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📁 ..	-	2026-03-21 15:53
📄 __init__.py # Expose a limited set of classes and functions so callers outside of # the vcs package don't need to import deeper than `pip._internal.vcs`. # (The test directory may still need to import from a vcs sub-package.) # Import all vcs modules to register each VCS in the VcsSupport object. import pip._internal.vcs.bazaar import pip._internal.vcs.git import pip._internal.vcs.mercurial import pip._internal.vcs.subversion # noqa: F401 from pip._internal.vcs.versioncontrol import ( # noqa: F401 RemoteNotFoundError, RemoteNotValidError, is_url, make_vcs_requirement_url, vcs, )	596 B	2026-01-07 23:39
📁 __pycache__	-	2026-03-21 15:53
📄 bazaar.py import logging from typing import List, Optional, Tuple from pip._internal.utils.misc import HiddenText, display_path from pip._internal.utils.subprocess import make_command from pip._internal.utils.urls import path_to_url from pip._internal.vcs.versioncontrol import ( AuthInfo, RemoteNotFoundError, RevOptions, VersionControl, vcs, ) logger = logging.getLogger(__name__) class Bazaar(VersionControl): name = "bzr" dirname = ".bzr" repo_name = "branch" schemes = ( "bzr+http", "bzr+https", "bzr+ssh", "bzr+sftp", "bzr+ftp", "bzr+lp", "bzr+file", ) @staticmethod def get_base_rev_args(rev: str) -> List[str]: return ["-r", rev] def fetch_new(self, dest: str, url: HiddenText, rev_options: RevOptions) -> None: rev_display = rev_options.to_display() logger.info( "Checking out %s%s to %s", url, rev_display, display_path(dest), ) cmd_args = make_command("branch", "-q", rev_options.to_args(), url, dest) self.run_command(cmd_args) def switch(self, dest: str, url: HiddenText, rev_options: RevOptions) -> None: self.run_command(make_command("switch", url), cwd=dest) def update(self, dest: str, url: HiddenText, rev_options: RevOptions) -> None: cmd_args = make_command("pull", "-q", rev_options.to_args()) self.run_command(cmd_args, cwd=dest) @classmethod def get_url_rev_and_auth(cls, url: str) -> Tuple[str, Optional[str], AuthInfo]: # hotfix the URL scheme after removing bzr+ from bzr+ssh:// readd it url, rev, user_pass = super().get_url_rev_and_auth(url) if url.startswith("ssh://"): url = "bzr+" + url return url, rev, user_pass @classmethod def get_remote_url(cls, location: str) -> str: urls = cls.run_command( ["info"], show_stdout=False, stdout_only=True, cwd=location ) for line in urls.splitlines(): line = line.strip() for x in ("checkout of branch: ", "parent branch: "): if line.startswith(x): repo = line.split(x)[1] if cls._is_local_repository(repo): return path_to_url(repo) return repo raise RemoteNotFoundError @classmethod def get_revision(cls, location: str) -> str: revision = cls.run_command( ["revno"], show_stdout=False, stdout_only=True, cwd=location, ) return revision.splitlines()[-1] @classmethod def is_commit_id_equal(cls, dest: str, name: Optional[str]) -> bool: """Always assume the versions don't match""" return False vcs.register(Bazaar)	2.79 KB	2026-01-07 23:39
📄 git.py import logging import os.path import pathlib import re import urllib.parse import urllib.request from typing import List, Optional, Tuple from pip._internal.exceptions import BadCommand, InstallationError from pip._internal.utils.misc import HiddenText, display_path, hide_url from pip._internal.utils.subprocess import make_command from pip._internal.vcs.versioncontrol import ( AuthInfo, RemoteNotFoundError, RemoteNotValidError, RevOptions, VersionControl, find_path_to_project_root_from_repo_root, vcs, ) urlsplit = urllib.parse.urlsplit urlunsplit = urllib.parse.urlunsplit logger = logging.getLogger(__name__) GIT_VERSION_REGEX = re.compile( r"^git version " # Prefix. r"(\d+)" # Major. r"\.(\d+)" # Dot, minor. r"(?:\.(\d+))?" # Optional dot, patch. r".$" # Suffix, including any pre- and post-release segments we don't care about. ) HASH_REGEX = re.compile("^[a-fA-F0-9]{40}$") # SCP (Secure copy protocol) shorthand. e.g. 'git@example.com:foo/bar.git' SCP_REGEX = re.compile( r"""^ # Optional user, e.g. 'git@' (\w+@)? # Server, e.g. 'github.com'. ([^/:]+): # The server-side path. e.g. 'user/project.git'. Must start with an # alphanumeric character so as not to be confusable with a Windows paths # like 'C:/foo/bar' or 'C:\foo\bar'. (\w[^:]) $""", re.VERBOSE, ) def looks_like_hash(sha: str) -> bool: return bool(HASH_REGEX.match(sha)) class Git(VersionControl): name = "git" dirname = ".git" repo_name = "clone" schemes = ( "git+http", "git+https", "git+ssh", "git+git", "git+file", ) # Prevent the user's environment variables from interfering with pip: # https://github.com/pypa/pip/issues/1130 unset_environ = ("GIT_DIR", "GIT_WORK_TREE") default_arg_rev = "HEAD" @staticmethod def get_base_rev_args(rev: str) -> List[str]: return [rev] def is_immutable_rev_checkout(self, url: str, dest: str) -> bool: _, rev_options = self.get_url_rev_options(hide_url(url)) if not rev_options.rev: return False if not self.is_commit_id_equal(dest, rev_options.rev): # the current commit is different from rev, # which means rev was something else than a commit hash return False # return False in the rare case rev is both a commit hash # and a tag or a branch; we don't want to cache in that case # because that branch/tag could point to something else in the future is_tag_or_branch = bool(self.get_revision_sha(dest, rev_options.rev)[0]) return not is_tag_or_branch def get_git_version(self) -> Tuple[int, ...]: version = self.run_command(["version"], show_stdout=False, stdout_only=True) match = GIT_VERSION_REGEX.match(version) if not match: logger.warning("Can't parse git version: %s", version) return () return tuple(int(c) for c in match.groups()) @classmethod def get_current_branch(cls, location: str) -> Optional[str]: """ Return the current branch, or None if HEAD isn't at a branch (e.g. detached HEAD). """ # git-symbolic-ref exits with empty stdout if "HEAD" is