858 lines
		
	
	
		
			31 KiB
		
	
	
	
		
			Python
		
	
	
	
			
		
		
	
	
			858 lines
		
	
	
		
			31 KiB
		
	
	
	
		
			Python
		
	
	
	
| # SPDX-License-Identifier: GPL-2.0+
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| # Copyright (c) 2011 The Chromium OS Authors.
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| #
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| 
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| """Handles parsing a stream of commits/emails from 'git log' or other source"""
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| 
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| import collections
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| import datetime
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| import io
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| import math
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| import os
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| import re
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| import queue
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| import shutil
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| import tempfile
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| 
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| from patman import command
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| from patman import commit
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| from patman import gitutil
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| from patman.series import Series
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| 
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| # Tags that we detect and remove
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| RE_REMOVE = re.compile(r'^BUG=|^TEST=|^BRANCH=|^Review URL:'
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|                        r'|Reviewed-on:|Commit-\w*:')
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| 
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| # Lines which are allowed after a TEST= line
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| RE_ALLOWED_AFTER_TEST = re.compile('^Signed-off-by:')
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| 
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| # Signoffs
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| RE_SIGNOFF = re.compile('^Signed-off-by: *(.*)')
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| 
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| # Cover letter tag
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| RE_COVER = re.compile('^Cover-([a-z-]*): *(.*)')
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| 
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| # Patch series tag
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| RE_SERIES_TAG = re.compile('^Series-([a-z-]*): *(.*)')
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| 
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| # Change-Id will be used to generate the Message-Id and then be stripped
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| RE_CHANGE_ID = re.compile('^Change-Id: *(.*)')
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| 
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| # Commit series tag
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| RE_COMMIT_TAG = re.compile('^Commit-([a-z-]*): *(.*)')
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| 
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| # Commit tags that we want to collect and keep
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| RE_TAG = re.compile('^(Tested-by|Acked-by|Reviewed-by|Patch-cc|Fixes): (.*)')
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| 
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| # The start of a new commit in the git log
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| RE_COMMIT = re.compile('^commit ([0-9a-f]*)$')
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| 
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| # We detect these since checkpatch doesn't always do it
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| RE_SPACE_BEFORE_TAB = re.compile('^[+].* \t')
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| 
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| # Match indented lines for changes
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| RE_LEADING_WHITESPACE = re.compile(r'^\s')
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| 
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| # Detect a 'diff' line
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| RE_DIFF = re.compile(r'^>.*diff --git a/(.*) b/(.*)$')
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| 
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| # Detect a context line, like '> @@ -153,8 +153,13 @@ CheckPatch
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| RE_LINE = re.compile(r'>.*@@ \-(\d+),\d+ \+(\d+),\d+ @@ *(.*)')
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| 
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| # Detect line with invalid TAG
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| RE_INV_TAG = re.compile('^Serie-([a-z-]*): *(.*)')
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| 
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| # States we can be in - can we use range() and still have comments?
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| STATE_MSG_HEADER = 0        # Still in the message header
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| STATE_PATCH_SUBJECT = 1     # In patch subject (first line of log for a commit)
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| STATE_PATCH_HEADER = 2      # In patch header (after the subject)
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| STATE_DIFFS = 3             # In the diff part (past --- line)
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| 
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| class PatchStream:
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|     """Class for detecting/injecting tags in a patch or series of patches
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| 
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|     We support processing the output of 'git log' to read out the tags we
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|     are interested in. We can also process a patch file in order to remove
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|     unwanted tags or inject additional ones. These correspond to the two
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|     phases of processing.
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|     """
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|     def __init__(self, series, is_log=False):
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|         self.skip_blank = False          # True to skip a single blank line
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|         self.found_test = False          # Found a TEST= line
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|         self.lines_after_test = 0        # Number of lines found after TEST=
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|         self.linenum = 1                 # Output line number we are up to
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|         self.in_section = None           # Name of start...END section we are in
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|         self.notes = []                  # Series notes
