From 6a2e8e8c5880fa7f35ef90fbfeea8dfbbfc048a1 Mon Sep 17 00:00:00 2001 From: Nick Bowler Date: Sat, 26 Sep 2015 17:16:17 -0400 Subject: [PATCH] Initial commit --- .gitignore | 4 + COPYING | 340 ++++++++++++++++++ portage/sync/modules/squashmirror/__init__.py | 48 +++ .../sync/modules/squashmirror/squashmirror.py | 91 +++++ setup.py | 5 + 5 files changed, 488 insertions(+) create mode 100644 .gitignore create mode 100644 COPYING create mode 100644 portage/sync/modules/squashmirror/__init__.py create mode 100644 portage/sync/modules/squashmirror/squashmirror.py create mode 100644 setup.py diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..222bca5 --- /dev/null +++ b/.gitignore @@ -0,0 +1,4 @@ +/dist/ +/build/ +__pycache__/ +*.egg-info/ diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..3912109 --- /dev/null +++ b/COPYING @@ -0,0 +1,340 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. 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If this is what you want to do, use the GNU Library General +Public License instead of this License. diff --git a/portage/sync/modules/squashmirror/__init__.py b/portage/sync/modules/squashmirror/__init__.py new file mode 100644 index 0000000..d02acdc --- /dev/null +++ b/portage/sync/modules/squashmirror/__init__.py @@ -0,0 +1,48 @@ +# Copyright © 2015 Nick Bowler +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY of FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see + +from portage.sync.config_checks import CheckSyncConfig + +class CheckSquashConfig(CheckSyncConfig): + def __init__(self, repo, logger): + CheckSyncConfig.__init__(self, repo, logger) + self.checks.append('set_defaults') + + def set_defaults(self): + opts = self.repo.module_specific_options + if not 'squash-cache-location' in opts: + opts['squash-cache-location'] = "/var/cache/portage" + if not 'squash-compression' in opts: + opts['squash-compression'] = "gzip" + if not 'squash-extra-opts' in opts: + opts['squash-extra-opts'] = "-e distfiles -e packages -e local" + +module_spec = { + 'name': 'squashmirror', + 'description': __doc__, + 'provides': { + 'squashmirror-module': { + 'name': 'squashmirror', + 'description': __doc__, + 'class': 'SquashMirror', + 'validate_config': CheckSquashConfig, + 'module_specific_options': ( + 'squash-cache-location', + 'squash-compression', + 'squash-extra-opts', + ), + } + } +} diff --git a/portage/sync/modules/squashmirror/squashmirror.py b/portage/sync/modules/squashmirror/squashmirror.py new file mode 100644 index 0000000..d4a5d3d --- /dev/null +++ b/portage/sync/modules/squashmirror/squashmirror.py @@ -0,0 +1,91 @@ +# Copyright © 2015 Nick Bowler +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY of FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see + +import time +import email.utils +import logging +import contextlib + +import portage +from portage import os +from portage.util import writemsg_level +from portage.process import spawn +from portage.sync.syncbase import NewBase + +# Determine snapshot date. While timestamps from snapshots indicate +# early in the day (UTC), filenames indicate the previous day (snapshot +# at end of day). Simply subtract 4 hours before calculating the day +# to accomodate this difference, assuming snapshot generation is faster +# than that. +def repo_date(repo): + with open(repo.sync_uri + '/metadata/timestamp.chk', 'r') as f: + timestamp = f.readline() + repotime = email.utils.mktime_tz(email.utils.parsedate_tz(timestamp)) + return time.strftime("%Y%m%d", time.gmtime(repotime - 4*3600)) + +def repo_filename(repo): + opts = repo.module_specific_options + return '%s/%s-%s.sqfs' % (opts['squash-cache-location'], + repo.name, repo_date(repo)) + +class SquashMirror(NewBase): + def __init__(self): + NewBase.__init__(self, 'mksquashfs', 'sys-fs/squashfs-tools') + + def msg(self, msg, level=0, noiselevel=0): + self.logger(self.xterm_titles, msg) + writemsg_level(msg + "\n", level, noiselevel) + + def err(self, msg, level=0, noiselevel=0): + self.msg("!!! " + msg, level=logging.ERROR, noiselevel=-1) + + def exists(self, **kwargs): + if kwargs: + self._kwargs(kwargs) + elif not self.repo: + return False + if not os.path.exists(repo_filename(self.repo)): + return False + return True; + + def new(self, **kwargs): + opts = self.repo.module_specific_options + filename = repo_filename(self.repo) + self.msg("Creating squashfs image " + filename) + + args = [self.bin_command] + args.extend([self.repo.sync_uri, filename]) + args.extend(['-no-xattrs']) + args.extend(['-force-uid', 'portage', '-force-gid', 'portage']) + args.extend(['-comp', opts['squash-compression']]) + args.extend(opts['squash-extra-opts'].split()) + + rc = spawn(args, **portage._native_kwargs(self.spawn_kwargs)) + if rc != os.EX_OK: + self.err("command failed: %s" % " ".join(args)) + return (rc, False) + + symlink = "%s/%s-current.sqfs" % (opts['squash-cache-location'], + self.repo.name) + + with contextlib.suppress(FileNotFoundError): + os.remove(symlink) + os.symlink(os.path.basename(filename), symlink) + return (0, True) + + def update(self, **kwargs): + filename = repo_filename(self.repo) + self.err("%s already exists; exiting." % filename); + return (1, False) diff --git a/setup.py b/setup.py new file mode 100644 index 0000000..ea3b5be --- /dev/null +++ b/setup.py @@ -0,0 +1,5 @@ +from setuptools import setup + +setup(name='squashmirror', + version='1', + packages=['portage.sync.modules.squashmirror']) -- 2.43.0