From 465fb2ba5d3f1d3421be920f6c109efa120ceccc Mon Sep 17 00:00:00 2001
From: xenofem <xenofem@xeno.science>
Date: Mon, 22 Nov 2021 20:10:58 -0500
Subject: [PATCH] don't crash on stalls

---
 impatient | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/impatient b/impatient
index eeaea7f..c5f3bf6 100755
--- a/impatient
+++ b/impatient
@@ -3,6 +3,7 @@
 import argparse
 import datetime
 import subprocess
+import sys
 import time
 
 WINDOW_SIZE = 100
@@ -72,18 +73,19 @@ while True:
     rate = (current - samples[0])/((len(samples)-1)*args.interval)
 
     print('\033[2K\r', end='')
-    print('{} - {}/s'.format(display_value(current), display_value(rate)), end='', flush=True)
+    print('{} - {}/s'.format(display_value(current), display_value(rate)), end='')
     if final:
         fraction = current / final
         value_remaining = final - current
-        time_remaining = datetime.timedelta(seconds=(value_remaining / rate))
-        eta = datetime.datetime.now() + time_remaining
-        print(' - {} total - {:.1f}% complete - {} remaining - ETA {}'.format(
-            display_value(final),
-            100*fraction,
-            display_timedelta(time_remaining),
-            eta.isoformat(sep=' ', timespec='minutes'),
-        ), end='', flush=True)
+        print(' - {} total - {:.1f}% complete'.format(display_value(final), 100*fraction), end='')
+        if rate > 0:
+            time_remaining = datetime.timedelta(seconds=(value_remaining / rate))
+            eta = datetime.datetime.now() + time_remaining
+            print(' - {} remaining - ETA {}'.format(
+                display_timedelta(time_remaining),
+                eta.isoformat(sep=' ', timespec='minutes'),
+            ), end='')
+    sys.stdout.flush()
 
     if final and current >= final:
         print()