[Python-modules-commits] [python-docutils] 07/14: run 2to3 in parallel

[Dmitry Shachnev]

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mitya57 pushed a commit to branch master
in repository python-docutils.

commit 71f36957f858eefd3d1fa158397e794dc608365e
Author: Jakub Wilk <jwilk at debian.org>
Date:   Thu Oct 8 11:57:07 2015 -0700

    run 2to3 in parallel
    
    Forwarded: not-needed
    Last-Update: 2012-05-12
    
    Patch-Name: parallel-2to3.diff
---
 setup.py | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/setup.py b/setup.py
index 97ec659..118bec1 100755
--- a/setup.py
+++ b/setup.py
@@ -24,6 +24,18 @@ except ImportError:
 
 
 if sys.version_info >= (3,):
+
+    num_processes = 1
+    for option in os.environ.get('DEB_BUILD_OPTIONS', '').split():
+        if option.startswith('parallel='):
+            num_processes = int(option.split('=', 1)[1])
+    if num_processes > 1:
+        import lib2to3.refactor
+        class RefactoringTool(lib2to3.refactor.MultiprocessRefactoringTool):
+            def refactor(self, items, write=False):
+                return lib2to3.refactor.MultiprocessRefactoringTool.refactor(self, items, write=write, num_processes=num_processes)
+        lib2to3.refactor.RefactoringTool = RefactoringTool
+
     # copy-convert auxiliary python sources
     class copy_build_py_2to3(build_py_2to3):
         """Copy/convert Python source files in given directories recursively.

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