Going on trying

butterfly.service

@@ -1,6 +1,6 @@
 [Unit]
 Description=Butterfly Terminal Server
-After=syslog.target
+After=network.target
 
 [Service]
 ExecStart=/usr/bin/butterfly.server.py

butterfly/static/coffees/term.coffee

@@ -81,7 +81,7 @@ class Terminal
             @element.appendChild(div)
             @children.push(div)
 
-        # @scrollback = 100000
+        @scrollback = 5000
         @missing_lines = 0
         @visualBell = 100
 
@@ -92,9 +92,6 @@ class Terminal
         @last_cc = 0
         @reset_vars()
 
-        # Draw screen
-        # @refresh 0, @rows - 1
-
         @focus()
 
         @startBlink()
@@ -378,7 +375,7 @@ class Terminal
             parent = @element.parentNode
             parent?.removeChild @element
 
-        @missing_lines = Math.min(@missing_lines, @rows - 1)
+        # @missing_lines = Math.min(@missing_lines, @rows - 1)
 
         if @missing_lines
             for i in [1..@missing_lines]
@@ -491,6 +488,8 @@ class Terminal
         @screen.push @blank_line()
         @refreshStart = Math.max(@refreshStart - 1, 0)
         @missing_lines++
+        if @missing_lines >= @rows
+            @refresh 0, @rows - 1
 
     scroll_display: (disp) ->
         @parent.scrollTop += disp * @char_size.height
@@ -499,6 +498,9 @@ class Terminal
         div = @document.createElement('div')
         div.className = 'line'
         @element.appendChild(div)
+        if @element.childElementCount > @scrollback
+            @element.children[0].remove()
+
         @children.shift()
         @children.push(div)
 
@@ -1050,7 +1052,7 @@ class Terminal
                         i++ if ch is "\x1b"
                         @state = State.normal
             i++
- 
+
         @updateRange @y
         @refresh @refreshStart, @refreshEnd
 

butterfly/static/javascripts/main.js

@@ -57,6 +57,7 @@ Terminal = (function() {
       this.element.appendChild(div);
       this.children.push(div);
     }
+    this.scrollback = 5000;
     this.missing_lines = 0;
     this.visualBell = 100;
     this.convertEol = false;
@@ -362,7 +363,6 @@ Terminal = (function() {
         parent.removeChild(this.element);
       }
     }
-    this.missing_lines = Math.min(this.missing_lines, this.rows - 1);
     if (this.missing_lines) {
       for (i = _i = 1, _ref = this.missing_lines; 1 <= _ref ? _i <= _ref : _i >= _ref; i = 1 <= _ref ? ++_i : --_i) {
         this.new_line();
@@ -511,7 +511,10 @@ Terminal = (function() {
     this.screen.shift();
     this.screen.push(this.blank_line());
     this.refreshStart = Math.max(this.refreshStart - 1, 0);
-    return this.missing_lines++;
+    this.missing_lines++;
+    if (this.missing_lines >= this.rows) {
+      return this.refresh(0, this.rows - 1);
+    }
   };
 
   Terminal.prototype.scroll_display = function(disp) {
@@ -523,6 +526,9 @@ Terminal = (function() {
     div = this.document.createElement('div');
     div.className = 'line';
     this.element.appendChild(div);
+    if (this.element.childElementCount > this.scrollback) {
+      this.element.children[0].remove();
+    }
     this.children.shift();
     return this.children.push(div);
   };