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https://github.com/brain-hackers/u-boot-brain
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![Alper Nebi Yasak](/assets/img/avatar_default.png)
This patch makes buildman create linked working trees instead of clones of the source repository, but keeps updating the older clones of the repository that might already exist. These worktrees share "everything except working directory specific files such as HEAD, index, etc." with the source repository. See the git-worktree(1) manual page for more information. If git-worktree isn't available, silently falls back to cloning the repository. Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
676 lines
23 KiB
Python
676 lines
23 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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import re
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import os
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import subprocess
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import sys
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from patman import command
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from patman import settings
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from patman import terminal
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from patman import tools
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# True to use --no-decorate - we check this in Setup()
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use_no_decorate = True
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def LogCmd(commit_range, git_dir=None, oneline=False, reverse=False,
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count=None):
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"""Create a command to perform a 'git log'
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Args:
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commit_range: Range expression to use for log, None for none
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git_dir: Path to git repository (None to use default)
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oneline: True to use --oneline, else False
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reverse: True to reverse the log (--reverse)
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count: Number of commits to list, or None for no limit
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Return:
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List containing command and arguments to run
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"""
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cmd = ['git']
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if git_dir:
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cmd += ['--git-dir', git_dir]
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cmd += ['--no-pager', 'log', '--no-color']
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if oneline:
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cmd.append('--oneline')
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if use_no_decorate:
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cmd.append('--no-decorate')
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if reverse:
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cmd.append('--reverse')
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if count is not None:
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cmd.append('-n%d' % count)
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if commit_range:
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cmd.append(commit_range)
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# Add this in case we have a branch with the same name as a directory.
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# This avoids messages like this, for example:
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# fatal: ambiguous argument 'test': both revision and filename
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cmd.append('--')
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return cmd
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def CountCommitsToBranch(branch):
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"""Returns number of commits between HEAD and the tracking branch.
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This looks back to the tracking branch and works out the number of commits
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since then.
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Args:
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branch: Branch to count from (None for current branch)
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Return:
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Number of patches that exist on top of the branch
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"""
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if branch:
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us, msg = GetUpstream('.git', branch)
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rev_range = '%s..%s' % (us, branch)
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else:
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rev_range = '@{upstream}..'
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pipe = [LogCmd(rev_range, oneline=True), ['wc', '-l']]
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stdout = command.RunPipe(pipe, capture=True, oneline=True).stdout
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patch_count = int(stdout)
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return patch_count
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def NameRevision(commit_hash):
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"""Gets the revision name for a commit
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Args:
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commit_hash: Commit hash to look up
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Return:
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Name of revision, if any, else None
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"""
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pipe = ['git', 'name-rev', commit_hash]
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stdout = command.RunPipe([pipe], capture=True, oneline=True).stdout
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# We expect a commit, a space, then a revision name
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name = stdout.split(' ')[1].strip()
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return name
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def GuessUpstream(git_dir, branch):
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"""Tries to guess the upstream for a branch
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This lists out top commits on a branch and tries to find a suitable
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upstream. It does this by looking for the first commit where
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'git name-rev' returns a plain branch name, with no ! or ^ modifiers.
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Args:
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git_dir: Git directory containing repo
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branch: Name of branch
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Returns:
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Tuple:
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Name of upstream branch (e.g. 'upstream/master') or None if none
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Warning/error message, or None if none
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"""
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pipe = [LogCmd(branch, git_dir=git_dir, oneline=True, count=100)]
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result = command.RunPipe(pipe, capture=True, capture_stderr=True,
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raise_on_error=False)
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if result.return_code:
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return None, "Branch '%s' not found" % branch
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for line in result.stdout.splitlines()[1:]:
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commit_hash = line.split(' ')[0]
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name = NameRevision(commit_hash)
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if '~' not in name and '^' not in name:
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if name.startswith('remotes/'):
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name = name[8:]
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return name, "Guessing upstream as '%s'" % name
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return None, "Cannot find a suitable upstream for branch '%s'" % branch
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def GetUpstream(git_dir, branch):
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"""Returns the name of the upstream for a branch
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Args:
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git_dir: Git directory containing repo
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branch: Name of branch
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Returns:
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Tuple:
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Name of upstream branch (e.g. 'upstream/master') or None if none
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Warning/error message, or None if none
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"""
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try:
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remote = command.OutputOneLine('git', '--git-dir', git_dir, 'config',
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'branch.%s.remote' % branch)
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merge = command.OutputOneLine('git', '--git-dir', git_dir, 'config',
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'branch.%s.merge' % branch)
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except:
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upstream, msg = GuessUpstream(git_dir, branch)
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return upstream, msg
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if remote == '.':
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return merge, None
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elif remote and merge:
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leaf = merge.split('/')[-1]
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return '%s/%s' % (remote, leaf), None
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else:
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raise ValueError("Cannot determine upstream branch for branch "
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"'%s' remote='%s', merge='%s'" % (branch, remote, merge))
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def GetRangeInBranch(git_dir, branch, include_upstream=False):
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"""Returns an expression for the commits in the given branch.
