Show file system inode usage and read-only status

cgi-bin/malp.rb

@@ -210,21 +210,42 @@ if cgi.params.key?("content")
         used_b = entry["used"].to_i
         pct_f  = size_b > 0 ? (used_b * 100.0 / size_b) : 0.0
         pct    = pct_f.round
-        cls    = pct_f >= 90 ? "bad" : pct_f >= 75 ? "warn" : "ok"
+        space_cls = pct_f >= 90 ? "bad" : pct_f >= 75 ? "warn" : "ok"
         used_h = CGI.escapeHTML(human_capacity(used_b))
         size_h = CGI.escapeHTML(human_capacity(size_b))
 
+        fs_stats = []
+        inode_cls = "ok"
+        if (itot = entry["inode_total"].to_i) > 0
+          iused = entry["inode_used"].to_i
+          ipct_f = iused * 100.0 / itot
+          inode_cls = ipct_f >= 90 ? "bad" : ipct_f >= 75 ? "warn" : "ok"
+          fs_stats << [inode_cls, "Inodes #{ipct_f.round}%"]
+        end
+        fs_stats << ["warn", "READ-ONLY"] if entry["readonly"]
+
+        severities = [space_cls, inode_cls]
+        card_cls = severities.include?("bad")  ? "bad"  :
+                   severities.include?("warn") ? "warn" : "ok"
+
+        stats_html = fs_stats.map { |c, txt|
+          %(<span class="stat #{c}">#{CGI.escapeHTML(txt)}</span>)
+        }.join
+        stats_block = fs_stats.empty? ? "" :
+          %(<div class="drive-stats" style="margin-top:0.6rem;">#{stats_html}</div>)
+
         html << <<~HTML
-          <div class="card #{cls}">
+          <div class="card #{card_cls}">
             <div class="card-header">
               <span class="card-title">#{mount} <span class="card-capacity">#{fstype}</span></span>
-              <span class="badge #{cls}">#{pct}%</span>
+              <span class="badge #{space_cls}">#{pct}%</span>
             </div>
             <div style="display:flex;justify-content:space-between;align-items:center;margin-top:0.5rem;margin-bottom:0.3rem;">
               <span style="font-size:0.72rem;color:#64748b;font-weight:600;">#{source}</span>
-              <span class="subitem-value #{cls}">#{used_h} / #{size_h}</span>
+              <span class="subitem-value #{space_cls}">#{used_h} / #{size_h}</span>
             </div>
-            <div class="bar-track" style="height:6px;"><div class="bar-fill #{cls}" style="width:#{pct}%"></div></div>
+            <div class="bar-track" style="height:6px;"><div class="bar-fill #{space_cls}" style="width:#{pct}%"></div></div>
+            #{stats_block}
           </div>
         HTML
       end