# SPDX-License-Identifier: GPL-2.0+
# Copyright (c) 2011 The Chromium OS Authors.
#
import command
import re
import os
import series
import subprocess
import sys
import terminal
import checkpatch
import settings
# True to use --no-decorate - we check this in Setup()
use_no_decorate = True
def LogCmd(commit_range, git_dir=None, oneline=False, reverse=False,
count=None):
"""Create a command to perform a 'git log'
Args:
commit_range: Range expression to use for log, None for none
git_dir: Path to git repositiory (None to use default)
oneline: True to use --oneline, else False
reverse: True to reverse the log (--reverse)
count: Number of commits to list, or None for no limit
Return:
List containing command and arguments to run
"""
cmd = ['git']
if git_dir:
cmd += ['--git-dir', git_dir]
cmd += ['--no-pager', 'log', '--no-color']
if oneline:
cmd.append('--oneline')
if use_no_decorate:
cmd.append('--no-decorate')
if reverse:
cmd.append('--reverse')
if count is not None:
cmd.append('-n%d' % count)
if commit_range:
cmd.append(commit_range)
# Add this in case we have a branch with the same name as a directory.
# This avoids messages like this, for example:
# fatal: ambiguous argument 'test': both revision and filename
cmd.append('--')
return cmd
def CountCommitsToBranch():
"""Returns number of commits between HEAD and the tracking branch.
This looks back to the tracking branch and works out the number of commits
since then.
Return:
Number of patches that exist on top of the branch
"""
pipe = [LogCmd('@{upstream}..', oneline=True),
['wc', '-l']]
stdout = command.RunPipe(pipe, capture=True, oneline=True).stdout
patch_count = int(stdout)
return patch_count
def NameRevision(commit_hash):
"""Gets the revision name for a commit
Args:
commit_hash: Commit hash to look up
Return:
Name of revision, if any, else None
"""
pipe = ['git', 'name-rev', commit_hash]
stdout = command.RunPipe([pipe], capture=True, oneline=True).stdout
# We expect a commit, a space, then a revision name
name = stdout.split(' ')[1].strip()
return name
def GuessUpstream(git_dir, branch):
"""Tries to guess the upstream for a branch
This lists out top commits on a branch and tries to find a suitable
upstream. It does this by looking for the first commit where
'git name-rev' returns a plain branch name, with no ! or ^ modifiers.
Args:
git_dir: Git directory containing repo
branch: Name of branch
Returns:
Tuple:
Name of upstream branch (e.g. 'upstream/master') or None if none
Warning/error message, or None if none
"""
pipe = [LogCmd(branch, git_dir=git_dir, oneline=True, count=100)]
result = command.RunPipe(pipe, capture=True, capture_stderr=True,
raise_on_error=False)
if result.return_code:
return None, "Branch '%s' not found" % branch
for line in result.stdout.splitlines()[1:]:
commit_hash = line.split(' ')[0]
name = NameRevision(commit_hash)
if '~' not in name and '^' not in name:
if name.startswith('remotes/'):
name = name[8:]
return name, "Guessing upstream as '%s'" % name
return None, "Cannot find a suitable upstream for branch '%s'" % branch
def GetUpstream(git_dir, branch):
"""Returns the name of the upstream for a branch
Args:
git_dir: Git directory containing repo
branch: Name of branch
Returns:
Tuple:
Name of upstream branch (e.g. 'upstream/master') or None if none
Warning/error message, or None if none
"""
try:
remote = command.OutputOneLine('git', '--git-dir', git_dir, 'config',
'branch.%s.remote' % branch)
merge = command.OutputOneLine('git', '--git-dir', git_dir, 'config',
'branch.%s.merge' % branch)
except:
upstream, msg = GuessUpstream(git_dir, branch)
return upstream, msg
if remote == '.':
return merge, None
elif remote and merge:
leaf = merge.split('/')[-1]
return '%s/%s' % (remote, leaf), None
else:
raise ValueError("Cannot determine upstream branch for branch "
"'%s' remote='%s', merge='%s'" % (branch, remote, merge))
def GetRangeInBranch(git_dir, branch, include_upstream=False):
"""Returns an expression for the commits in the given branch.
