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from __future__ import absolute_import import logging import os import tempfile from pip.utils import display_path, rmtree from pip.vcs import vcs, VersionControl from pip.download import path_to_url from pip._vendor.six.moves import configparser logger = logging.getLogger(__name__) class Mercurial(VersionControl): name = 'hg' dirname = '.hg' repo_name = 'clone' schemes = ('hg', 'hg+http', 'hg+https', 'hg+ssh', 'hg+static-http') def export(self, location): """Export the Hg repository at the url to the destination location""" temp_dir = tempfile.mkdtemp('-export', 'pip-') self.unpack(temp_dir) try: self.run_command( ['archive', location], show_stdout=False, cwd=temp_dir) finally: rmtree(temp_dir) def switch(self, dest, url, rev_options): repo_config = os.path.join(dest, self.dirname, 'hgrc') config = configparser.SafeConfigParser() try: config.read(repo_config) config.set('paths', 'default', url) 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: self.run_command(['update', '-q'] + rev_options, cwd=dest) def update(self, dest, rev_options): self.run_command(['pull', '-q'], cwd=dest) self.run_command(['update', '-q'] + rev_options, cwd=dest) def obtain(self, dest): url, rev = self.get_url_rev() if rev: rev_options = [rev] rev_display = ' (to revision %s)' % rev else: rev_options = [] rev_display = '' if self.check_destination(dest, url, rev_options, rev_display): logger.info( 'Cloning hg %s%s to %s', url, rev_display, display_path(dest), ) self.run_command(['clone', '--noupdate', '-q', url, dest]) self.run_command(['update', '-q'] + rev_options, cwd=dest) def get_url(self, location): url = self.run_command( ['showconfig', 'paths.default'], show_stdout=False, cwd=location).strip() if self._is_local_repository(url): url = path_to_url(url) return url.strip() def get_revision(self, location): current_revision = self.run_command( ['parents', '--template={rev}'], show_stdout=False, cwd=location).strip() return current_revision def get_revision_hash(self, location): current_rev_hash = self.run_command( ['parents', '--template={node}'], show_stdout=False, cwd=location).strip() return current_rev_hash def get_src_requirement(self, dist, location): repo = self.get_url(location) if not repo.lower().startswith('hg:'): repo = 'hg+' + repo egg_project_name = dist.egg_name().split('-', 1)[0] if not repo: return None current_rev_hash = self.get_revision_hash(location) return '%s@%s#egg=%s' % (repo, current_rev_hash, egg_project_name) def check_version(self, dest, rev_options): """Always assume the versions don't match""" return False vcs.register(Mercurial)
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