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#!/usr/bin/env python3
# Copyright 2014 Hewlett-Packard Development Company, L.P.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import argparse
import json
import locale
import os
import subprocess
import sys
from collections import defaultdict
# run a command, return output
# if follow is set, output will be echoed to stdout
def process_output(cmdline, follow=False):
proc = subprocess.Popen(cmdline, stdout=subprocess.PIPE,
stderr=subprocess.STDOUT)
if follow:
print("Running command: %s" % cmdline)
out = ""
with proc.stdout:
for line in iter(proc.stdout.readline, b''):
line = line.decode(encoding=locale.getpreferredencoding(False),
errors='backslashreplace')
out += line
print("> %s" % line, end="")
proc.wait()
print("returncode: %d" % proc.returncode)
else:
out = proc.communicate()[0].decode(errors='backslashreplace')
if proc.returncode:
e = subprocess.CalledProcessError(proc.returncode, cmdline)
e.output = out
raise e
return out
def main():
dbg_level = int(os.getenv('DIB_DEBUG_TRACE', '0'))
parser = argparse.ArgumentParser(
description="Install or uninstall packages for a specific phase based"
" on package-installs files.")
parser.add_argument('--phase', required=True,
help="Install phase to filter on. Valid options are"
" 'install.d' or pre-install.d")
parser.add_argument('--uninstall', action="store_true",
help="Only show packages to uninstall. By default only"
" packages to install are shown")
parser.add_argument('-n', '--noop', action="store_true",
help="Don't actually install, just print the command")
parser.add_argument('infile', help="File to process")
args = parser.parse_args()
packages = json.load(open(args.infile))
if args.uninstall:
install = "uninstall"
else:
install = "install"
pkgs = list()
if args.phase in packages and install in packages[args.phase]:
install_packages = packages[args.phase][install]
else:
print("Nothing to %s" % install)
sys.exit(0)
# sort the list by element, this way we only do one pkg-map call
# per element
by_element = defaultdict(list)
for (pkg, element) in install_packages:
by_element[element].append(pkg)
for element, packages in by_element.items():
print("Map %s for %s: %s" % (install, element, ', '.join(packages)))
# Only trace pkg-map for higher levels of debugging. Note
# that pkg-map debug output comes out on stderr, which is
# captured into the output by process_output. We filter by
# "prefix" so we don't think the debug lines are packages!
pkg_map_args = ['pkg-map', '--prefix', '-',
'--missing-ok', '--element', element]
if dbg_level > 1:
pkg_map_args.append('--debug')
pkg_map_args.extend(packages)
try:
follow = True if dbg_level > 1 else False
map_output = process_output(pkg_map_args, follow=follow)
map_output = map_output.strip().split('\n')
map_output = [m[1:] for m in map_output if m.startswith('-')]
pkgs.extend(map_output)
except subprocess.CalledProcessError as e:
if e.returncode == 1:
if args.noop:
pkgs.append(pkg)
continue
else:
print("pkg-map failed")
sys.exit(1)
elif e.returncode == 2:
pkgs.append(pkg)
continue
install_args = ["install-packages"]
if args.uninstall:
install_args.append("-e")
install_args.extend(list(set(pkgs)))
if args.noop:
print(" ".join(install_args))
else:
try:
process_output(install_args, follow=True)
except subprocess.CalledProcessError as e:
print("install-packages failed with returncode %d" % e.returncode)
sys.exit(1)
if __name__ == '__main__':
main()
# Tell emacs to use python-mode
# Local variables:
# mode: python
# End:
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