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Args:
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git_dir: Directory containing git repo
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branch: Name of branch
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Return:
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Expression in the form 'upstream..branch' which can be used to
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access the commits. If the branch does not exist, returns None.
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"""
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upstream, msg = GetUpstream(git_dir, branch)
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if not upstream:
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return None, msg
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rstr = '%s%s..%s' % (upstream, '~' if include_upstream else '', branch)
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return rstr, msg
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def CountCommitsInRange(git_dir, range_expr):
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"""Returns the number of commits in the given range.
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Args:
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git_dir: Directory containing git repo
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range_expr: Range to check
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Return:
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Number of patches that exist in the supplied range or None if none
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were found
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"""
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pipe = [LogCmd(range_expr, git_dir=git_dir, oneline=True)]
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result = command.RunPipe(pipe, capture=True, capture_stderr=True,
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raise_on_error=False)
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if result.return_code:
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return None, "Range '%s' not found or is invalid" % range_expr
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patch_count = len(result.stdout.splitlines())
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return patch_count, None
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def CountCommitsInBranch(git_dir, branch, include_upstream=False):
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"""Returns the number of commits in the given branch.
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Args:
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git_dir: Directory containing git repo
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branch: Name of branch
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Return:
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Number of patches that exist on top of the branch, or None if the
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branch does not exist.
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"""
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range_expr, msg = GetRangeInBranch(git_dir, branch, include_upstream)
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if not range_expr:
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return None, msg
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return CountCommitsInRange(git_dir, range_expr)
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def CountCommits(commit_range):
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"""Returns the number of commits in the given range.
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Args:
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commit_range: Range of commits to count (e.g. 'HEAD..base')
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Return:
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Number of patches that exist on top of the branch
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"""
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pipe = [LogCmd(commit_range, oneline=True),
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['wc', '-l']]
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stdout = command.RunPipe(pipe, capture=True, oneline=True).stdout
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patch_count = int(stdout)
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return patch_count
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def Checkout(commit_hash, git_dir=None, work_tree=None, force=False):
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"""Checkout the selected commit for this build
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Args:
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commit_hash: Commit hash to check out
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"""
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pipe = ['git']
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if git_dir:
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pipe.extend(['--git-dir', git_dir])
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if work_tree:
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pipe.extend(['--work-tree', work_tree])
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pipe.append('checkout')
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if force:
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pipe.append('-f')
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pipe.append(commit_hash)
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result = command.RunPipe([pipe], capture=True, raise_on_error=False,
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capture_stderr=True)
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if result.return_code != 0:
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raise OSError('git checkout (%s): %s' % (pipe, result.stderr))
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def Clone(git_dir, output_dir):
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"""Checkout the selected commit for this build
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Args:
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commit_hash: Commit hash to check out
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"""
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pipe = ['git', 'clone', git_dir, '.']
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result = command.RunPipe([pipe], capture=True, cwd=output_dir,
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capture_stderr=True)
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if result.return_code != 0:
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raise OSError('git clone: %s' % result.stderr)
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def Fetch(git_dir=None, work_tree=None):
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"""Fetch from the origin repo
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Args:
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commit_hash: Commit hash to check out
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"""
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pipe = ['git']
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if git_dir:
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pipe.extend(['--git-dir', git_dir])
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if work_tree:
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pipe.extend(['--work-tree', work_tree])
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pipe.append('fetch')
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result = command.RunPipe([pipe], capture=True, capture_stderr=True)
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if result.return_code != 0:
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raise OSError('git fetch: %s' % result.stderr)
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def CheckWorktreeIsAvailable(git_dir):
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"""Check if git-worktree functionality is available
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Args:
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git_dir: The repository to test in
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Returns:
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True if git-worktree commands will work, False otherwise.
