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authorPaul Eggleton <paul.eggleton@linux.intel.com>2016-06-23 22:59:05 +1200
committerRichard Purdie <richard.purdie@linuxfoundation.org>2016-07-08 09:57:26 +0100
commitac5e720575dd3c8f86514a7a646de82c8cc28e17 (patch)
tree9c0cec5d764f1b9fb8f33d5f094d87a8fbc89ab5 /bitbake/lib/progressbar/progressbar.py
parent1cf6e14a6c5ddb4daec1c1e0cce113eea8570545 (diff)
downloadpoky-ac5e720575dd3c8f86514a7a646de82c8cc28e17.tar.gz
bitbake: lib: implement basic task progress support
For long-running tasks where we have some output from the task that gives us some idea of the progress of the task (such as a percentage complete), provide the means to scrape the output for that progress information and show it to the user in the default knotty terminal output in the form of a progress bar. This is implemented using a new TaskProgress event as well as some code we can insert to do output scanning/filtering. Any task can fire TaskProgress events; however, if you have a shell task whose output you wish to scan for progress information, you just need to set the "progress" varflag on the task. This can be set to: * "percent" to just look for a number followed by a % sign * "percent:<regex>" to specify your own regex matching a percentage value (must have a single group which matches the percentage number) * "outof:<regex>" to look for the specified regex matching x out of y items completed (must have two groups - first group needs to be x, second y). We can potentially extend this in future but this should be a good start. Part of the implementation for [YOCTO #5383]. (Bitbake rev: 0d275fc5b6531957a6189069b04074065bb718a0) Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'bitbake/lib/progressbar/progressbar.py')
-rw-r--r--bitbake/lib/progressbar/progressbar.py16
1 files changed, 12 insertions, 4 deletions
diff --git a/bitbake/lib/progressbar/progressbar.py b/bitbake/lib/progressbar/progressbar.py
index 0b9dcf763e..2873ad6cae 100644
--- a/bitbake/lib/progressbar/progressbar.py
+++ b/bitbake/lib/progressbar/progressbar.py
@@ -3,6 +3,8 @@
3# progressbar - Text progress bar library for Python. 3# progressbar - Text progress bar library for Python.
4# Copyright (c) 2005 Nilton Volpato 4# Copyright (c) 2005 Nilton Volpato
5# 5#
6# (With some small changes after importing into BitBake)
7#
6# This library is free software; you can redistribute it and/or 8# This library is free software; you can redistribute it and/or
7# modify it under the terms of the GNU Lesser General Public 9# modify it under the terms of the GNU Lesser General Public
8# License as published by the Free Software Foundation; either 10# License as published by the Free Software Foundation; either
@@ -261,12 +263,14 @@ class ProgressBar(object):
261 now = time.time() 263 now = time.time()
262 self.seconds_elapsed = now - self.start_time 264 self.seconds_elapsed = now - self.start_time
263 self.next_update = self.currval + self.update_interval 265 self.next_update = self.currval + self.update_interval
264 self.fd.write(self._format_line() + '\r') 266 output = self._format_line()
267 self.fd.write(output + '\r')
265 self.fd.flush() 268 self.fd.flush()
266 self.last_update_time = now 269 self.last_update_time = now
270 return output
267 271
268 272
269 def start(self): 273 def start(self, update=True):
270 """Starts measuring time, and prints the bar at 0%. 274 """Starts measuring time, and prints the bar at 0%.
271 275
272 It returns self so you can use it like this: 276 It returns self so you can use it like this:
@@ -289,8 +293,12 @@ class ProgressBar(object):
289 self.update_interval = self.maxval / self.num_intervals 293 self.update_interval = self.maxval / self.num_intervals
290 294
291 295
292 self.start_time = self.last_update_time = time.time() 296 self.start_time = time.time()
293 self.update(0) 297 if update:
298 self.last_update_time = self.start_time
299 self.update(0)
300 else:
301 self.last_update_time = 0
294 302
295 return self 303 return self
296 304