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# Copyright 2018-2020 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
import logging
import subprocess
import portage
from portage import os
from portage.util import writemsg_level, shlex_split
from portage.sync.syncbase import NewBase
class MercurialSync(NewBase):
"""Mercurial sync class"""
short_desc = "Perform sync operations on mercurial based repositories"
@staticmethod
def name():
return "MercurialSync"
def __init__(self):
NewBase.__init__(self, "hg", portage.const.HG_PACKAGE_ATOM)
def exists(self, **kwargs):
"""Tests whether the repo actually exists"""
return os.path.exists(os.path.join(self.repo.location, ".hg"))
def new(self, **kwargs):
"""Do the initial clone of the repository"""
if kwargs:
self._kwargs(kwargs)
try:
if not os.path.exists(self.repo.location):
os.makedirs(self.repo.location)
self.logger(
self.xterm_titles, "Created new directory %s" % self.repo.location
)
except IOError:
return (1, False)
sync_uri = self.repo.sync_uri
if sync_uri.startswith("file://"):
sync_uri = sync_uri[7:]
hg_cmd_opts = ""
if self.repo.module_specific_options.get("sync-mercurial-env"):
shlexed_env = shlex_split(
self.repo.module_specific_options["sync-mercurial-env"]
)
env = dict(
(k, v)
for k, _, v in (assignment.partition("=") for assignment in shlexed_env)
if k
)
self.spawn_kwargs["env"].update(env)
if self.repo.module_specific_options.get("sync-mercurial-clone-env"):
shlexed_env = shlex_split(
self.repo.module_specific_options["sync-mercurial-clone-env"]
)
clone_env = dict(
(k, v)
for k, _, v in (assignment.partition("=") for assignment in shlexed_env)
if k
)
self.spawn_kwargs["env"].update(clone_env)
if self.settings.get("PORTAGE_QUIET") == "1":
hg_cmd_opts += " --quiet"
if self.repo.module_specific_options.get("sync-mercurial-clone-extra-opts"):
hg_cmd_opts += (
" %s"
% self.repo.module_specific_options["sync-mercurial-clone-extra-opts"]
)
hg_cmd = "%s clone%s %s ." % (
self.bin_command,
hg_cmd_opts,
portage._shell_quote(sync_uri),
)
writemsg_level(hg_cmd + "\n")
exitcode = portage.process.spawn(
shlex_split(hg_cmd),
cwd=portage._unicode_encode(self.repo.location),
**self.spawn_kwargs
)
if exitcode != os.EX_OK:
msg = "!!! hg clone error in %s" % self.repo.location
self.logger(self.xterm_titles, msg)
writemsg_level(msg + "\n", level=logging.ERROR, noiselevel=-1)
return (exitcode, False)
return (os.EX_OK, True)
def update(self):
"""Update existing mercurial repository, and ignore the syncuri. We are
going to trust the user and assume that the user is in the branch
that he/she wants updated. We'll let the user manage branches with
hg directly.
"""
hg_cmd_opts = ""
if self.repo.module_specific_options.get("sync-mercurial-env"):
shlexed_env = shlex_split(
self.repo.module_specific_options["sync-mercurial-env"]
)
env = dict(
(k, v)
for k, _, v in (assignment.partition("=") for assignment in shlexed_env)
if k
)
self.spawn_kwargs["env"].update(env)
if self.repo.module_specific_options.get("sync-mercurial-pull-env"):
shlexed_env = shlex_split(
self.repo.module_specific_options["sync-mercurial-pull-env"]
)
pull_env = dict(
(k, v)
for k, _, v in (assignment.partition("=") for assignment in shlexed_env)
if k
)
self.spawn_kwargs["env"].update(pull_env)
if self.settings.get("PORTAGE_QUIET") == "1":
hg_cmd_opts += " --quiet"
if self.repo.module_specific_options.get("sync-mercurial-pull-extra-opts"):
hg_cmd_opts += (
" %s"
% self.repo.module_specific_options["sync-mercurial-pull-extra-opts"]
)
hg_cmd = "%s pull -u%s" % (self.bin_command, hg_cmd_opts)
writemsg_level(hg_cmd + "\n")
rev_cmd = [self.bin_command, "id", "--id", "--rev", "tip"]
previous_rev = subprocess.check_output(
rev_cmd, cwd=portage._unicode_encode(self.repo.location)
)
exitcode = portage.process.spawn(
shlex_split(hg_cmd),
cwd=portage._unicode_encode(self.repo.location),
**self.spawn_kwargs
)
if exitcode != os.EX_OK:
msg = "!!! hg pull error in %s" % self.repo.location
self.logger(self.xterm_titles, msg)
writemsg_level(msg + "\n", level=logging.ERROR, noiselevel=-1)
return (exitcode, False)
current_rev = subprocess.check_output(
rev_cmd, cwd=portage._unicode_encode(self.repo.location)
)
return (os.EX_OK, current_rev != previous_rev)
def retrieve_head(self, **kwargs):
"""Get information about the head commit"""
if kwargs:
self._kwargs(kwargs)
rev_cmd = [self.bin_command, "id", "--id", "--rev", "tip"]
try:
ret = (
os.EX_OK,
portage._unicode_decode(
subprocess.check_output(
rev_cmd, cwd=portage._unicode_encode(self.repo.location)
)
),
)
except subprocess.CalledProcessError:
ret = (1, False)
return ret
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