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"""
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pipe = ['git', '--git-dir', git_dir, 'worktree', 'list']
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result = command.RunPipe([pipe], capture=True, capture_stderr=True,
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raise_on_error=False)
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return result.return_code == 0
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def AddWorktree(git_dir, output_dir, commit_hash=None):
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"""Create and checkout a new git worktree for this build
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Args:
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git_dir: The repository to checkout the worktree from
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output_dir: Path for the new worktree
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commit_hash: Commit hash to checkout
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"""
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# We need to pass --detach to avoid creating a new branch
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pipe = ['git', '--git-dir', git_dir, 'worktree', 'add', '.', '--detach']
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if commit_hash:
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pipe.append(commit_hash)
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result = command.RunPipe([pipe], capture=True, cwd=output_dir,
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capture_stderr=True)
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if result.return_code != 0:
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raise OSError('git worktree add: %s' % result.stderr)
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def PruneWorktrees(git_dir):
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"""Remove administrative files for deleted worktrees
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Args:
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git_dir: The repository whose deleted worktrees should be pruned
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"""
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pipe = ['git', '--git-dir', git_dir, 'worktree', 'prune']
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result = command.RunPipe([pipe], capture=True, capture_stderr=True)
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if result.return_code != 0:
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raise OSError('git worktree prune: %s' % result.stderr)
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def CreatePatches(branch, start, count, ignore_binary, series):
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"""Create a series of patches from the top of the current branch.
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The patch files are written to the current directory using
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git format-patch.
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Args:
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branch: Branch to create patches from (None for current branch)
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start: Commit to start from: 0=HEAD, 1=next one, etc.
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count: number of commits to include
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ignore_binary: Don't generate patches for binary files
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series: Series object for this series (set of patches)
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Return:
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Filename of cover letter (None if none)
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List of filenames of patch files
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"""
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if series.get('version'):
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version = '%s ' % series['version']
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cmd = ['git', 'format-patch', '-M', '--signoff']
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if ignore_binary:
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cmd.append('--no-binary')
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if series.get('cover'):
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cmd.append('--cover-letter')
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prefix = series.GetPatchPrefix()
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if prefix:
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cmd += ['--subject-prefix=%s' % prefix]
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brname = branch or 'HEAD'
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cmd += ['%s~%d..%s~%d' % (brname, start + count, brname, start)]
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stdout = command.RunList(cmd)
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files = stdout.splitlines()
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# We have an extra file if there is a cover letter
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if series.get('cover'):
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return files[0], files[1:]
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else:
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return None, files
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def BuildEmailList(in_list, tag=None, alias=None, raise_on_error=True):
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"""Build a list of email addresses based on an input list.
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Takes a list of email addresses and aliases, and turns this into a list
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of only email address, by resolving any aliases that are present.
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If the tag is given, then each email address is prepended with this
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tag and a space. If the tag starts with a minus sign (indicating a
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command line parameter) then the email address is quoted.
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Args:
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in_list: List of aliases/email addresses
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tag: Text to put before each address
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alias: Alias dictionary
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raise_on_error: True to raise an error when an alias fails to match,
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False to just print a message.
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Returns:
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List of email addresses
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>>> alias = {}
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>>> alias['fred'] = ['f.bloggs@napier.co.nz']
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>>> alias['john'] = ['j.bloggs@napier.co.nz']
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>>> alias['mary'] = ['Mary Poppins <m.poppins@cloud.net>']
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>>> alias['boys'] = ['fred', ' john']
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>>> alias['all'] = ['fred ', 'john', ' mary ']
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>>> BuildEmailList(['john', 'mary'], None, alias)
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['j.bloggs@napier.co.nz', 'Mary Poppins <m.poppins@cloud.net>']
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>>> BuildEmailList(['john', 'mary'], '--to', alias)
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['--to "j.bloggs@napier.co.nz"', \
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'--to "Mary Poppins <m.poppins@cloud.net>"']
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>>> BuildEmailList(['john', 'mary'], 'Cc', alias)
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['Cc j.bloggs@napier.co.nz', 'Cc Mary Poppins <m.poppins@cloud.net>']
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"""
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quote = '"' if tag and tag[0] == '-' else ''
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raw = []
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for item in in_list:
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raw += LookupEmail(item, alias, raise_on_error=raise_on_error)
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result = []
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for item in raw:
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item = tools.FromUnicode(item)
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if not item in result:
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result.append(item)
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if tag:
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return ['%s %s%s%s' % (tag, quote, email, quote) for email in result]
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return result
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def CheckSuppressCCConfig():
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"""Check if sendemail.suppresscc is configured correctly.
