Package module: refactor package-manager into multiple classes
This commit is contained in:
Adriaan de Groot
parent
913521d022
commit
d66434985e
@ -21,47 +21,146 @@
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# You should have received a copy of the GNU General Public License
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# along with Calamares. If not, see <http://www.gnu.org/licenses/>.
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import abc
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from string import Template
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import subprocess
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import libcalamares
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from libcalamares.utils import check_target_env_call, target_env_call
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from string import Template
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class PackageManager:
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class PackageManager(metaclass=abc.ABCMeta):
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"""
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Package manager class.
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Package manager base class. A subclass implements package management
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for a specific backend, and must have a class property `backend`
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with the string identifier for that backend.
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:param backend:
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Subclasses are collected below to populate the list of possible
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backends.
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"""
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def __init__(self, backend):
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self.backend = backend
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backend = None
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@abc.abstractmethod
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def install(self, pkgs, from_local=False):
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""" Installs packages.
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pass
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@abc.abstractmethod
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def remove(self, pkgs):
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""" Removes packages.
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:param pkgs:
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:param from_local:
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"""
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if self.backend == "packagekit":
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pass
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@abc.abstractmethod
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def update_db(self):
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pass
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def run(self, script):
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if script != "":
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check_target_env_call(script.split(" "))
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class PMPackageKit(PackageManager):
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backend = "packagekit"
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def install(self, pkgs, from_local=False):
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for pkg in pkgs:
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check_target_env_call(["pkcon", "-py", "install", pkg])
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elif self.backend == "zypp":
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def remove(self, pkgs):
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for pkg in pkgs:
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check_target_env_call(["pkcon", "-py", "remove", pkg])
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def update_db(self):
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check_target_env_call(["pkcon", "refresh"])
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class PMZypp(PackageManager):
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backend = "zypp"
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def install(self, pkgs, from_local=False):
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check_target_env_call(["zypper", "--non-interactive",
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"--quiet-install", "install",
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"--auto-agree-with-licenses",
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"install"] + pkgs)
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elif self.backend == "yum":
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def remove(self, pkgs):
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check_target_env_call(["zypper", "--non-interactive",
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"remove"] + pkgs)
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def update_db(self):
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check_target_env_call(["zypper", "--non-interactive", "update"])
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class PMYum(PackageManager):
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backend = "yum"
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def install(self, pkgs, from_local=False):
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check_target_env_call(["yum", "install", "-y"] + pkgs)
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elif self.backend == "dnf":
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def remove(self, pkgs):
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check_target_env_call(["yum", "--disablerepo=*", "-C", "-y",
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"remove"] + pkgs)
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def update_db(self):
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# Doesn't need updates
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pass
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class PMDnf(PackageManager):
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backend = "dnf"
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def install(self, pkgs, from_local=False):
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check_target_env_call(["dnf", "install", "-y"] + pkgs)
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elif self.backend == "urpmi":
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def remove(self, pkgs):
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# ignore the error code for now because dnf thinks removing a
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# nonexistent package is an error
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target_env_call(["dnf", "--disablerepo=*", "-C", "-y",
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"remove"] + pkgs)
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def update_db(self):
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# Doesn't need to update explicitly
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pass
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class PMUrpmi(PackageManager):
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backend = "urpmi";
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def install(self, pkgs, from_local=False):
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check_target_env_call(["urpmi", "--download-all", "--no-suggests",
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"--no-verify-rpm", "--fastunsafe",
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"--ignoresize", "--nolock",
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"--auto"] + pkgs)
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elif self.backend == "apt":
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def remove(self, pkgs):
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check_target_env_call(["urpme", "--auto"] + pkgs)
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def update_db(self):
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check_target_env_call(["urpmi.update", "-a"])
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class PMApt(PackageManager):
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backend = "apt"
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def install(self, pkgs, from_local=False):
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check_target_env_call(["apt-get", "-q", "-y", "install"] + pkgs)
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elif self.backend == "pacman":
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def remove(self, pkgs):
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check_target_env_call(["apt-get", "--purge", "-q", "-y",
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"remove"] + pkgs)
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check_target_env_call(["apt-get", "--purge", "-q", "-y",
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"autoremove"])
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def update_db(self):
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check_target_env_call(["apt-get", "update"])
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class PMPacman(PackageManager):
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backend = "pacman"
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def install(self, pkgs, from_local=False):
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if from_local:
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pacman_flags = "-U"
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else:
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@ -69,64 +168,58 @@ class PackageManager:
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check_target_env_call(["pacman", pacman_flags,
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"--noconfirm"] + pkgs)
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elif self.backend == "portage":
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def remove(self, pkgs):
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check_target_env_call(["pacman", "-Rs", "--noconfirm"] + pkgs)
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def update_db(self):
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check_target_env_call(["pacman", "-Sy"])
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class PMPortage(PackageManager):
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backend = "portage"
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def install(self, pkgs, from_local=False):
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check_target_env_call(["emerge", "-v"] + pkgs)
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elif self.backend == "entropy":
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def remove(self, pkgs):
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check_target_env_call(["emerge", "-C"] + pkgs)
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check_target_env_call(["emerge", "--depclean", "-q"])
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def update_db(self):
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check_target_env_call(["emerge", "--sync"])
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class PMEntropy(PackageManager):
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backend = "entropy"
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def install(self, pkgs, from_local=False):
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check_target_env_call(["equo", "i"] + pkgs)
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def remove(self, pkgs):
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""" Removes packages.
