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#!/usr/bin/env python
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"""Update the What's New doc (development version)
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This collects the snippets from whatsnew/pr/, moves their content into
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whatsnew/development.rst (chronologically ordered), and deletes the snippets.
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"""
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import io
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import sys
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from pathlib import Path
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from subprocess import check_call, check_output
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repo_root = Path(__file__).resolve().parent.parent
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whatsnew_dir = repo_root / 'docs' / 'source' / 'whatsnew'
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pr_dir = whatsnew_dir / 'pr'
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target = whatsnew_dir / 'development.rst'
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FEATURE_MARK = ".. DO NOT EDIT THIS LINE BEFORE RELEASE. FEATURE INSERTION POINT."
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INCOMPAT_MARK = ".. DO NOT EDIT THIS LINE BEFORE RELEASE. INCOMPAT INSERTION POINT."
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# 1. Collect the whatsnew snippet files ---------------------------------------
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files = set(pr_dir.glob('*.rst'))
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# Ignore explanatory and example files
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files.difference_update({pr_dir / f for f in {
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'incompat-switching-to-perl.rst',
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'antigravity-feature.rst'}
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})
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if not files:
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print("No automatic update available for what's new")
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sys.exit(0)
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def getmtime(f):
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return check_output(['git', 'log', '-1', '--format="%ai"', '--', f])
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files = sorted(files, key=getmtime)
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features, incompats = [], []
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for path in files:
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with io.open(path, encoding='utf-8') as f:
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try:
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content = f.read().rstrip()
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except Exception as e:
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raise Exception('Error reading "{}"'.format(f)) from e
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if path.name.startswith('incompat-'):
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incompats.append(content)
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else:
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features.append(content)
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# Put the insertion markers back on the end, so they're ready for next time.
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feature_block = '\n\n'.join(features + [FEATURE_MARK])
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incompat_block = '\n\n'.join(incompats + [INCOMPAT_MARK])
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# 2. Update the target file ---------------------------------------------------
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with io.open(target, encoding='utf-8') as f:
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content = f.read()
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assert content.count(FEATURE_MARK) == 1
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assert content.count(INCOMPAT_MARK) == 1
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content = content.replace(FEATURE_MARK, feature_block)
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content = content.replace(INCOMPAT_MARK, incompat_block)
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# Clean trailing whitespace
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content = '\n'.join(l.rstrip() for l in content.splitlines())
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with io.open(target, 'w', encoding='utf-8') as f:
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f.write(content)
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# 3. Stage the changes in git -------------------------------------------------
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for file in files:
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check_call(['git', 'rm', file])
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check_call(['git', 'add', target])
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print("Merged what's new changes. Check the diff and commit the change.")
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