a detached # HEAD rather than a symbolic ref. In addition, the -q causes the # command to exit with status code 1 instead of 128 in this case # and to suppress the message to stderr. args = ["symbolic-ref", "-q", "HEAD"] output = cls.run_command( args, extra_ok_returncodes=(1,), show_stdout=False, stdout_only=True, cwd=location, ) ref = output.strip() if ref.startswith("refs/heads/"): return ref[len("refs/heads/") :] return None @classmethod def get_revision_sha(cls, dest: str, rev: str) -> Tuple[Optional[str], bool]: """ Return (sha_or_none, is_branch), where sha_or_none is a commit hash if the revision names a remote branch or tag, otherwise None. Args: dest: the repository directory. rev: the revision name. """ # Pass rev to pre-filter the list. output = cls.run_command( ["show-ref", rev], cwd=dest, show_stdout=False, stdout_only=True, on_returncode="ignore", ) refs = {} # NOTE: We do not use splitlines here since that would split on other # unicode separators, which can be maliciously used to install a # different revision. for line in output.strip().split("\n"): line = line.rstrip("\r") if not line: continue try: ref_sha, ref_name = line.split(" ", maxsplit=2) except ValueError: # Include the offending line to simplify troubleshooting if # this error ever occurs. raise ValueError(f"unexpected show-ref line: {line!r}") refs[ref_name] = ref_sha branch_ref = f"refs/remotes/origin/{rev}" tag_ref = f"refs/tags/{rev}" sha = refs.get(branch_ref) if sha is not None: return (sha, True) sha = refs.get(tag_ref) return (sha, False) @classmethod def _should_fetch(cls, dest: str, rev: str) -> bool: """ Return true if rev is a ref or is a commit that we don't have locally. Branches and tags are not considered in this method because they are assumed to be always available locally (which is a normal outcome of ``git clone`` and ``git fetch --tags``). """ if rev.startswith("refs/"): # Always fetch remote refs. return True if not looks_like_hash(rev): # Git fetch would fail with abbreviated commits. return False if cls.has_commit(dest, rev): # Don't fetch if we have the commit locally. return False return True @classmethod def resolve_revision( cls, dest: str, url: HiddenText, rev_options: RevOptions ) -> RevOptions: """ Resolve a revision to a new RevOptions object with the SHA1 of the branch, tag, or ref if found. Args: rev_options: a RevOptions object. """ rev = rev_options.arg_rev # The arg_rev property's implementation for Git ensures that the # rev return value is always non-None. assert rev is not None sha, is_branch = cls.get_revision_sha(dest, rev) if sha is not None: rev_options = rev_options.make_new(sha) rev_options.branch_name = rev if is_branch else None return rev_options # Do not show a warning for the common case of something that has # the form of a Git commit hash. if not looks_like_hash(rev): logger.warning( "Did not find branch or tag '%s', assuming revision or ref.", rev, ) if not cls._should_fetch(dest, rev): return rev_options # fetch the requested revision cls.run_command( make_command("fetch", "-q", url, rev_options.to_args()), cwd=dest, ) # Change the revision to the SHA of the ref we fetched sha = cls.get_revision(dest, rev="FETCH_HEAD") rev_options = rev_options.make_new(sha) return rev_options @classmethod def is_commit_id_equal(cls, dest: str, name: Optional[str]) -> bool: """ Return whether the current commit hash equals the given name. Args: dest: the repository directory. name: a string name. """ if not name: # Then avoid an unnecessary subprocess call. return False return cls.get_revision(dest) == name def fetch_new(self, dest: str, url: HiddenText, rev_options: RevOptions) -> None: rev_display = rev_options.to_display() logger.info("Cloning %s%s to %s", url, rev_display, display_path(dest)) if self.get_git_version() >= (2, 17): # Git added support for partial clone in 2.17 # https://git-scm.com/docs/partial-clone # Speeds up cloning by functioning without a complete copy of repository self.run_command( make_command( "clone", "--filter=blob:none", "-q", url, dest, ) ) else: self.run_command(make_command("clone", "-q", url, dest)) if rev_options.rev: # Then a specific revision was requested. rev_options = self.resolve_revision(dest, url, rev_options) branch_name = getattr(rev_options, "branch_name", None) logger.debug("Rev options %s, branch_name %s", rev_options, branch_name) if branch_name is None: # Only do a checkout if the current commit id doesn't match # the requested revision. if not self.is_commit_id_equal(dest, rev_options.rev): cmd_args = make_command( "checkout", "-q", rev_options.to_args(), ) self.run_command(cmd_args, cwd=dest) elif self.get_current_branch(dest) != branch_name: # Then a specific branch was requested, and that branch # is not yet checked out. track_branch = f"origin/{branch_name}" cmd_args = [ "checkout", "-b", branch_name, "--track", track_branch, ] self.run_command(cmd_args, cwd=dest) else: sha = self.get_revision(dest) rev_options = rev_options.make_new(sha) logger.info("Resolved %s to commit %s", url, rev_options.rev) #: repo may contain submodules self.update_submodules(dest) def switch(self, dest: str, url: HiddenText, rev_options: RevOptions) -> None: self.run_command( make_command("config", "remote.origin.url", url), cwd=dest, ) cmd_args = make_command("checkout", "-q", rev_options.to_args()) self.run_command(cmd_args, cwd=dest) self.update_submodules(dest) def update(self, dest: str, url: HiddenText, rev_options: RevOptions) -> None: # First fetch changes from the default remote if self.get_git_version() >= (1, 9): # fetch tags in addition to everything else self.run_command(["fetch", "-q", "--tags"], cwd=dest) else: self.run_command(["fetch", "-q"], cwd=dest) # Then reset to wanted revision (maybe even origin/master) rev_options = self.resolve_revision(dest, url, rev_options) cmd_args = make_command("reset", "--hard", "-q", rev_options.to_args()) self.run_command(cmd_args, cwd=dest) #: update submodules self.update_submodules(dest) @classmethod def get_remote_url(cls, location: str) -> str: """ Return URL of the first remote encountered. Raises RemoteNotFoundError if the repository does not have a remote url configured. """ # We need to pass 1 for extra_ok_returncodes since the command # exits with return code 1 if there are no matching lines. stdout = cls.run_command( ["config", "--get-regexp", r"remote\..