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|         self.section = []                # The current section...END section
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|         self.series = series             # Info about the patch series
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|         self.is_log = is_log             # True if indent like git log
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|         self.in_change = None            # Name of the change list we are in
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|         self.change_version = 0          # Non-zero if we are in a change list
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|         self.change_lines = []           # Lines of the current change
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|         self.blank_count = 0             # Number of blank lines stored up
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|         self.state = STATE_MSG_HEADER    # What state are we in?
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|         self.commit = None               # Current commit
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|         # List of unquoted test blocks, each a list of str lines
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|         self.snippets = []
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|         self.cur_diff = None             # Last 'diff' line seen (str)
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|         self.cur_line = None             # Last context (@@) line seen (str)
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|         self.recent_diff = None          # 'diff' line for current snippet (str)
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|         self.recent_line = None          # '@@' line for current snippet (str)
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|         self.recent_quoted = collections.deque([], 5)
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|         self.recent_unquoted = queue.Queue()
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|         self.was_quoted = None
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| 
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|     @staticmethod
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|     def process_text(text, is_comment=False):
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|         """Process some text through this class using a default Commit/Series
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| 
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|         Args:
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|             text (str): Text to parse
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|             is_comment (bool): True if this is a comment rather than a patch.
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|                 If True, PatchStream doesn't expect a patch subject at the
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|                 start, but jumps straight into the body
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| 
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|         Returns:
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|             PatchStream: object with results
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|         """
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|         pstrm = PatchStream(Series())
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|         pstrm.commit = commit.Commit(None)
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|         infd = io.StringIO(text)
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|         outfd = io.StringIO()
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|         if is_comment:
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|             pstrm.state = STATE_PATCH_HEADER
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|         pstrm.process_stream(infd, outfd)
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|         return pstrm
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| 
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|     def _add_warn(self, warn):
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|         """Add a new warning to report to the user about the current commit
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| 
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|         The new warning is added to the current commit if not already present.
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| 
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|         Args:
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|             warn (str): Warning to report
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| 
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|         Raises:
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|             ValueError: Warning is generated with no commit associated
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|         """
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|         if not self.commit:
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|             print('Warning outside commit: %s' % warn)
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|         elif warn not in self.commit.warn:
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|             self.commit.warn.append(warn)
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| 
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|     def _add_to_series(self, line, name, value):
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|         """Add a new Series-xxx tag.
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| 
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|         When a Series-xxx tag is detected, we come here to record it, if we
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|         are scanning a 'git log'.
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| 
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|         Args:
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|             line (str): Source line containing tag (useful for debug/error
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|                 messages)
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|             name (str): Tag name (part after 'Series-')
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|             value (str): Tag value (part after 'Series-xxx: ')
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|         """
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|         if name == 'notes':
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|             self.in_section = name
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|             self.skip_blank = False
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|         if self.is_log:
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|             warn = self.series.AddTag(self.commit, line, name, value)
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|             if warn:
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|                 self.commit.warn.append(warn)
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| 
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|     def _add_to_commit(self, name):
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|         """Add a new Commit-xxx tag.
