[services] add kernel-switcher tool - a kernel switcher utility
This should make many users happy :-)
This commit is contained in:
Fabio Erculiani
1
Makefile
1
Makefile
@@ -84,6 +84,7 @@ equo-install:
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install -m 644 client/revision $(DESTDIR)/$(LIBDIR)/entropy/client/
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install -m 644 client/entropy-system-test-client $(DESTDIR)/$(LIBDIR)/entropy/client/
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install -m 755 client/equo.py $(DESTDIR)/$(LIBDIR)/entropy/client/
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install -m 755 services/kernel-switcher $(DESTDIR)$(BINDIR)/
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ln -sf /$(LIBDIR)/entropy/client/equo.py $(DESTDIR)$(BINDIR)/equo
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@@ -9,7 +9,7 @@ NLSPACKAGE = entropy
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CATALOGS = $(shell ls *.po)
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FMTCATALOGS = $(patsubst %.po,%.mo,$(CATALOGS))
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GLADEFILES = $(wildcard ../../sulfur/src/sulfur/*.glade) $(wildcard ../../magneto/src/magneto/gtk/*.glade)
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PYFILES = $(wildcard ../../libraries/entropy/transceivers/uri_handlers/*.py) $(wildcard ../../libraries/entropy/transceivers/uri_handlers/plugins/*.py) $(wildcard ../../libraries/entropy/transceivers/*.py) $(wildcard ../../libraries/entropy/db/*.py) $(wildcard ../../libraries/entropy/core/*.py) $(wildcard ../../libraries/entropy/core/settings/*.py) $(wildcard ../../libraries/entropy/core/settings/plugins/*.py) $(wildcard ../../libraries/entropy/core/settings/plugins/interfaces/*.py) $(wildcard ../../libraries/entropy/spm/*.py) $(wildcard ../../libraries/entropy/spm/plugins/*.py) $(wildcard ../../libraries/entropy/spm/plugins/portage_plugin/*.py) $(wildcard ../../libraries/entropy/spm/plugins/interfaces/portage_plugin/*.py) $(wildcard ../../libraries/entropy/spm/plugins/interfaces/*.py) $(wildcard ../../libraries/entropy/services/system/*.py) $(wildcard ../../libraries/entropy/services/ugc/*.py) $(wildcard ../../libraries/entropy/services/repository/*.py) $(wildcard ../../libraries/entropy/services/*.py) $(wildcard ../../libraries/entropy/server/*.py) $(wildcard ../../libraries/entropy/server/interfaces/*.py) $(wildcard ../../libraries/entropy/client/services/ugc/*.py) $(wildcard ../../libraries/entropy/client/services/system/*.py) $(wildcard ../../libraries/entropy/client/services/*.py) $(wildcard ../../libraries/entropy/client/*.py) $(wildcard ../../libraries/entropy/client/interfaces/*.py) $(wildcard ../../libraries/entropy/*.py) $(wildcard ../../libraries/*.py) $(wildcard ../../client/*.py) $(wildcard ../../server/*.py) $(wildcard ../../sulfur/src/*.py) $(wildcard ../../sulfur/src/sulfur/*.py) $(wildcard ../../magneto/src/magneto/kde/*.py) $(wildcard ../../magneto/src/magneto/gtk/*.py) $(wildcard ../../magneto/src/magneto/core/*.py)
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PYFILES = $(wildcard ../../libraries/entropy/transceivers/uri_handlers/*.py) $(wildcard ../../libraries/entropy/transceivers/uri_handlers/plugins/*.py) $(wildcard ../../libraries/entropy/transceivers/*.py) $(wildcard ../../libraries/entropy/db/*.py) $(wildcard ../../libraries/entropy/core/*.py) $(wildcard ../../libraries/entropy/core/settings/*.py) $(wildcard ../../libraries/entropy/core/settings/plugins/*.py) $(wildcard ../../libraries/entropy/core/settings/plugins/interfaces/*.py) $(wildcard ../../libraries/entropy/spm/*.py) $(wildcard ../../libraries/entropy/spm/plugins/*.py) $(wildcard ../../libraries/entropy/spm/plugins/portage_plugin/*.py) $(wildcard ../../libraries/entropy/spm/plugins/interfaces/portage_plugin/*.py) $(wildcard ../../libraries/entropy/spm/plugins/interfaces/*.py) $(wildcard ../../libraries/entropy/services/system/*.py) $(wildcard ../../libraries/entropy/services/ugc/*.py) $(wildcard ../../libraries/entropy/services/repository/*.py) $(wildcard ../../libraries/entropy/services/*.py) $(wildcard ../../libraries/entropy/server/*.py) $(wildcard ../../libraries/entropy/server/interfaces/*.py) $(wildcard ../../libraries/entropy/client/services/ugc/*.py) $(wildcard ../../libraries/entropy/client/services/system/*.py) $(wildcard ../../libraries/entropy/client/services/*.py) $(wildcard ../../libraries/entropy/client/*.py) $(wildcard ../../libraries/entropy/client/interfaces/*.py) $(wildcard ../../libraries/entropy/*.py) $(wildcard ../../libraries/*.py) $(wildcard ../../client/*.py) $(wildcard ../../server/*.py) $(wildcard ../../sulfur/src/*.py) $(wildcard ../../sulfur/src/sulfur/*.py) $(wildcard ../../magneto/src/magneto/kde/*.py) $(wildcard ../../magneto/src/magneto/gtk/*.py) $(wildcard ../../magneto/src/magneto/core/*.py) ../../services/kernel-switcher
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POTFILES = $(PYFILES) $(GLADEFILES)
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all: $(NLSPACKAGE).pot $(FMTCATALOGS)
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198
services/kernel-switcher
Executable file
198
services/kernel-switcher
