
+
+.lines
+    font-family: monospace
+
+.remove
+    background: #{light red}
+    color:      #{dark red}
+
+.add
+    background: #{light green}
+    color:      #{dark green}

templates/repo/widget/inline-diff.hamlet

@@ -12,24 +12,26 @@ $# You should have received a copy of the CC0 Public Domain Dedication along
 $# with this software. If not, see
 $# <http://creativecommons.org/publicdomain/zero/1.0/>.
 
-<table>
+<table .lines>
   $forall lines <- diffs
     $forall (ln, t) <- lines
-      <tr>
-        $case ln
-          $of Old n
+      $case ln
+        $of Old n
+          <tr .remove>
             <td>-
             <td>#{n}
             <td>
-          $of New n
+        $of New n
+          <tr .add>
             <td>+
             <td>
             <td>#{n}
-          $of Both o n
+        $of Both o n
+          <tr>
             <td>
             <td>#{o}
             <td>#{n}
-        <td>#{t}
+      <td>#{t}
     <tr>
       <td>…
       <td>…