[diffoscope] 05/06: diffoscope.progress: Always update the progress bar so we update the message.

[Chris Lamb]

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lamby pushed a commit to branch master
in repository diffoscope.

commit 03b2e2a0c197a9ef6a1f0dc75ff0c61dc487d24c
Author: Chris Lamb <lamby at debian.org>
Date:   Wed Dec 28 18:33:00 2016 +0000

    diffoscope.progress: Always update the progress bar so we update the message.
    
    Signed-off-by: Chris Lamb <lamby at debian.org>
---
 diffoscope/progress.py | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/diffoscope/progress.py b/diffoscope/progress.py
index 6d53810..61e6e7d 100644
--- a/diffoscope/progress.py
+++ b/diffoscope/progress.py
@@ -54,8 +54,6 @@ class ProgressManager(object):
 
     def step(self, delta=1, msg=""):
         delta = min(self.total - self.current, delta) # clamp
-        if not delta:
-            return
 
         self.current += delta
         for x in self.observers:
@@ -108,7 +106,11 @@ class ProgressBar(object):
                 # Print the last `width` characters with an ellipsis.
                 return '…{}'.format(msg[-width + 1:])
 
-        self.bar = progressbar.ProgressBar(widgets=(
+        class OurProgressBar(progressbar.ProgressBar):
+            def _need_update(self):
+                return True
+
+        self.bar = OurProgressBar(widgets=(
             ' ',
             progressbar.Bar(),
             '  ',

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