548 lines
18 KiB
Python
548 lines
18 KiB
Python
# Copyright (c) 2011 The Chromium OS Authors.
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#
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# SPDX-License-Identifier: GPL-2.0+
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#
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import command
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import re
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import os
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import series
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import subprocess
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import sys
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import terminal
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import settings
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def CountCommitsToBranch():
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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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Return:
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Number of patches that exist on top of the branch
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"""
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pipe = [['git', 'log', '--no-color', '--oneline', '--no-decorate',
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'@{upstream}..'],
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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 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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Name of upstream branch (e.g. 'upstream/master') 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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return None
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if remote == '.':
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return merge
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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)
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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 = GetUpstream(git_dir, branch)
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if not upstream:
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return None
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return '%s%s..%s' % (upstream, '~' if include_upstream else '', branch)
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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 = GetRangeInBranch(git_dir, branch, include_upstream)
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if not range_expr:
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return None
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pipe = [['git', '--git-dir', git_dir, 'log', '--oneline', '--no-decorate',
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range_expr],
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['wc', '-l']]
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result = command.RunPipe(pipe, capture=True, oneline=True)
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patch_count = int(result.stdout)
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return patch_count
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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 = [['git', 'log', '--oneline', '--no-decorate', commit_range],
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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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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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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)
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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 CreatePatches(start, count, 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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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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Return:
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Filename of cover letter
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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 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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cmd += ['HEAD~%d..HEAD~%d' % (start + count, 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 ApplyPatch(verbose, fname):
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"""Apply a patch with git am to test it
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TODO: Convert these to use command, with stderr option
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Args:
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fname: filename of patch file to apply
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"""
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cmd = ['git', 'am', fname]
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pipe = subprocess.Popen(cmd, stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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stdout, stderr = pipe.communicate()
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re_error = re.compile('^error: patch failed: (.+):(\d+)')
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for line in stderr.splitlines():
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if verbose:
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print line
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match = re_error.match(line)
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if match:
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print GetWarningMsg('warning', match.group(1), int(match.group(2)),
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'Patch failed')
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return pipe.returncode == 0, stdout
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def ApplyPatches(verbose, args, start_point):
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"""Apply the patches with git am to make sure all is well
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Args:
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verbose: Print out 'git am' output verbatim
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args: List of patch files to apply
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start_point: Number of commits back from HEAD to start applying.
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Normally this is len(args), but it can be larger if a start
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offset was given.
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"""
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error_count = 0
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col = terminal.Color()
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# Figure out our current position
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cmd = ['git', 'name-rev', 'HEAD', '--name-only']
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pipe = subprocess.Popen(cmd, stdout=subprocess.PIPE)
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stdout, stderr = pipe.communicate()
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if pipe.returncode:
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str = 'Could not find current commit name'
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print col.Color(col.RED, str)
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print stdout
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return False
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old_head = stdout.splitlines()[0]
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# Checkout the required start point
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cmd = ['git', 'checkout', 'HEAD~%d' % start_point]
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pipe = subprocess.Popen(cmd, stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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stdout, stderr = pipe.communicate()
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if pipe.returncode:
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str = 'Could not move to commit before patch series'
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print col.Color(col.RED, str)
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print stdout, stderr
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return False
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# Apply all the patches
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for fname in args:
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ok, stdout = ApplyPatch(verbose, fname)
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if not ok:
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print col.Color(col.RED, 'git am returned errors for %s: will '
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'skip this patch' % fname)
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if verbose:
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print stdout
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error_count += 1
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cmd = ['git', 'am', '--skip']
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pipe = subprocess.Popen(cmd, stdout=subprocess.PIPE)
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stdout, stderr = pipe.communicate()
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if pipe.returncode != 0:
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print col.Color(col.RED, 'Unable to skip patch! Aborting...')
