knotty: ensure progress bar output is accounted for in display

When calculating how many lines we'd printed we weren't properly taking
the progress bars into account, with the result that sometimes if the
last line printed on the terminal wrapped to the next line (which is
possible) we backed up less lines than we should have.

Additionally, we should always print a newline after updating the
progress bar - there's no need to check if there wasn't output (there
always will be courtesy of our overridden _need_update()) and we now
allow the line to wrap so we don't need to check the other condition
either.

Hopefully this will fix [YOCTO #10046].

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/lib/bb/ui/knotty.py b/lib/bb/ui/knotty.py
index 79325bb6e4874455a5a20d97fb7d537a21e41520..b31a8a18e116f2f57ef4b61ea71f2e6c90ed269e 100644 (file)
--- a/lib/bb/ui/knotty.py
+++ b/lib/bb/ui/knotty.py
@@ -280,7 +280,7 @@ class TerminalFilter(object):
             progress = self.helper.tasknumber_current - 1
             if progress < 0:
                 progress = 0
-            self.main_progress.update(progress)
+            content = self.main_progress.update(progress)
             print('')
         lines = 1 + int(len(content) / (self.columns + 1))
         if not self.quiet:
@@ -294,11 +294,10 @@ class TerminalFilter(object):
                     pbar.setmessage('%s:%s' % (tasknum, pbar.msg.split(':', 1)[1]))
                     if progress > -1:
                         pbar.setextra(rate)
-                        output = pbar.update(progress)
+                        content = pbar.update(progress)
                     else:
-                        output = pbar.update(1)
-                    if not output or (len(output) <= pbar.term_width):
-                        print('')
+                        content = pbar.update(1)
+                    print('')
                 else:
                     content = "%s: %s" % (tasknum, task)
                     print(content)