Args:
git_dir: Directory containing git repo
branch: Name of branch
Return:
Expression in the form 'upstream..branch' which can be used to
access the commits. If the branch does not exist, returns None.
"""
upstream, msg = GetUpstream(git_dir, branch)
if not upstream:
return None, msg
rstr = '%s%s..%s' % (upstream, '~' if include_upstream else '', branch)
return rstr, msg
def CountCommitsInRange(git_dir, range_expr):
"""Returns the number of commits in the given range.
Args:
git_dir: Directory containing git repo
range_expr: Range to check
Return:
Number of patches that exist in the supplied rangem or None if none
were found
"""
pipe = [LogCmd(range_expr, git_dir=git_dir, oneline=True)]
result = command.RunPipe(pipe, capture=True, capture_stderr=True,
raise_on_error=False)
if result.return_code:
return None, "Range '%s' not found or is invalid" % range_expr
patch_count = len(result.stdout.splitlines())
return patch_count, None
def CountCommitsInBranch(git_dir, branch, include_upstream=False):
"""Returns the number of commits in the given branch.
Args:
git_dir: Directory containing git repo
branch: Name of branch
Return:
Number of patches that exist on top of the branch, or None if the
branch does not exist.
"""
range_expr, msg = GetRangeInBranch(git_dir, branch, include_upstream)
if not range_expr:
return None, msg
return CountCommitsInRange(git_dir, range_expr)
def CountCommits(commit_range):
"""Returns the number of commits in the given range.
Args:
commit_range: Range of commits to count (e.g. 'HEAD..base')
Return:
Number of patches that exist on top of the branch
"""
pipe = [LogCmd(commit_range, oneline=True),
['wc', '-l']]
stdout = command.RunPipe(pipe, capture=True, oneline=True).stdout
patch_count = int(stdout)
return patch_count
def Checkout(commit_hash, git_dir=None, work_tree=None, force=False):
"""Checkout the selected commit for this build
Args:
commit_hash: Commit hash to check out
"""
pipe = ['git']
if git_dir:
pipe.extend(['--git-dir', git_dir])
if work_tree:
pipe.extend(['--work-tree', work_tree])
pipe.append('checkout')
if force:
pipe.append('-f')
pipe.append(commit_hash)
result = command.RunPipe([pipe], capture=True, raise_on_error=False,
capture_stderr=True)
if result.return_code != 0:
raise OSError('git checkout (%s): %s' % (pipe, result.stderr))
def Clone(git_dir, output_dir):
"""Checkout the selected commit for this build
Args:
commit_hash: Commit hash to check out
"""
pipe = ['git', 'clone', git_dir, '.']
result = command.RunPipe([pipe], capture=True, cwd=output_dir,
capture_stderr=True)
if result.return_code != 0:
raise OSError('git clone: %s' % result.stderr)
def Fetch(git_dir=None, work_tree=None):
"""Fetch from the origin repo
Args:
commit_hash: Commit hash to check out
"""
pipe = ['git']
if git_dir:
pipe.extend(['--git-dir', git_dir])
if work_tree:
pipe.extend(['--work-tree', work_tree])
pipe.append('fetch')
result = command.RunPipe([pipe], capture=True, capture_stderr=True)
if result.return_code != 0:
raise OSError('git fetch: %s' % result.stderr)
def CreatePatches(start, count, series):
"""Create a series of patches from the top of the current branch.
The patch files are written to the current directory using
git format-patch.
