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511 lines
18 KiB
Python
511 lines
18 KiB
Python
from __future__ import annotations
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# Allow direct execution
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import os
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import sys
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sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
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import enum
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import itertools
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import json
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import logging
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import re
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from collections import defaultdict
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from dataclasses import dataclass
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from functools import lru_cache
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from pathlib import Path
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from devscripts.utils import read_file, run_process, write_file
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BASE_URL = 'https://github.com'
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LOCATION_PATH = Path(__file__).parent
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HASH_LENGTH = 7
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logger = logging.getLogger(__name__)
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class CommitGroup(enum.Enum):
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PRIORITY = 'Important'
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CORE = 'Core'
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EXTRACTOR = 'Extractor'
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DOWNLOADER = 'Downloader'
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POSTPROCESSOR = 'Postprocessor'
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NETWORKING = 'Networking'
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MISC = 'Misc.'
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@classmethod
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@lru_cache
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def subgroup_lookup(cls):
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return {
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name: group
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for group, names in {
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cls.MISC: {
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'build',
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'ci',
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'cleanup',
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'devscripts',
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'docs',
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'test',
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},
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cls.NETWORKING: {
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'rh',
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},
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}.items()
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for name in names
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}
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@classmethod
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@lru_cache
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def group_lookup(cls):
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result = {
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'fd': cls.DOWNLOADER,
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'ie': cls.EXTRACTOR,
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'pp': cls.POSTPROCESSOR,
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'upstream': cls.CORE,
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}
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result.update({item.name.lower(): item for item in iter(cls)})
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return result
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@classmethod
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def get(cls, value: str) -> tuple[CommitGroup | None, str | None]:
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group, _, subgroup = (group.strip().lower() for group in value.partition('/'))
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result = cls.group_lookup().get(group)
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if not result:
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if subgroup:
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return None, value
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subgroup = group
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result = cls.subgroup_lookup().get(subgroup)
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return result, subgroup or None
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@dataclass
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class Commit:
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hash: str | None
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short: str
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authors: list[str]
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def __str__(self):
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result = f'{self.short!r}'
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if self.hash:
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result += f' ({self.hash[:HASH_LENGTH]})'
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if self.authors:
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authors = ', '.join(self.authors)
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result += f' by {authors}'
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return result
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@dataclass
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class CommitInfo:
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details: str | None
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sub_details: tuple[str, ...]
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message: str
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issues: list[str]
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commit: Commit
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fixes: list[Commit]
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def key(self):
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return ((self.details or '').lower(), self.sub_details, self.message)
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def unique(items):
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return sorted({item.strip().lower(): item for item in items if item}.values())
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class Changelog:
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MISC_RE = re.compile(r'(?:^|\b)(?:lint(?:ing)?|misc|format(?:ting)?|fixes)(?:\b|$)', re.IGNORECASE)
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ALWAYS_SHOWN = (CommitGroup.PRIORITY,)
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def __init__(self, groups, repo, collapsible=False):
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self._groups = groups
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self._repo = repo
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self._collapsible = collapsible
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def __str__(self):
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return '\n'.join(self._format_groups(self._groups)).replace('\t', ' ')
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def _format_groups(self, groups):
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first = True
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for item in CommitGroup:
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if self._collapsible and item not in self.ALWAYS_SHOWN and first:
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first = False