\.url"], extra_ok_returncodes=(1,), show_stdout=False, stdout_only=True, cwd=location, ) remotes = stdout.splitlines() try: found_remote = remotes[0] except IndexError: raise RemoteNotFoundError for remote in remotes: if remote.startswith("remote.origin.url "): found_remote = remote break url = found_remote.split(" ")[1] return cls._git_remote_to_pip_url(url.strip()) @staticmethod def _git_remote_to_pip_url(url: str) -> str: """ Convert a remote url from what git uses to what pip accepts. There are 3 legal forms url* may take: 1. A fully qualified url: ssh://git@example.com/foo/bar.git 2. A local project.git folder: /path/to/bare/repository.git 3. SCP shorthand for form 1: git@example.com:foo/bar.git Form 1 is output as-is. Form 2 must be converted to URI and form 3 must be converted to form 1. See the corresponding test test_git_remote_url_to_pip() for examples of sample inputs/outputs. """ if re.match(r"\w+://", url): # This is already valid. Pass it though as-is. return url if os.path.exists(url): # A local bare remote (git clone --mirror). # Needs a file:// prefix. return pathlib.PurePath(url).as_uri() scp_match = SCP_REGEX.match(url) if scp_match: # Add an ssh:// prefix and replace the ':' with a '/'. return scp_match.expand(r"ssh://\1\2/\3") # Otherwise, bail out. raise RemoteNotValidError(url) @classmethod def has_commit(cls, location: str, rev: str) -> bool: """ Check if rev is a commit that is available in the local repository. """ try: cls.run_command( ["rev-parse", "-q", "--verify", "sha^" + rev], cwd=location, log_failed_cmd=False, ) except InstallationError: return False else: return True @classmethod def get_revision(cls, location: str, rev: Optional[str] = None) -> str: if rev is None: rev = "HEAD" current_rev = cls.run_command( ["rev-parse", rev], show_stdout=False, stdout_only=True, cwd=location, ) return current_rev.strip() @classmethod def get_subdirectory(cls, location: str) -> Optional[str]: """ Return the path to Python project root, relative to the repo root. Return None if the project root is in the repo root. """ # find the repo root git_dir = cls.run_command( ["rev-parse", "--git-dir"], show_stdout=False, stdout_only=True, cwd=location, ).strip() if not os.path.isabs(git_dir): git_dir = os.path.join(location, git_dir) repo_root = os.path.abspath(os.path.join(git_dir, "..")) return find_path_to_project_root_from_repo_root(location, repo_root) @classmethod def get_url_rev_and_auth(cls, url: str) -> Tuple[str, Optional[str], AuthInfo]: """ Prefixes stub URLs like 'user@hostname:user/repo.git' with 'ssh://'. That's required because although they use SSH they sometimes don't work with a ssh:// scheme (e.g. GitHub). But we need a scheme for parsing. Hence we remove it again afterwards and return it as a stub. """ # Works around an apparent Git bug # (see https://article.gmane.org/gmane.comp.version-control.git/146500) scheme, netloc, path, query, fragment = urlsplit(url) if scheme.endswith("file"): initial_slashes = path[: -len(path.lstrip("/"))] newpath = initial_slashes + urllib.request.url2pathname(path).replace( "\\", "/" ).lstrip("/") after_plus = scheme.find("+") + 1 url = scheme[:after_plus] + urlunsplit( (scheme[after_plus:], netloc, newpath, query, fragment), ) if "://" not in url: assert "file:" not in url url = url.replace("git+", "git+ssh://") url, rev, user_pass = super().get_url_rev_and_auth(url) url = url.replace("ssh://", "") else: url, rev, user_pass = super().get_url_rev_and_auth(url) return url, rev, user_pass @classmethod def update_submodules(cls, location: str) -> None: if not os.path.exists(os.path.join(location, ".gitmodules")): return cls.run_command( ["submodule", "update", "--init", "--recursive", "-q"], cwd=location, ) @classmethod def get_repository_root(cls, location: str) -> Optional[str]: loc = super().get_repository_root(location) if loc: return loc try: r = cls.run_command( ["rev-parse", "--show-toplevel"], cwd=location, show_stdout=False, stdout_only=True, on_returncode="raise", log_failed_cmd=False, ) except BadCommand: logger.debug( "could not determine if %s is under git control " "because git is not available", location, ) return None except InstallationError: return None return os.path.normpath(r.rstrip("\r\n")) @staticmethod def should_add_vcs_url_prefix(repo_url: str) -> bool: """In either https or ssh form, requirements must be prefixed with git+.""" return True vcs.register(Git)	17.39 KB	2026-01-07 23:39
📄 mercurial.py import configparser import logging import os from typing import List, Optional from pip._internal.exceptions import BadCommand, InstallationError from pip._internal.utils.misc import HiddenText, display_path from pip._internal.utils.subprocess import make_command from pip._internal.utils.urls import path_to_url from pip._internal.vcs.versioncontrol import ( RevOptions, VersionControl, find_path_to_project_root_from_repo_root, vcs, ) logger = logging.getLogger(__name__) class Mercurial(VersionControl): name = "hg" dirname = ".hg" repo_name = "clone" schemes = ( "hg+file", "hg+http", "hg+https", "hg+ssh", "hg+static-http", ) @staticmethod def get_base_rev_args(rev: str) -> List[str]: return [rev] def fetch_new(self, dest: str, url: HiddenText, rev_options: RevOptions) -> None: rev_display = rev_options.to_display() logger.info( "Cloning hg %s%s to %s", url, rev_display, display_path(dest), ) self.run_command(make_command("clone", "--noupdate", "-q", url, dest)) self.run_command( make_command("update", "-q", rev_options.to_args()), cwd=dest, ) def