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print stdout
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break
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# Return to our previous position
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cmd = ['git', 'checkout', old_head]
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pipe = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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stdout, stderr = pipe.communicate()
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if pipe.returncode:
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print col.Color(col.RED, 'Could not move back to head commit')
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print stdout, stderr
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return error_count == 0
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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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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 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):
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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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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 = series.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)
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if not to:
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print ("No recipient, please add something like this to a commit\n"
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"Series-to: Fred Bloggs <f.blogs@napier.co.nz>")
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return
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cc = BuildEmailList(series.get('cc'), '--cc', alias, raise_on_error)
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if self_only:
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to = BuildEmailList([os.getenv('USER')], '--to', alias, raise_on_error)
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cc = []
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cmd = ['git', 'send-email', '--annotate']
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if in_reply_to:
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cmd.append('--in-reply-to="%s"' % in_reply_to)
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cmd += to
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cmd += cc
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cmd += ['--cc-cmd', '"%s --cc-cmd %s"' % (sys.argv[0], cc_fname)]
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if cover_fname:
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cmd.append(cover_fname)
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cmd += args
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str = ' '.join(cmd)
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if not dry_run:
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os.system(str)
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return str
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def LookupEmail(lookup_name, alias=None, raise_on_error=True, level=0):
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"""If an email address is an alias, look it up and return the full name
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TODO: Why not just use git's own alias feature?
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Args:
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lookup_name: Alias or email address to look up
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alias: Dictionary containing aliases (None to use settings default)
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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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tuple:
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list containing a list of email addresses
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Raises:
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OSError if a recursive alias reference was found
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ValueError if an alias was not found
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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', 'f.bloggs@napier.co.nz']
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>>> alias['all'] = ['fred ', 'john', ' mary ']
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>>> alias['loop'] = ['other', 'john', ' mary ']
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>>> alias['other'] = ['loop', 'john', ' mary ']
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>>> LookupEmail('mary', alias)
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['m.poppins@cloud.net']
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>>> LookupEmail('arthur.wellesley@howe.ro.uk', alias)
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['arthur.wellesley@howe.ro.uk']
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>>> LookupEmail('boys', alias)
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['f.bloggs@napier.co.nz', 'j.bloggs@napier.co.nz']
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>>> LookupEmail('all', alias)
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['f.bloggs@napier.co.nz', 'j.bloggs@napier.co.nz', 'm.poppins@cloud.net']
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>>> LookupEmail('odd', alias)
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Traceback (most recent call last):
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...
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ValueError: Alias 'odd' not found
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>>> LookupEmail('loop', alias)
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Traceback (most recent call last):
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...
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OSError: Recursive email alias at 'other'
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>>> LookupEmail('odd', alias, raise_on_error=False)
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\033[1;31mAlias 'odd' not found\033[0m
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[]
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>>> # In this case the loop part will effectively be ignored.
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>>> LookupEmail('loop', alias, raise_on_error=False)
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\033[1;31mRecursive email alias at 'other'\033[0m
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\033[1;31mRecursive email alias at 'john'\033[0m
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\033[1;31mRecursive email alias at 'mary'\033[0m
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['j.bloggs@napier.co.nz', 'm.poppins@cloud.net']
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"""
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if not alias:
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alias = settings.alias
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lookup_name = lookup_name.strip()
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if '@' in lookup_name: # Perhaps a real email address
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return [lookup_name]
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lookup_name = lookup_name.lower()
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col = terminal.Color()
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out_list = []
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if level > 10:
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msg = "Recursive email alias at '%s'" % lookup_name
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if raise_on_error:
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raise OSError, msg
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else:
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print col.Color(col.RED, msg)
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return out_list
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if lookup_name:
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if not lookup_name in alias:
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msg = "Alias '%s' not found" % lookup_name
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if raise_on_error:
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raise ValueError, msg
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else:
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print col.Color(col.RED, msg)
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return out_list
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for item in alias[lookup_name]:
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todo = LookupEmail(item, alias, raise_on_error, level + 1)
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for new_item in todo:
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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 Setup():
|
|
"""Set up git utils, by reading the alias files."""
|
|
# Check for a git alias file also
|
|
alias_fname = GetAliasFile()
|
|
if alias_fname:
|
|
settings.ReadGitAliases(alias_fname)
|
|
|
|
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()
|