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yield '\n<details><summary><h3>Changelog</h3></summary>\n'
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group = groups[item]
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if group:
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yield self.format_module(item.value, group)
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if self._collapsible:
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yield '\n</details>'
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def format_module(self, name, group):
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result = f'\n#### {name} changes\n' if name else '\n'
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return result + '\n'.join(self._format_group(group))
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def _format_group(self, group):
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sorted_group = sorted(group, key=CommitInfo.key)
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detail_groups = itertools.groupby(sorted_group, lambda item: (item.details or '').lower())
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for _, items in detail_groups:
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items = list(items)
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details = items[0].details
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if details == 'cleanup':
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items = self._prepare_cleanup_misc_items(items)
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prefix = '-'
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if details:
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if len(items) == 1:
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prefix = f'- **{details}**:'
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else:
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yield f'- **{details}**'
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prefix = '\t-'
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sub_detail_groups = itertools.groupby(items, lambda item: tuple(map(str.lower, item.sub_details)))
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for sub_details, entries in sub_detail_groups:
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if not sub_details:
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for entry in entries:
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yield f'{prefix} {self.format_single_change(entry)}'
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continue
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entries = list(entries)
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sub_prefix = f'{prefix} {", ".join(entries[0].sub_details)}'
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if len(entries) == 1:
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yield f'{sub_prefix}: {self.format_single_change(entries[0])}'
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continue
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yield sub_prefix
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for entry in entries:
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yield f'\t{prefix} {self.format_single_change(entry)}'
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def _prepare_cleanup_misc_items(self, items):
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cleanup_misc_items = defaultdict(list)
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sorted_items = []
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for item in items:
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if self.MISC_RE.search(item.message):
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cleanup_misc_items[tuple(item.commit.authors)].append(item)
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else:
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sorted_items.append(item)
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for commit_infos in cleanup_misc_items.values():
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sorted_items.append(CommitInfo(
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'cleanup', ('Miscellaneous',), ', '.join(
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self._format_message_link(None, info.commit.hash)
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for info in sorted(commit_infos, key=lambda item: item.commit.hash or '')),
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[], Commit(None, '', commit_infos[0].commit.authors), []))
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return sorted_items
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def format_single_change(self, info: CommitInfo):
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message, sep, rest = info.message.partition('\n')
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if '[' not in message:
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# If the message doesn't already contain markdown links, try to add a link to the commit
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message = self._format_message_link(message, info.commit.hash)
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if info.issues:
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message = f'{message} ({self._format_issues(info.issues)})'
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if info.commit.authors:
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message = f'{message} by {self._format_authors(info.commit.authors)}'
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if info.fixes:
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fix_message = ', '.join(f'{self._format_message_link(None, fix.hash)}' for fix in info.fixes)
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authors = sorted({author for fix in info.fixes for author in fix.authors}, key=str.casefold)
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if authors != info.commit.authors:
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fix_message = f'{fix_message} by {self._format_authors(authors)}'
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message = f'{message} (With fixes in {fix_message})'
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return message if not sep else f'{message}{sep}{rest}'
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def _format_message_link(self, message, hash):
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assert message or hash, 'Improperly defined commit message or override'
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message = message if message else hash[:HASH_LENGTH]
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return f'[{message}]({self.repo_url}/commit/{hash})' if hash else message
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def _format_issues(self, issues):
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return ', '.join(f'[#{issue}]({self.repo_url}/issues/{issue})' for issue in issues)
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@staticmethod
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def _format_authors(authors):
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return ', '.join(f'[{author}]({BASE_URL}/{author})' for author in authors)
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@property
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def repo_url(self):
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return f'{BASE_URL}/{self._repo}'
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class CommitRange:
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COMMAND = 'git'
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COMMIT_SEPARATOR = '-----'
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AUTHOR_INDICATOR_RE = re.compile(r'Authored by:? ', re.IGNORECASE)
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MESSAGE_RE = re.compile(r'''
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(?:\[(?P<prefix>[^\]]+)\]\ )?
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(?:(?P<sub_details>`?[\w.-]+`?): )?
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(?P<message>.+?)
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(?:\ \((?P<issues>\#\d+(?:,\ \#\d+)*)\))?