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Returns:
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True if the option is configured correctly, False otherwise.
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"""
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suppresscc = command.OutputOneLine('git', 'config', 'sendemail.suppresscc',
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raise_on_error=False)
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# Other settings should be fine.
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if suppresscc == 'all' or suppresscc == 'cccmd':
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col = terminal.Color()
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print((col.Color(col.RED, "error") +
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": git config sendemail.suppresscc set to %s\n" % (suppresscc)) +
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" patman needs --cc-cmd to be run to set the cc list.\n" +
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" Please run:\n" +
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" git config --unset sendemail.suppresscc\n" +
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" Or read the man page:\n" +
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" git send-email --help\n" +
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" and set an option that runs --cc-cmd\n")
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return False
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return True
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def EmailPatches(series, cover_fname, args, dry_run, raise_on_error, cc_fname,
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self_only=False, alias=None, in_reply_to=None, thread=False,
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smtp_server=None):
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"""Email a patch series.
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Args:
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series: Series object containing destination info
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cover_fname: filename of cover letter
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args: list of filenames of patch files
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dry_run: Just return the command that would be run
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raise_on_error: True to raise an error when an alias fails to match,
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False to just print a message.
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cc_fname: Filename of Cc file for per-commit Cc
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self_only: True to just email to yourself as a test
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in_reply_to: If set we'll pass this to git as --in-reply-to.
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Should be a message ID that this is in reply to.
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thread: True to add --thread to git send-email (make
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all patches reply to cover-letter or first patch in series)
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smtp_server: SMTP server to use to send patches
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Returns:
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Git command that was/would be run
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# For the duration of this doctest pretend that we ran patman with ./patman
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>>> _old_argv0 = sys.argv[0]
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>>> sys.argv[0] = './patman'
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>>> alias = {}
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>>> alias['fred'] = ['f.bloggs@napier.co.nz']
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>>> alias['john'] = ['j.bloggs@napier.co.nz']
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>>> alias['mary'] = ['m.poppins@cloud.net']
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>>> alias['boys'] = ['fred', ' john']
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>>> alias['all'] = ['fred ', 'john', ' mary ']
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>>> alias[os.getenv('USER')] = ['this-is-me@me.com']
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>>> series = {}
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>>> series['to'] = ['fred']
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>>> series['cc'] = ['mary']
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>>> EmailPatches(series, 'cover', ['p1', 'p2'], True, True, 'cc-fname', \
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False, alias)
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'git send-email --annotate --to "f.bloggs@napier.co.nz" --cc \
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"m.poppins@cloud.net" --cc-cmd "./patman --cc-cmd cc-fname" cover p1 p2'
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>>> EmailPatches(series, None, ['p1'], True, True, 'cc-fname', False, \
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alias)
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'git send-email --annotate --to "f.bloggs@napier.co.nz" --cc \
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"m.poppins@cloud.net" --cc-cmd "./patman --cc-cmd cc-fname" p1'
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>>> series['cc'] = ['all']
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>>> EmailPatches(series, 'cover', ['p1', 'p2'], True, True, 'cc-fname', \
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True, alias)
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'git send-email --annotate --to "this-is-me@me.com" --cc-cmd "./patman \
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--cc-cmd cc-fname" cover p1 p2'
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>>> EmailPatches(series, 'cover', ['p1', 'p2'], True, True, 'cc-fname', \
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False, alias)
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'git send-email --annotate --to "f.bloggs@napier.co.nz" --cc \
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"f.bloggs@napier.co.nz" --cc "j.bloggs@napier.co.nz" --cc \
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"m.poppins@cloud.net" --cc-cmd "./patman --cc-cmd cc-fname" cover p1 p2'
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# Restore argv[0] since we clobbered it.
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>>> sys.argv[0] = _old_argv0
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"""
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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:
|
|
cmd.append('--in-reply-to="%s"' % tools.FromUnicode(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()
|