Filename: //lib//python3/dist-packages/pbr//git.py

# Copyright 2011 OpenStack Foundation # Copyright 2012-2013 Hewlett-Packard Development Company, L.P. # All Rights Reserved. # # Licensed under the Apache License, Version 2.0 (the "License"); you may # not use this file except in compliance with the License. You may obtain # a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the # License for the specific language governing permissions and limitations # under the License. from __future__ import unicode_literals import distutils.errors from distutils import log import errno import io import os import re import subprocess import time import pkg_resources from pbr import options from pbr import version def _run_shell_command(cmd, throw_on_error=False, buffer=True, env=None): if buffer: out_location = subprocess.PIPE err_location = subprocess.PIPE else: out_location = None err_location = None newenv = os.environ.copy() if env: newenv.update(env) output = subprocess.Popen(cmd, stdout=out_location, stderr=err_location, env=newenv) out = output.communicate() if output.returncode and throw_on_error: raise distutils.errors.DistutilsError( "%s returned %d" % (cmd, output.returncode)) if len(out) == 0 or not out[0] or not out[0].strip(): return '' # Since we don't control the history, and forcing users to rebase arbitrary # history to fix utf8 issues is harsh, decode with replace. return out[0].strip().decode('utf-8', 'replace') def _run_git_command(cmd, git_dir, **kwargs): if not isinstance(cmd, (list, tuple)): cmd = [cmd] return _run_shell_command( ['git', '--git-dir=%s' % git_dir] + cmd, **kwargs) def _get_git_directory(): try: return _run_shell_command(['git', 'rev-parse', '--git-dir']) except OSError as e: if e.errno == errno.ENOENT: # git not installed. return '' raise def _git_is_installed(): try: # We cannot use 'which git' as it may not be available # in some distributions, So just try 'git --version' # to see if we run into trouble _run_shell_command(['git', '--version']) except OSError: return False return True def _get_highest_tag(tags): """Find the highest tag from a list. Pass in a list of tag strings and this will return the highest (latest) as sorted by the pkg_resources version parser. """ return max(tags, key=pkg_resources.parse_version) def _find_git_files(dirname='', git_dir=None): """Behave like a file finder entrypoint plugin. We don't actually use the entrypoints system for this because it runs at absurd times. We only want to do this when we are building an sdist. """ file_list = [] if git_dir is None: git_dir = _run_git_functions() if git_dir: log.info("[pbr] In git context, generating filelist from git") file_list = _run_git_command(['ls-files', '-z'], git_dir) # Users can fix utf8 issues locally with a single commit, so we are # strict here. file_list = file_list.split(b'\x00'.decode('utf-8')) return [f for f in file_list if f] def _get_raw_tag_info(git_dir): describe = _run_git_command(['describe', '--always'], git_dir) if "-" in describe: return describe.rsplit("-", 2)[-2] if "." in describe: return 0 return None def get_is_release(git_dir): return _get_raw_tag_info(git_dir) == 0 def _run_git_functions(): git_dir = None if _git_is_installed(): git_dir = _get_git_directory() return git_dir or None def get_git_short_sha(git_dir=None): """Return the short sha for this repo, if it exists.""" if not git_dir: git_dir = _run_git_functions() if git_dir: return _run_git_command( ['log', '-n1', '--pretty=format:%h'], git_dir) return None def _clean_changelog_message(msg): """Cleans any instances of invalid sphinx wording. This escapes/removes any instances of invalid characters that can be interpreted by sphinx as a warning or error when translating the Changelog into an HTML file for documentation building within projects. * Escapes '_' which is interpreted as a link * Escapes '*' which is interpreted as a new line * Escapes '`' which is interpreted as a literal """ msg = msg.replace('*', r'\*') msg = msg.replace('_', r'\_') msg = msg.replace('`', r'\`') return msg def _iter_changelog(changelog): """Convert a oneline log iterator to formatted strings. :param changelog: An iterator of one line log entries like that given by _iter_log_oneline. :return: An iterator over (release, formatted changelog) tuples. """ first_line = True current_release = None yield current_release, "CHANGES\n=======\n\n" for hash, tags, msg in changelog: if tags: current_release = _get_highest_tag(tags) underline = len(current_release) * '-' if not first_line: yield current_release, '\n' yield current_release, ( "%(tag)s\n%(underline)s\n\n" % dict(tag=current_release, underline=underline)) if not msg.startswith("Merge "): if msg.endswith("."): msg = msg[:-1] msg = _clean_changelog_message(msg) yield current_release, "* %(msg)s\n" % dict(msg=msg) first_line = False def _iter_log_oneline(git_dir=None): """Iterate over --oneline log entries if possible. This parses the output into a structured form but does not apply presentation logic to the output - making it suitable for different uses. :return: An iterator of (hash, tags_set, 1st_line) tuples, or None if changelog generation is disabled / not available. """ if git_dir is None: git_dir = _get_git_directory() if not git_dir: return [] return _iter_log_inner(git_dir) def _is_valid_version(candidate): try: version.SemanticVersion.from_pip_string(candidate) return True except ValueError: return False def _iter_log_inner(git_dir): """Iterate over --oneline log entries. This parses the output intro a structured form but does not apply presentation logic to the output - making it suitable for different uses. .. caution:: this function risk to return a tag that doesn't exist really inside the git objects list due to replacement made to tag name to also list pre-release suffix. Compliant with the SemVer specification (e.g 1.2.3-rc1) :return: An iterator of (hash, tags_set, 1st_line) tuples. """ log.info('[pbr] Generating ChangeLog') log_cmd = ['log', '--decorate=full', '--format=%h%x00%s%x00%d'] changelog = _run_git_command(log_cmd, git_dir) for line in changelog.split('\n'): line_parts = line.split('\x00') if len(line_parts) != 3: continue sha, msg, refname = line_parts tags = set() # refname can be: # <empty> # HEAD, tag: refs/tags/1.4.0, refs/remotes/origin/master, \ # refs/heads/master # refs/tags/1.3.4 if "refs/tags/" in refname: refname = refname.strip()[1:-1] # remove wrapping ()'s # If we start with "tag: refs/tags/1.2b1, tag: refs/tags/1.2" # The first split gives us "['', '1.2b1, tag:', '1.2']" # Which is why we do the second split below on the comma for tag_string in refname.split("refs/tags/")[1:]: # git tag does not allow : or " " in tag names, so we split # on ", " which is the separator between elements candidate = tag_string.split(", ")[0].replace("-", ".") if _is_valid_version(candidate): tags.add(candidate) yield sha, tags, msg def write_git_changelog(git_dir=None, dest_dir=os.path.curdir, option_dict=None, changelog=None): """Write a changelog based on the git changelog.""" start = time.time() if not option_dict: option_dict = {} should_skip = options.get_boolean_option(option_dict, 'skip_changelog', 'SKIP_WRITE_GIT_CHANGELOG') if should_skip: return if not changelog: changelog = _iter_log_oneline(git_dir=git_dir) if changelog: changelog = _iter_changelog(changelog) if not changelog: return new_changelog = os.path.join(dest_dir, 'ChangeLog') if os.path.exists(new_changelog) and not os.access(new_changelog, os.W_OK): # If there's already a ChangeLog and it's not writable, just use it log.info('[pbr] ChangeLog not written (file already' ' exists and it is not writeable)') return log.info('[pbr] Writing ChangeLog') with io.open(new_changelog, "w", encoding="utf-8") as changelog_file: for release, content in changelog: changelog_file.write(content) stop = time.time() log.info('[pbr] ChangeLog complete (%0.1fs)' % (stop - start)) def generate_authors(git_dir=None, dest_dir='.', option_dict=dict()): """Create AUTHORS file using git commits.""" should_skip = options.get_boolean_option(option_dict, 'skip_authors', 'SKIP_GENERATE_AUTHORS') if should_skip: return start = time.time() old_authors = os.path.join(dest_dir, 'AUTHORS.in') new_authors = os.path.join(dest_dir, 'AUTHORS') if os.path.exists(new_authors) and not os.access(new_authors, os.W_OK): # If there's already an AUTHORS file and it's not writable, just use it return log.info('[pbr] Generating AUTHORS') ignore_emails = '((jenkins|zuul)@review|infra@lists|jenkins@openstack)' if git_dir is None: git_dir = _get_git_directory() if git_dir: authors = [] # don't include jenkins email address in AUTHORS file git_log_cmd = ['log', '--format=%aN <%aE>'] authors += _run_git_command(git_log_cmd, git_dir).split('\n') authors = [a for a in authors if not re.search(ignore_emails, a)] # get all co-authors from commit messages co_authors_out = _run_git_command('log', git_dir) co_authors = re.findall('Co-authored-by:.+', co_authors_out, re.MULTILINE) co_authors = [signed.split(":", 1)[1].strip() for signed in co_authors if signed] authors += co_authors authors = sorted(set(authors)) with open(new_authors, 'wb') as new_authors_fh: if os.path.exists(old_authors): with open(old_authors, "rb") as old_authors_fh: new_authors_fh.write(old_authors_fh.read()) new_authors_fh.write(('\n'.join(authors) + '\n') .encode('utf-8')) stop = time.time() log.info('[pbr] AUTHORS complete (%0.1fs)' % (stop - start))

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