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''', re.VERBOSE | re.DOTALL)
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EXTRACTOR_INDICATOR_RE = re.compile(r'(?:Fix|Add)\s+Extractors?', re.IGNORECASE)
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REVERT_RE = re.compile(r'(?:\[[^\]]+\]\s+)?(?i:Revert)\s+([\da-f]{40})')
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FIXES_RE = re.compile(r'(?i:Fix(?:es)?(?:\s+bugs?)?(?:\s+in|\s+for)?|Revert|Improve)\s+([\da-f]{40})')
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UPSTREAM_MERGE_RE = re.compile(r'Update to ytdl-commit-([\da-f]+)')
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def __init__(self, start, end, default_author=None):
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self._start, self._end = start, end
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self._commits, self._fixes = self._get_commits_and_fixes(default_author)
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self._commits_added = []
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def __iter__(self):
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return iter(itertools.chain(self._commits.values(), self._commits_added))
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def __len__(self):
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return len(self._commits) + len(self._commits_added)
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def __contains__(self, commit):
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if isinstance(commit, Commit):
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if not commit.hash:
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return False
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commit = commit.hash
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return commit in self._commits
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def _get_commits_and_fixes(self, default_author):
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result = run_process(
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self.COMMAND, 'log', f'--format=%H%n%s%n%b%n{self.COMMIT_SEPARATOR}',
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f'{self._start}..{self._end}' if self._start else self._end).stdout
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commits, reverts = {}, {}
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fixes = defaultdict(list)
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lines = iter(result.splitlines(False))
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for i, commit_hash in enumerate(lines):
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short = next(lines)
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skip = short.startswith('Release ') or short == '[version] update'
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authors = [default_author] if default_author else []
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for line in iter(lambda: next(lines), self.COMMIT_SEPARATOR):
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match = self.AUTHOR_INDICATOR_RE.match(line)
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if match:
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authors = sorted(map(str.strip, line[match.end():].split(',')), key=str.casefold)
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commit = Commit(commit_hash, short, authors)
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if skip and (self._start or not i):
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logger.debug(f'Skipped commit: {commit}')
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continue
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elif skip:
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logger.debug(f'Reached Release commit, breaking: {commit}')
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break
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revert_match = self.REVERT_RE.fullmatch(commit.short)
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if revert_match:
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reverts[revert_match.group(1)] = commit
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continue
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fix_match = self.FIXES_RE.search(commit.short)
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if fix_match:
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commitish = fix_match.group(1)
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fixes[commitish].append(commit)
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commits[commit.hash] = commit
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for commitish, revert_commit in reverts.items():
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reverted = commits.pop(commitish, None)
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if reverted:
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logger.debug(f'{commitish} fully reverted {reverted}')
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else:
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commits[revert_commit.hash] = revert_commit
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for commitish, fix_commits in fixes.items():
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if commitish in commits:
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hashes = ', '.join(commit.hash[:HASH_LENGTH] for commit in fix_commits)
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logger.info(f'Found fix(es) for {commitish[:HASH_LENGTH]}: {hashes}')
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for fix_commit in fix_commits:
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del commits[fix_commit.hash]
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else:
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logger.debug(f'Commit with fixes not in changes: {commitish[:HASH_LENGTH]}')
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return commits, fixes
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def apply_overrides(self, overrides):
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for override in overrides:
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when = override.get('when')
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if when and when not in self and when != self._start:
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logger.debug(f'Ignored {when!r} override')
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continue
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override_hash = override.get('hash') or when
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if override['action'] == 'add':
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commit = Commit(override.get('hash'), override['short'], override.get('authors') or [])
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logger.info(f'ADD {commit}')
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self._commits_added.append(commit)
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elif override['action'] == 'remove':
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if override_hash in self._commits:
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logger.info(f'REMOVE {self._commits[override_hash]}')
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del self._commits[override_hash]
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elif override['action'] == 'change':
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if override_hash not in self._commits:
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continue
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commit = Commit(override_hash, override['short'], override.get('authors') or [])
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logger.info(f'CHANGE {self._commits[commit.hash]} -> {commit}')
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self._commits[commit.hash] = commit
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self._commits = {key: value for key, value in reversed(self._commits.items())}
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def groups(self):
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group_dict = defaultdict(list)
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for commit in self:
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upstream_re = self.UPSTREAM_MERGE_RE.search(commit.short)
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if upstream_re:
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commit.short = f'[upstream] Merged with youtube-dl {upstream_re.group(1)}'
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match = self.MESSAGE_RE.fullmatch(commit.short)
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if not match:
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logger.error(f'Error parsing short commit message: {commit.short!r}')
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continue
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prefix, sub_details_alt, message, issues = match.groups()
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issues = [issue.strip()[1:] for issue in issues.split(',')] if issues else []
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if prefix:
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groups, details, sub_details = zip(*map(self.details_from_prefix, prefix.split(',')))