Args:
start: Commit to start from: 0=HEAD, 1=next one, etc.
count: number of commits to include
Return:
Filename of cover letter
List of filenames of patch files
"""
if series.get('version'):
version = '%s ' % series['version']
cmd = ['git', 'format-patch', '-M', '--signoff']
if series.get('cover'):
cmd.append('--cover-letter')
prefix = series.GetPatchPrefix()
if prefix:
cmd += ['--subject-prefix=%s' % prefix]
cmd += ['HEAD~%d..HEAD~%d' % (start + count, start)]
stdout = command.RunList(cmd)
files = stdout.splitlines()
# We have an extra file if there is a cover letter
if series.get('cover'):
return files[0], files[1:]
else:
return None, files
def BuildEmailList(in_list, tag=None, alias=None, raise_on_error=True):
"""Build a list of email addresses based on an input list.
Takes a list of email addresses and aliases, and turns this into a list
of only email address, by resolving any aliases that are present.
If the tag is given, then each email address is prepended with this
tag and a space. If the tag starts with a minus sign (indicating a
command line parameter) then the email address is quoted.
Args:
in_list: List of aliases/email addresses
tag: Text to put before each address
alias: Alias dictionary
raise_on_error: True to raise an error when an alias fails to match,
False to just print a message.
Returns:
List of email addresses
>>> alias = {}
>>> alias['fred'] = ['f.bloggs@napier.co.nz']
>>> alias['john'] = ['j.bloggs@napier.co.nz']
>>> alias['mary'] = ['Mary Poppins <m.poppins@cloud.net>']
>>> alias['boys'] = ['fred', ' john']
>>> alias['all'] = ['fred ', 'john', ' mary ']
>>> BuildEmailList(['john', 'mary'], None, alias)
['j.bloggs@napier.co.nz', 'Mary Poppins <m.poppins@cloud.net>']
>>> BuildEmailList(['john', 'mary'], '--to', alias)
['--to "j.bloggs@napier.co.nz"', \
'--to "Mary Poppins <m.poppins@cloud.net>"']
>>> BuildEmailList(['john', 'mary'], 'Cc', alias)
['Cc j.bloggs@napier.co.nz', 'Cc Mary Poppins <m.poppins@cloud.net>']
"""
quote = '"' if tag and tag[0] == '-' else ''
raw = []
for item in in_list:
raw += LookupEmail(item, alias, raise_on_error=raise_on_error)
result = []
for item in raw:
if not item in result:
result.append(item)
if tag:
return ['%s %s%s%s' % (tag, quote, email, quote) for email in result]
return result
def EmailPatches(series, cover_fname, args, dry_run, raise_on_error, cc_fname,
self_only=False, alias=None, in_reply_to=None, thread=False,
smtp_server=None):
"""Email a patch series.
Args:
series: Series object containing destination info
cover_fname: filename of cover letter
args: list of filenames of patch files
dry_run: Just return the command that would be run
raise_on_error: True to raise an error when an alias fails to match,
False to just print a message.
cc_fname: Filename of Cc file for per-commit Cc
self_only: True to just email to yourself as a test
in_reply_to: If set we'll pass this to git as --in-reply-to.
Should be a message ID that this is in reply to.