switch(self, dest: str, url: HiddenText, rev_options: RevOptions) -> None: repo_config = os.path.join(dest, self.dirname, "hgrc") config = configparser.RawConfigParser() try: config.read(repo_config) config.set("paths", "default", url.secret) with open(repo_config, "w") as config_file: config.write(config_file) except (OSError, configparser.NoSectionError) as exc: logger.warning("Could not switch Mercurial repository to %s: %s", url, exc) else: cmd_args = make_command("update", "-q", rev_options.to_args()) self.run_command(cmd_args, cwd=dest) def update(self, dest: str, url: HiddenText, rev_options: RevOptions) -> None: self.run_command(["pull", "-q"], cwd=dest) cmd_args = make_command("update", "-q", rev_options.to_args()) self.run_command(cmd_args, cwd=dest) @classmethod def get_remote_url(cls, location: str) -> str: url = cls.run_command( ["showconfig", "paths.default"], show_stdout=False, stdout_only=True, cwd=location, ).strip() if cls._is_local_repository(url): url = path_to_url(url) return url.strip() @classmethod def get_revision(cls, location: str) -> str: """ Return the repository-local changeset revision number, as an integer. """ current_revision = cls.run_command( ["parents", "--template={rev}"], show_stdout=False, stdout_only=True, cwd=location, ).strip() return current_revision @classmethod def get_requirement_revision(cls, location: str) -> str: """ Return the changeset identification hash, as a 40-character hexadecimal string """ current_rev_hash = cls.run_command( ["parents", "--template={node}"], show_stdout=False, stdout_only=True, cwd=location, ).strip() return current_rev_hash @classmethod def is_commit_id_equal(cls, dest: str, name: Optional[str]) -> bool: """Always assume the versions don't match""" return False @classmethod def get_subdirectory(cls, location: str) -> Optional[str]: """ Return the path to Python project root, relative to the repo root. Return None if the project root is in the repo root. """ # find the repo root repo_root = cls.run_command( ["root"], show_stdout=False, stdout_only=True, cwd=location ).strip() if not os.path.isabs(repo_root): repo_root = os.path.abspath(os.path.join(location, repo_root)) return find_path_to_project_root_from_repo_root(location, repo_root) @classmethod def get_repository_root(cls, location: str) -> Optional[str]: loc = super().get_repository_root(location) if loc: return loc try: r = cls.run_command( ["root"], cwd=location, show_stdout=False, stdout_only=True, on_returncode="raise", log_failed_cmd=False, ) except BadCommand: logger.debug( "could not determine if %s is under hg control " "because hg is not available", location, ) return None except InstallationError: return None return os.path.normpath(r.rstrip("\r\n")) vcs.register(Mercurial)	4.83 KB	2026-01-07 23:39
📄 subversion.py import logging import os import re from typing import List, Optional, Tuple from pip._internal.utils.misc import ( HiddenText, display_path, is_console_interactive, is_installable_dir, split_auth_from_netloc, ) from pip._internal.utils.subprocess import CommandArgs, make_command from pip._internal.vcs.versioncontrol import ( AuthInfo, RemoteNotFoundError, RevOptions, VersionControl, vcs, ) logger = logging.getLogger(__name__) _svn_xml_url_re = re.compile('url="([^"]+)"') _svn_rev_re = re.compile(r'committed-rev="(\d+)"') _svn_info_xml_rev_re = re.compile(r'\srevision="(\d+)"') _svn_info_xml_url_re = re.compile(r"<url>(.)</url>") class Subversion(VersionControl): name = "svn" dirname = ".svn" repo_name = "checkout" schemes = ("svn+ssh", "svn+http", "svn+https", "svn+svn", "svn+file") @classmethod def should_add_vcs_url_prefix(cls, remote_url: str) -> bool: return True @staticmethod def get_base_rev_args(rev: str) -> List[str]: return ["-r", rev] @classmethod def get_revision(cls, location: str) -> str: """ Return the maximum revision for all files under a given location """ # Note: taken from setuptools.command.egg_info revision = 0 for base, dirs, _ in os.walk(location): if cls.dirname not in dirs: dirs[:] = [] continue # no sense walking uncontrolled subdirs dirs.remove(cls.dirname) entries_fn = os.path.join(base, cls.dirname, "entries") if not os.path.exists(entries_fn): # FIXME: should we warn? continue dirurl, localrev = cls._get_svn_url_rev(base) if base == location: assert dirurl is not None base = dirurl + "/" # save the root url elif not dirurl or not dirurl.startswith(base): dirs[:] = [] continue # not part of the same svn tree, skip it revision = max(revision, localrev) return str(revision) @classmethod def get_netloc_and_auth( cls, netloc: str, scheme: str ) -> Tuple[str, Tuple[Optional[str], Optional[str]]]: """ This override allows the auth information to be passed to svn via the --username and --password options instead of via the URL. """ if scheme == "ssh": # The --username and --password options can't be used for # svn+ssh URLs, so keep the auth information in the URL. return super().get_netloc_and_auth(netloc, scheme) return split_auth_from_netloc(netloc) @classmethod def get_url_rev_and_auth(cls, url: str) -> Tuple[str, Optional[str], AuthInfo]: # hotfix the URL scheme after removing svn+ from svn+ssh:// readd it url, rev, user_pass = super().get_url_rev_and_auth(url) if url.startswith("ssh://"): url = "svn+" + url return url, rev, user_pass @staticmethod def make_rev_args( username: Optional[str], password: Optional[HiddenText] ) -> CommandArgs: extra_args: CommandArgs = [] if username: extra_args += ["--username", username] if password: extra_args += ["--password", password] return extra_args @classmethod def get_remote_url(cls, location: str) -> str: # In cases where the source is in a subdirectory, we have to look up in # the location until we find a valid project root. orig_location = location while not is_installable_dir(location): last_location = location location = os.path.dirname(location) if location == last_location: # We've traversed up to the root of the filesystem without # finding a Python project. logger.warning( "Could not find Python project for directory %s (tried all " "parent directories)", orig_location, ) raise RemoteNotFoundError url, _rev = cls._get_svn_url_rev(location) if url is None: raise RemoteNotFoundError return url @classmethod def _get_svn_url_rev(cls, location: str) -> Tuple[Optional[str], int]: from pip._internal.exceptions import InstallationError entries_path = os.path.join(location, cls.dirname, "entries") if os.path.exists(entries_path): with open(entries_path) as f: data = f.read() else: # subversion >= 1.7 does not have the 'entries' file data = "" url = None if data.startswith("8") or data.startswith("9") or data.startswith("10"): entries = list(map(str.splitlines, data.split("\n\x0c\n"))) del entries[0][0] # get rid of the '8' url = entries[0][3] revs = [int(d[9]) for d in entries if len(d) > 9 and d[9]] + [0] elif data.startswith("<?xml"): match = _svn_xml_url_re.search(data) if not match: raise ValueError(f"Badly formatted data: {data!r}") url = match.group(1) # get repository URL revs = [int(m.group(1)) for m in _svn_rev_re.finditer(data)] + [0] else: try: # subversion >= 1.7 # Note that using get_remote_call_options is not necessary here # because `svn info` is being run against a local directory. # We don't need to worry about making sure interactive mode # is being used to prompt for passwords, because passwords # are only potentially needed for remote server requests. xml = cls.run_command( ["info", "--xml", location], show_stdout=False, stdout_only=True, ) match = _svn_info_xml_url_re.search(xml) assert match is not None url = match.group(1) revs = [int(m.group(1)) for m in _svn_info_xml_rev_re.finditer(xml)] except InstallationError: url, revs = None, [] if revs: rev = max(revs) else: rev = 0 return url, rev @classmethod def is_commit_id_equal(cls, dest: str, name: Optional[str]) -> bool: """Always assume the versions don't match""" return False def __init__(self, use_interactive: bool = None) -> None: if use_interactive is None: use_interactive = is_console_interactive() self.use_interactive = use_interactive # This member is used to cache the fetched version of the current # ``svn`` client. # Special value definitions: # None: Not evaluated yet. # Empty tuple: Could not parse version. self._vcs_version: Optional[Tuple[int, ...]] = None super().__init__() def call_vcs_version(self) -> Tuple[int, ...]: """Query the version of the currently installed Subversion client. :return: A tuple containing the parts of the version information or ``()`` if the version returned from ``svn`` could not be parsed. :raises: BadCommand: If ``svn`` is not installed. """ # Example versions: # svn, version 1.10.3 (r1842928) # compiled Feb 25 2019, 14:20:39 on x86_64-apple-darwin17.0.0 # svn, version 1.7.14 (r1542130) # compiled Mar 28 2018, 08:49:13 on x86_64-pc-linux-gnu # svn, version 1.12.0-SlikSvn (SlikSvn/1.12.0) # compiled May 28 2019, 13:44:56 on x86_64-microsoft-windows6.2 version_prefix = "svn, version " version = self.run_command(["--version"], show_stdout=False, stdout_only=True) if not version.startswith(version_prefix): return () version = version[len(version_prefix) :].split()[0] version_list = version.partition("-")[0].split(".") try: parsed_version = tuple(map(int, version_list)) except ValueError: return () return parsed_version def get_vcs_version(self) -> Tuple[int, ...]: """Return the version of the currently installed Subversion client. If the version of the Subversion client has already been queried, a cached value will be used. :return: A tuple containing the parts of the version information or ``()`` if the version returned from ``svn`` could not be parsed. :raises: BadCommand: If ``svn`` is not installed. """ if self._vcs_version is not None: # Use cached version, if available. # If parsing the version failed previously (empty tuple), # do not attempt to parse it again. return self._vcs_version vcs_version = self.call_vcs_version() self._vcs_version = vcs_version return vcs_version def get_remote_call_options(self) -> CommandArgs: """Return options to be used on calls to Subversion that contact the server. These options are applicable for the following ``svn`` subcommands used in this class. - checkout - switch - update :return: A list of command line arguments to pass to ``svn``. """ if not self.use_interactive: # --non-interactive switch is available since Subversion 0.14.4. # Subversion < 1.8 runs in interactive mode by default. return ["--non-interactive"] svn_version = self.get_vcs_version() # By default, Subversion >= 1.8 runs in non-interactive mode if # stdin is not a TTY. Since that is how pip invokes SVN, in # call_subprocess(), pip must pass --force-interactive to ensure # the user can be prompted for a password, if required. # SVN added the --force-interactive option in SVN 1.8. Since # e.g. RHEL/CentOS 7, which is supported until 2024, ships with # SVN 1.7, pip should continue to support SVN 1.7. Therefore, pip # can't safely add the option if the SVN version is < 1.8 (or unknown). if svn_version >= (1, 8): return ["--force-interactive"] return [] def fetch_new(self, dest: str, url: HiddenText, rev_options: RevOptions) -> None: rev_display = rev_options.to_display() logger.info( "Checking out %s%s to %s", url, rev_display, display_path(dest), ) cmd_args = make_command( "checkout", "-q", self.get_remote_call_options(), rev_options.to_args(), url, dest, ) self.run_command(cmd_args) def switch(self, dest: str, url: HiddenText, rev_options: RevOptions) -> None: cmd_args = make_command( "switch", self.get_remote_call_options(), rev_options.to_args(), url, dest, ) self.run_command(cmd_args) def update(self, dest: str, url: HiddenText, rev_options: RevOptions) -> None: cmd_args = make_command( "update", self.get_remote_call_options(), rev_options.to_args(), dest, ) self.run_command(cmd_args) vcs.register(Subversion)	11.32 KB	2026-01-07 23:39
