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gentoo.py
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# Copyright (c) 2009, Willow Garage, Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# * Neither the name of the Willow Garage, Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
# Author Murph Finnicum/[email protected]
# A word on atoms
# We'll be using 'atoms' instead of 'packages' for the majority of the gentoo installer.
# Atoms can specify a package version (either exactly, or min/max version), flags it has
# to be built with, and even repositories it has to come from
#
# Here are some valid atoms and their meanings:
# sed // A package named 'sed'
# sys-apps/sed // sed from the category 'sys-apps'. There can be collisions otherwise.
# sys-apps/sed::gentoo // sed from the category 'sys-apps' and the repository 'gentoo' (the default).
# >=sys-apps/sed-4 // sed of at least version 4
# sed[static,-nls] // sed built the static USE flag and withou the nls one
import os
from rospkg.os_detect import OS_GENTOO
from .source import SOURCE_INSTALLER
from ..installers import PackageManagerInstaller
from ..shell_utils import read_stdout
PORTAGE_INSTALLER = 'portage'
def register_installers(context):
context.set_installer(PORTAGE_INSTALLER, PortageInstaller())
def register_platforms(context):
context.add_os_installer_key(OS_GENTOO, PORTAGE_INSTALLER)
context.add_os_installer_key(OS_GENTOO, SOURCE_INSTALLER)
context.set_default_os_installer_key(OS_GENTOO, lambda self: PORTAGE_INSTALLER)
# Determine whether an atom is already satisfied
def portage_detect_single(atom, exec_fn=read_stdout):
"""
Check if a given atom is installed.
:param exec_fn: function to execute Popen and read stdout (for testing)
"""
std_out = exec_fn(['portageq', 'match', '/', atom])
# TODO consdier checking the name of the package returned
# Also, todo, figure out if just returning true if two packages are returned is cool..
return len(std_out) >= 1
def portage_detect(atoms, exec_fn=read_stdout):
"""
Given a list of atoms, return a list of which are already installed.
:param exec_fn: function to execute Popen and read stdout (for testing)
"""
# This is for testing, to make sure they're always checked in the same order
# TODO: make testing better to not need this
if isinstance(atoms, list):
atoms.sort()
return [a for a in atoms if portage_detect_single(a, exec_fn)]
# Check portage and needed tools for existence and compatibility
def portage_available():
if not os.path.exists('/usr/bin/portageq'):
return False
if not os.path.exists('/usr/bin/emerge'):
return False
# We only use standard, defined portage features.
# They work in all released versions of portage, and should work in
# future versionf for a long time to come.
# but .. TODO: Check versions
return True
class PortageInstaller(PackageManagerInstaller):
def __init__(self):
super(PortageInstaller, self).__init__(portage_detect)
def get_install_command(self, resolved, interactive=True, reinstall=False, quiet=False):
atoms = self.get_packages_to_install(resolved, reinstall=reinstall)
cmd = self.elevate_priv(['emerge'])
if not atoms:
return []
if interactive:
cmd.append('-a')
cmd.extend(atoms)
return [cmd]