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group = next(iter(filter(None, groups)), None)
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details = ', '.join(unique(details))
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sub_details = list(itertools.chain.from_iterable(sub_details))
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else:
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group = CommitGroup.CORE
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details = None
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sub_details = []
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if sub_details_alt:
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sub_details.append(sub_details_alt)
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sub_details = tuple(unique(sub_details))
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if not group:
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if self.EXTRACTOR_INDICATOR_RE.search(commit.short):
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group = CommitGroup.EXTRACTOR
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logger.error(f'Assuming [ie] group for {commit.short!r}')
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else:
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group = CommitGroup.CORE
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commit_info = CommitInfo(
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details, sub_details, message.strip(),
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issues, commit, self._fixes[commit.hash])
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logger.debug(f'Resolved {commit.short!r} to {commit_info!r}')
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group_dict[group].append(commit_info)
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return group_dict
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@staticmethod
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def details_from_prefix(prefix):
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if not prefix:
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return CommitGroup.CORE, None, ()
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prefix, *sub_details = prefix.split(':')
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group, details = CommitGroup.get(prefix)
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if group is CommitGroup.PRIORITY and details:
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details = details.partition('/')[2].strip()
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if details and '/' in details:
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logger.error(f'Prefix is overnested, using first part: {prefix}')
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details = details.partition('/')[0].strip()
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if details == 'common':
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details = None
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elif group is CommitGroup.NETWORKING and details == 'rh':
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details = 'Request Handler'
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return group, details, sub_details
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def get_new_contributors(contributors_path, commits):
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contributors = set()
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if contributors_path.exists():
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for line in read_file(contributors_path).splitlines():
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author, _, _ = line.strip().partition(' (')
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authors = author.split('/')
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contributors.update(map(str.casefold, authors))
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new_contributors = set()
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for commit in commits:
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for author in commit.authors:
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author_folded = author.casefold()
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if author_folded not in contributors:
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contributors.add(author_folded)
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new_contributors.add(author)
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return sorted(new_contributors, key=str.casefold)
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def create_changelog(args):
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logging.basicConfig(
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datefmt='%Y-%m-%d %H-%M-%S', format='{asctime} | {levelname:<8} | {message}',
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level=logging.WARNING - 10 * args.verbosity, style='{', stream=sys.stderr)
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commits = CommitRange(None, args.commitish, args.default_author)
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if not args.no_override:
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if args.override_path.exists():
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overrides = json.loads(read_file(args.override_path))
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commits.apply_overrides(overrides)
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else:
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logger.warning(f'File {args.override_path.as_posix()} does not exist')
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logger.info(f'Loaded {len(commits)} commits')
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new_contributors = get_new_contributors(args.contributors_path, commits)
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if new_contributors:
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if args.contributors:
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write_file(args.contributors_path, '\n'.join(new_contributors) + '\n', mode='a')
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logger.info(f'New contributors: {", ".join(new_contributors)}')
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return Changelog(commits.groups(), args.repo, args.collapsible)
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def create_parser():
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import argparse
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parser = argparse.ArgumentParser(
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description='Create a changelog markdown from a git commit range')
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parser.add_argument(
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'commitish', default='HEAD', nargs='?',
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help='The commitish to create the range from (default: %(default)s)')
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parser.add_argument(
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'-v', '--verbosity', action='count', default=0,
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help='increase verbosity (can be used twice)')
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parser.add_argument(
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'-c', '--contributors', action='store_true',
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help='update CONTRIBUTORS file (default: %(default)s)')
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parser.add_argument(
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'--contributors-path', type=Path, default=LOCATION_PATH.parent / 'CONTRIBUTORS',
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help='path to the CONTRIBUTORS file')
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parser.add_argument(
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'--no-override', action='store_true',
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help='skip override json in commit generation (default: %(default)s)')
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parser.add_argument(
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'--override-path', type=Path, default=LOCATION_PATH / 'changelog_override.json',
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help='path to the changelog_override.json file')
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parser.add_argument(
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'--default-author', default='pukkandan',
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help='the author to use without a author indicator (default: %(default)s)')
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|
parser.add_argument(
|
|
'--repo', default='yt-dlp/yt-dlp',
|
|
help='the github repository to use for the operations (default: %(default)s)')
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|
parser.add_argument(
|
|
'--collapsible', action='store_true',
|
|
help='make changelog collapsible (default: %(default)s)')
|
|
|
|
return parser
|
|
|
|
|
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if __name__ == '__main__':
|
|
print(create_changelog(create_parser().parse_args()))
|