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| 
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|         When a Commit-xxx tag is detected, we come here to record it.
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| 
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|         Args:
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|             name (str): Tag name (part after 'Commit-')
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|         """
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|         if name == 'notes':
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|             self.in_section = 'commit-' + name
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|             self.skip_blank = False
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| 
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|     def _add_commit_rtag(self, rtag_type, who):
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|         """Add a response tag to the current commit
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| 
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|         Args:
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|             rtag_type (str): rtag type (e.g. 'Reviewed-by')
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|             who (str): Person who gave that rtag, e.g.
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|                  'Fred Bloggs <fred@bloggs.org>'
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|         """
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|         self.commit.add_rtag(rtag_type, who)
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| 
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|     def _close_commit(self):
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|         """Save the current commit into our commit list, and reset our state"""
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|         if self.commit and self.is_log:
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|             self.series.AddCommit(self.commit)
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|             self.commit = None
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|         # If 'END' is missing in a 'Cover-letter' section, and that section
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|         # happens to show up at the very end of the commit message, this is
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|         # the chance for us to fix it up.
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|         if self.in_section == 'cover' and self.is_log:
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|             self.series.cover = self.section
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|             self.in_section = None
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|             self.skip_blank = True
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|             self.section = []
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| 
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|         self.cur_diff = None
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|         self.recent_diff = None
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|         self.recent_line = None
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| 
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|     def _parse_version(self, value, line):
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|         """Parse a version from a *-changes tag
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| 
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|         Args:
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|             value (str): Tag value (part after 'xxx-changes: '
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|             line (str): Source line containing tag
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| 
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|         Returns:
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|             int: The version as an integer
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| 
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|         Raises:
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|             ValueError: the value cannot be converted
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|         """
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|         try:
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|             return int(value)
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|         except ValueError:
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|             raise ValueError("%s: Cannot decode version info '%s'" %
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|                              (self.commit.hash, line))
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| 
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|     def _finalise_change(self):
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|         """_finalise a (multi-line) change and add it to the series or commit"""
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|         if not self.change_lines:
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|             return
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|         change = '\n'.join(self.change_lines)
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| 
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|         if self.in_change == 'Series':
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|             self.series.AddChange(self.change_version, self.commit, change)
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|         elif self.in_change == 'Cover':
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|             self.series.AddChange(self.change_version, None, change)
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|         elif self.in_change == 'Commit':
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|             self.commit.add_change(self.change_version, change)
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|         self.change_lines = []
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| 
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|     def _finalise_snippet(self):
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|         """Finish off a snippet and add it to the list
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| 
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|         This is called when we get to the end of a snippet, i.e. the we enter
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|         the next block of quoted text:
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| 
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|             This is a comment from someone.
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| 
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|             Something else
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| 
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|             > Now we have some code          <----- end of snippet
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|             > more code
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| 
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|             Now a comment about the above code
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| 
