[diffoscope] 03/06: difference: adds condition for parallel execution

Juliana Oliveira jwnx-guest at moszumanska.debian.org
Tue Jan 23 22:03:35 CET 2018


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jwnx-guest pushed a commit to branch jwnx_parallel_diffoscope
in repository diffoscope.

commit 44dbf9dab95d68a8732c2478ffb8d6871445342e
Author: Juliana Oliveira <juliana.orod at gmail.com>
Date:   Tue Jan 16 11:06:53 2018 -0200

    difference: adds condition for parallel execution
    
    If Config().parallel is True, loads ComparisonPool class and
    uses .map method. Else, fallsback to serial.
    
    Signed-off-by: Juliana Oliveira <juliana.orod at gmail.com>
---
 diffoscope/difference.py | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/diffoscope/difference.py b/diffoscope/difference.py
index 4f7e994..526b81e 100644
--- a/diffoscope/difference.py
+++ b/diffoscope/difference.py
@@ -25,8 +25,8 @@ from . import feeders
 from .exc import RequiredToolNotFound
 from .diff import diff, reverse_unified_diff, diff_split_lines
 from .excludes import command_excluded
-from .parallel.comparison_pool import ComparisonPool, \
-                                      CommandFailedToExecute
+from .config import Config
+
 
 logger = logging.getLogger(__name__)
 
@@ -251,13 +251,18 @@ class Difference(object):
                 command.start()
             return feeder, command, False
 
-        pool = ComparisonPool()
         results = {}
 
-        try:
-          pool.map(command_and_feeder, args=[path1, path2], callback=results)
-        except CommandFailedToExecute as e:
-          logger.debug("Command failed while executing %s", e)
+        if Config.parallel:
+          from .parallel.comparison_pool import ComparisonPool, \
+                                                CommandFailedToExecute
+          pool = ComparisonPool()
+
+          try:
+            pool.map(command_and_feeder, args=[path1, path2],
+                     callback=results)
+          except CommandFailedToExecute as e:
+            logger.debug("Command failed while executing %s", e)
 
 
         if not results:

-- 
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