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https://github.com/AsahiLinux/u-boot
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9994baadc0
Tidy up the extra 's' when there is only a single warning. Fix the empty print statement also. Signed-off-by: Simon Glass <sjg@chromium.org>
709 lines
26 KiB
Python
709 lines
26 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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"""Handles parsing a stream of commits/emails from 'git log' or other source"""
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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 shutil
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import tempfile
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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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# 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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# 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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# Signoffs
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RE_SIGNOFF = re.compile('^Signed-off-by: *(.*)')
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# Cover letter tag
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RE_COVER = re.compile('^Cover-([a-z-]*): *(.*)')
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# Patch series tag
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RE_SERIES_TAG = re.compile('^Series-([a-z-]*): *(.*)')
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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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# Commit series tag
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RE_COMMIT_TAG = re.compile('^Commit-([a-z-]*): *(.*)')
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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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# 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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# 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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# Match indented lines for changes
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RE_LEADING_WHITESPACE = re.compile(r'^\s')
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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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class PatchStream:
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"""Class for detecting/injecting tags in a patch or series of patches
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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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@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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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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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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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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The new warning is added to the current commit if not already present.
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Args:
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warn (str): Warning to report
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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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raise ValueError('Warning outside commit: %s' % warn)
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if warn not in self.commit.warn:
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self.commit.warn.append(warn)
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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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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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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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def _add_to_commit(self, name):
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"""Add a new Commit-xxx tag.
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When a Commit-xxx tag is detected, we come here to record it.
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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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def _add_commit_rtag(self, rtag_type, who):
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"""Add a response tag to the current commit
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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.AddRtag(rtag_type, who)
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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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def _parse_version(self, value, line):
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"""Parse a version from a *-changes tag
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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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Returns:
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int: The version as an integer
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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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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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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.AddChange(self.change_version, change)
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self.change_lines = []
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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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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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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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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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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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Args:
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line (str): text line to process
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Returns:
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list: list of output lines, or [] if nothing should be output
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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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commit_match = RE_COMMIT.match(line) if self.is_log else None
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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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# 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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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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# 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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# 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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# 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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# 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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# 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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# 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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# 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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# 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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# 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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# 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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# 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'" % self.commit.hash,
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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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# 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 the start of a new commit
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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):
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self._add_warn("Ignoring '%s'" % line)
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elif rtag_type == 'Patch-cc':
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self.commit.AddCc(who.split(','))
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else:
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out = [line]
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# Suppress duplicate signoffs
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elif signoff_match:
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if (self.is_log or not self.commit or
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self.commit.CheckDuplicateSignoff(signoff_match.group(1))):
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out = [line]
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# Well that means this is an ordinary line
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else:
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# Look for space before tab
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mat = RE_SPACE_BEFORE_TAB.match(line)
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if mat:
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self._add_warn('Line %d/%d has space before tab' %
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(self.linenum, mat.start()))
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# OK, we have a valid non-blank line
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out = [line]
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self.linenum += 1
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self.skip_blank = False
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if self.state == STATE_DIFFS:
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pass
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# If this is the start of the diffs section, emit our tags and
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# change log
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elif line == '---':
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self.state = STATE_DIFFS
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# Output the tags (signoff first), then change list
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out = []
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log = self.series.MakeChangeLog(self.commit)
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out += [line]
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if self.commit:
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out += self.commit.notes
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out += [''] + log
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elif self.found_test:
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if not RE_ALLOWED_AFTER_TEST.match(line):
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self.lines_after_test += 1
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return out
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def finalise(self):
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"""Close out processing of this patch stream"""
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self._finalise_change()
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self._close_commit()
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if self.lines_after_test:
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self._add_warn('Found %d lines after TEST=' % self.lines_after_test)
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def _write_message_id(self, outfd):
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"""Write the Message-Id into the output.
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This is based on the Change-Id in the original patch, the version,
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and the prefix.
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Args:
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outfd (io.IOBase): Output stream file object
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"""
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if not self.commit.change_id:
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return
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# If the count is -1 we're testing, so use a fixed time
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if self.commit.count == -1:
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time_now = datetime.datetime(1999, 12, 31, 23, 59, 59)
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else:
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time_now = datetime.datetime.now()
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# In theory there is email.utils.make_msgid() which would be nice
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# to use, but it already produces something way too long and thus
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# will produce ugly commit lines if someone throws this into
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# a "Link:" tag in the final commit. So (sigh) roll our own.
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# Start with the time; presumably we wouldn't send the same series
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# with the same Change-Id at the exact same second.
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parts = [time_now.strftime("%Y%m%d%H%M%S")]
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|
|
|
# These seem like they would be nice to include.
|
|
if 'prefix' in self.series:
|
|
parts.append(self.series['prefix'])
|
|
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 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
|
|
params = gitutil.LogCmd(commit_range, reverse=True, count=count,
|
|
git_dir=git_dir)
|
|
stdout = command.RunPipe([params], capture=True).stdout
|
|
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()
|