diskusage: emit other entry

src/system.js

@@ -109,7 +109,7 @@ async function getFilesystems() {
             available: dfEntry.available,
             capacity: dfEntry.capacity,
             mountpoint: dfEntry.mountpoint,
-            contents: [] // filled below
+            contents: [] // filled below . { type, id, path }
         };
     }
 
@@ -227,7 +227,7 @@ class FilesystemUsageTask extends AsyncTask {
     }
 
     async _run(abortSignal) {
-        const { filesystem, type, contents } = this.#filesystem;
+        const { filesystem, type, contents, mountpoint, used } = this.#filesystem;
 
         let percent = 5;
 
@@ -241,6 +241,7 @@ class FilesystemUsageTask extends AsyncTask {
         }
 
         const dockerDf = await docker.df({ abortSignal });
+        let usage = 0;
 
         for (const content of contents) {
             percent += (90/contents.length+1);
@@ -256,8 +257,11 @@ class FilesystemUsageTask extends AsyncTask {
                 if (error) debug(`du error ${content.path}: ${error.message}`); // can happen if app is installing etc
                 content.usage = usage || 0;
             }
+            usage += content.usage;
             this.emitData({ content });
         }
+
+        if (mountpoint === '/') this.emitData({ type: 'standard', id: 'other', usage: used-usage });
     }
 }