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:param pkgs:
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"""
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if self.backend == "packagekit":
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for pkg in pkgs:
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check_target_env_call(["pkcon", "-py", "remove", pkg])
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elif self.backend == "zypp":
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check_target_env_call(["zypper", "--non-interactive",
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"remove"] + pkgs)
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elif self.backend == "yum":
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check_target_env_call(["yum", "--disablerepo=*", "-C", "-y",
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"remove"] + pkgs)
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elif self.backend == "dnf":
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# ignore the error code for now because dnf thinks removing a
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# nonexistent package is an error
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target_env_call(["dnf", "--disablerepo=*", "-C", "-y",
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"remove"] + pkgs)
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elif self.backend == "urpmi":
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check_target_env_call(["urpme", "--auto"] + pkgs)
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elif self.backend == "apt":
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check_target_env_call(["apt-get", "--purge", "-q", "-y",
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"remove"] + pkgs)
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check_target_env_call(["apt-get", "--purge", "-q", "-y",
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"autoremove"])
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elif self.backend == "pacman":
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check_target_env_call(["pacman", "-Rs", "--noconfirm"] + pkgs)
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elif self.backend == "portage":
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check_target_env_call(["emerge", "-C"] + pkgs)
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check_target_env_call(["emerge", "--depclean", "-q"])
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elif self.backend == "entropy":
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check_target_env_call(["equo", "rm"] + pkgs)
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def update_db(self):
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if self.backend == "packagekit":
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check_target_env_call(["pkcon", "refresh"])
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elif self.backend == "zypp":
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check_target_env_call(["zypper", "--non-interactive", "update"])
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elif self.backend == "urpmi":
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check_target_env_call(["urpmi.update", "-a"])
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elif self.backend == "apt":
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check_target_env_call(["apt-get", "update"])
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elif self.backend == "pacman":
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check_target_env_call(["pacman", "-Sy"])
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elif self.backend == "portage":
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check_target_env_call(["emerge", "--sync"])
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elif self.backend == "entropy":
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check_target_env_call(["equo", "update"])
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def run(self, script):
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if script != "":
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check_target_env_call(script.split(" "))
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class PMDummy(PackageManager):
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backend = "dummy"
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def install(self, pkgs, from_local=False):
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libcalamares.utils.debug("Installing " + str(pkgs))
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def remove(self, pkgs):
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libcalamares.utils.debug("Removing " + str(pkgs))
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def update_db(self):
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libcalamares.utils.debug("Updating DB")
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backend_managers = [
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(c.backend, c)
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for c in globals().values()
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if type(c) is abc.ABCMeta and issubclass(c, PackageManager) and c.backend ]
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def subst_locale(list):
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@ -204,11 +297,13 @@ def run():
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"""
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backend = libcalamares.job.configuration.get("backend")
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if backend not in ("packagekit", "zypp", "yum", "dnf", "urpmi", "apt",
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"pacman", "portage", "entropy"):
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for identifier, impl in backend_managers:
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if identifier == backend:
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pkgman = impl()
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break
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else:
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return "Bad backend", "backend=\"{}\"".format(backend)
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pkgman = PackageManager(backend)
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operations = libcalamares.job.configuration.get("operations", [])
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update_db = libcalamares.job.configuration.get("update_db", False)
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