By default patman generates a combined changelog for the cover letter. This may not always be desireable.
Many patches may have the same changes. These can be coalesced with "Series-process-log: uniq", but this is imperfect. Similar changes like "Move foo to patch 7" will not be merged with the similar "Move foo to this patch from patch 6".
Changes may not make sense outside of the patch they are written for. For example, a change line of "Add check for bar" does not make sense outside of the context in which bar might be checked for. Some changes like "New" or "Lint" may be repeated many times throughout different change logs, but carry no useful information in a summary.
Lastly, I like to summarize the broad strokes of the changes I have made in the cover letter, while documenting all the details in the appropriate patches. I think this make it easier to get a good feel for what has changed, without making it difficult to wade through every change in the whole series.
This patch adds two new tags to add changelog entries which only appear in the cover letter, or only appear in the commit. Changes documented with "Commit-changes" will only appear in the commit, and will not appear in the cover letter. Changes documented with "Cover-changes" will not appear in any commit, and will only appear in the cover letter.
Signed-off-by: Sean Anderson seanga2@gmail.com ---
Changes in v2: - Add documentation for new tags - Switch to using commit tags for changelog control, instead of command-line options
tools/patman/README | 17 +++++++++ tools/patman/patchstream.py | 71 ++++++++++++++++++++++--------------- tools/patman/patman.py | 2 +- tools/patman/series.py | 13 +++++-- 4 files changed, 72 insertions(+), 31 deletions(-)
diff --git a/tools/patman/README b/tools/patman/README index 02d5829744..ce912aacbb 100644 --- a/tools/patman/README +++ b/tools/patman/README @@ -247,6 +247,23 @@ Series-changes: n to update the log there and then, knowing that the script will do the rest.
+Commit-changes: n +- This line will not appear in the cover-letter changelog +<blank line> + This tag is like Series-changes, except changes in this changelog will + only appear in the changelog of the commit this tag is in. This is + useful when you want to add notes which may not make sense in the cover + letter. For example, you can have short changes such as "New" or + "Lint". + +Cover-changes: n +- This line will only appear in the cover letter +<blank line> + This tag is like Series-changes, except changes in this changelog will + only appear in the cover-letter changelog. This is useful to summarize + changes made with Commit-changes, or to add additional context to + changes. + Patch-cc: Their Name <email> This copies a single patch to another email address. Note that the Cc: used by git send-email is ignored by patman, but will be diff --git a/tools/patman/patchstream.py b/tools/patman/patchstream.py index a83497d79f..f29ad87e70 100644 --- a/tools/patman/patchstream.py +++ b/tools/patman/patchstream.py @@ -24,11 +24,8 @@ re_allowed_after_test = re.compile('^Signed-off-by:') # Signoffs re_signoff = re.compile('^Signed-off-by: *(.*)')
-# The start of the cover letter -re_cover = re.compile('^Cover-letter:') - -# A cover letter Cc -re_cover_cc = re.compile('^Cover-letter-cc: *(.*)') +# Cover letter tag +re_cover = re.compile('^Cover-([a-z-]*): *(.*)')
# Patch series tag re_series_tag = re.compile('^Series-([a-z-]*): *(.*)') @@ -65,7 +62,7 @@ class PatchStream: def __init__(self, series, name=None, is_log=False): self.skip_blank = False # True to skip a single blank line self.found_test = False # Found a TEST= line - self.lines_after_test = 0 # MNumber of lines found after TEST= + self.lines_after_test = 0 # Number of lines found after TEST= self.warn = [] # List of warnings we have collected self.linenum = 1 # Output line number we are up to self.in_section = None # Name of start...END section we are in @@ -73,7 +70,8 @@ class PatchStream: self.section = [] # The current section...END section self.series = series # Info about the patch series self.is_log = is_log # True if indent like git log - self.in_change = 0 # Non-zero if we are in a change list + self.in_change = None # Name of the change list we are in + self.change_version = 0 # Non-zero if we are in a change list self.blank_count = 0 # Number of blank lines stored up self.state = STATE_MSG_HEADER # What state are we in? self.signoff = [] # Contents of signoff line @@ -124,6 +122,14 @@ class PatchStream: self.skip_blank = True self.section = []
+ def ParseVersion(self, value, line): + """Parse a version from a *-changes tag""" + try: + return int(value) + except ValueError as str: + raise ValueError("%s: Cannot decode version info '%s'" % + (self.commit.hash, line)) + def ProcessLine(self, line): """Process a single line of a patch file or commit log