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|         This adds the snippet to our list
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|         """
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|         quoted_lines = []
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|         while self.recent_quoted:
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|             quoted_lines.append(self.recent_quoted.popleft())
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|         unquoted_lines = []
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|         valid = False
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|         while not self.recent_unquoted.empty():
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|             text = self.recent_unquoted.get()
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|             if not (text.startswith('On ') and text.endswith('wrote:')):
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|                 unquoted_lines.append(text)
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|             if text:
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|                 valid = True
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|         if valid:
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|             lines = []
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|             if self.recent_diff:
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|                 lines.append('> File: %s' % self.recent_diff)
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|             if self.recent_line:
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|                 out = '> Line: %s / %s' % self.recent_line[:2]
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|                 if self.recent_line[2]:
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|                     out += ': %s' % self.recent_line[2]
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|                 lines.append(out)
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|             lines += quoted_lines + unquoted_lines
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|             if lines:
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|                 self.snippets.append(lines)
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| 
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|     def process_line(self, line):
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|         """Process a single line of a patch file or commit log
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| 
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|         This process a line and returns a list of lines to output. The list
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|         may be empty or may contain multiple output lines.
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| 
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|         This is where all the complicated logic is located. The class's
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|         state is used to move between different states and detect things
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|         properly.
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| 
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|         We can be in one of two modes:
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|             self.is_log == True: This is 'git log' mode, where most output is
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|                 indented by 4 characters and we are scanning for tags
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| 
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|             self.is_log == False: This is 'patch' mode, where we already have
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|                 all the tags, and are processing patches to remove junk we
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|                 don't want, and add things we think are required.
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| 
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|         Args:
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|             line (str): text line to process
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| 
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|         Returns:
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|             list: list of output lines, or [] if nothing should be output
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| 
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|         Raises:
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|             ValueError: a fatal error occurred while parsing, e.g. an END
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|                 without a starting tag, or two commits with two change IDs
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|         """
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|         # Initially we have no output. Prepare the input line string
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|         out = []
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|         line = line.rstrip('\n')
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| 
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|         commit_match = RE_COMMIT.match(line) if self.is_log else None
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| 
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|         if self.is_log:
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|             if line[:4] == '    ':
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|                 line = line[4:]
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| 
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|         # Handle state transition and skipping blank lines
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|         series_tag_match = RE_SERIES_TAG.match(line)
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|         change_id_match = RE_CHANGE_ID.match(line)
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|         commit_tag_match = RE_COMMIT_TAG.match(line)
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|         cover_match = RE_COVER.match(line)
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|         signoff_match = RE_SIGNOFF.match(line)
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|         leading_whitespace_match = RE_LEADING_WHITESPACE.match(line)
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|         diff_match = RE_DIFF.match(line)
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|         line_match = RE_LINE.match(line)
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|         invalid_match = RE_INV_TAG.match(line)
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|         tag_match = None
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|         if self.state == STATE_PATCH_HEADER:
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|             tag_match = RE_TAG.match(line)
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|         is_blank = not line.strip()
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|         if is_blank:
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|             if (self.state == STATE_MSG_HEADER
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|                     or self.state == STATE_PATCH_SUBJECT):