thread: True to add --thread to git send-email (make
all patches reply to cover-letter or first patch in series)
smtp_server: SMTP server to use to send patches
Returns:
Git command that was/would be run
# For the duration of this doctest pretend that we ran patman with ./patman
>>> _old_argv0 = sys.argv[0]
>>> sys.argv[0] = './patman'
>>> alias = {}
>>> alias['fred'] = ['f.bloggs@napier.co.nz']
>>> alias['john'] = ['j.bloggs@napier.co.nz']
>>> alias['mary'] = ['m.poppins@cloud.net']
>>> alias['boys'] = ['fred', ' john']
>>> alias['all'] = ['fred ', 'john', ' mary ']
>>> alias[os.getenv('USER')] = ['this-is-me@me.com']
>>> series = series.Series()
>>> series.to = ['fred']
>>> series.cc = ['mary']
>>> EmailPatches(series, 'cover', ['p1', 'p2'], True, True, 'cc-fname', \
False, alias)
'git send-email --annotate --to "f.bloggs@napier.co.nz" --cc \
"m.poppins@cloud.net" --cc-cmd "./patman --cc-cmd cc-fname" cover p1 p2'
>>> EmailPatches(series, None, ['p1'], True, True, 'cc-fname', False, \
alias)
'git send-email --annotate --to "f.bloggs@napier.co.nz" --cc \
"m.poppins@cloud.net" --cc-cmd "./patman --cc-cmd cc-fname" p1'
>>> series.cc = ['all']
>>> EmailPatches(series, 'cover', ['p1', 'p2'], True, True, 'cc-fname', \
True, alias)
'git send-email --annotate --to "this-is-me@me.com" --cc-cmd "./patman \
--cc-cmd cc-fname" cover p1 p2'
>>> EmailPatches(series, 'cover', ['p1', 'p2'], True, True, 'cc-fname', \
False, alias)
'git send-email --annotate --to "f.bloggs@napier.co.nz" --cc \
"f.bloggs@napier.co.nz" --cc "j.bloggs@napier.co.nz" --cc \
"m.poppins@cloud.net" --cc-cmd "./patman --cc-cmd cc-fname" cover p1 p2'
# Restore argv[0] since we clobbered it.
>>> sys.argv[0] = _old_argv0
"""
to = BuildEmailList(series.get('to'), '--to', alias, raise_on_error)
if not to:
git_config_to = command.Output('git', 'config', 'sendemail.to',
raise_on_error=False)
if not git_config_to:
print ("No recipient.\n"
"Please add something like this to a commit\n"
"Series-to: Fred Bloggs <f.blogs@napier.co.nz>\n"
"Or do something like this\n"
"git config sendemail.to u-boot@lists.denx.de")
return
cc = BuildEmailList(list(set(series.get('cc')) - set(series.get('to'))),
'--cc', alias, raise_on_error)
if self_only:
to = BuildEmailList([os.getenv('USER')], '--to', alias, raise_on_error)
cc = []
cmd = ['git', 'send-email', '--annotate']
if smtp_server:
cmd.append('--smtp-server=%s' % smtp_server)
if in_reply_to:
if type(in_reply_to) != str:
in_reply_to = in_reply_to.encode('utf-8')
cmd.append('--in-reply-to="%s"' % in_reply_to)
if thread:
cmd.append('--thread')
cmd += to
cmd += cc
cmd += ['--cc-cmd', '"%s --cc-cmd %s"' % (sys.argv[0], cc_fname)]
if cover_fname:
cmd.append(cover_fname)
cmd += args
cmdstr = ' '.join(cmd)
if not dry_run:
os.system(cmdstr)
return cmdstr
def LookupEmail(lookup_name, alias=None, raise_on_error=True, level=0):
"""If an email address is an alias, look it up and return the full name
TODO: Why not just use git's own alias feature?
Args:
lookup_name: Alias or email address to look up
alias: Dictionary containing aliases (None to use settings default)
raise_on_error: True to raise an error when an alias fails to match,
False to just print a message.
Returns:
tuple:
list containing a list of email addresses
Raises:
OSError if a recursive alias reference was found
ValueError if an alias was not found
>>> alias = {}
>>> alias['fred'] = ['f.bloggs@napier.co.nz']
>>> alias['john'] = ['j.bloggs@napier.co.nz']
>>> alias['mary'] = ['m.poppins@cloud.net']
>>> alias['boys'] = ['fred', ' john', 'f.bloggs@napier.co.nz']
>>> alias['all'] = ['fred ', 'john', ' mary ']
>>> alias['loop'] = ['other', 'john', ' mary ']
>>> alias['other'] = ['loop', 'john', ' mary ']
>>> LookupEmail('mary', alias)
['m.poppins@cloud.net']
>>> LookupEmail('arthur.wellesley@howe.ro.uk', alias)
['arthur.wellesley@howe.ro.uk']
>>> LookupEmail('boys', alias)
['f.bloggs@napier.co.nz', 'j.bloggs@napier.co.nz']
>>> LookupEmail('all', alias)
['f.bloggs@napier.co.nz', 'j.bloggs@napier.co.nz', 'm.poppins@cloud.net']
>>> LookupEmail('odd', alias)
Traceback (most recent call last):
...
