Rework package-installs to collapse on build host
Instead of doing the work in the image of parsing through the element's package-install declarations, we can squash it on hostside, where we have both YAML and JSON available to us, and then emit a single pre-processed file into the target to be used later. Change-Id: I3f182aa3aae0a79b2f3ea4e66c1878ad12878b0a
This commit is contained in:
Monty Taylor
Gregory Haynes
parent
1273cd5532
commit
98d008c6af
82
elements/package-installs/bin/package-installs-squash
Executable file
82
elements/package-installs/bin/package-installs-squash
Executable file
@ -0,0 +1,82 @@
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#!/usr/bin/env python
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# Copyright 2014 Hewlett-Packard Development Company, L.P.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import argparse
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import collections
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import functools
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import json
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import os
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import yaml
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def collect_data(data, filename, element_name):
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try:
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objs = json.load(open(filename))
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except ValueError:
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objs = yaml.load(open(filename))
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for pkg_name, params in objs.items():
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if not params:
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params = {}
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phase = params.get('phase', 'install.d')
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install = "install"
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if 'uninstall' in params:
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install = "uninstall"
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data[phase][install].append((pkg_name, element_name))
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return data
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def main():
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parser = argparse.ArgumentParser(
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description="Produce a single packages-installs file from all of"
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" the available package-installs files")
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parser.add_argument('--elements', required=True,
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help="Which elements to squash")
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parser.add_argument('--path', required=True,
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help="Elements path to search for elements")
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parser.add_argument('outfile', help="Location of the output file")
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args = parser.parse_args()
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# Replicate the logic of finding the first element, because we can't
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# operate on the post-copied hooks dir, since we lose element context
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element_dirs = list()
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for element_name in args.elements.split():
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for elements_dir in args.path.split(':'):
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potential_path = os.path.join(elements_dir, element_name)
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if os.path.exists(potential_path):
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element_dirs.append((elements_dir, element_name))
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# Collect the merge of all of the existing install files in the elements
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# that are the first on the ELEMENT_PATH
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final_dict = collections.defaultdict(
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functools.partial(collections.defaultdict, list))
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for (elements_dir, element_name) in element_dirs:
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for file_type in ('json', 'yaml'):
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target_file = os.path.join(
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elements_dir, element_name, "package-installs.%s" % file_type)
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if not os.path.exists(target_file):
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continue
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final_dict = collect_data(final_dict, target_file, element_name)
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# Write the resulting file
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with open(args.outfile, 'w') as outfile:
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json.dump(
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final_dict, outfile,
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indent=True, separators=(',', ': '), sort_keys=False)
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if __name__ == '__main__':
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main()
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@ -15,126 +15,68 @@
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# under the License.
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import argparse
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from json import load as json_load
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import os
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import json
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import subprocess
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import sys
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from yaml import load as yaml_load
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class PackageInstalls(object):
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@classmethod
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def phase_to_attr(cls, phase):
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return phase.replace('.', '_').replace('-', '_')
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@classmethod
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def from_yaml_path(cls, path):
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with open(path) as fp:
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return PackageInstalls.from_native_objs(yaml_load(fp))
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@classmethod
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def from_json_path(cls, path):
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with open(path) as fp:
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return PackageInstalls.from_native_objs(json_load(fp))
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@classmethod
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def from_native_objs(cls, objs):
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init_args = {}
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for pkg_name, params in objs.items():
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uninstall = False
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phase = "install.d"
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try:
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phase = params["phase"]
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except (KeyError, TypeError):
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pass
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try:
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uninstall = bool(params["uninstall"])
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except (KeyError, TypeError):
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pass
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init_arg = PackageInstalls.phase_to_attr(phase)
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if uninstall:
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init_arg = init_arg + '_uninst'
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init_args[init_arg] = init_args.get(init_arg, []) + [pkg_name]
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return PackageInstalls(**init_args)
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def __init__(self, **phase_installs):
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for phase, pkgs in phase_installs.items():
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setattr(self, phase, pkgs)
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class PackageInstallsController(object):
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def __init__(self, path='/usr/share/package-installs'):
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self.path = path
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def package_installs(self):
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for yaml_path in os.listdir(self.path):
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full_path = os.path.join(self.path, yaml_path)
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if full_path.endswith('.yaml'):
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pi = PackageInstalls.from_yaml_path(full_path)
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elif full_path.endswith('.json'):
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pi = PackageInstalls.from_json_path(full_path)
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else:
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print("No decoder known for %s, skipping" % full_path)
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continue
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yield (yaml_path[:-5], pi)
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def main():
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parser = argparse.ArgumentParser(
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description="Install or uninstall packages for a specific phase based"
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" on package-installs files.")