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|                 self.state += 1
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| 
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|             # We don't have a subject in the text stream of patch files
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|             # It has its own line with a Subject: tag
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|             if not self.is_log and self.state == STATE_PATCH_SUBJECT:
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|                 self.state += 1
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|         elif commit_match:
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|             self.state = STATE_MSG_HEADER
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| 
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|         # If a tag is detected, or a new commit starts
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|         if series_tag_match or commit_tag_match or change_id_match or \
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|            cover_match or signoff_match or self.state == STATE_MSG_HEADER:
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|             # but we are already in a section, this means 'END' is missing
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|             # for that section, fix it up.
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|             if self.in_section:
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|                 self._add_warn("Missing 'END' in section '%s'" % self.in_section)
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|                 if self.in_section == 'cover':
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|                     self.series.cover = self.section
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|                 elif self.in_section == 'notes':
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|                     if self.is_log:
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|                         self.series.notes += self.section
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|                 elif self.in_section == 'commit-notes':
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|                     if self.is_log:
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|                         self.commit.notes += self.section
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|                 else:
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|                     # This should not happen
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|                     raise ValueError("Unknown section '%s'" % self.in_section)
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|                 self.in_section = None
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|                 self.skip_blank = True
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|                 self.section = []
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|             # but we are already in a change list, that means a blank line
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|             # is missing, fix it up.
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|             if self.in_change:
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|                 self._add_warn("Missing 'blank line' in section '%s-changes'" %
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|                                self.in_change)
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|                 self._finalise_change()
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|                 self.in_change = None
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|                 self.change_version = 0
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| 
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|         # If we are in a section, keep collecting lines until we see END
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|         if self.in_section:
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|             if line == 'END':
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|                 if self.in_section == 'cover':
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|                     self.series.cover = self.section
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|                 elif self.in_section == 'notes':
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|                     if self.is_log:
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|                         self.series.notes += self.section
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|                 elif self.in_section == 'commit-notes':
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|                     if self.is_log:
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|                         self.commit.notes += self.section
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|                 else:
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|                     # This should not happen
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|                     raise ValueError("Unknown section '%s'" % self.in_section)
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|                 self.in_section = None
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|                 self.skip_blank = True
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|                 self.section = []
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|             else:
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|                 self.section.append(line)
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| 
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|         # If we are not in a section, it is an unexpected END
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|         elif line == 'END':
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|             raise ValueError("'END' wihout section")
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| 
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|         # Detect the commit subject
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|         elif not is_blank and self.state == STATE_PATCH_SUBJECT:
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|             self.commit.subject = line
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| 
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|         # Detect the tags we want to remove, and skip blank lines
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|         elif RE_REMOVE.match(line) and not commit_tag_match:
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|             self.skip_blank = True
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| 
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|             # TEST= should be the last thing in the commit, so remove
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|             # everything after it
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|             if line.startswith('TEST='):
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|                 self.found_test = True
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|         elif self.skip_blank and is_blank:
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|             self.skip_blank = False
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| 