ValueError: Alias 'odd' not found
>>> LookupEmail('loop', alias)
Traceback (most recent call last):
...
OSError: Recursive email alias at 'other'
>>> LookupEmail('odd', alias, raise_on_error=False)
Alias 'odd' not found
[]
>>> # In this case the loop part will effectively be ignored.
>>> LookupEmail('loop', alias, raise_on_error=False)
Recursive email alias at 'other'
Recursive email alias at 'john'
Recursive email alias at 'mary'
['j.bloggs@napier.co.nz', 'm.poppins@cloud.net']
"""
if not alias:
alias = settings.alias
lookup_name = lookup_name.strip()
if '@' in lookup_name: # Perhaps a real email address
return [lookup_name]
lookup_name = lookup_name.lower()
col = terminal.Color()
out_list = []
if level > 10:
msg = "Recursive email alias at '%s'" % lookup_name
if raise_on_error:
raise OSError(msg)
else:
print(col.Color(col.RED, msg))
return out_list
if lookup_name:
if not lookup_name in alias:
msg = "Alias '%s' not found" % lookup_name
if raise_on_error:
raise ValueError(msg)
else:
print(col.Color(col.RED, msg))
return out_list
for item in alias[lookup_name]:
todo = LookupEmail(item, alias, raise_on_error, level + 1)
for new_item in todo:
if not new_item in out_list:
out_list.append(new_item)
#print("No match for alias '%s'" % lookup_name)
return out_list
def GetTopLevel():
"""Return name of top-level directory for this git repo.
Returns:
Full path to git top-level directory
This test makes sure that we are running tests in the right subdir
>>> os.path.realpath(os.path.dirname(__file__)) == \
os.path.join(GetTopLevel(), 'tools', 'patman')
True
"""
return command.OutputOneLine('git', 'rev-parse', '--show-toplevel')
def GetAliasFile():
"""Gets the name of the git alias file.
Returns:
Filename of git alias file, or None if none
"""
fname = command.OutputOneLine('git', 'config', 'sendemail.aliasesfile',
raise_on_error=False)
if fname:
fname = os.path.join(GetTopLevel(), fname.strip())
return fname
def GetDefaultUserName():
"""Gets the user.name from .gitconfig file.
Returns:
User name found in .gitconfig file, or None if none
"""
uname = command.OutputOneLine('git', 'config', '--global', 'user.name')
return uname
def GetDefaultUserEmail():
"""Gets the user.email from the global .gitconfig file.
Returns:
User's email found in .gitconfig file, or None if none
"""
uemail = command.OutputOneLine('git', 'config', '--global', 'user.email')
return uemail
def GetDefaultSubjectPrefix():
"""Gets the format.subjectprefix from local .git/config file.
Returns:
Subject prefix found in local .git/config file, or None if none
"""
sub_prefix = command.OutputOneLine('git', 'config', 'format.subjectprefix',
raise_on_error=False)
return sub_prefix
def Setup():
"""Set up git utils, by reading the alias files."""
# Check for a git alias file also
global use_no_decorate
alias_fname = GetAliasFile()
if alias_fname:
settings.ReadGitAliases(alias_fname)
cmd = LogCmd(None, count=0)
use_no_decorate = (command.RunPipe([cmd], raise_on_error=False)
.return_code == 0)
def GetHead():
"""Get the hash of the current HEAD
Returns:
Hash of HEAD
"""
return command.OutputOneLine('git', 'show', '-s', '--pretty=format:%H')
if __name__ == "__main__":
import doctest
doctest.testmod()