Executable file
@@ -0,0 +1,198 @@
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#!/usr/bin/python2
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import sys
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sys.path.insert(0, '/usr/lib/entropy/libraries')
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sys.path.insert(0, '/usr/lib/entropy/server')
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sys.path.insert(0, '/usr/lib/entropy/client')
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sys.path.insert(0, '../libraries')
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sys.path.insert(0, '../server')
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sys.path.insert(0, '../client')
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import os
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from entropy.const import etpUi, etpConst
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from entropy.output import teal, purple, darkgreen, blue, brown, print_info, \
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nocolor, print_warning, print_error
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from entropy.exceptions import DependenciesNotRemovable
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from entropy.i18n import _
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from entropy.client.interfaces import Client
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import entropy.dep
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# equo modules
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from text_query import print_package_info
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from text_tools import acquire_entropy_locks, release_entropy_locks
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from text_ui import install_packages
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APP_NAME = os.path.basename(sys.argv[0])
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KERNEL_BINARY_VIRTUAL = "virtual/linux-binary"
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def _get_kernels(etp_client):
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matches, x_rc = etp_client.atom_match(KERNEL_BINARY_VIRTUAL,
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multi_match = True, multi_repo = True)
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return matches, x_rc
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def _remove_tag_from_slot(slot):
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if not hasattr(entropy.dep, "remove_tag_from_slot"):
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# backward compatibility
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return slot[::-1].split(",", 1)[-1][::-1]
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return entropy.dep.remove_tag_from_slot(slot)
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def _get_target_tag(etp_client, kernel_match):
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try:
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matches = etp_client.get_reverse_queue([kernel_match],
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recursive = False)
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except DependenciesNotRemovable:
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# wtf should not happen
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raise
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tags = set()
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for pkg_id, pkg_repo in matches:
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tag = etp_client.open_repository(pkg_repo).retrieveTag(pkg_id)
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if tag:
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tags.add(tag)
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if tags:
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tags = sorted(tags, reverse = True)
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return tags.pop(0)
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def _switch_kernel(args):
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if not args:
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print_error(brown(_("No kernel packages given")))
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return 1
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if len(args) > 1:
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print_error(brown(_("More than one kernel package given")))
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return 1
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kernel_package = args.pop(0)
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etp_client = None
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acquired = False
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try:
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etp_client = Client()
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acquired = acquire_entropy_locks(etp_client)
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if not acquired:
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print_error(brown(_("Another Entropy is currently running.")))
