You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
528 lines
18 KiB
528 lines
18 KiB
import logging
|
|
import os.path
|
|
import pathlib
|
|
import re
|
|
import urllib.parse
|
|
import urllib.request
|
|
from dataclasses import replace
|
|
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"],
|
|
command_desc="git 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 (int(match.group(1)), int(match.group(2)))
|
|
|
|
@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 = replace(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, verbosity: int
|
|
) -> None:
|
|
rev_display = rev_options.to_display()
|
|
logger.info("Cloning %s%s to %s", url, rev_display, display_path(dest))
|
|
if verbosity <= 0:
|
|
flags: Tuple[str, ...] = ("--quiet",)
|
|
elif verbosity == 1:
|
|
flags = ()
|
|
else:
|
|
flags = ("--verbose", "--progress")
|
|
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",
|
|
*flags,
|
|
url,
|
|
dest,
|
|
)
|
|
)
|
|
else:
|
|
self.run_command(make_command("clone", *flags, 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)
|