From e6e51498dd9bff8332012ec2ad86c3fb5617bfa8 Mon Sep 17 00:00:00 2001
From: 2Shirt <2xShirt@gmail.com>
Date: Fri, 3 Jan 2020 18:36:53 -0700
Subject: [PATCH] Clear ddrescue pane every minute

---
 scripts/wk/hw/ddrescue.py | 16 ++++++++--------
 scripts/wk/hw/obj.py      |  1 -
 scripts/wk/tmux.py        | 10 ++++++++++
 3 files changed, 18 insertions(+), 9 deletions(-)

diff --git a/scripts/wk/hw/ddrescue.py b/scripts/wk/hw/ddrescue.py
index 5e7e858e..d61b9763 100644
--- a/scripts/wk/hw/ddrescue.py
+++ b/scripts/wk/hw/ddrescue.py
@@ -1673,10 +1673,8 @@ def run_ddrescue(state, block_pair, pass_name, settings, dry_run=True):
   std.clear_screen()
   warning_message = ''
 
-  def _update_smart_pane(iteration):
+  def _update_smart_pane():
     """Update SMART pane every 30 seconds."""
-    if iteration % 30 != 0:
-      return
     state.source.update_smart_details()
     now = datetime.datetime.now(tz=TIMEZONE).strftime('%Y-%m-%d %H:%M %Z')
     with open(f'{state.log_dir}/smart.out', 'w') as _f:
@@ -1691,10 +1689,7 @@ def run_ddrescue(state, block_pair, pass_name, settings, dry_run=True):
 
   # Dry run
   if dry_run:
-    std.print_info('ddrescue cmd:')
-    for _c in cmd:
-      std.print_standard(f'  {_c}')
-    std.pause()
+    LOG.info('ddrescue cmd: %s', cmd)
     return
 
   # Start ddrescue
@@ -1703,7 +1698,12 @@ def run_ddrescue(state, block_pair, pass_name, settings, dry_run=True):
   # ddrescue loop
   _i = 0
   while True:
-    _update_smart_pane(_i)
+    if _i % 30 == 0:
+      # Update SMART pane
+      _update_smart_pane()
+    if _i % 60 == 0:
+      # Clear ddrescue pane
+      tmux.clear_pane()
     _i += 1
 
     # Update progress
diff --git a/scripts/wk/hw/obj.py b/scripts/wk/hw/obj.py
index 1a7421b6..205d857a 100644
--- a/scripts/wk/hw/obj.py
+++ b/scripts/wk/hw/obj.py
@@ -1,6 +1,5 @@
 """WizardKit: Hardware objects (mostly)"""
 # vim: sts=2 sw=2 ts=2
-# TODO: Get log-sec data under Linux and macOS
 
 import logging
 import pathlib
diff --git a/scripts/wk/tmux.py b/scripts/wk/tmux.py
index 2f5b32e7..b6d32848 100644
--- a/scripts/wk/tmux.py
+++ b/scripts/wk/tmux.py
@@ -24,6 +24,16 @@ def capture_pane(pane_id=None):
   return proc.stdout.strip()
 
 
+def clear_pane(pane_id=None):
+  """Clear pane buffer for current or target pane."""
+  cmd = ['tmux', 'send-keys', '-R']
+  if pane_id:
+    cmd.extend(['-t', pane_id])
+
+  # Clear pane
+  run_program(cmd, check=False)
+
+
 def fix_layout(panes, layout, forced=False):
   """Fix pane sizes based on layout."""
   if not (forced or layout_needs_fixed(panes, layout)):