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return 1
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pkg_id, pkg_repo = etp_client.atom_match(kernel_package)
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if pkg_id == -1:
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print_error("%s: %s" % (brown(_("Package does not exist")),
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teal(kernel_package),))
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return 1
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kernel_matches, rc = _get_kernels(etp_client)
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kernel_match = (pkg_id, pkg_repo)
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if kernel_match not in kernel_matches:
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print_error("%s: %s" % (brown(_("Not a kernel")),
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teal(kernel_package),))
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return 1
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target_tag = _get_target_tag(etp_client, kernel_match)
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inst_repo = etp_client.installed_repository()
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latest_kernel, k_rc = inst_repo.atomMatch(KERNEL_BINARY_VIRTUAL)
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installed_revdeps = []
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if (latest_kernel != -1) and target_tag:
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installed_revdeps = etp_client.get_removal_queue([latest_kernel],
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recursive = False)
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# only pull in packages that are installed at this time.
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def _installed_pkgs_translator(inst_pkg_id):
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if inst_pkg_id == latest_kernel:
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# will be added later
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return None
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key, slot = inst_repo.retrieveKeySlot(inst_pkg_id)
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target_slot = _remove_tag_from_slot(slot) + "," + target_tag
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pkg_id, pkg_repo = etp_client.atom_match(key,
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match_slot = target_slot)
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if pkg_id == -1:
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return None
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return pkg_id, pkg_repo
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matches = map(_installed_pkgs_translator, installed_revdeps)
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matches = [x for x in matches if x is not None]
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matches.append(kernel_match)
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rc, other = install_packages(
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etp_client,
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atomsdata = matches,
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check_critical_updates = False
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)
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return rc
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finally:
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if acquired and (etp_client is not None):
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release_entropy_locks(etp_client)
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if etp_client is not None:
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etp_client.shutdown()
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def _list_kernels(args):
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etp_client = None
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acquired = False
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try:
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etp_client = Client()
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acquired = acquire_entropy_locks(etp_client)
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if not acquired:
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print_error(brown(_("Another Entropy is currently running.")))
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return 1
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matches, rc = _get_kernels(etp_client)
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if (rc != 0) or (not matches):
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print_warning(_("No kernel packages found"))
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return 1
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key_sorter = lambda (x, y): \
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etp_client.open_repository(y).retrieveAtom(x)
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for pkg_id, pkg_repo in sorted(matches, key = key_sorter):
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repo = etp_client.open_repository(pkg_repo)
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print_package_info(pkg_id, repo,
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showRepoOnQuiet = True, Equo = etp_client,
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extended = etpUi['verbose'])
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return 0
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finally:
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if acquired and (etp_client is not None):
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release_entropy_locks(etp_client)
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if etp_client is not None:
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etp_client.shutdown()
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def _print_help(args):
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print_info("%s - %s" % (blue(APP_NAME),
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teal(_("Sabayon Linux Kernel Switcher BETA")),))
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print_info(" %s:\t%s %s" % (purple(_("switch kernel")),
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brown(APP_NAME), darkgreen("switch <kernel package>")))
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print_info(" %s:\t%s %s" % (purple(_("list kernels")), brown(APP_NAME),
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darkgreen("list"),))
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print_info(" %s:\t\t%s %s" % (purple(_("this help")), brown(APP_NAME),
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darkgreen("help")))
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if not args:
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return 1
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return 0
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args_map = {
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'switch': _switch_kernel,
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'list': _list_kernels,
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'help': _print_help,
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'__fallback__': _print_help,
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}
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argv = sys.argv[1:]
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argv = []
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for arg in sys.argv[1:]:
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if arg == "--nocolor":
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nocolor()
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elif arg in ("--quiet", "-q"):
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etpUi['quiet'] = True
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elif arg in ("--verbose", "-v"):
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etpUi['verbose'] = True
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elif arg in ("--pretend", "-p"):
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etpUi['pretend'] = True
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elif arg in ("--ask", "-a"):
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etpUi['ask'] = True
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else:
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argv.append(arg)
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if not argv:
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argv.append("help")
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cmd, args = argv[0], argv[1:]
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func = args_map.get(cmd, args_map.get("__fallback__"))
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rc = func(args)
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raise SystemExit(rc)
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