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|         # Detect Cover-xxx tags
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|         elif cover_match:
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|             name = cover_match.group(1)
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|             value = cover_match.group(2)
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|             if name == 'letter':
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|                 self.in_section = 'cover'
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|                 self.skip_blank = False
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|             elif name == 'letter-cc':
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|                 self._add_to_series(line, 'cover-cc', value)
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|             elif name == 'changes':
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|                 self.in_change = 'Cover'
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|                 self.change_version = self._parse_version(value, line)
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| 
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|         # If we are in a change list, key collected lines until a blank one
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|         elif self.in_change:
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|             if is_blank:
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|                 # Blank line ends this change list
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|                 self._finalise_change()
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|                 self.in_change = None
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|                 self.change_version = 0
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|             elif line == '---':
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|                 self._finalise_change()
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|                 self.in_change = None
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|                 self.change_version = 0
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|                 out = self.process_line(line)
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|             elif self.is_log:
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|                 if not leading_whitespace_match:
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|                     self._finalise_change()
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|                 self.change_lines.append(line)
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|             self.skip_blank = False
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| 
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|         # Detect Series-xxx tags
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|         elif series_tag_match:
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|             name = series_tag_match.group(1)
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|             value = series_tag_match.group(2)
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|             if name == 'changes':
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|                 # value is the version number: e.g. 1, or 2
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|                 self.in_change = 'Series'
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|                 self.change_version = self._parse_version(value, line)
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|             else:
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|                 self._add_to_series(line, name, value)
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|                 self.skip_blank = True
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| 
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|         # Detect Change-Id tags
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|         elif change_id_match:
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|             value = change_id_match.group(1)
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|             if self.is_log:
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|                 if self.commit.change_id:
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|                     raise ValueError(
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|                         "%s: Two Change-Ids: '%s' vs. '%s'" %
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|                         (self.commit.hash, self.commit.change_id, value))
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|                 self.commit.change_id = value
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|             self.skip_blank = True
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| 
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|         # Detect Commit-xxx tags
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|         elif commit_tag_match:
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|             name = commit_tag_match.group(1)
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|             value = commit_tag_match.group(2)
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|             if name == 'notes':
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|                 self._add_to_commit(name)
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|                 self.skip_blank = True
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|             elif name == 'changes':
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|                 self.in_change = 'Commit'
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|                 self.change_version = self._parse_version(value, line)
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|             else:
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|                 self._add_warn('Line %d: Ignoring Commit-%s' %
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|                                (self.linenum, name))
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| 
 | |
|         # Detect invalid tags
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|         elif invalid_match:
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|             raise ValueError("Line %d: Invalid tag = '%s'" %
 | |
|                 (self.linenum, line))
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| 
 | |
|         # Detect the start of a new commit
 | |
|         elif commit_match:
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|             self._close_commit()
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|             self.commit = commit.Commit(commit_match.group(1))
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| 
 | |
|         # Detect tags in the commit message
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|         elif tag_match:
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|             rtag_type, who = tag_match.groups()
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|             self._add_commit_rtag(rtag_type, who)
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|             # Remove Tested-by self, since few will take much notice
