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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)
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