📄 versioncontrol.py """Handles all VCS (version control) support""" import logging import os import shutil import sys import urllib.parse from typing import ( TYPE_CHECKING, Any, Dict, Iterable, Iterator, List, Mapping, Optional, Tuple, Type, Union, ) from pip._internal.cli.spinners import SpinnerInterface from pip._internal.exceptions import BadCommand, InstallationError from pip._internal.utils.misc import ( HiddenText, ask_path_exists, backup_dir, display_path, hide_url, hide_value, is_installable_dir, rmtree, ) from pip._internal.utils.subprocess import CommandArgs, call_subprocess, make_command from pip._internal.utils.urls import get_url_scheme if TYPE_CHECKING: # Literal was introduced in Python 3.8. # # TODO: Remove `if TYPE_CHECKING` when dropping support for Python 3.7. from typing import Literal __all__ = ["vcs"] logger = logging.getLogger(__name__) AuthInfo = Tuple[Optional[str], Optional[str]] def is_url(name: str) -> bool: """ Return true if the name looks like a URL. """ scheme = get_url_scheme(name) if scheme is None: return False return scheme in ["http", "https", "file", "ftp"] + vcs.all_schemes def make_vcs_requirement_url( repo_url: str, rev: str, project_name: str, subdir: Optional[str] = None ) -> str: """ Return the URL for a VCS requirement. Args: repo_url: the remote VCS url, with any needed VCS prefix (e.g. "git+"). project_name: the (unescaped) project name. """ egg_project_name = project_name.replace("-", "_") req = f"{repo_url}@{rev}#egg={egg_project_name}" if subdir: req += f"&subdirectory={subdir}" return req def find_path_to_project_root_from_repo_root( location: str, repo_root: str ) -> Optional[str]: """ Find the the Python project's root by searching up the filesystem from `location`. Return the path to project root relative to `repo_root`. Return None if the project root is `repo_root`, or cannot be found. """ # find project root. orig_location = location while not is_installable_dir(location): last_location = location location = os.path.dirname(location) if location == last_location: # We've traversed up to the root of the filesystem without # finding a Python project. logger.warning( "Could not find a Python project for directory %s (tried all " "parent directories)", orig_location, ) return None if os.path.samefile(repo_root, location): return None return os.path.relpath(location, repo_root) class RemoteNotFoundError(Exception): pass class RemoteNotValidError(Exception): def __init__(self, url: str): super().__init__(url) self.url = url class RevOptions: """ Encapsulates a VCS-specific revision to install, along with any VCS install options. Instances of this class should be treated as if immutable. """ def __init__( self, vc_class: Type["VersionControl"], rev: Optional[str] = None, extra_args: Optional[CommandArgs] = None, ) -> None: """ Args: vc_class: a VersionControl subclass. rev: the name of the revision to install. extra_args: a list of extra options. """ if extra_args is None: extra_args = [] self.extra_args = extra_args self.rev = rev self.vc_class = vc_class self.branch_name: Optional[str] = None def __repr__(self) -> str: return f"<RevOptions {self.vc_class.name}: rev={self.rev!r}>" @property def arg_rev(self) -> Optional[str]: if self.rev is None: return self.vc_class.default_arg_rev return self.rev def to_args(self) -> CommandArgs: """ Return the VCS-specific command arguments. """ args: CommandArgs = [] rev = self.arg_rev if rev is not None: args += self.vc_class.get_base_rev_args(rev) args += self.extra_args return args def to_display(self) -> str: if not self.rev: return "" return f" (to revision {self.rev})" def make_new(self, rev: str) -> "RevOptions": """ Make a copy of the current instance, but with a new rev. Args: rev: the name of the revision for the new object. """ return self.vc_class.make_rev_options(rev, extra_args=self.extra_args) class VcsSupport: _registry: Dict[str, "VersionControl"] = {} schemes = ["ssh", "git", "hg", "bzr", "sftp", "svn"] def __init__(self) -> None: # Register more schemes with urlparse for various version control # systems urllib.parse.uses_netloc.extend(self.schemes) super().__init__() def __iter__(self) -> Iterator[str]: return self._registry.__iter__() @property def backends(self) -> List["VersionControl"]: return list(self._registry.values()) @property def dirnames(self) -> List[str]: return [backend.dirname for backend in self.backends] @property def all_schemes(self) -> List[str]: schemes: List[str] = [] for backend in self.backends: schemes.extend(backend.schemes) return schemes def register(self, cls: Type["VersionControl"]) -> None: if not hasattr(cls, "name"): logger.warning("Cannot register VCS %s", cls.__name__) return if cls.name not in self._registry: self._registry[cls.name] = cls() logger.debug("Registered VCS backend: %s", cls.name) def unregister(self, name: str) -> None: if name in self._registry: del self._registry[name] def get_backend_for_dir(self, location: str) -> Optional["VersionControl"]: """ Return a VersionControl object if a repository of that type is found at the given directory. """ vcs_backends = {} for vcs_backend in self._registry.values(): repo_path = vcs_backend.get_repository_root(location) if not repo_path: continue logger.debug("Determine that %s uses VCS: %s", location, vcs_backend.name) vcs_backends[repo_path] = vcs_backend if not vcs_backends: return None # Choose the VCS in the inner-most directory. Since all repository # roots found here would be either `location` or one of its # parents, the longest path should have the most path components, # i.e. the backend representing the inner-most repository. inner_most_repo_path = max(vcs_backends, key=len) return vcs_backends[inner_most_repo_path] def get_backend_for_scheme(self, scheme: str) -> Optional["VersionControl"]: """ Return a VersionControl object or None. """ for vcs_backend in self._registry.values(): if scheme in vcs_backend.schemes: return vcs_backend return None def get_backend(self, name: str) -> Optional["VersionControl"]: """ Return a VersionControl object or None. """ name = name.lower() return self._registry.get(name) vcs = VcsSupport() class VersionControl: name = "" dirname = "" repo_name = "" # List of supported schemes for this Version Control schemes: Tuple[str, ...] = () # Iterable of environment variable names to pass to call_subprocess(). unset_environ: Tuple[str, ...] = () default_arg_rev: Optional[str] = None @classmethod def should_add_vcs_url_prefix(cls, remote_url: str) -> bool: """ Return whether the vcs prefix (e.g. "git+") should be added to a repository's remote url when used in a requirement. """ return not remote_url.lower().startswith(f"{cls.name}:") @classmethod def get_subdirectory(cls, location: str) -> Optional[str]: """ Return the path to Python project root, relative to the repo root. Return None if the project root is in the repo root. """ return None @classmethod def get_requirement_revision(cls, repo_dir: str) -> str: """ Return the revision string that should be used in a requirement. """ return cls.get_revision(repo_dir) @classmethod def get_src_requirement(cls, repo_dir: str, project_name: str) -> str: """ Return the requirement string to use to redownload the files currently at the given repository directory. Args: project_name: the (unescaped) project name. The return value has a form similar to the following: {repository_url}@{revision}#egg={project_name} """ repo_url = cls.get_remote_url(repo_dir) if cls.should_add_vcs_url_prefix(repo_url): repo_url = f"{cls.name}+{repo_url}" revision = cls.get_requirement_revision(repo_dir) subdir = cls.get_subdirectory(repo_dir) req = make_vcs_requirement_url(repo_url, revision, project_name, subdir=subdir) return req @staticmethod def get_base_rev_args(rev: str) -> List[str]: """ Return the base revision arguments for a vcs command. Args: rev: the name of a revision to install. Cannot be None. """ raise NotImplementedError def is_immutable_rev_checkout(self, url: str, dest: str) -> bool: """ Return true if the commit hash checked out at dest matches the revision in url. Always return False, if the VCS does not support immutable commit hashes. This method does not check if there are local uncommitted changes in dest after checkout, as pip currently has no use case for that. """ return False @classmethod def make_rev_options( cls, rev: Optional[str] = None, extra_args: Optional[CommandArgs] = None ) -> RevOptions: """ Return a RevOptions object. Args: rev: the name of a revision to install. extra_args: a list of extra options. """ return RevOptions(cls, rev, extra_args=extra_args) @classmethod def _is_local_repository(cls, repo: str) -> bool: """ posix absolute paths start with os.path.sep, win32 ones start with drive (like c:\\folder) """ drive, tail = os.path.splitdrive(repo) return repo.startswith(os.path.sep) or bool(drive) @classmethod def get_netloc_and_auth( cls, netloc: str, scheme: str ) -> Tuple[str, Tuple[Optional[str], Optional[str]]]: """ Parse the repository URL's netloc, and return the new netloc to use along with auth information. Args: netloc: the original repository URL netloc. scheme: the repository URL's scheme without the vcs prefix. This is mainly for the Subversion class to override, so that auth information can be provided via the --username and --password options instead of through the URL. For other subclasses like Git without such an option, auth information must stay in the URL. Returns: (netloc, (username, password)). """ return netloc, (None, None) @classmethod def get_url_rev_and_auth(cls, url: str) -> Tuple[str, Optional[str], AuthInfo]: """ Parse the repository URL to use, and return the URL, revision, and auth info to use. Returns: (url, rev, (username, password)). """ scheme, netloc, path, query, frag = urllib.parse.urlsplit(url) if "+" not in scheme: raise ValueError( "Sorry, {!r} is a malformed VCS url. " "The format is <vcs>+<protocol>://<url>, " "e.g. svn+http://myrepo/svn/MyApp#egg=MyApp".format(url) ) # Remove the vcs prefix. scheme = scheme.split("+", 1)[1] netloc, user_pass = cls.get_netloc_and_auth(netloc, scheme) rev = None if "@" in path: path, rev = path.rsplit("@", 1) if not rev: raise InstallationError( "The URL {!r} has an empty revision (after @) " "which is not supported. Include a revision after @ " "or remove @ from the URL.".format(url) ) url = urllib.parse.urlunsplit((scheme, netloc, path, query, "")) return url, rev, user_pass @staticmethod def make_rev_args( username: Optional[str], password: Optional[HiddenText] ) -> CommandArgs: """ Return the RevOptions "extra arguments" to use in obtain(). """ return [] def get_url_rev_options(self, url: HiddenText) -> Tuple[HiddenText, RevOptions]: """ Return the URL and RevOptions object to use in obtain(), as a tuple (url, rev_options). """ secret_url, rev, user_pass = self.get_url_rev_and_auth(url.secret) username, secret_password = user_pass password: Optional[HiddenText] = None if secret_password is not None: password = hide_value(secret_password) extra_args = self.make_rev_args(username, password) rev_options = self.make_rev_options(rev, extra_args=extra_args) return hide_url(secret_url), rev_options @staticmethod def normalize_url(url: str) -> str: """ Normalize a URL for comparison by unquoting it and removing any trailing slash. """ return urllib.parse.unquote(url).rstrip("/") @classmethod def compare_urls(cls, url1: str, url2: str) -> bool: """ Compare two repo URLs for identity, ignoring incidental differences. """ return cls.normalize_url(url1) == cls.normalize_url(url2) def fetch_new(self, dest: str, url: HiddenText, rev_options: RevOptions) -> None: """ Fetch a revision from a repository, in the case that this is the first fetch from the repository. Args: dest: the directory to fetch the repository to. rev_options: a RevOptions object. """ raise NotImplementedError def switch(self, dest: str, url: HiddenText, rev_options: RevOptions) -> None: """ Switch the repo at ``dest`` to point to ``URL``. Args: rev_options: a RevOptions object. """ raise NotImplementedError def update(self, dest: str, url: HiddenText, rev_options: RevOptions) -> None: """ Update an already-existing repo to the given ``rev_options``. Args: rev_options: a RevOptions object. """ raise NotImplementedError @classmethod def is_commit_id_equal(cls, dest: str, name: Optional[str]) -> bool: """ Return whether the id of the current commit equals the given name. Args: dest: the repository directory. name: a string name. """ raise NotImplementedError def obtain(self, dest: str, url: HiddenText) -> None: """ Install or update in editable mode the package represented by this VersionControl object. :param dest: the repository directory in which to install or update. :param url: the repository URL starting with a vcs prefix. """ url, rev_options = self.get_url_rev_options(url) if not os.path.exists(dest): self.fetch_new(dest, url, rev_options) return rev_display = rev_options.to_display() if self.is_repository_directory(dest): existing_url = self.get_remote_url(dest) if self.compare_urls(existing_url, url.secret): logger.debug( "%s in %s exists, and has correct URL (%s)", self.repo_name.title(), display_path(dest), url, ) if not self.is_commit_id_equal(dest, rev_options.rev): logger.info( "Updating %s %s%s", display_path(dest), self.repo_name, rev_display, ) self.update(dest, url, rev_options) else: logger.info("Skipping because already up-to-date.") return logger.warning( "%s %s in %s exists with URL %s", self.name, self.repo_name, display_path(dest), existing_url, ) prompt = ("(s)witch, (i)gnore, (w)ipe, (b)ackup ", ("s", "i", "w", "b")) else: logger.warning( "Directory %s already exists, and is not a %s %s.", dest, self.name, self.repo_name, ) # https://github.com/python/mypy/issues/1174 prompt = ("(i)gnore, (w)ipe, (b)ackup ", ("i", "w", "b")) # type: ignore logger.warning( "The plan is to install the %s repository %s", self.name, url, ) response = ask_path_exists("What to do? {}".format(prompt[0]), prompt[1]) if response == "a": sys.exit(-1) if response == "w": logger.warning("Deleting %s", display_path(dest)) rmtree(dest) self.fetch_new(dest, url, rev_options) return if response == "b": dest_dir = backup_dir(dest) logger.warning("Backing up %s to %s", display_path(dest), dest_dir) shutil.move(dest, dest_dir) self.fetch_new(dest, url, rev_options) return # Do nothing if the response is "i". if response == "s": logger.info( "Switching %s %s to %s%s", self.repo_name, display_path(dest), url, rev_display, ) self.switch(dest, url, rev_options) def unpack(self, location: str, url: HiddenText) -> None: """ Clean up current location and download the url repository (and vcs infos) into location :param url: the repository URL starting with a vcs prefix. """ if os.path.exists(location): rmtree(location) self.obtain(location, url=url) @classmethod def get_remote_url(cls, location: str) -> str: """ Return the url used at location Raises RemoteNotFoundError if the repository does not have a remote url configured. """ raise NotImplementedError @classmethod def get_revision(cls, location: str) -> str: """ Return the current commit id of the files at the given location. """ raise NotImplementedError @classmethod def run_command( cls, cmd: Union[List[str], CommandArgs], show_stdout: bool = True, cwd: Optional[str] = None, on_returncode: 'Literal["raise", "warn", "ignore"]' = "raise", extra_ok_returncodes: Optional[Iterable[int]] = None, command_desc: Optional[str] = None, extra_environ: Optional[Mapping[str, Any]] = None, spinner: Optional[SpinnerInterface] = None, log_failed_cmd: bool = True, stdout_only: bool = False, ) -> str: """ Run a VCS subcommand This is simply a wrapper around call_subprocess that adds the VCS command name, and checks that the VCS is available """ cmd = make_command(cls.name, *cmd) try: return call_subprocess( cmd, show_stdout, cwd, on_returncode=on_returncode, extra_ok_returncodes=extra_ok_returncodes, command_desc=command_desc, extra_environ=extra_environ, unset_environ=cls.unset_environ, spinner=spinner, log_failed_cmd=log_failed_cmd, stdout_only=stdout_only, ) except FileNotFoundError: # errno.ENOENT = no such file or directory # In other words, the VCS executable isn't available raise BadCommand( f"Cannot find command {cls.name!r} - do you have " f"{cls.name!r} installed and in your PATH?" ) except PermissionError: # errno.EACCES = Permission denied # This error occurs, for instance, when the command is installed # only for another user. So, the current user don't have # permission to call the other user command. raise BadCommand( f"No permission to execute {cls.name!r} - install it " f"locally, globally (ask admin), or check your PATH. " f"See possible solutions at " f"https://pip.pypa.io/en/latest/reference/pip_freeze/" f"#fixing-permission-denied." ) @classmethod def is_repository_directory(cls, path: str) -> bool: """ Return whether a directory path is a repository directory. """ logger.debug("Checking in %s for %s (%s)...", path, cls.dirname, cls.name) return os.path.exists(os.path.join(path, cls.dirname)) @classmethod def get_repository_root(cls, location: str) -> Optional[str]: """ Return the "root" (top-level) directory controlled by the vcs, or `None` if the directory is not in any. It is meant to be overridden to implement smarter detection mechanisms for specific vcs. This can do more than is_repository_directory() alone. For example, the Git override checks that Git is actually available. """ if cls.is_repository_directory(location): return location return None	21.89 KB	2026-01-07 23:39

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