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|             if (rtag_type == 'Tested-by' and
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|                     who.find(os.getenv('USER') + '@') != -1):
 | |
|                 self._add_warn("Ignoring '%s'" % line)
 | |
|             elif rtag_type == 'Patch-cc':
 | |
|                 self.commit.add_cc(who.split(','))
 | |
|             else:
 | |
|                 out = [line]
 | |
| 
 | |
|         # Suppress duplicate signoffs
 | |
|         elif signoff_match:
 | |
|             if (self.is_log or not self.commit or
 | |
|                     self.commit.check_duplicate_signoff(signoff_match.group(1))):
 | |
|                 out = [line]
 | |
| 
 | |
|         # Well that means this is an ordinary line
 | |
|         else:
 | |
|             # Look for space before tab
 | |
|             mat = RE_SPACE_BEFORE_TAB.match(line)
 | |
|             if mat:
 | |
|                 self._add_warn('Line %d/%d has space before tab' %
 | |
|                                (self.linenum, mat.start()))
 | |
| 
 | |
|             # OK, we have a valid non-blank line
 | |
|             out = [line]
 | |
|             self.linenum += 1
 | |
|             self.skip_blank = False
 | |
| 
 | |
|             if diff_match:
 | |
|                 self.cur_diff = diff_match.group(1)
 | |
| 
 | |
|             # If this is quoted, keep recent lines
 | |
|             if not diff_match and self.linenum > 1 and line:
 | |
|                 if line.startswith('>'):
 | |
|                     if not self.was_quoted:
 | |
|                         self._finalise_snippet()
 | |
|                         self.recent_line = None
 | |
|                     if not line_match:
 | |
|                         self.recent_quoted.append(line)
 | |
|                     self.was_quoted = True
 | |
|                     self.recent_diff = self.cur_diff
 | |
|                 else:
 | |
|                     self.recent_unquoted.put(line)
 | |
|                     self.was_quoted = False
 | |
| 
 | |
|             if line_match:
 | |
|                 self.recent_line = line_match.groups()
 | |
| 
 | |
|             if self.state == STATE_DIFFS:
 | |
|                 pass
 | |
| 
 | |
|             # If this is the start of the diffs section, emit our tags and
 | |
|             # change log
 | |
|             elif line == '---':
 | |
|                 self.state = STATE_DIFFS
 | |
| 
 | |
|                 # Output the tags (signoff first), then change list
 | |
|                 out = []
 | |
|                 log = self.series.MakeChangeLog(self.commit)
 | |
|                 out += [line]
 | |
|                 if self.commit:
 | |
|                     out += self.commit.notes
 | |
|                 out += [''] + log
 | |
|             elif self.found_test:
 | |
|                 if not RE_ALLOWED_AFTER_TEST.match(line):
 | |
|                     self.lines_after_test += 1
 | |
| 
 | |
|         return out
 | |
| 
 | |
|     def finalise(self):
 | |
|         """Close out processing of this patch stream"""
 | |
|         self._finalise_snippet()
 | |
|         self._finalise_change()
 | |
|         self._close_commit()
 | |
|         if self.lines_after_test:
 | |
|             self._add_warn('Found %d lines after TEST=' % self.lines_after_test)
 | |
| 
 | |
|     def _write_message_id(self, outfd):
 | |
|         """Write the Message-Id into the output.
 | |
| 
 | |
|         This is based on the Change-Id in the original patch, the version,
 | |
|         and the prefix.
 | |
| 
 | |
|         Args:
 | |
|             outfd (io.IOBase): Output stream file object
 | |
|         """
 | |
|         if not self.commit.change_id:
 | |
|             return
 | |
| 
 | |
|         # If the count is -1 we're testing, so use a fixed time
 | |
|         if self.commit.count == -1:
 | |
|             time_now = datetime.datetime(1999, 12, 31, 23, 59, 59)
 | |
|         else:
 | |
|             time_now = datetime.datetime.now()
 | |
| 
 | |
|         # In theory there is email.utils.make_msgid() which would be nice
 | |
|         # to use, but it already produces something way too long and thus
 | |
|         # will produce ugly commit lines if someone throws this into
 | |
|         # a "Link:" tag in the final commit.  So (sigh) roll our own.
 | |
| 
 | |
|         # Start with the time; presumably we wouldn't send the same series
 | |
|         # with the same Change-Id at the exact same second.
 | |
|         parts = [time_now.strftime("%Y%m%d%H%M%S")]
 | |
| 
 | |
|         # These seem like they would be nice to include.
 | |
|         if 'prefix' in self.series:
 | |
|             parts.append(self.series['prefix'])
 | |
|         if 'postfix' in self.series:
 | |
|             parts.append(self.series['postfix'])
 | |
|         if 'version' in self.series:
 | |
|             parts.append("v%s" % self.series['version'])
 | |
| 
 | |
|         parts.append(str(self.commit.count + 1))
 | |
| 
 | |
|         # The Change-Id must be last, right before the @
 | |
|         parts.append(self.commit.change_id)
 | |
| 
 | |
|         # Join parts together with "." and write it out.
 | |
|         outfd.write('Message-Id: <%s@changeid>\n' % '.'.join(parts))
 | |
| 
 | |
|     def process_stream(self, infd, outfd):
 | |
|         """Copy a stream from infd to outfd, filtering out unwanting things.
 | |
| 
 | |
|         This is used to process patch files one at a time.
 | |
| 
 | |
|         Args:
 | |
|             infd (io.IOBase): Input stream file object
 | |
|             outfd (io.IOBase): Output stream file object
 | |
|         """
 | |
|         # Extract the filename from each diff, for nice warnings
 | |
|         fname = None
 | |
|         last_fname = None
 | |
|         re_fname = re.compile('diff --git a/(.*) b/.*')
 | |
| 
 | |
|         self._write_message_id(outfd)
 | |
| 
 | |
|         while True:
 | |
|             line = infd.readline()
 | |
|             if not line:
 | |
|                 break
 | |
|             out = self.process_line(line)
 | |
| 
 | |
|             # Try to detect blank lines at EOF
 | |
|             for line in out:
 | |
|                 match = re_fname.match(line)
 | |
|                 if match:
 | |
|                     last_fname = fname
 | |
|                     fname = match.group(1)
 | |
|                 if line == '+':
 | |
|                     self.blank_count += 1
 | |
|                 else:
 | |
|                     if self.blank_count and (line == '-- ' or match):
 | |
|                         self._add_warn("Found possible blank line(s) at end of file '%s'" %
 | |
|                                        last_fname)
 | |
|                     outfd.write('+\n' * self.blank_count)
 | |
|                     outfd.write(line + '\n')
 | |
|                     self.blank_count = 0
 | |
|         self.finalise()
 | |
| 
 | |
| def insert_tags(msg, tags_to_emit):
 | |
|     """Add extra tags to a commit message
 | |
| 
 | |
|     The tags are added after an existing block of tags if found, otherwise at
 | |
|     the end.
 | |
| 
 | |
|     Args:
 | |
|         msg (str): Commit message
 | |
|         tags_to_emit (list): List of tags to emit, each a str
 | |
| 
 | |
|     Returns:
 | |
|         (str) new message
 | |
|     """
 | |
|     out = []
 | |
|     done = False
 | |
|     emit_tags = False
 | |
|     emit_blank = False
 | |
|     for line in msg.splitlines():
 | |
|         if not done:
 | |
|             signoff_match = RE_SIGNOFF.match(line)
 | |
|             tag_match = RE_TAG.match(line)
 | |