@@ -163,7 +169,6 @@ class PatchStream: change_id_match = re_change_id.match(line) commit_tag_match = re_commit_tag.match(line) cover_match = re_cover.match(line) - cover_cc_match = re_cover_cc.match(line) signoff_match = re_signoff.match(line) tag_match = None if self.state == STATE_PATCH_HEADER: @@ -183,8 +188,7 @@ class PatchStream:
# If a tag is detected, or a new commit starts if series_tag_match or commit_tag_match or change_id_match or \ - cover_match or cover_cc_match or signoff_match or \ - self.state == STATE_MSG_HEADER: + cover_match or signoff_match or self.state == STATE_MSG_HEADER: # but we are already in a section, this means 'END' is missing # for that section, fix it up. if self.in_section: @@ -205,8 +209,9 @@ class PatchStream: # but we are already in a change list, that means a blank line # is missing, fix it up. if self.in_change: - self.warn.append("Missing 'blank line' in section 'Series-changes'") - self.in_change = 0 + self.warn.append("Missing 'blank line' in section '%s-changes'" % self.in_change) + self.in_change = None + self.change_version = 0
# If we are in a section, keep collecting lines until we see END if self.in_section: @@ -242,26 +247,37 @@ class PatchStream: elif self.skip_blank and is_blank: self.skip_blank = False
- # Detect the start of a cover letter section + # Detect Cover-xxx tags elif cover_match: - self.in_section = 'cover' - self.skip_blank = False - - elif cover_cc_match: - value = cover_cc_match.group(1) - self.AddToSeries(line, 'cover-cc', value) + name = cover_match.group(1) + value = cover_match.group(2) + if name == 'letter': + self.in_section = 'cover' + self.skip_blank = False + elif name == 'letter-cc': + self.AddToSeries(line, 'cover-cc', value) + elif name == 'changes': + self.in_change = 'Cover' + self.change_version = self.ParseVersion(value, line)
# If we are in a change list, key collected lines until a blank one elif self.in_change: if is_blank: # Blank line ends this change list - self.in_change = 0 + self.in_change = None + self.change_version = 0 elif line == '---': - self.in_change = 0 + self.in_change = None + self.change_version = 0 out = self.ProcessLine(line) else: if self.is_log: - self.series.AddChange(self.in_change, self.commit, line) + if self.in_change == 'Series': + self.series.AddChange(self.change_version, self.commit, line) + elif self.in_change == 'Cover': + self.series.AddChange(self.change_version, None, line) + elif self.in_change == 'Commit': + self.commit.AddChange(self.change_version, line) self.skip_blank = False
# Detect Series-xxx tags @@ -270,12 +286,8 @@ class PatchStream: value = series_tag_match.group(2) if name == 'changes': # value is the version number: e.g. 1, or 2 - try: - value = int(value) - except ValueError as str: - raise ValueError("%s: Cannot decode version info '%s'" % - (self.commit.hash, line)) - self.in_change = int(value) + self.in_change = 'Series' + self.change_version = self.ParseVersion(value, line) else: self.AddToSeries(line, name, value) self.skip_blank = True @@ -297,6 +309,9 @@ class PatchStream: if name == 'notes': self.AddToCommit(line, name, value) self.skip_blank = True + elif name == 'changes': + self.in_change = 'Commit' + self.change_version = self.ParseVersion(value, line)
# Detect the start of a new commit elif commit_match: diff --git a/tools/patman/patman.py b/tools/patman/patman.py index cf53e532dd..6ee0597ff4 100755 --- a/tools/patman/patman.py +++ b/tools/patman/patman.py @@ -61,7 +61,7 @@ parser.add_option('--no-check', action='store_false', dest='check_patch', default=True, help="Don't check for patch compliance") parser.add_option('--no-tags', action='store_false', dest='process_tags', - default=True, help="Don't process subject tags as aliaes") + default=True, help="Don't process subject tags as aliases") parser.add_option('--smtp-server', type='str', help="Specify the SMTP server to 'git send-email'") parser.add_option('-T', '--thread', action='store_true', dest='thread', diff --git a/tools/patman/series.py b/tools/patman/series.py index ca42e5e966..4fa06344b5 100644 --- a/tools/patman/series.py +++ b/tools/patman/series.py @@ -4,6 +4,7 @@
from __future__ import print_function
+import collections import itertools import os
@@ -158,7 +159,15 @@ class Series(dict): - Fix the widget - Jog the dial """ - versions = sorted(self.changes, reverse=True) + # Collect changes from the series and this commit + changes = collections.defaultdict(list) + for version, changelist in self.changes.items(): + changes[version] += changelist + if commit: + for version, changelist in commit.changes.items(): + changes[version] += [[commit, text] for text in changelist] + + versions = sorted(changes, reverse=True) newest_version = 1 try: newest_version = max(int(self.version), versions[0]) @@ -171,7 +180,7 @@ class Series(dict): need_blank = False for version in versions: out = [] - for this_commit, text in self.changes[version]: + for this_commit, text in changes[version]: if commit and this_commit != commit: continue if 'uniq' not in process_it or text not in out: