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[3.11] gh-89792: Prevent test_tools from copying 1000M of "source" in freeze test (GH-101837) #101839

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Feb 12, 2023
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[3.11] gh-89792: Prevent test_tools from copying 1000M of "source" in freeze test (GH-101837) #101839

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3 changes: 3 additions & 0 deletions Misc/NEWS.d/next/Tests/2023-02-11-20-28-08.gh-issue-89792.S-Y5BZ.rst
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Original file line number Diff line number Diff line change
@@ -0,0 +1,3 @@
``test_tools`` now copies up to 10x less source data to a temporary
directory during the ``freeze`` test by ignoring git metadata and other
artifacts.
14 changes: 13 additions & 1 deletion Tools/freeze/test/freeze.py
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Original file line number Diff line number Diff line change
Expand Up @@ -80,7 +80,19 @@ def copy_source_tree(newroot, oldroot):
if newroot == SRCDIR:
raise Exception('this probably isn\'t what you wanted')
shutil.rmtree(newroot)
shutil.copytree(oldroot, newroot)

def ignore_non_src(src, names):
"""Turns what could be a 1000M copy into a 100M copy."""
# Don't copy the ~600M+ of needless git repo metadata.
# source only, ignore cached .pyc files.
subdirs_to_skip = {'.git', '__pycache__'}
if os.path.basename(src) == 'Doc':
# Another potential ~250M+ of non test related data.
subdirs_to_skip.add('build')
subdirs_to_skip.add('venv')
return subdirs_to_skip

shutil.copytree(oldroot, newroot, ignore=ignore_non_src)
if os.path.exists(os.path.join(newroot, 'Makefile')):
_run_quiet([MAKE, 'clean'], newroot)

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