|             if tag_match or signoff_match:
 | |
|                 emit_tags = True
 | |
|             if emit_tags and not tag_match and not signoff_match:
 | |
|                 out += tags_to_emit
 | |
|                 emit_tags = False
 | |
|                 done = True
 | |
|             emit_blank = not (signoff_match or tag_match)
 | |
|         else:
 | |
|             emit_blank = line
 | |
|         out.append(line)
 | |
|     if not done:
 | |
|         if emit_blank:
 | |
|             out.append('')
 | |
|         out += tags_to_emit
 | |
|     return '\n'.join(out)
 | |
| 
 | |
| def get_list(commit_range, git_dir=None, count=None):
 | |
|     """Get a log of a list of comments
 | |
| 
 | |
|     This returns the output of 'git log' for the selected commits
 | |
| 
 | |
|     Args:
 | |
|         commit_range (str): Range of commits to count (e.g. 'HEAD..base')
 | |
|         git_dir (str): Path to git repositiory (None to use default)
 | |
|         count (int): Number of commits to list, or None for no limit
 | |
| 
 | |
|     Returns
 | |
|         str: String containing the contents of the git log
 | |
|     """
 | |
|     params = gitutil.log_cmd(commit_range, reverse=True, count=count,
 | |
|                             git_dir=git_dir)
 | |
|     return command.run_pipe([params], capture=True).stdout
 | |
| 
 | |
| def get_metadata_for_list(commit_range, git_dir=None, count=None,
 | |
|                           series=None, allow_overwrite=False):
 | |
|     """Reads out patch series metadata from the commits
 | |
| 
 | |
|     This does a 'git log' on the relevant commits and pulls out the tags we
 | |
|     are interested in.
 | |
| 
 | |
|     Args:
 | |
|         commit_range (str): Range of commits to count (e.g. 'HEAD..base')
 | |
|         git_dir (str): Path to git repositiory (None to use default)
 | |
|         count (int): Number of commits to list, or None for no limit
 | |
|         series (Series): Object to add information into. By default a new series
 | |
|             is started.
 | |
|         allow_overwrite (bool): Allow tags to overwrite an existing tag
 | |
| 
 | |
|     Returns:
 | |
|         Series: Object containing information about the commits.
 | |
|     """
 | |
|     if not series:
 | |
|         series = Series()
 | |
|     series.allow_overwrite = allow_overwrite
 | |
|     stdout = get_list(commit_range, git_dir, count)
 | |
|     pst = PatchStream(series, is_log=True)
 | |
|     for line in stdout.splitlines():
 | |
|         pst.process_line(line)
 | |
|     pst.finalise()
 | |
|     return series
 | |
| 
 | |
| def get_metadata(branch, start, count):
 | |
|     """Reads out patch series metadata from the commits
 | |
| 
 | |
|     This does a 'git log' on the relevant commits and pulls out the tags we
 | |
|     are interested in.
 | |
| 
 | |
|     Args:
 | |
|         branch (str): Branch to use (None for current branch)
 | |
|         start (int): Commit to start from: 0=branch HEAD, 1=next one, etc.
 | |
|         count (int): Number of commits to list
 | |
| 
 | |
|     Returns:
 | |
|         Series: Object containing information about the commits.
 | |
|     """
 | |
|     return get_metadata_for_list(
 | |
|         '%s~%d' % (branch if branch else 'HEAD', start), None, count)
 | |
| 
 | |
| def get_metadata_for_test(text):
 | |
|     """Process metadata from a file containing a git log. Used for tests
 | |
| 
 | |
|     Args:
 | |
|         text:
 | |
| 
 | |
|     Returns:
 | |
|         Series: Object containing information about the commits.
 | |
|     """
 | |
|     series = Series()
 | |
|     pst = PatchStream(series, is_log=True)
 | |
|     for line in text.splitlines():
 | |
|         pst.process_line(line)
 | |
|     pst.finalise()
 | |
|     return series
 | |
| 
 | |
| def fix_patch(backup_dir, fname, series, cmt):
 | |
|     """Fix up a patch file, by adding/removing as required.
 | |
| 
 | |
|     We remove our tags from the patch file, insert changes lists, etc.
 | |
|     The patch file is processed in place, and overwritten.
 | |
| 
 | |
|     A backup file is put into backup_dir (if not None).
 | |
| 
 | |
|     Args:
 | |
|         backup_dir (str): Path to directory to use to backup the file
 | |
|         fname (str): Filename to patch file to process
 | |
|         series (Series): Series information about this patch set
 | |
|         cmt (Commit): Commit object for this patch file
 | |
| 
 | |
|     Return:
 | |
|         list: A list of errors, each str, or [] if all ok.
 | |
|     """
 | |
|     handle, tmpname = tempfile.mkstemp()
 | |
|     outfd = os.fdopen(handle, 'w', encoding='utf-8')
 | |
|     infd = open(fname, 'r', encoding='utf-8')
 | |
|     pst = PatchStream(series)
 | |
|     pst.commit = cmt
 | |
|     pst.process_stream(infd, outfd)
 | |
|     infd.close()
 | |
|     outfd.close()
 | |
| 
 | |
|     # Create a backup file if required
 | |
|     if backup_dir:
 | |
|         shutil.copy(fname, os.path.join(backup_dir, os.path.basename(fname)))
 | |
|     shutil.move(tmpname, fname)
 | |
|     return cmt.warn
 | |
| 
 | |
| def fix_patches(series, fnames):
 | |
|     """Fix up a list of patches identified by filenames
 | |
| 
 | |
|     The patch files are processed in place, and overwritten.
 | |
| 
 | |
|     Args:
 | |
|         series (Series): The Series object
 | |
|         fnames (:type: list of str): List of patch files to process
 | |
|     """
 | |
|     # Current workflow creates patches, so we shouldn't need a backup
 | |
|     backup_dir = None  #tempfile.mkdtemp('clean-patch')
 | |
|     count = 0
 | |
|     for fname in fnames:
 | |
|         cmt = series.commits[count]
 | |
|         cmt.patch = fname
 | |
|         cmt.count = count
 | |
|         result = fix_patch(backup_dir, fname, series, cmt)
 | |
|         if result:
 | |
|             print('%d warning%s for %s:' %
 | |
|                   (len(result), 's' if len(result) > 1 else '', fname))
 | |
|             for warn in result:
 | |
|                 print('\t%s' % warn)
 | |
|             print()
 | |
|         count += 1
 | |
|     print('Cleaned %d patch%s' % (count, 'es' if count > 1 else ''))
 | |
| 
 | |
| def insert_cover_letter(fname, series, count):
 | |
|     """Inserts a cover letter with the required info into patch 0
 | |
| 
 | |
|     Args:
 | |
|         fname (str): Input / output filename of the cover letter file
 | |
|         series (Series): Series object
 | |
|         count (int): Number of patches in the series
 | |
|     """
 | |
|     fil = open(fname, 'r')
 | |
|     lines = fil.readlines()
 | |
|     fil.close()
 | |
| 
 | |
|     fil = open(fname, 'w')
 | |
|     text = series.cover
 | |
|     prefix = series.GetPatchPrefix()
 | |
|     for line in lines:
 | |
|         if line.startswith('Subject:'):
 | |
|             # if more than 10 or 100 patches, it should say 00/xx, 000/xxx, etc
 | |
|             zero_repeat = int(math.log10(count)) + 1
 | |
|             zero = '0' * zero_repeat
 | |
|             line = 'Subject: [%s %s/%d] %s\n' % (prefix, zero, count, text[0])
 | |
| 
 | |
|         # Insert our cover letter
 | |
|         elif line.startswith('*** BLURB HERE ***'):
 | |
|             # First the blurb test
 | |
|             line = '\n'.join(text[1:]) + '\n'
 | |
|             if series.get('notes'):
 | |
|                 line += '\n'.join(series.notes) + '\n'
 | |
| 
 | |
|             # Now the change list
 | |
|             out = series.MakeChangeLog(None)
 | |
|             line += '\n' + '\n'.join(out)
 | |
|         fil.write(line)
 | |
|     fil.close()
 |