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parser.add_argument('--phase',
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parser.add_argument('--phase', required=True,
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help="Install phase to filter on. Valid options are"
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" 'install.d' or pre-install.d")
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parser.add_argument('--uninstall', action="store_true",
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help="Only show packages to uninstall. By default only"
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" packages to install are shown")
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args, extra = parser.parse_known_args()
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parser.add_argument('-n', '--noop', action="store_true",
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help="Don't actually install, just print the command")
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parser.add_argument('infile', help="File to process")
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args = parser.parse_args()
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if not args.phase:
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print("Please specify an install phase.")
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sys.exit(1)
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pi_c = PackageInstallsController()
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pkgs = []
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for element, pi in pi_c.package_installs():
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installs_attr = PackageInstalls.phase_to_attr(args.phase)
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packages = json.load(open(args.infile))
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if args.uninstall:
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installs_attr += '_uninst'
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install = "uninstall"
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else:
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install = "install"
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try:
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phase_installs = getattr(pi, installs_attr)
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except AttributeError:
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continue
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pkgs = list()
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if args.phase in packages and install in packages[args.phase]:
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install_packages = packages[args.phase][install]
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else:
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print("Nothing to %s" % install)
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sys.exit(0)
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for pkg in phase_installs:
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print("Installing %s from %s" % (phase_installs, element))
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for (pkg, element) in install_packages:
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print("%sing %s from %s" % (install, pkg, element))
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pkg_map_args = ["pkg-map", "--missing-ok", "--element", element]
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pkg_map_args += phase_installs
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pkg_map_args.append(pkg)
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try:
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map_output = subprocess.check_output(pkg_map_args)
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map_output = subprocess.check_output(
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pkg_map_args, stderr=subprocess.STDOUT)
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except subprocess.CalledProcessError as e:
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if e.returncode == 1:
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if args.noop:
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pkgs.append(pkg)
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continue
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else:
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print("pkg-map failed with error %s" % e.output)
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sys.exit(1)
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elif e.returncode == 2:
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pkgs += phase_installs
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pkgs.append(pkg)
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continue
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pkgs += map_output.strip().split('\n')
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pkgs.extend(map_output.strip().split('\n'))
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install_args = ["install-packages"]
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if args.uninstall:
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install_args.append("-e")
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install_args.extend(pkgs)
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install_args.extend(list(set(pkgs)))
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if args.noop:
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print(" ".join(install_args))
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else:
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try:
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subprocess.check_output(install_args)
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except subprocess.CalledProcessError as e:
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@ -1,14 +0,0 @@
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#!/bin/bash
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set -eux
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set -o pipefail
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dest_dir="$TMP_MOUNT_PATH/usr/share/package-installs/"
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sudo mkdir -p $dest_dir
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for ELEMENT in $IMAGE_ELEMENT ; do
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for DIR in ${ELEMENTS_PATH//:/ }; do
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if [ -f "$DIR/$ELEMENT/package-installs.yaml" ]; then
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sudo cp $DIR/$ELEMENT/package-installs.yaml $dest_dir/$ELEMENT.yaml
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fi
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done
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done
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5
elements/package-installs/extra-data.d/99-squash-package-install
Executable file
5
elements/package-installs/extra-data.d/99-squash-package-install
Executable file
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#!/bin/bash
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set -eux
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set -o pipefail
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sudo $(dirname $0)/../bin/package-installs-squash --elements="$IMAGE_ELEMENT" --path=$ELEMENTS_PATH $TMP_MOUNT_PATH/tmp/package-installs.json
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@ -4,4 +4,4 @@ set -eux
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set -o pipefail
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package-installs -d $(dirname $0)
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package-installs-v2 --phase install.d
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package-installs-v2 --phase install.d /tmp/package-installs.json
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@ -4,4 +4,4 @@ set -eux
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set -o pipefail
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package-uninstalls -d $(dirname $0)
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package-installs-v2 --phase install.d --uninstall
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package-installs-v2 --phase install.d --uninstall /tmp/package-installs.json
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@ -4,4 +4,4 @@ set -eux
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set -o pipefail
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package-installs -d $(dirname $0)
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package-installs-v2 --phase post-install.d
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package-installs-v2 --phase post-install.d /tmp/package-installs.json
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@ -4,4 +4,4 @@ set -eux
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set -o pipefail
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package-uninstalls -d $(dirname $0)
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package-installs-v2 --phase post-install.d --uninstall
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package-installs-v2 --phase post-install.d --uninstall /tmp/package-installs.json
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@ -4,4 +4,4 @@ set -eux
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set -o pipefail
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package-installs -d $(dirname $0)
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package-installs-v2 --phase pre-install.d
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package-installs-v2 --phase pre-install.d /tmp/package-installs.json
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@ -4,4 +4,4 @@ set -eux
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set -o pipefail
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package-uninstalls -d $(dirname $0)
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package-installs-v2 --phase pre-install.d --uninstall
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package-installs-v2 --phase pre-install.d --uninstall /tmp/package-installs.json
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